From 567262704fc0da7d82d210c54e884c519001f47d Mon Sep 17 00:00:00 2001
From: Dale Curtis <dalecurtis@chromium.org>
Date: Fri, 25 Aug 2017 16:15:22 -0700
Subject: [PATCH] Use NULL_IF_CONFIG_SMALL for AVOption tables.

Saves ~12kb of binary size and seems like a good use of
CONFIG_SMALL.

Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
---
 libavcodec/avdct.c          |  54 ++--
 libavcodec/h264dec.c        |   6 +-
 libavcodec/mpeg4videodec.c  |   4 +-
 libavcodec/options.c        |  36 +--
 libavcodec/options_table.h  | 639 ++++++++++++++++++++++----------------------
 libavformat/avidec.c        |   2 +-
 libavformat/avio.c          |   6 +-
 libavformat/aviobuf.c       |   2 +-
 libavformat/matroskadec.c   |   4 +-
 libavformat/mov.c           |  30 +--
 libavformat/mp3dec.c        |   2 +-
 libavformat/options_table.h | 133 ++++-----
 libavformat/wavdec.c        |   2 +-
 13 files changed, 461 insertions(+), 459 deletions(-)

diff --git a/libavcodec/avdct.c b/libavcodec/avdct.c
index 80aca8872b..76c5edf8d0 100644
--- a/libavcodec/avdct.c
+++ b/libavcodec/avdct.c
@@ -33,40 +33,40 @@
 #define D AV_OPT_FLAG_DECODING_PARAM
 
 static const AVOption avdct_options[] = {
-{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
-{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
-{"fastint", "fast integer (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
-{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
-{"mmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
-{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
-{"faan", "floating point AAN DCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
-
-{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
-{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"int", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simple", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplemmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"arm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"dct", NULL_IF_CONFIG_SMALL("DCT algorithm"), OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
+{"auto", NULL_IF_CONFIG_SMALL("autoselect a good one"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
+{"fastint", NULL_IF_CONFIG_SMALL("fast integer (experimental / for debugging)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
+{"int", NULL_IF_CONFIG_SMALL("accurate integer"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
+{"mmx", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
+{"altivec", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
+{"faan", NULL_IF_CONFIG_SMALL("floating point AAN DCT (experimental / for debugging)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
+
+{"idct", NULL_IF_CONFIG_SMALL("select IDCT implementation"), OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
+{"auto", NULL_IF_CONFIG_SMALL("autoselect a good one"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"int", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simple", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplemmx", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"arm", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"altivec", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
 #if FF_API_ARCH_SH4
-{"sh4", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SH4 }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"sh4", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SH4 }, INT_MIN, INT_MAX, V|E|D, "idct"},
 #endif
-{"simplearm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplearmv5te", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplearmv6", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simpleneon", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearm", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearmv5te", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplearmv6", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simpleneon", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
 #if FF_API_ARCH_ALPHA
-{"simplealpha", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEALPHA }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"simplealpha", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEALPHA }, INT_MIN, INT_MAX, V|E|D, "idct"},
 #endif
 #if FF_API_UNUSED_MEMBERS
-{"ipp", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"ipp", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"},
 #endif
-{"xvid", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"xvidmmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"faani", "floating point AAN IDCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
-{"simpleauto", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"xvid", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"xvidmmx", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"faani", NULL_IF_CONFIG_SMALL("floating point AAN IDCT (experimental / for debugging)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
+{"simpleauto", NULL_IF_CONFIG_SMALL("experimental / for debugging"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
 
-{"bits_per_sample", "", OFFSET(bits_per_sample), AV_OPT_TYPE_INT, {.i64 = 8 }, 0, 14, 0,},
+{"bits_per_sample", NULL_IF_CONFIG_SMALL(""), OFFSET(bits_per_sample), AV_OPT_TYPE_INT, {.i64 = 8 }, 0, 14, 0,},
 {NULL},
 };
 
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 49ebeca6d8..51df12f16a 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -1043,9 +1043,9 @@ static int h264_decode_frame(AVCodecContext *avctx, void *data,
 #define OFFSET(x) offsetof(H264Context, x)
 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
 static const AVOption h264_options[] = {
-    { "is_avc", "is avc", OFFSET(is_avc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0 },
-    { "nal_length_size", "nal_length_size", OFFSET(nal_length_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, 0 },
-    { "enable_er", "Enable error resilience on damaged frames (unsafe)", OFFSET(enable_er), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
+    { "is_avc", NULL_IF_CONFIG_SMALL("is avc"), OFFSET(is_avc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0 },
+    { "nal_length_size", NULL_IF_CONFIG_SMALL("nal_length_size"), OFFSET(nal_length_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, 0 },
+    { "enable_er", NULL_IF_CONFIG_SMALL("Enable error resilience on damaged frames (unsafe)"), OFFSET(enable_er), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
     { NULL },
 };
 
diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index 8f85e9362d..4f8cd1e34a 100644
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -2812,8 +2812,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
 }
 
 static const AVOption mpeg4_options[] = {
-    {"quarter_sample", "1/4 subpel MC", offsetof(MpegEncContext, quarter_sample), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0},
-    {"divx_packed", "divx style packed b frames", offsetof(MpegEncContext, divx_packed), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0},
+    {"quarter_sample", NULL_IF_CONFIG_SMALL("1/4 subpel MC"), offsetof(MpegEncContext, quarter_sample), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0},
+    {"divx_packed", NULL_IF_CONFIG_SMALL("divx style packed b frames"), offsetof(MpegEncContext, divx_packed), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0},
     {NULL}
 };
 
diff --git a/libavcodec/options.c b/libavcodec/options.c
index 82e12179a6..32b3c3f69a 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -300,15 +300,15 @@ const AVClass *avcodec_get_class(void)
 #define FOFFSET(x) offsetof(AVFrame,x)
 
 static const AVOption frame_options[]={
-{"best_effort_timestamp", "", FOFFSET(best_effort_timestamp), AV_OPT_TYPE_INT64, {.i64 = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, 0},
-{"pkt_pos", "", FOFFSET(pkt_pos), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0},
-{"pkt_size", "", FOFFSET(pkt_size), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0},
-{"sample_aspect_ratio", "", FOFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
-{"width", "", FOFFSET(width), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
-{"height", "", FOFFSET(height), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
-{"format", "", FOFFSET(format), AV_OPT_TYPE_INT, {.i64 = -1 }, 0, INT_MAX, 0},
-{"channel_layout", "", FOFFSET(channel_layout), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, 0},
-{"sample_rate", "", FOFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"best_effort_timestamp", NULL_IF_CONFIG_SMALL(""), FOFFSET(best_effort_timestamp), AV_OPT_TYPE_INT64, {.i64 = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, 0},
+{"pkt_pos", NULL_IF_CONFIG_SMALL(""), FOFFSET(pkt_pos), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0},
+{"pkt_size", NULL_IF_CONFIG_SMALL(""), FOFFSET(pkt_size), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0},
+{"sample_aspect_ratio", NULL_IF_CONFIG_SMALL(""), FOFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
+{"width", NULL_IF_CONFIG_SMALL(""), FOFFSET(width), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"height", NULL_IF_CONFIG_SMALL(""), FOFFSET(height), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"format", NULL_IF_CONFIG_SMALL(""), FOFFSET(format), AV_OPT_TYPE_INT, {.i64 = -1 }, 0, INT_MAX, 0},
+{"channel_layout", NULL_IF_CONFIG_SMALL(""), FOFFSET(channel_layout), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, 0},
+{"sample_rate", NULL_IF_CONFIG_SMALL(""), FOFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
 {NULL},
 };
 
@@ -327,13 +327,13 @@ const AVClass *avcodec_get_frame_class(void)
 #define SROFFSET(x) offsetof(AVSubtitleRect,x)
 
 static const AVOption subtitle_rect_options[]={
-{"x", "", SROFFSET(x), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
-{"y", "", SROFFSET(y), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
-{"w", "", SROFFSET(w), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
-{"h", "", SROFFSET(h), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
-{"type", "", SROFFSET(type), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
-{"flags", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0, "flags"},
-{"forced", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0},
+{"x", NULL_IF_CONFIG_SMALL(""), SROFFSET(x), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"y", NULL_IF_CONFIG_SMALL(""), SROFFSET(y), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"w", NULL_IF_CONFIG_SMALL(""), SROFFSET(w), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"h", NULL_IF_CONFIG_SMALL(""), SROFFSET(h), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"type", NULL_IF_CONFIG_SMALL(""), SROFFSET(type), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"flags", NULL_IF_CONFIG_SMALL(""), SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0, "flags"},
+{"forced", NULL_IF_CONFIG_SMALL(""), SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0},
 {NULL},
 };
 
@@ -385,8 +385,8 @@ typedef struct Dummy3Context {
 #define OFFSET(x) offsetof(Dummy12Context, x)
 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
 static const AVOption dummy_options[] = {
-    { "str", "set str", OFFSET(str), AV_OPT_TYPE_STRING, { .str = "i'm src default value" }, 0, 0, VE},
-    { "num", "set num", OFFSET(num), AV_OPT_TYPE_INT,    { .i64 = 1500100900 },    0, INT_MAX, VE},
+    { "str", NULL_IF_CONFIG_SMALL("set str"), OFFSET(str), AV_OPT_TYPE_STRING, { .str = "i'm src default value" }, 0, 0, VE},
+    { "num", NULL_IF_CONFIG_SMALL("set num"), OFFSET(num), AV_OPT_TYPE_INT,    { .i64 = 1500100900 },    0, INT_MAX, VE},
     { NULL },
 };
 
diff --git a/libavcodec/options_table.h b/libavcodec/options_table.h
index 12712fb541..f2ec96a7bc 100644
--- a/libavcodec/options_table.h
+++ b/libavcodec/options_table.h
@@ -27,6 +27,7 @@
 #include <stdint.h>
 
 #include "libavutil/opt.h"
+#include "libavutil/internal.h"
 #include "avcodec.h"
 #include "version.h"
 
@@ -42,93 +43,93 @@
 #define AV_CODEC_DEFAULT_BITRATE 200*1000
 
 static const AVOption avcodec_options[] = {
-{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT64, {.i64 = AV_CODEC_DEFAULT_BITRATE }, 0, INT64_MAX, A|V|E},
-{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT64, {.i64 = 128*1000 }, 0, INT_MAX, A|E},
-{"bt", "Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far "
+{"b", NULL_IF_CONFIG_SMALL("set bitrate (in bits/s)"), OFFSET(bit_rate), AV_OPT_TYPE_INT64, {.i64 = AV_CODEC_DEFAULT_BITRATE }, 0, INT64_MAX, A|V|E},
+{"ab", NULL_IF_CONFIG_SMALL("set bitrate (in bits/s)"), OFFSET(bit_rate), AV_OPT_TYPE_INT64, {.i64 = 128*1000 }, 0, INT_MAX, A|E},
+{"bt", NULL_IF_CONFIG_SMALL("Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far "
        "ratecontrol is willing to deviate from the target average bitrate value. This is not related "
-       "to minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality.",
+       "to minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality."),
        OFFSET(bit_rate_tolerance), AV_OPT_TYPE_INT, {.i64 = AV_CODEC_DEFAULT_BITRATE*20 }, 1, INT_MAX, V|E},
 {"flags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, UINT_MAX, V|A|S|E|D, "flags"},
-{"unaligned", "allow decoders to produce unaligned output", 0, AV_OPT_TYPE_CONST, { .i64 = AV_CODEC_FLAG_UNALIGNED }, INT_MIN, INT_MAX, V | D, "flags" },
-{"mv4", "use four motion vectors per macroblock (MPEG-4)", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_4MV }, INT_MIN, INT_MAX, V|E, "flags"},
-{"qpel", "use 1/4-pel motion compensation", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"},
-{"loop", "use loop filter", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_LOOP_FILTER }, INT_MIN, INT_MAX, V|E, "flags"},
-{"qscale", "use fixed qscale", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_QSCALE }, INT_MIN, INT_MAX, 0, "flags"},
+{"unaligned", NULL_IF_CONFIG_SMALL("allow decoders to produce unaligned output"), 0, AV_OPT_TYPE_CONST, { .i64 = AV_CODEC_FLAG_UNALIGNED }, INT_MIN, INT_MAX, V | D, "flags" },
+{"mv4", NULL_IF_CONFIG_SMALL("use four motion vectors per macroblock (MPEG-4)"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_4MV }, INT_MIN, INT_MAX, V|E, "flags"},
+{"qpel", NULL_IF_CONFIG_SMALL("use 1/4-pel motion compensation"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"},
+{"loop", NULL_IF_CONFIG_SMALL("use loop filter"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_LOOP_FILTER }, INT_MIN, INT_MAX, V|E, "flags"},
+{"qscale", NULL_IF_CONFIG_SMALL("use fixed qscale"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_QSCALE }, INT_MIN, INT_MAX, 0, "flags"},
 #if FF_API_GMC
-{"gmc", "use gmc", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_GMC }, INT_MIN, INT_MAX, V|E, "flags"},
+{"gmc", NULL_IF_CONFIG_SMALL("use gmc"), 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_GMC }, INT_MIN, INT_MAX, V|E, "flags"},
 #endif
 #if FF_API_MV0
-{"mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_MV0 }, INT_MIN, INT_MAX, V|E, "flags"},
+{"mv0", NULL_IF_CONFIG_SMALL("always try a mb with mv=<0,0>"), 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_MV0 }, INT_MIN, INT_MAX, V|E, "flags"},
 #endif
 #if FF_API_INPUT_PRESERVED
 {"input_preserved", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_INPUT_PRESERVED }, INT_MIN, INT_MAX, 0, "flags"},
 #endif
-{"pass1", "use internal 2-pass ratecontrol in first  pass mode", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PASS1 }, INT_MIN, INT_MAX, 0, "flags"},
-{"pass2", "use internal 2-pass ratecontrol in second pass mode", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PASS2 }, INT_MIN, INT_MAX, 0, "flags"},
-{"gray", "only decode/encode grayscale", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_GRAY }, INT_MIN, INT_MAX, V|E|D, "flags"},
+{"pass1", NULL_IF_CONFIG_SMALL("use internal 2-pass ratecontrol in first  pass mode"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PASS1 }, INT_MIN, INT_MAX, 0, "flags"},
+{"pass2", NULL_IF_CONFIG_SMALL("use internal 2-pass ratecontrol in second pass mode"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PASS2 }, INT_MIN, INT_MAX, 0, "flags"},
+{"gray", NULL_IF_CONFIG_SMALL("only decode/encode grayscale"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_GRAY }, INT_MIN, INT_MAX, V|E|D, "flags"},
 #if FF_API_EMU_EDGE
-{"emu_edge", "do not draw edges", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_EMU_EDGE }, INT_MIN, INT_MAX, 0, "flags"},
+{"emu_edge", NULL_IF_CONFIG_SMALL("do not draw edges"), 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_EMU_EDGE }, INT_MIN, INT_MAX, 0, "flags"},
 #endif
-{"psnr", "error[?] variables will be set during encoding", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PSNR }, INT_MIN, INT_MAX, V|E, "flags"},
-{"truncated", "Input bitstream might be randomly truncated", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_TRUNCATED }, INT_MIN, INT_MAX, V|D, "flags"},
+{"psnr", NULL_IF_CONFIG_SMALL("error[?] variables will be set during encoding"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_PSNR }, INT_MIN, INT_MAX, V|E, "flags"},
+{"truncated", NULL_IF_CONFIG_SMALL("Input bitstream might be randomly truncated"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_TRUNCATED }, INT_MIN, INT_MAX, V|D, "flags"},
 #if FF_API_NORMALIZE_AQP
-{"naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_NORMALIZE_AQP }, INT_MIN, INT_MAX, V|E, "flags"},
-#endif
-{"ildct", "use interlaced DCT", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_INTERLACED_DCT }, INT_MIN, INT_MAX, V|E, "flags"},
-{"low_delay", "force low delay", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_LOW_DELAY }, INT_MIN, INT_MAX, V|D|E, "flags"},
-{"global_header", "place global headers in extradata instead of every keyframe", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_GLOBAL_HEADER }, INT_MIN, INT_MAX, V|A|E, "flags"},
-{"bitexact", "use only bitexact functions (except (I)DCT)", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_BITEXACT }, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
-{"aic", "H.263 advanced intra coding / MPEG-4 AC prediction", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_AC_PRED }, INT_MIN, INT_MAX, V|E, "flags"},
-{"ilme", "interlaced motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_INTERLACED_ME }, INT_MIN, INT_MAX, V|E, "flags"},
-{"cgop", "closed GOP", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_CLOSED_GOP }, INT_MIN, INT_MAX, V|E, "flags"},
-{"output_corrupt", "Output even potentially corrupted frames", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_OUTPUT_CORRUPT }, INT_MIN, INT_MAX, V|D, "flags"},
-{"fast", "allow non-spec-compliant speedup tricks", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_FAST }, INT_MIN, INT_MAX, V|E, "flags2"},
-{"noout", "skip bitstream encoding", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_NO_OUTPUT }, INT_MIN, INT_MAX, V|E, "flags2"},
-{"ignorecrop", "ignore cropping information from sps", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_IGNORE_CROP }, INT_MIN, INT_MAX, V|D, "flags2"},
-{"local_header", "place global headers at every keyframe instead of in extradata", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_LOCAL_HEADER }, INT_MIN, INT_MAX, V|E, "flags2"},
-{"chunks", "Frame data might be split into multiple chunks", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_CHUNKS }, INT_MIN, INT_MAX, V|D, "flags2"},
-{"showall", "Show all frames before the first keyframe", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_SHOW_ALL }, INT_MIN, INT_MAX, V|D, "flags2"},
-{"export_mvs", "export motion vectors through frame side data", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_EXPORT_MVS}, INT_MIN, INT_MAX, V|D, "flags2"},
-{"skip_manual", "do not skip samples and export skip information as frame side data", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_SKIP_MANUAL}, INT_MIN, INT_MAX, V|D, "flags2"},
-{"ass_ro_flush_noop", "do not reset ASS ReadOrder field on flush", 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_RO_FLUSH_NOOP}, INT_MIN, INT_MAX, S|D, "flags2"},
+{"naq", NULL_IF_CONFIG_SMALL("normalize adaptive quantization"), 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_NORMALIZE_AQP }, INT_MIN, INT_MAX, V|E, "flags"},
+#endif
+{"ildct", NULL_IF_CONFIG_SMALL("use interlaced DCT"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_INTERLACED_DCT }, INT_MIN, INT_MAX, V|E, "flags"},
+{"low_delay", NULL_IF_CONFIG_SMALL("force low delay"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_LOW_DELAY }, INT_MIN, INT_MAX, V|D|E, "flags"},
+{"global_header", NULL_IF_CONFIG_SMALL("place global headers in extradata instead of every keyframe"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_GLOBAL_HEADER }, INT_MIN, INT_MAX, V|A|E, "flags"},
+{"bitexact", NULL_IF_CONFIG_SMALL("use only bitexact functions (except (I)DCT)"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_BITEXACT }, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
+{"aic", NULL_IF_CONFIG_SMALL("H.263 advanced intra coding / MPEG-4 AC prediction"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_AC_PRED }, INT_MIN, INT_MAX, V|E, "flags"},
+{"ilme", NULL_IF_CONFIG_SMALL("interlaced motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_INTERLACED_ME }, INT_MIN, INT_MAX, V|E, "flags"},
+{"cgop", NULL_IF_CONFIG_SMALL("closed GOP"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_CLOSED_GOP }, INT_MIN, INT_MAX, V|E, "flags"},
+{"output_corrupt", NULL_IF_CONFIG_SMALL("Output even potentially corrupted frames"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG_OUTPUT_CORRUPT }, INT_MIN, INT_MAX, V|D, "flags"},
+{"fast", NULL_IF_CONFIG_SMALL("allow non-spec-compliant speedup tricks"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_FAST }, INT_MIN, INT_MAX, V|E, "flags2"},
+{"noout", NULL_IF_CONFIG_SMALL("skip bitstream encoding"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_NO_OUTPUT }, INT_MIN, INT_MAX, V|E, "flags2"},
+{"ignorecrop", NULL_IF_CONFIG_SMALL("ignore cropping information from sps"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_IGNORE_CROP }, INT_MIN, INT_MAX, V|D, "flags2"},
+{"local_header", NULL_IF_CONFIG_SMALL("place global headers at every keyframe instead of in extradata"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_LOCAL_HEADER }, INT_MIN, INT_MAX, V|E, "flags2"},
+{"chunks", NULL_IF_CONFIG_SMALL("Frame data might be split into multiple chunks"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_CHUNKS }, INT_MIN, INT_MAX, V|D, "flags2"},
+{"showall", NULL_IF_CONFIG_SMALL("Show all frames before the first keyframe"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_SHOW_ALL }, INT_MIN, INT_MAX, V|D, "flags2"},
+{"export_mvs", NULL_IF_CONFIG_SMALL("export motion vectors through frame side data"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_EXPORT_MVS}, INT_MIN, INT_MAX, V|D, "flags2"},
+{"skip_manual", NULL_IF_CONFIG_SMALL("do not skip samples and export skip information as frame side data"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_SKIP_MANUAL}, INT_MIN, INT_MAX, V|D, "flags2"},
+{"ass_ro_flush_noop", NULL_IF_CONFIG_SMALL("do not reset ASS ReadOrder field on flush"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_CODEC_FLAG2_RO_FLUSH_NOOP}, INT_MIN, INT_MAX, S|D, "flags2"},
 #if FF_API_MOTION_EST
-{"me_method", "set motion estimation method", OFFSET(me_method), AV_OPT_TYPE_INT, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method"},
-{"zero", "zero motion estimation (fastest)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_ZERO }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"full", "full motion estimation (slowest)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"epzs", "EPZS motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"esa", "esa motion estimation (alias for full)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"tesa", "tesa motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_TESA }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"dia", "diamond motion estimation (alias for EPZS)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"log", "log motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_LOG }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"phods", "phods motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_PHODS }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"x1", "X1 motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_X1 }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"hex", "hex motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_HEX }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"umh", "umh motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_UMH }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"iter", "iter motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_ITER }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"me_method", NULL_IF_CONFIG_SMALL("set motion estimation method"), OFFSET(me_method), AV_OPT_TYPE_INT, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method"},
+{"zero", NULL_IF_CONFIG_SMALL("zero motion estimation (fastest)"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_ZERO }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"full", NULL_IF_CONFIG_SMALL("full motion estimation (slowest)"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"epzs", NULL_IF_CONFIG_SMALL("EPZS motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"esa", NULL_IF_CONFIG_SMALL("esa motion estimation (alias for full)"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"tesa", NULL_IF_CONFIG_SMALL("tesa motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_TESA }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"dia", NULL_IF_CONFIG_SMALL("diamond motion estimation (alias for EPZS)"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"log", NULL_IF_CONFIG_SMALL("log motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_LOG }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"phods", NULL_IF_CONFIG_SMALL("phods motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_PHODS }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"x1", NULL_IF_CONFIG_SMALL("X1 motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_X1 }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"hex", NULL_IF_CONFIG_SMALL("hex motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_HEX }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"umh", NULL_IF_CONFIG_SMALL("umh motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_UMH }, INT_MIN, INT_MAX, V|E, "me_method" },
+{"iter", NULL_IF_CONFIG_SMALL("iter motion estimation"), 0, AV_OPT_TYPE_CONST, {.i64 = ME_ITER }, INT_MIN, INT_MAX, V|E, "me_method" },
 #endif
 {"time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, INT_MAX},
-{"g", "set the group of picture (GOP) size", OFFSET(gop_size), AV_OPT_TYPE_INT, {.i64 = 12 }, INT_MIN, INT_MAX, V|E},
-{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D|E},
-{"ac", "set number of audio channels", OFFSET(channels), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D|E},
-{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|E},
+{"g", NULL_IF_CONFIG_SMALL("set the group of picture (GOP) size"), OFFSET(gop_size), AV_OPT_TYPE_INT, {.i64 = 12 }, INT_MIN, INT_MAX, V|E},
+{"ar", NULL_IF_CONFIG_SMALL("set audio sampling rate (in Hz)"), OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D|E},
+{"ac", NULL_IF_CONFIG_SMALL("set number of audio channels"), OFFSET(channels), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D|E},
+{"cutoff", NULL_IF_CONFIG_SMALL("set cutoff bandwidth"), OFFSET(cutoff), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|E},
 {"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|E},
 {"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 {"delay", NULL, OFFSET(delay), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
-{"qcomp", "video quantizer scale compression (VBR). Constant of ratecontrol equation. "
-          "Recommended range for default rc_eq: 0.0-1.0",
+{"qcomp", NULL_IF_CONFIG_SMALL("video quantizer scale compression (VBR). Constant of ratecontrol equation. "
+          "Recommended range for default rc_eq: 0.0-1.0"),
           OFFSET(qcompress), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -FLT_MAX, FLT_MAX, V|E},
-{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E},
-{"qmin", "minimum video quantizer scale (VBR)", OFFSET(qmin), AV_OPT_TYPE_INT, {.i64 = 2 }, -1, 69, V|E},
-{"qmax", "maximum video quantizer scale (VBR)", OFFSET(qmax), AV_OPT_TYPE_INT, {.i64 = 31 }, -1, 1024, V|E},
-{"qdiff", "maximum difference between the quantizer scales (VBR)", OFFSET(max_qdiff), AV_OPT_TYPE_INT, {.i64 = 3 }, INT_MIN, INT_MAX, V|E},
-{"bf", "set maximum number of B-frames between non-B-frames", OFFSET(max_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, -1, INT_MAX, V|E},
-{"b_qfactor", "QP factor between P- and B-frames", OFFSET(b_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
+{"qblur", NULL_IF_CONFIG_SMALL("video quantizer scale blur (VBR)"), OFFSET(qblur), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E},
+{"qmin", NULL_IF_CONFIG_SMALL("minimum video quantizer scale (VBR)"), OFFSET(qmin), AV_OPT_TYPE_INT, {.i64 = 2 }, -1, 69, V|E},
+{"qmax", NULL_IF_CONFIG_SMALL("maximum video quantizer scale (VBR)"), OFFSET(qmax), AV_OPT_TYPE_INT, {.i64 = 31 }, -1, 1024, V|E},
+{"qdiff", NULL_IF_CONFIG_SMALL("maximum difference between the quantizer scales (VBR)"), OFFSET(max_qdiff), AV_OPT_TYPE_INT, {.i64 = 3 }, INT_MIN, INT_MAX, V|E},
+{"bf", NULL_IF_CONFIG_SMALL("set maximum number of B-frames between non-B-frames"), OFFSET(max_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, -1, INT_MAX, V|E},
+{"b_qfactor", NULL_IF_CONFIG_SMALL("QP factor between P- and B-frames"), OFFSET(b_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
 #if FF_API_RC_STRATEGY
-{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"rc_strategy", NULL_IF_CONFIG_SMALL("ratecontrol method"), OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
 #if FF_API_PRIVATE_OPT
-{"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, V|E},
-{"ps", "RTP payload size in bytes", OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"b_strategy", NULL_IF_CONFIG_SMALL("strategy to choose between I/P/B-frames"), OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, V|E},
+{"ps", NULL_IF_CONFIG_SMALL("RTP payload size in bytes"), OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
 #if FF_API_STAT_BITS
 {"mv_bits", NULL, OFFSET(mv_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
@@ -142,83 +143,83 @@ static const AVOption avcodec_options[] = {
 {"frame_bits", NULL, OFFSET(frame_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 #endif
 {"codec_tag", NULL, OFFSET(codec_tag), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
-{"bug", "work around not autodetected encoder bugs", OFFSET(workaround_bugs), AV_OPT_TYPE_FLAGS, {.i64 = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
+{"bug", NULL_IF_CONFIG_SMALL("work around not autodetected encoder bugs"), OFFSET(workaround_bugs), AV_OPT_TYPE_FLAGS, {.i64 = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
 {"autodetect", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
 #if FF_API_OLD_MSMPEG4
-{"old_msmpeg4", "some old lavc-generated MSMPEG4v3 files (no autodetection)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_OLD_MSMPEG4 }, INT_MIN, INT_MAX, V|D, "bug"},
+{"old_msmpeg4", NULL_IF_CONFIG_SMALL("some old lavc-generated MSMPEG4v3 files (no autodetection)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_OLD_MSMPEG4 }, INT_MIN, INT_MAX, V|D, "bug"},
 #endif
-{"xvid_ilace", "Xvid interlacing bug (autodetected if FOURCC == XVIX)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_XVID_ILACE }, INT_MIN, INT_MAX, V|D, "bug"},
-{"ump4", "(autodetected if FOURCC == UMP4)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_UMP4 }, INT_MIN, INT_MAX, V|D, "bug"},
-{"no_padding", "padding bug (autodetected)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_NO_PADDING }, INT_MIN, INT_MAX, V|D, "bug"},
+{"xvid_ilace", NULL_IF_CONFIG_SMALL("Xvid interlacing bug (autodetected if FOURCC == XVIX)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_XVID_ILACE }, INT_MIN, INT_MAX, V|D, "bug"},
+{"ump4", NULL_IF_CONFIG_SMALL("(autodetected if FOURCC == UMP4)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_UMP4 }, INT_MIN, INT_MAX, V|D, "bug"},
+{"no_padding", NULL_IF_CONFIG_SMALL("padding bug (autodetected)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_NO_PADDING }, INT_MIN, INT_MAX, V|D, "bug"},
 {"amv", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AMV }, INT_MIN, INT_MAX, V|D, "bug"},
 #if FF_API_AC_VLC
-{"ac_vlc", "illegal VLC bug (autodetected per FOURCC)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AC_VLC }, INT_MIN, INT_MAX, V|D, "bug"},
+{"ac_vlc", NULL_IF_CONFIG_SMALL("illegal VLC bug (autodetected per FOURCC)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AC_VLC }, INT_MIN, INT_MAX, V|D, "bug"},
 #endif
 {"qpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_QPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"},
-{"std_qpel", "old standard qpel (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_STD_QPEL }, INT_MIN, INT_MAX, V|D, "bug"},
+{"std_qpel", NULL_IF_CONFIG_SMALL("old standard qpel (autodetected per FOURCC/version)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_STD_QPEL }, INT_MIN, INT_MAX, V|D, "bug"},
 {"qpel_chroma2", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_QPEL_CHROMA2 }, INT_MIN, INT_MAX, V|D, "bug"},
-{"direct_blocksize", "direct-qpel-blocksize bug (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_DIRECT_BLOCKSIZE }, INT_MIN, INT_MAX, V|D, "bug"},
-{"edge", "edge padding bug (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_EDGE }, INT_MIN, INT_MAX, V|D, "bug"},
+{"direct_blocksize", NULL_IF_CONFIG_SMALL("direct-qpel-blocksize bug (autodetected per FOURCC/version)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_DIRECT_BLOCKSIZE }, INT_MIN, INT_MAX, V|D, "bug"},
+{"edge", NULL_IF_CONFIG_SMALL("edge padding bug (autodetected per FOURCC/version)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_EDGE }, INT_MIN, INT_MAX, V|D, "bug"},
 {"hpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_HPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"},
 {"dc_clip", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_DC_CLIP }, INT_MIN, INT_MAX, V|D, "bug"},
-{"ms", "work around various bugs in Microsoft's broken decoders", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_MS }, INT_MIN, INT_MAX, V|D, "bug"},
-{"trunc", "truncated frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_TRUNCATED}, INT_MIN, INT_MAX, V|D, "bug"},
+{"ms", NULL_IF_CONFIG_SMALL("work around various bugs in Microsoft's broken decoders"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_MS }, INT_MIN, INT_MAX, V|D, "bug"},
+{"trunc", NULL_IF_CONFIG_SMALL("truncated frames"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_TRUNCATED}, INT_MIN, INT_MAX, V|D, "bug"},
 {"iedge", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_IEDGE }, INT_MIN, INT_MAX, V|D, "bug"},
-{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
-{"very", "strictly conform to a older more strict version of the spec or reference software", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_VERY_STRICT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
-{"strict", "strictly conform to all the things in the spec no matter what the consequences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_STRICT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"strict", NULL_IF_CONFIG_SMALL("how strictly to follow the standards"), OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"very", NULL_IF_CONFIG_SMALL("strictly conform to a older more strict version of the spec or reference software"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_VERY_STRICT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"strict", NULL_IF_CONFIG_SMALL("strictly conform to all the things in the spec no matter what the consequences"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_STRICT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
 {"normal", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_NORMAL }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
-{"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
-{"experimental", "allow non-standardized experimental things", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
-{"b_qoffset", "QP offset between P- and B-frames", OFFSET(b_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
-{"err_detect", "set error detection flags", OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
-{"crccheck", "verify embedded CRCs", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
-{"bitstream", "detect bitstream specification deviations", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
-{"buffer", "detect improper bitstream length", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BUFFER }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
-{"explode", "abort decoding on minor error detection", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_EXPLODE }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
-{"ignore_err", "ignore errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_IGNORE_ERR }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
-{"careful",    "consider things that violate the spec, are fast to check and have not been seen in the wild as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CAREFUL }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
-{"compliant",  "consider all spec non compliancies as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_COMPLIANT }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
-{"aggressive", "consider things that a sane encoder should not do as an error", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_AGGRESSIVE }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"unofficial", NULL_IF_CONFIG_SMALL("allow unofficial extensions"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"experimental", NULL_IF_CONFIG_SMALL("allow non-standardized experimental things"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
+{"b_qoffset", NULL_IF_CONFIG_SMALL("QP offset between P- and B-frames"), OFFSET(b_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
+{"err_detect", NULL_IF_CONFIG_SMALL("set error detection flags"), OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"crccheck", NULL_IF_CONFIG_SMALL("verify embedded CRCs"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"bitstream", NULL_IF_CONFIG_SMALL("detect bitstream specification deviations"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"buffer", NULL_IF_CONFIG_SMALL("detect improper bitstream length"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BUFFER }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"explode", NULL_IF_CONFIG_SMALL("abort decoding on minor error detection"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_EXPLODE }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"ignore_err", NULL_IF_CONFIG_SMALL("ignore errors"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_IGNORE_ERR }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"careful", NULL_IF_CONFIG_SMALL("consider things that violate the spec, are fast to check and have not been seen in the wild as errors"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CAREFUL }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"compliant", NULL_IF_CONFIG_SMALL("consider all spec non compliancies as errors"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_COMPLIANT }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
+{"aggressive", NULL_IF_CONFIG_SMALL("consider things that a sane encoder should not do as an error"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_AGGRESSIVE }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
 {"has_b_frames", NULL, OFFSET(has_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX},
 {"block_align", NULL, OFFSET(block_align), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX},
 #if FF_API_PRIVATE_OPT
-{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"mpeg_quant", NULL_IF_CONFIG_SMALL("use MPEG quantizers instead of H.263"), OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
 #if FF_API_MPV_OPT
-{"qsquish", "deprecated, use encoder private options instead", OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 99, V|E},
-{"rc_qmod_amp",  "deprecated, use encoder private options instead", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
-{"rc_qmod_freq", "deprecated, use encoder private options instead", OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"qsquish", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 99, V|E},
+{"rc_qmod_amp", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
+{"rc_qmod_freq", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
 {"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 #if FF_API_MPV_OPT
-{"rc_eq", "deprecated, use encoder private options instead", OFFSET(rc_eq), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, V|E},
+{"rc_eq", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(rc_eq), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, V|E},
 #endif
-{"maxrate", "maximum bitrate (in bits/s). Used for VBV together with bufsize.", OFFSET(rc_max_rate), AV_OPT_TYPE_INT64, {.i64 = DEFAULT }, 0, INT_MAX, V|A|E},
-{"minrate", "minimum bitrate (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise.",
+{"maxrate", NULL_IF_CONFIG_SMALL("maximum bitrate (in bits/s). Used for VBV together with bufsize."), OFFSET(rc_max_rate), AV_OPT_TYPE_INT64, {.i64 = DEFAULT }, 0, INT_MAX, V|A|E},
+{"minrate", NULL_IF_CONFIG_SMALL("minimum bitrate (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise."),
             OFFSET(rc_min_rate), AV_OPT_TYPE_INT64, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
-{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|V|E},
+{"bufsize", NULL_IF_CONFIG_SMALL("set ratecontrol buffer size (in bits)"), OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|V|E},
 #if FF_API_MPV_OPT
-{"rc_buf_aggressivity", "deprecated, use encoder private options instead", OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, V|E},
+{"rc_buf_aggressivity", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, V|E},
 #endif
-{"i_qfactor", "QP factor between P- and I-frames", OFFSET(i_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = -0.8 }, -FLT_MAX, FLT_MAX, V|E},
-{"i_qoffset", "QP offset between P- and I-frames", OFFSET(i_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, -FLT_MAX, FLT_MAX, V|E},
+{"i_qfactor", NULL_IF_CONFIG_SMALL("QP factor between P- and I-frames"), OFFSET(i_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = -0.8 }, -FLT_MAX, FLT_MAX, V|E},
+{"i_qoffset", NULL_IF_CONFIG_SMALL("QP offset between P- and I-frames"), OFFSET(i_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, -FLT_MAX, FLT_MAX, V|E},
 #if FF_API_MPV_OPT
-{"rc_init_cplx", "deprecated, use encoder private options instead", OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
+{"rc_init_cplx", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
 #endif
-{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
-{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
-{"fastint", "fast integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
-{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
+{"dct", NULL_IF_CONFIG_SMALL("DCT algorithm"), OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
+{"auto", NULL_IF_CONFIG_SMALL("autoselect a good one"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
+{"fastint", NULL_IF_CONFIG_SMALL("fast integer"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
+{"int", NULL_IF_CONFIG_SMALL("accurate integer"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
 {"mmx", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
 {"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
-{"faan", "floating point AAN DCT", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
-{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
-{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
-{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
-{"p_mask", "inter masking", OFFSET(p_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
-{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
-{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
+{"faan", NULL_IF_CONFIG_SMALL("floating point AAN DCT"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
+{"lumi_mask", NULL_IF_CONFIG_SMALL("compresses bright areas stronger than medium ones"), OFFSET(lumi_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"tcplx_mask", NULL_IF_CONFIG_SMALL("temporal complexity masking"), OFFSET(temporal_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"scplx_mask", NULL_IF_CONFIG_SMALL("spatial complexity masking"), OFFSET(spatial_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"p_mask", NULL_IF_CONFIG_SMALL("inter masking"), OFFSET(p_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"dark_mask", NULL_IF_CONFIG_SMALL("compresses dark areas stronger than medium ones"), OFFSET(dark_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
+{"idct", NULL_IF_CONFIG_SMALL("select IDCT implementation"), OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
 {"auto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
 {"int", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
 {"simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
@@ -239,31 +240,31 @@ static const AVOption avcodec_options[] = {
 {"ipp", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"},
 #endif /* FF_API_UNUSED_MEMBERS */
 {"xvid", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"xvidmmx", "deprecated, for compatibility only", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"faani", "floating point AAN IDCT", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
+{"xvidmmx", NULL_IF_CONFIG_SMALL("deprecated, for compatibility only"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
+{"faani", NULL_IF_CONFIG_SMALL("floating point AAN IDCT"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
 {"simpleauto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
 {"slice_count", NULL, OFFSET(slice_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
-{"ec", "set error concealment strategy", OFFSET(error_concealment), AV_OPT_TYPE_FLAGS, {.i64 = 3 }, INT_MIN, INT_MAX, V|D, "ec"},
-{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_GUESS_MVS }, INT_MIN, INT_MAX, V|D, "ec"},
-{"deblock", "use strong deblock filter for damaged MBs", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_DEBLOCK }, INT_MIN, INT_MAX, V|D, "ec"},
-{"favor_inter", "favor predicting from the previous frame", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_FAVOR_INTER }, INT_MIN, INT_MAX, V|D, "ec"},
+{"ec", NULL_IF_CONFIG_SMALL("set error concealment strategy"), OFFSET(error_concealment), AV_OPT_TYPE_FLAGS, {.i64 = 3 }, INT_MIN, INT_MAX, V|D, "ec"},
+{"guess_mvs", NULL_IF_CONFIG_SMALL("iterative motion vector (MV) search (slow)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_GUESS_MVS }, INT_MIN, INT_MAX, V|D, "ec"},
+{"deblock", NULL_IF_CONFIG_SMALL("use strong deblock filter for damaged MBs"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_DEBLOCK }, INT_MIN, INT_MAX, V|D, "ec"},
+{"favor_inter", NULL_IF_CONFIG_SMALL("favor predicting from the previous frame"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_FAVOR_INTER }, INT_MIN, INT_MAX, V|D, "ec"},
 {"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX},
 #if FF_API_PRIVATE_OPT
-{"pred", "prediction method", OFFSET(prediction_method), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "pred"},
+{"pred", NULL_IF_CONFIG_SMALL("prediction method"), OFFSET(prediction_method), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "pred"},
 {"left", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_LEFT }, INT_MIN, INT_MAX, V|E, "pred"},
 {"plane", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_PLANE }, INT_MIN, INT_MAX, V|E, "pred"},
 {"median", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_MEDIAN }, INT_MIN, INT_MAX, V|E, "pred"},
 #endif
-{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E},
-{"sar",    "sample aspect ratio", OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E},
-{"debug", "print specific debug info", OFFSET(debug), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, V|A|S|E|D, "debug"},
-{"pict", "picture info", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_PICT_INFO }, INT_MIN, INT_MAX, V|D, "debug"},
-{"rc", "rate control", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_RC }, INT_MIN, INT_MAX, V|E, "debug"},
+{"aspect", NULL_IF_CONFIG_SMALL("sample aspect ratio"), OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E},
+{"sar", NULL_IF_CONFIG_SMALL("sample aspect ratio"), OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E},
+{"debug", NULL_IF_CONFIG_SMALL("print specific debug info"), OFFSET(debug), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, V|A|S|E|D, "debug"},
+{"pict", NULL_IF_CONFIG_SMALL("picture info"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_PICT_INFO }, INT_MIN, INT_MAX, V|D, "debug"},
+{"rc", NULL_IF_CONFIG_SMALL("rate control"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_RC }, INT_MIN, INT_MAX, V|E, "debug"},
 {"bitstream", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BITSTREAM }, INT_MIN, INT_MAX, V|D, "debug"},
-{"mb_type", "macroblock (MB) type", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
-{"qp", "per-block quantization parameter (QP)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_QP }, INT_MIN, INT_MAX, V|D, "debug"},
+{"mb_type", NULL_IF_CONFIG_SMALL("macroblock (MB) type"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
+{"qp", NULL_IF_CONFIG_SMALL("per-block quantization parameter (QP)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_QP }, INT_MIN, INT_MAX, V|D, "debug"},
 #if FF_API_DEBUG_MV
-{"mv", "motion vector", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MV }, INT_MIN, INT_MAX, V|D, "debug"},
+{"mv", NULL_IF_CONFIG_SMALL("motion vector"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MV }, INT_MIN, INT_MAX, V|D, "debug"},
 #endif
 {"dct_coeff", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_DCT_COEFF }, INT_MIN, INT_MAX, V|D, "debug"},
 {"green_metadata", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_GREEN_MD }, INT_MIN, INT_MAX, V|D, "debug"},
@@ -272,110 +273,110 @@ static const AVOption avcodec_options[] = {
 #if FF_API_UNUSED_MEMBERS
 {"pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_PTS }, INT_MIN, INT_MAX, V|D, "debug"},
 #endif /* FF_API_UNUSED_MEMBERS */
-{"er", "error recognition", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_ER }, INT_MIN, INT_MAX, V|D, "debug"},
-{"mmco", "memory management control operations (H.264)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MMCO }, INT_MIN, INT_MAX, V|D, "debug"},
+{"er", NULL_IF_CONFIG_SMALL("error recognition"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_ER }, INT_MIN, INT_MAX, V|D, "debug"},
+{"mmco", NULL_IF_CONFIG_SMALL("memory management control operations (H.264)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MMCO }, INT_MIN, INT_MAX, V|D, "debug"},
 {"bugs", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BUGS }, INT_MIN, INT_MAX, V|D, "debug"},
 #if FF_API_DEBUG_MV
-{"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_QP }, INT_MIN, INT_MAX, V|D, "debug"},
-{"vis_mb_type", "visualize block types", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
+{"vis_qp", NULL_IF_CONFIG_SMALL("visualize quantization parameter (QP), lower QP are tinted greener"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_QP }, INT_MIN, INT_MAX, V|D, "debug"},
+{"vis_mb_type", NULL_IF_CONFIG_SMALL("visualize block types"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
 #endif
-{"buffers", "picture buffer allocations", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BUFFERS }, INT_MIN, INT_MAX, V|D, "debug"},
-{"thread_ops", "threading operations", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_THREADS }, INT_MIN, INT_MAX, V|A|D, "debug"},
-{"nomc", "skip motion compensation", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_NOMC }, INT_MIN, INT_MAX, V|A|D, "debug"},
+{"buffers", NULL_IF_CONFIG_SMALL("picture buffer allocations"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BUFFERS }, INT_MIN, INT_MAX, V|D, "debug"},
+{"thread_ops", NULL_IF_CONFIG_SMALL("threading operations"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_THREADS }, INT_MIN, INT_MAX, V|A|D, "debug"},
+{"nomc", NULL_IF_CONFIG_SMALL("skip motion compensation"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_NOMC }, INT_MIN, INT_MAX, V|A|D, "debug"},
 #if FF_API_VISMV
-{"vismv", "visualize motion vectors (MVs) (deprecated)", OFFSET(debug_mv), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, V|D, "debug_mv"},
-{"pf", "forward predicted MVs of P-frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_P_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"},
-{"bf", "forward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_B_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"},
-{"bb", "backward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_B_BACK }, INT_MIN, INT_MAX, V|D, "debug_mv"},
-#endif
-{"cmp", "full-pel ME compare function", OFFSET(me_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"subcmp", "sub-pel ME compare function", OFFSET(me_sub_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"ildctcmp", "interlaced DCT compare function", OFFSET(ildct_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
-{"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"vismv", NULL_IF_CONFIG_SMALL("visualize motion vectors (MVs) (deprecated)"), OFFSET(debug_mv), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, V|D, "debug_mv"},
+{"pf", NULL_IF_CONFIG_SMALL("forward predicted MVs of P-frames"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_P_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"},
+{"bf", NULL_IF_CONFIG_SMALL("forward predicted MVs of B-frames"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_B_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"},
+{"bb", NULL_IF_CONFIG_SMALL("backward predicted MVs of B-frames"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_B_BACK }, INT_MIN, INT_MAX, V|D, "debug_mv"},
+#endif
+{"cmp", NULL_IF_CONFIG_SMALL("full-pel ME compare function"), OFFSET(me_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"subcmp", NULL_IF_CONFIG_SMALL("sub-pel ME compare function"), OFFSET(me_sub_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"mbcmp", NULL_IF_CONFIG_SMALL("macroblock compare function"), OFFSET(mb_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"ildctcmp", NULL_IF_CONFIG_SMALL("interlaced DCT compare function"), OFFSET(ildct_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"dia_size", NULL_IF_CONFIG_SMALL("diamond type & size for motion estimation"), OFFSET(dia_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"last_pred", NULL_IF_CONFIG_SMALL("amount of motion predictors from the previous frame"), OFFSET(last_predictor_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #if FF_API_PRIVATE_OPT
-{"preme", "pre motion estimation", OFFSET(pre_me), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
-#endif
-{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"sad", "sum of absolute differences, fast", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"sse", "sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"satd", "sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"dct", "sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"psnr", "sum of squared quantization errors (avoid, low quality)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"bit", "number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"rd", "rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"zero", "0", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"vsad", "sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"vsse", "sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"nsse", "noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"preme", NULL_IF_CONFIG_SMALL("pre motion estimation"), OFFSET(pre_me), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
+{"precmp", NULL_IF_CONFIG_SMALL("pre motion estimation compare function"), OFFSET(me_pre_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"sad", NULL_IF_CONFIG_SMALL("sum of absolute differences, fast"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"sse", NULL_IF_CONFIG_SMALL("sum of squared errors"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"satd", NULL_IF_CONFIG_SMALL("sum of absolute Hadamard transformed differences"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"dct", NULL_IF_CONFIG_SMALL("sum of absolute DCT transformed differences"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"psnr", NULL_IF_CONFIG_SMALL("sum of squared quantization errors (avoid, low quality)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"bit", NULL_IF_CONFIG_SMALL("number of bits needed for the block"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"rd", NULL_IF_CONFIG_SMALL("rate distortion optimal, slow"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"zero", NULL_IF_CONFIG_SMALL("0"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"vsad", NULL_IF_CONFIG_SMALL("sum of absolute vertical differences"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"vsse", NULL_IF_CONFIG_SMALL("sum of squared vertical differences"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"nsse", NULL_IF_CONFIG_SMALL("noise preserving sum of squared differences"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
 #if CONFIG_SNOW_ENCODER
-{"w53", "5/3 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_W53 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"w97", "9/7 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_W97 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"w53", NULL_IF_CONFIG_SMALL("5/3 wavelet, only used in snow"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_W53 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"w97", NULL_IF_CONFIG_SMALL("9/7 wavelet, only used in snow"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_W97 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
 #endif
 {"dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
 {"chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"msad", "sum of absolute differences, median predicted", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"pre_dia_size", "diamond type & size for motion estimation pre-pass", OFFSET(pre_dia_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
-{"subq", "sub-pel motion estimation quality", OFFSET(me_subpel_quality), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
+{"msad", NULL_IF_CONFIG_SMALL("sum of absolute differences, median predicted"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"pre_dia_size", NULL_IF_CONFIG_SMALL("diamond type & size for motion estimation pre-pass"), OFFSET(pre_dia_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"subq", NULL_IF_CONFIG_SMALL("sub-pel motion estimation quality"), OFFSET(me_subpel_quality), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
 #if FF_API_AFD
 {"dtg_active_format", NULL, OFFSET(dtg_active_format), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 #endif
-{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"me_range", NULL_IF_CONFIG_SMALL("limit motion vectors range (1023 for DivX player)"), OFFSET(me_range), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #if FF_API_QUANT_BIAS
-{"ibias", "intra quant bias", OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
-{"pbias", "inter quant bias", OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
+{"ibias", NULL_IF_CONFIG_SMALL("intra quant bias"), OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
+{"pbias", NULL_IF_CONFIG_SMALL("inter quant bias"), OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
 #endif
 {"global_quality", NULL, OFFSET(global_quality), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
 #if FF_API_CODER_TYPE
 {"coder", NULL, OFFSET(coder_type), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "coder"},
-{"vlc", "variable length coder / Huffman coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_VLC }, INT_MIN, INT_MAX, V|E, "coder"},
-{"ac", "arithmetic coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_AC }, INT_MIN, INT_MAX, V|E, "coder"},
-{"raw", "raw (no encoding)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_RAW }, INT_MIN, INT_MAX, V|E, "coder"},
-{"rle", "run-length coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_RLE }, INT_MIN, INT_MAX, V|E, "coder"},
+{"vlc", NULL_IF_CONFIG_SMALL("variable length coder / Huffman coder"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_VLC }, INT_MIN, INT_MAX, V|E, "coder"},
+{"ac", NULL_IF_CONFIG_SMALL("arithmetic coder"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_AC }, INT_MIN, INT_MAX, V|E, "coder"},
+{"raw", NULL_IF_CONFIG_SMALL("raw (no encoding)"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_RAW }, INT_MIN, INT_MAX, V|E, "coder"},
+{"rle", NULL_IF_CONFIG_SMALL("run-length coder"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_RLE }, INT_MIN, INT_MAX, V|E, "coder"},
 #if FF_API_UNUSED_MEMBERS
-{"deflate", "deflate-based coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_DEFLATE }, INT_MIN, INT_MAX, V|E, "coder"},
+{"deflate", NULL_IF_CONFIG_SMALL("deflate-based coder"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_DEFLATE }, INT_MIN, INT_MAX, V|E, "coder"},
 #endif /* FF_API_UNUSED_MEMBERS */
 #endif /* FF_API_CODER_TYPE */
 #if FF_API_PRIVATE_OPT
-{"context", "context model", OFFSET(context_model), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"context", NULL_IF_CONFIG_SMALL("context model"), OFFSET(context_model), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
 {"slice_flags", NULL, OFFSET(slice_flags), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 #if FF_API_XVMC
 {"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 #endif /* FF_API_XVMC */
-{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, 2, V|E, "mbd"},
-{"simple", "use mbcmp", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_SIMPLE }, INT_MIN, INT_MAX, V|E, "mbd"},
-{"bits", "use fewest bits", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_BITS }, INT_MIN, INT_MAX, V|E, "mbd"},
-{"rd", "use best rate distortion", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_RD }, INT_MIN, INT_MAX, V|E, "mbd"},
+{"mbd", NULL_IF_CONFIG_SMALL("macroblock decision algorithm (high quality mode)"), OFFSET(mb_decision), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, 2, V|E, "mbd"},
+{"simple", NULL_IF_CONFIG_SMALL("use mbcmp"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_SIMPLE }, INT_MIN, INT_MAX, V|E, "mbd"},
+{"bits", NULL_IF_CONFIG_SMALL("use fewest bits"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_BITS }, INT_MIN, INT_MAX, V|E, "mbd"},
+{"rd", NULL_IF_CONFIG_SMALL("use best rate distortion"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_RD }, INT_MIN, INT_MAX, V|E, "mbd"},
 #if FF_API_STREAM_CODEC_TAG
 {"stream_codec_tag", NULL, OFFSET(stream_codec_tag), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 #endif
 #if FF_API_PRIVATE_OPT
-{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"sc_threshold", NULL_IF_CONFIG_SMALL("scene change threshold"), OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
 #if FF_API_MPV_OPT
-{"lmin", "deprecated, use encoder private options instead", OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 =  0 }, 0, INT_MAX, V|E},
-{"lmax", "deprecated, use encoder private options instead", OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 =  0 }, 0, INT_MAX, V|E},
+{"lmin", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 =  0 }, 0, INT_MAX, V|E},
+{"lmax", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 =  0 }, 0, INT_MAX, V|E},
 #endif
 #if FF_API_PRIVATE_OPT
-{"nr", "noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"nr", NULL_IF_CONFIG_SMALL("noise reduction"), OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
-{"rc_init_occupancy", "number of bits which should be loaded into the rc buffer before decoding starts", OFFSET(rc_initial_buffer_occupancy), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"rc_init_occupancy", NULL_IF_CONFIG_SMALL("number of bits which should be loaded into the rc buffer before decoding starts"), OFFSET(rc_initial_buffer_occupancy), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 {"flags2", NULL, OFFSET(flags2), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT}, 0, UINT_MAX, V|A|E|D, "flags2"},
 #if FF_API_ERROR_RATE
 {"error", NULL, OFFSET(error_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
-{"threads", "set the number of threads", OFFSET(thread_count), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, INT_MAX, V|A|E|D, "threads"},
-{"auto", "autodetect a suitable number of threads to use", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, INT_MIN, INT_MAX, V|E|D, "threads"},
+{"threads", NULL_IF_CONFIG_SMALL("set the number of threads"), OFFSET(thread_count), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, INT_MAX, V|A|E|D, "threads"},
+{"auto", NULL_IF_CONFIG_SMALL("autodetect a suitable number of threads to use"), 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, INT_MIN, INT_MAX, V|E|D, "threads"},
 #if FF_API_MPV_OPT
-{"me_threshold", "motion estimation threshold", OFFSET(me_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
-{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"me_threshold", NULL_IF_CONFIG_SMALL("motion estimation threshold"), OFFSET(me_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"mb_threshold", NULL_IF_CONFIG_SMALL("macroblock threshold"), OFFSET(mb_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
-{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), AV_OPT_TYPE_INT, {.i64 = 0 }, -8, 16, V|E},
-{"nssew", "nsse weight", OFFSET(nsse_weight), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
-{"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|D},
-{"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|D},
+{"dc", NULL_IF_CONFIG_SMALL("intra_dc_precision"), OFFSET(intra_dc_precision), AV_OPT_TYPE_INT, {.i64 = 0 }, -8, 16, V|E},
+{"nssew", NULL_IF_CONFIG_SMALL("nsse weight"), OFFSET(nsse_weight), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
+{"skip_top", NULL_IF_CONFIG_SMALL("number of macroblock rows at the top which are skipped"), OFFSET(skip_top), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|D},
+{"skip_bottom", NULL_IF_CONFIG_SMALL("number of macroblock rows at the bottom which are skipped"), OFFSET(skip_bottom), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|D},
 {"profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT, {.i64 = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"},
 {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"},
 {"aac_main", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_MAIN }, INT_MIN, INT_MAX, A|E, "profile"},
@@ -400,53 +401,53 @@ static const AVOption avcodec_options[] = {
 {"main10",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_HEVC_MAIN_10 }, INT_MIN, INT_MAX, V|E, "profile"},
 {"level", NULL, OFFSET(level), AV_OPT_TYPE_INT, {.i64 = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
 {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
-{"lowres", "decode at 1= 1/2, 2=1/4, 3=1/8 resolutions", OFFSET(lowres), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, V|A|D},
+{"lowres", NULL_IF_CONFIG_SMALL("decode at 1= 1/2, 2=1/4, 3=1/8 resolutions"), OFFSET(lowres), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, V|A|D},
 #if FF_API_PRIVATE_OPT
-{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
-{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
-{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
-{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
+{"skip_threshold", NULL_IF_CONFIG_SMALL("frame skip threshold"), OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"skip_factor", NULL_IF_CONFIG_SMALL("frame skip factor"), OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"skip_exp", NULL_IF_CONFIG_SMALL("frame skip exponent"), OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"skipcmp", NULL_IF_CONFIG_SMALL("frame skip compare function"), OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
 #endif
 #if FF_API_MPV_OPT
-{"border_mask", "deprecated, use encoder private options instead", OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
+{"border_mask", NULL_IF_CONFIG_SMALL("deprecated, use encoder private options instead"), OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
 #endif
-{"mblmin", "minimum macroblock Lagrange factor (VBR)", OFFSET(mb_lmin), AV_OPT_TYPE_INT, {.i64 = FF_QP2LAMBDA * 2 }, 1, FF_LAMBDA_MAX, V|E},
-{"mblmax", "maximum macroblock Lagrange factor (VBR)", OFFSET(mb_lmax), AV_OPT_TYPE_INT, {.i64 = FF_QP2LAMBDA * 31 }, 1, FF_LAMBDA_MAX, V|E},
+{"mblmin", NULL_IF_CONFIG_SMALL("minimum macroblock Lagrange factor (VBR)"), OFFSET(mb_lmin), AV_OPT_TYPE_INT, {.i64 = FF_QP2LAMBDA * 2 }, 1, FF_LAMBDA_MAX, V|E},
+{"mblmax", NULL_IF_CONFIG_SMALL("maximum macroblock Lagrange factor (VBR)"), OFFSET(mb_lmax), AV_OPT_TYPE_INT, {.i64 = FF_QP2LAMBDA * 31 }, 1, FF_LAMBDA_MAX, V|E},
 #if FF_API_PRIVATE_OPT
-{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, V|E},
-#endif
-{"skip_loop_filter", "skip loop filtering process for the selected frames", OFFSET(skip_loop_filter), AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"skip_idct"       , "skip IDCT/dequantization for the selected frames",    OFFSET(skip_idct),        AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"skip_frame"      , "skip decoding for the selected frames",               OFFSET(skip_frame),       AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"none"            , "discard no frame",                    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONE    }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"default"         , "discard useless frames",              0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"noref"           , "discard all non-reference frames",    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONREF  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"bidir"           , "discard all bidirectional frames",    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_BIDIR   }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"nokey"           , "discard all frames except keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONKEY  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"nointra"         , "discard all frames except I frames",  0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONINTRA}, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"all"             , "discard all frames",                  0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_ALL     }, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, 4, V|E},
+{"mepc", NULL_IF_CONFIG_SMALL("motion estimation bitrate penalty compensation (1.0 = 256)"), OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, V|E},
+#endif
+{"skip_loop_filter", NULL_IF_CONFIG_SMALL("skip loop filtering process for the selected frames"), OFFSET(skip_loop_filter), AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"skip_idct"       , NULL_IF_CONFIG_SMALL("skip IDCT/dequantization for the selected frames"),    OFFSET(skip_idct),        AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"skip_frame"      , NULL_IF_CONFIG_SMALL("skip decoding for the selected frames"),               OFFSET(skip_frame),       AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"none"            , NULL_IF_CONFIG_SMALL("discard no frame"),                    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONE    }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"default"         , NULL_IF_CONFIG_SMALL("discard useless frames"),              0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"noref"           , NULL_IF_CONFIG_SMALL("discard all non-reference frames"),    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONREF  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"bidir"           , NULL_IF_CONFIG_SMALL("discard all bidirectional frames"),    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_BIDIR   }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"nokey"           , NULL_IF_CONFIG_SMALL("discard all frames except keyframes"), 0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONKEY  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"nointra"         , NULL_IF_CONFIG_SMALL("discard all frames except I frames"),  0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONINTRA}, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"all"             , NULL_IF_CONFIG_SMALL("discard all frames"),                  0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_ALL     }, INT_MIN, INT_MAX, V|D, "avdiscard"},
+{"bidir_refine", NULL_IF_CONFIG_SMALL("refine the two motion vectors used in bidirectional macroblocks"), OFFSET(bidir_refine), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, 4, V|E},
 #if FF_API_PRIVATE_OPT
-{"brd_scale", "downscale frames for dynamic B-frame decision", OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, 10, V|E},
+{"brd_scale", NULL_IF_CONFIG_SMALL("downscale frames for dynamic B-frame decision"), OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, 10, V|E},
 #endif
-{"keyint_min", "minimum interval between IDR-frames", OFFSET(keyint_min), AV_OPT_TYPE_INT, {.i64 = 25 }, INT_MIN, INT_MAX, V|E},
-{"refs", "reference frames to consider for motion compensation", OFFSET(refs), AV_OPT_TYPE_INT, {.i64 = 1 }, INT_MIN, INT_MAX, V|E},
+{"keyint_min", NULL_IF_CONFIG_SMALL("minimum interval between IDR-frames"), OFFSET(keyint_min), AV_OPT_TYPE_INT, {.i64 = 25 }, INT_MIN, INT_MAX, V|E},
+{"refs", NULL_IF_CONFIG_SMALL("reference frames to consider for motion compensation"), OFFSET(refs), AV_OPT_TYPE_INT, {.i64 = 1 }, INT_MIN, INT_MAX, V|E},
 #if FF_API_PRIVATE_OPT
-{"chromaoffset", "chroma QP offset from luma", OFFSET(chromaoffset), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+{"chromaoffset", NULL_IF_CONFIG_SMALL("chroma QP offset from luma"), OFFSET(chromaoffset), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 #endif
-{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
+{"trellis", NULL_IF_CONFIG_SMALL("rate-distortion optimal quantization"), OFFSET(trellis), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
 #if FF_API_UNUSED_MEMBERS
-{"sc_factor", "multiplied by qscale for each frame and added to scene_change_score", OFFSET(scenechange_factor), AV_OPT_TYPE_INT, {.i64 = 6 }, 0, INT_MAX, V|E},
+{"sc_factor", NULL_IF_CONFIG_SMALL("multiplied by qscale for each frame and added to scene_change_score"), OFFSET(scenechange_factor), AV_OPT_TYPE_INT, {.i64 = 6 }, 0, INT_MAX, V|E},
 #endif /* FF_API_UNUSED_MEMBERS */
 {"mv0_threshold", NULL, OFFSET(mv0_threshold), AV_OPT_TYPE_INT, {.i64 = 256 }, 0, INT_MAX, V|E},
 #if FF_API_PRIVATE_OPT
-{"b_sensitivity", "adjust sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, V|E},
+{"b_sensitivity", NULL_IF_CONFIG_SMALL("adjust sensitivity of b_frame_strategy 1"), OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, V|E},
 #endif
 {"compression_level", NULL, OFFSET(compression_level), AV_OPT_TYPE_INT, {.i64 = FF_COMPRESSION_DEFAULT }, INT_MIN, INT_MAX, V|A|E},
 #if FF_API_PRIVATE_OPT
 {"min_prediction_order", NULL, OFFSET(min_prediction_order), AV_OPT_TYPE_INT, {.i64 = -1 }, INT_MIN, INT_MAX, A|E},
 {"max_prediction_order", NULL, OFFSET(max_prediction_order), AV_OPT_TYPE_INT, {.i64 = -1 }, INT_MIN, INT_MAX, A|E},
-{"timecode_frame_start", "GOP timecode frame start number, in non-drop-frame format", OFFSET(timecode_frame_start), AV_OPT_TYPE_INT64, {.i64 = -1 }, -1, INT64_MAX, V|E},
+{"timecode_frame_start", NULL_IF_CONFIG_SMALL("GOP timecode frame start number, in non-drop-frame format"), OFFSET(timecode_frame_start), AV_OPT_TYPE_INT64, {.i64 = -1 }, -1, INT64_MAX, V|E},
 #endif
 {"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX},
 {"channel_layout", NULL, OFFSET(channel_layout), AV_OPT_TYPE_UINT64, {.i64 = DEFAULT }, 0, UINT64_MAX, A|E|D, "channel_layout"},
@@ -454,106 +455,106 @@ static const AVOption avcodec_options[] = {
 {"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0.0, FLT_MAX, V|E},
 {"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use),  AV_OPT_TYPE_FLOAT, {.dbl = 3 },     0.0, FLT_MAX, V|E},
 {"ticks_per_frame", NULL, OFFSET(ticks_per_frame), AV_OPT_TYPE_INT, {.i64 = 1 }, 1, INT_MAX, A|V|E|D},
-{"color_primaries", "color primaries", OFFSET(color_primaries), AV_OPT_TYPE_INT, {.i64 = AVCOL_PRI_UNSPECIFIED }, 1, INT_MAX, V|E|D, "color_primaries_type"},
-{"bt709",       "BT.709",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT709 },        INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"unknown",     "Unspecified",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"bt470m",      "BT.470 M",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470M },       INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"bt470bg",     "BT.470 BG",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470BG },      INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"smpte170m",   "SMPTE 170 M",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE170M },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"smpte240m",   "SMPTE 240 M",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE240M },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"film",        "Film",           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_FILM },         INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"bt2020",      "BT.2020",        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT2020 },       INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"smpte428",    "SMPTE 428-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"smpte428_1",  "SMPTE 428-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"smpte431",    "SMPTE 431-2",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE431 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"smpte432",    "SMPTE 422-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE432 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"jedec-p22",   "JEDEC P22",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_JEDEC_P22 },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"unspecified", "Unspecified",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
-{"color_trc", "color transfer characteristics", OFFSET(color_trc), AV_OPT_TYPE_INT, {.i64 = AVCOL_TRC_UNSPECIFIED }, 1, INT_MAX, V|E|D, "color_trc_type"},
-{"bt709",        "BT.709",           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT709 },        INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"unknown",      "Unspecified",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"gamma22",      "BT.470 M",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA22 },      INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"gamma28",      "BT.470 BG",        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA28 },      INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"smpte170m",    "SMPTE 170 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE170M },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"smpte240m",    "SMPTE 240 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE240M },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"linear",       "Linear",           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LINEAR },       INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"log100",       "Log",              0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG },          INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"log316",       "Log square root",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"iec61966-2-4", "IEC 61966-2-4",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"bt1361e",      "BT.1361",          0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG },   INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"iec61966-2-1", "IEC 61966-2-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"bt2020-10",    "BT.2020 - 10 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"bt2020-12",    "BT.2020 - 12 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"smpte2084",    "SMPTE 2084",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE2084 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"smpte428",     "SMPTE 428-1",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"arib-std-b67", "ARIB STD-B67",     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_ARIB_STD_B67 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"unspecified",  "Unspecified",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"log",          "Log",              0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG },          INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"log_sqrt",     "Log square root",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"iec61966_2_4", "IEC 61966-2-4",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"bt1361",       "BT.1361",          0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG },   INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"iec61966_2_1", "IEC 61966-2-1",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"bt2020_10bit", "BT.2020 - 10 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"bt2020_12bit", "BT.2020 - 12 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"smpte428_1",   "SMPTE 428-1",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
-{"colorspace", "color space", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = AVCOL_SPC_UNSPECIFIED }, 0, INT_MAX, V|E|D, "colorspace_type"},
-{"rgb",         "RGB",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_RGB },         INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"bt709",       "BT.709",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT709 },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"unknown",     "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"fcc",         "FCC",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_FCC },         INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"bt470bg",     "BT.470 BG",   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT470BG },     INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"smpte170m",   "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE170M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"smpte240m",   "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE240M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"ycgco",       "YCGCO",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_YCGCO },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"bt2020nc",    "BT.2020 NCL", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_NCL },  INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"bt2020c",     "BT.2020 CL",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_CL },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"smpte2085",   "SMPTE 2085",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE2085 },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"ycocg",       "YCGCO",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_YCGCO },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"bt2020_ncl",  "BT.2020 NCL", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_NCL },  INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"bt2020_cl",   "BT.2020 CL",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_CL },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
-{"color_range", "color range", OFFSET(color_range), AV_OPT_TYPE_INT, {.i64 = AVCOL_RANGE_UNSPECIFIED }, 0, INT_MAX, V|E|D, "color_range_type"},
-{"unknown", "Unspecified",     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
-{"tv", "MPEG (219*2^(n-8))",   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_MPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
-{"pc", "JPEG (2^n-1)",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_JPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
-{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
-{"mpeg", "MPEG (219*2^(n-8))", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_MPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
-{"jpeg", "JPEG (2^n-1)",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_JPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
-{"chroma_sample_location", "chroma sample location", OFFSET(chroma_sample_location), AV_OPT_TYPE_INT, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, 0, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"unknown",     "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"left",        "Left",        0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_LEFT },        INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"center",      "Center",      0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_CENTER },      INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"topleft",     "Top-left",    0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_TOPLEFT },     INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"top",         "Top",         0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_TOP },         INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"bottomleft",  "Bottom-left", 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_BOTTOMLEFT },  INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"bottom",      "Bottom",      0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_BOTTOM },      INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
-{"log_level_offset", "set the log level offset", OFFSET(log_level_offset), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX },
-{"slices", "set the number of slices, used in parallelized encoding", OFFSET(slices), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, V|E},
-{"thread_type", "select multithreading type", OFFSET(thread_type), AV_OPT_TYPE_FLAGS, {.i64 = FF_THREAD_SLICE|FF_THREAD_FRAME }, 0, INT_MAX, V|A|E|D, "thread_type"},
+{"color_primaries", NULL_IF_CONFIG_SMALL("color primaries"), OFFSET(color_primaries), AV_OPT_TYPE_INT, {.i64 = AVCOL_PRI_UNSPECIFIED }, 1, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt709",       NULL_IF_CONFIG_SMALL("BT.709"),         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT709 },        INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"unknown",     NULL_IF_CONFIG_SMALL("Unspecified"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt470m",      NULL_IF_CONFIG_SMALL("BT.470 M"),       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470M },       INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt470bg",     NULL_IF_CONFIG_SMALL("BT.470 BG"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470BG },      INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte170m",   NULL_IF_CONFIG_SMALL("SMPTE 170 M"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE170M },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte240m",   NULL_IF_CONFIG_SMALL("SMPTE 240 M"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE240M },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"film",        NULL_IF_CONFIG_SMALL("Film"),           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_FILM },         INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt2020",      NULL_IF_CONFIG_SMALL("BT.2020"),        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT2020 },       INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte428",    NULL_IF_CONFIG_SMALL("SMPTE 428-1"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte428_1",  NULL_IF_CONFIG_SMALL("SMPTE 428-1"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte431",    NULL_IF_CONFIG_SMALL("SMPTE 431-2"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE431 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte432",    NULL_IF_CONFIG_SMALL("SMPTE 422-1"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE432 },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"jedec-p22",   NULL_IF_CONFIG_SMALL("JEDEC P22"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_JEDEC_P22 },    INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"unspecified", NULL_IF_CONFIG_SMALL("Unspecified"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"color_trc", NULL_IF_CONFIG_SMALL("color transfer characteristics"), OFFSET(color_trc), AV_OPT_TYPE_INT, {.i64 = AVCOL_TRC_UNSPECIFIED }, 1, INT_MAX, V|E|D, "color_trc_type"},
+{"bt709",        NULL_IF_CONFIG_SMALL("BT.709"),           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT709 },        INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"unknown",      NULL_IF_CONFIG_SMALL("Unspecified"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"gamma22",      NULL_IF_CONFIG_SMALL("BT.470 M"),         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA22 },      INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"gamma28",      NULL_IF_CONFIG_SMALL("BT.470 BG"),        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA28 },      INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte170m",    NULL_IF_CONFIG_SMALL("SMPTE 170 M"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE170M },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte240m",    NULL_IF_CONFIG_SMALL("SMPTE 240 M"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE240M },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"linear",       NULL_IF_CONFIG_SMALL("Linear"),           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LINEAR },       INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"log100",       NULL_IF_CONFIG_SMALL("Log"),              0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG },          INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"log316",       NULL_IF_CONFIG_SMALL("Log square root"),  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"iec61966-2-4", NULL_IF_CONFIG_SMALL("IEC 61966-2-4"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt1361e",      NULL_IF_CONFIG_SMALL("BT.1361"),          0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG },   INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"iec61966-2-1", NULL_IF_CONFIG_SMALL("IEC 61966-2-1"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt2020-10",    NULL_IF_CONFIG_SMALL("BT.2020 - 10 bit"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt2020-12",    NULL_IF_CONFIG_SMALL("BT.2020 - 12 bit"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte2084",    NULL_IF_CONFIG_SMALL("SMPTE 2084"),       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE2084 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte428",     NULL_IF_CONFIG_SMALL("SMPTE 428-1"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"arib-std-b67", NULL_IF_CONFIG_SMALL("ARIB STD-B67"),     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_ARIB_STD_B67 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"unspecified",  NULL_IF_CONFIG_SMALL("Unspecified"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"log",          NULL_IF_CONFIG_SMALL("Log"),              0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG },          INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"log_sqrt",     NULL_IF_CONFIG_SMALL("Log square root"),  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"iec61966_2_4", NULL_IF_CONFIG_SMALL("IEC 61966-2-4"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt1361",       NULL_IF_CONFIG_SMALL("BT.1361"),          0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG },   INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"iec61966_2_1", NULL_IF_CONFIG_SMALL("IEC 61966-2-1"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt2020_10bit", NULL_IF_CONFIG_SMALL("BT.2020 - 10 bit"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"bt2020_12bit", NULL_IF_CONFIG_SMALL("BT.2020 - 12 bit"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"smpte428_1",   NULL_IF_CONFIG_SMALL("SMPTE 428-1"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE428 },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
+{"colorspace", NULL_IF_CONFIG_SMALL("color space"), OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = AVCOL_SPC_UNSPECIFIED }, 0, INT_MAX, V|E|D, "colorspace_type"},
+{"rgb",         NULL_IF_CONFIG_SMALL("RGB"),         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_RGB },         INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt709",       NULL_IF_CONFIG_SMALL("BT.709"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT709 },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"unknown",     NULL_IF_CONFIG_SMALL("Unspecified"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"fcc",         NULL_IF_CONFIG_SMALL("FCC"),         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_FCC },         INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt470bg",     NULL_IF_CONFIG_SMALL("BT.470 BG"),   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT470BG },     INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"smpte170m",   NULL_IF_CONFIG_SMALL("SMPTE 170 M"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE170M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"smpte240m",   NULL_IF_CONFIG_SMALL("SMPTE 240 M"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE240M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"ycgco",       NULL_IF_CONFIG_SMALL("YCGCO"),       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_YCGCO },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt2020nc",    NULL_IF_CONFIG_SMALL("BT.2020 NCL"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_NCL },  INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt2020c",     NULL_IF_CONFIG_SMALL("BT.2020 CL"),  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_CL },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"smpte2085",   NULL_IF_CONFIG_SMALL("SMPTE 2085"),  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE2085 },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"unspecified", NULL_IF_CONFIG_SMALL("Unspecified"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"ycocg",       NULL_IF_CONFIG_SMALL("YCGCO"),       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_YCGCO },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt2020_ncl",  NULL_IF_CONFIG_SMALL("BT.2020 NCL"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_NCL },  INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"bt2020_cl",   NULL_IF_CONFIG_SMALL("BT.2020 CL"),  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_CL },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
+{"color_range", NULL_IF_CONFIG_SMALL("color range"), OFFSET(color_range), AV_OPT_TYPE_INT, {.i64 = AVCOL_RANGE_UNSPECIFIED }, 0, INT_MAX, V|E|D, "color_range_type"},
+{"unknown", NULL_IF_CONFIG_SMALL("Unspecified"),     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"tv", NULL_IF_CONFIG_SMALL("MPEG (219*2^(n-8))"),   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_MPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"pc", NULL_IF_CONFIG_SMALL("JPEG (2^n-1)"),         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_JPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"unspecified", NULL_IF_CONFIG_SMALL("Unspecified"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"mpeg", NULL_IF_CONFIG_SMALL("MPEG (219*2^(n-8))"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_MPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"jpeg", NULL_IF_CONFIG_SMALL("JPEG (2^n-1)"),       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_JPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
+{"chroma_sample_location", NULL_IF_CONFIG_SMALL("chroma sample location"), OFFSET(chroma_sample_location), AV_OPT_TYPE_INT, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, 0, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"unknown",     NULL_IF_CONFIG_SMALL("Unspecified"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"left",        NULL_IF_CONFIG_SMALL("Left"),        0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_LEFT },        INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"center",      NULL_IF_CONFIG_SMALL("Center"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_CENTER },      INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"topleft",     NULL_IF_CONFIG_SMALL("Top-left"),    0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_TOPLEFT },     INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"top",         NULL_IF_CONFIG_SMALL("Top"),         0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_TOP },         INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"bottomleft",  NULL_IF_CONFIG_SMALL("Bottom-left"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_BOTTOMLEFT },  INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"bottom",      NULL_IF_CONFIG_SMALL("Bottom"),      0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_BOTTOM },      INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"unspecified", NULL_IF_CONFIG_SMALL("Unspecified"), 0, AV_OPT_TYPE_CONST, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "chroma_sample_location_type"},
+{"log_level_offset", NULL_IF_CONFIG_SMALL("set the log level offset"), OFFSET(log_level_offset), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX },
+{"slices", NULL_IF_CONFIG_SMALL("set the number of slices, used in parallelized encoding"), OFFSET(slices), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, V|E},
+{"thread_type", NULL_IF_CONFIG_SMALL("select multithreading type"), OFFSET(thread_type), AV_OPT_TYPE_FLAGS, {.i64 = FF_THREAD_SLICE|FF_THREAD_FRAME }, 0, INT_MAX, V|A|E|D, "thread_type"},
 {"slice", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_THREAD_SLICE }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
 {"frame", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_THREAD_FRAME }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
-{"audio_service_type", "audio service type", OFFSET(audio_service_type), AV_OPT_TYPE_INT, {.i64 = AV_AUDIO_SERVICE_TYPE_MAIN }, 0, AV_AUDIO_SERVICE_TYPE_NB-1, A|E, "audio_service_type"},
-{"ma", "Main Audio Service", 0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_MAIN },              INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"ef", "Effects",            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EFFECTS },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"vi", "Visually Impaired",  0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"hi", "Hearing Impaired",   0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED },  INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"di", "Dialogue",           0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_DIALOGUE },          INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"co", "Commentary",         0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_COMMENTARY },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"em", "Emergency",          0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EMERGENCY },         INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"vo", "Voice Over",         0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_VOICE_OVER },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"ka", "Karaoke",            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_KARAOKE },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
-{"request_sample_fmt", "sample format audio decoders should prefer", OFFSET(request_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64=AV_SAMPLE_FMT_NONE}, -1, INT_MAX, A|D, "request_sample_fmt"},
+{"audio_service_type", NULL_IF_CONFIG_SMALL("audio service type"), OFFSET(audio_service_type), AV_OPT_TYPE_INT, {.i64 = AV_AUDIO_SERVICE_TYPE_MAIN }, 0, AV_AUDIO_SERVICE_TYPE_NB-1, A|E, "audio_service_type"},
+{"ma", NULL_IF_CONFIG_SMALL("Main Audio Service"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_MAIN },              INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"ef", NULL_IF_CONFIG_SMALL("Effects"),            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EFFECTS },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"vi", NULL_IF_CONFIG_SMALL("Visually Impaired"),  0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"hi", NULL_IF_CONFIG_SMALL("Hearing Impaired"),   0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED },  INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"di", NULL_IF_CONFIG_SMALL("Dialogue"),           0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_DIALOGUE },          INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"co", NULL_IF_CONFIG_SMALL("Commentary"),         0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_COMMENTARY },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"em", NULL_IF_CONFIG_SMALL("Emergency"),          0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EMERGENCY },         INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"vo", NULL_IF_CONFIG_SMALL("Voice Over"),         0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_VOICE_OVER },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"ka", NULL_IF_CONFIG_SMALL("Karaoke"),            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_KARAOKE },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
+{"request_sample_fmt", NULL_IF_CONFIG_SMALL("sample format audio decoders should prefer"), OFFSET(request_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64=AV_SAMPLE_FMT_NONE}, -1, INT_MAX, A|D, "request_sample_fmt"},
 {"pkt_timebase", NULL, OFFSET(pkt_timebase), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
-{"sub_charenc", "set input text subtitles character encoding", OFFSET(sub_charenc), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, S|D},
-{"sub_charenc_mode", "set input text subtitles character encoding mode", OFFSET(sub_charenc_mode), AV_OPT_TYPE_FLAGS, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC}, -1, INT_MAX, S|D, "sub_charenc_mode"},
+{"sub_charenc", NULL_IF_CONFIG_SMALL("set input text subtitles character encoding"), OFFSET(sub_charenc), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, S|D},
+{"sub_charenc_mode", NULL_IF_CONFIG_SMALL("set input text subtitles character encoding mode"), OFFSET(sub_charenc_mode), AV_OPT_TYPE_FLAGS, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC}, -1, INT_MAX, S|D, "sub_charenc_mode"},
 {"do_nothing",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_DO_NOTHING},  INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
 {"auto",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC},   INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
 {"pre_decoder", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_PRE_DECODER}, INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
 #if FF_API_ASS_TIMING
-{"sub_text_format", "set decoded text subtitle format", OFFSET(sub_text_format), AV_OPT_TYPE_INT, {.i64 = FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS}, 0, 1, S|D, "sub_text_format"},
+{"sub_text_format", NULL_IF_CONFIG_SMALL("set decoded text subtitle format"), OFFSET(sub_text_format), AV_OPT_TYPE_INT, {.i64 = FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS}, 0, 1, S|D, "sub_text_format"},
 #else
-{"sub_text_format", "set decoded text subtitle format", OFFSET(sub_text_format), AV_OPT_TYPE_INT, {.i64 = FF_SUB_TEXT_FMT_ASS}, 0, 1, S|D, "sub_text_format"},
+{"sub_text_format", NULL_IF_CONFIG_SMALL("set decoded text subtitle format"), OFFSET(sub_text_format), AV_OPT_TYPE_INT, {.i64 = FF_SUB_TEXT_FMT_ASS}, 0, 1, S|D, "sub_text_format"},
 #endif
 {"ass",              NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_TEXT_FMT_ASS},              INT_MIN, INT_MAX, S|D, "sub_text_format"},
 #if FF_API_ASS_TIMING
@@ -564,18 +565,18 @@ static const AVOption avcodec_options[] = {
 {"side_data_only_packets", NULL, OFFSET(side_data_only_packets), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, A|V|E },
 #endif
 {"apply_cropping", NULL, OFFSET(apply_cropping), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, V | D },
-{"skip_alpha", "Skip processing alpha", OFFSET(skip_alpha), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, V|D },
-{"field_order", "Field order", OFFSET(field_order), AV_OPT_TYPE_INT, {.i64 = AV_FIELD_UNKNOWN }, 0, 5, V|D|E, "field_order" },
+{"skip_alpha", NULL_IF_CONFIG_SMALL("Skip processing alpha"), OFFSET(skip_alpha), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, V|D },
+{"field_order", NULL_IF_CONFIG_SMALL("Field order"), OFFSET(field_order), AV_OPT_TYPE_INT, {.i64 = AV_FIELD_UNKNOWN }, 0, 5, V|D|E, "field_order" },
 {"progressive", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_PROGRESSIVE }, 0, 0, V|D|E, "field_order" },
 {"tt", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_TT }, 0, 0, V|D|E, "field_order" },
 {"bb", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_BB }, 0, 0, V|D|E, "field_order" },
 {"tb", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_TB }, 0, 0, V|D|E, "field_order" },
 {"bt", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_BT }, 0, 0, V|D|E, "field_order" },
-{"dump_separator", "set information dump field separator", OFFSET(dump_separator), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, A|V|S|D|E},
-{"codec_whitelist", "List of decoders that are allowed to be used", OFFSET(codec_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, A|V|S|D },
-{"pixel_format", "set pixel format", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_NONE}, -1, INT_MAX, 0 },
-{"video_size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str=NULL}, 0, INT_MAX, 0 },
-{"max_pixels", "Maximum number of pixels", OFFSET(max_pixels), AV_OPT_TYPE_INT64, {.i64 = INT_MAX }, 0, INT_MAX, A|V|S|D|E },
+{"dump_separator", NULL_IF_CONFIG_SMALL("set information dump field separator"), OFFSET(dump_separator), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, A|V|S|D|E},
+{"codec_whitelist", NULL_IF_CONFIG_SMALL("List of decoders that are allowed to be used"), OFFSET(codec_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, A|V|S|D },
+{"pixel_format", NULL_IF_CONFIG_SMALL("set pixel format"), OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_NONE}, -1, INT_MAX, 0 },
+{"video_size", NULL_IF_CONFIG_SMALL("set video size"), OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str=NULL}, 0, INT_MAX, 0 },
+{"max_pixels", NULL_IF_CONFIG_SMALL("Maximum number of pixels"), OFFSET(max_pixels), AV_OPT_TYPE_INT64, {.i64 = INT_MAX }, 0, INT_MAX, A|V|S|D|E },
 {NULL},
 };
 
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 9816a1dfac..9742eca81d 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -87,7 +87,7 @@ typedef struct AVIContext {
 
 
 static const AVOption options[] = {
-    { "use_odml", "use odml index", offsetof(AVIContext, use_odml), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM},
+    { "use_odml", NULL_IF_CONFIG_SMALL("use odml index"), offsetof(AVIContext, use_odml), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM},
     { NULL },
 };
 
diff --git a/libavformat/avio.c b/libavformat/avio.c
index 64248e098b..971130afb5 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -54,9 +54,9 @@ static void *urlcontext_child_next(void *obj, void *prev)
 #define E AV_OPT_FLAG_ENCODING_PARAM
 #define D AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
-    {"protocol_whitelist", "List of protocols that are allowed to be used", OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
-    {"protocol_blacklist", "List of protocols that are not allowed to be used", OFFSET(protocol_blacklist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
-    {"rw_timeout", "Timeout for IO operations (in microseconds)", offsetof(URLContext, rw_timeout), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_DECODING_PARAM },
+    {"protocol_whitelist", NULL_IF_CONFIG_SMALL("List of protocols that are allowed to be used"), OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
+    {"protocol_blacklist", NULL_IF_CONFIG_SMALL("List of protocols that are not allowed to be used"), OFFSET(protocol_blacklist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
+    {"rw_timeout", NULL_IF_CONFIG_SMALL("Timeout for IO operations (in microseconds)"), offsetof(URLContext, rw_timeout), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_DECODING_PARAM },
     { NULL }
 };
 
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index ec21fc7d38..2202af4b08 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -62,7 +62,7 @@ static const AVClass *ff_avio_child_class_next(const AVClass *prev)
 #define E AV_OPT_FLAG_ENCODING_PARAM
 #define D AV_OPT_FLAG_DECODING_PARAM
 static const AVOption ff_avio_options[] = {
-    {"protocol_whitelist", "List of protocols that are allowed to be used", OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
+    {"protocol_whitelist", NULL_IF_CONFIG_SMALL("List of protocols that are allowed to be used"), OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
     { NULL },
 };
 
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 94a56ebfa7..591ae03cdc 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -3969,8 +3969,8 @@ static int webm_dash_manifest_read_packet(AVFormatContext *s, AVPacket *pkt)
 
 #define OFFSET(x) offsetof(MatroskaDemuxContext, x)
 static const AVOption options[] = {
-    { "live", "flag indicating that the input is a live file that only has the headers.", OFFSET(is_live), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
-    { "bandwidth", "bandwidth of this stream to be specified in the DASH manifest.", OFFSET(bandwidth), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "live", NULL_IF_CONFIG_SMALL("flag indicating that the input is a live file that only has the headers."), OFFSET(is_live), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
+    { "bandwidth", NULL_IF_CONFIG_SMALL("bandwidth of this stream to be specified in the DASH manifest."), OFFSET(bandwidth), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
     { NULL },
 };
 
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 876f48d912..c189e2d8fa 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -6745,44 +6745,44 @@ static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
 static const AVOption mov_options[] = {
     {"use_absolute_path",
-        "allow using absolute path when opening alias, this is a possible security issue",
+        NULL_IF_CONFIG_SMALL("allow using absolute path when opening alias, this is a possible security issue"),
         OFFSET(use_absolute_path), AV_OPT_TYPE_BOOL, {.i64 = 0},
         0, 1, FLAGS},
     {"seek_streams_individually",
-        "Seek each stream individually to the to the closest point",
+        NULL_IF_CONFIG_SMALL("Seek each stream individually to the to the closest point"),
         OFFSET(seek_individually), AV_OPT_TYPE_BOOL, { .i64 = 1 },
         0, 1, FLAGS},
-    {"ignore_editlist", "Ignore the edit list atom.", OFFSET(ignore_editlist), AV_OPT_TYPE_BOOL, {.i64 = 0},
+    {"ignore_editlist", NULL_IF_CONFIG_SMALL("Ignore the edit list atom."), OFFSET(ignore_editlist), AV_OPT_TYPE_BOOL, {.i64 = 0},
         0, 1, FLAGS},
     {"advanced_editlist",
-        "Modify the AVIndex according to the editlists. Use this option to decode in the order specified by the edits.",
+        NULL_IF_CONFIG_SMALL("Modify the AVIndex according to the editlists. Use this option to decode in the order specified by the edits."),
         OFFSET(advanced_editlist), AV_OPT_TYPE_BOOL, {.i64 = 1},
         0, 1, FLAGS},
-    {"ignore_chapters", "", OFFSET(ignore_chapters), AV_OPT_TYPE_BOOL, {.i64 = 0},
+    {"ignore_chapters", NULL_IF_CONFIG_SMALL(""), OFFSET(ignore_chapters), AV_OPT_TYPE_BOOL, {.i64 = 0},
         0, 1, FLAGS},
     {"use_mfra_for",
-        "use mfra for fragment timestamps",
+        NULL_IF_CONFIG_SMALL("use mfra for fragment timestamps"),
         OFFSET(use_mfra_for), AV_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
         -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
         "use_mfra_for"},
-    {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
+    {"auto", NULL_IF_CONFIG_SMALL("auto"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
         FLAGS, "use_mfra_for" },
-    {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
+    {"dts", NULL_IF_CONFIG_SMALL("dts"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
         FLAGS, "use_mfra_for" },
-    {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
+    {"pts", NULL_IF_CONFIG_SMALL("pts"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
         FLAGS, "use_mfra_for" },
-    { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
+    { "export_all", NULL_IF_CONFIG_SMALL("Export unrecognized metadata entries"), OFFSET(export_all),
         AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
-    { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
+    { "export_xmp", NULL_IF_CONFIG_SMALL("Export full XMP metadata"), OFFSET(export_xmp),
         AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
-    { "activation_bytes", "Secret bytes for Audible AAX files", OFFSET(activation_bytes),
+    { "activation_bytes", NULL_IF_CONFIG_SMALL("Secret bytes for Audible AAX files"), OFFSET(activation_bytes),
         AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
     { "audible_fixed_key", // extracted from libAAX_SDK.so and AAXSDKWin.dll files!
-        "Fixed key used for handling Audible AAX files", OFFSET(audible_fixed_key),
+        NULL_IF_CONFIG_SMALL("Fixed key used for handling Audible AAX files"), OFFSET(audible_fixed_key),
         AV_OPT_TYPE_BINARY, {.str="77214d4b196a87cd520045fd20a51d67"},
         .flags = AV_OPT_FLAG_DECODING_PARAM },
-    { "decryption_key", "The media decryption key (hex)", OFFSET(decryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
-    { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs), AV_OPT_TYPE_BOOL,
+    { "decryption_key", NULL_IF_CONFIG_SMALL("The media decryption key (hex)"), OFFSET(decryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
+    { "enable_drefs", NULL_IF_CONFIG_SMALL("Enable external track support."), OFFSET(enable_drefs), AV_OPT_TYPE_BOOL,
         {.i64 = 0}, 0, 1, FLAGS },
 
     { NULL },
diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c
index 0924a57843..68e6abb4ca 100644
--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -578,7 +578,7 @@ static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
 }
 
 static const AVOption options[] = {
-    { "usetoc", "use table of contents", offsetof(MP3DecContext, usetoc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM},
+    { "usetoc", NULL_IF_CONFIG_SMALL("use table of contents"), offsetof(MP3DecContext, usetoc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM},
     { NULL },
 };
 
diff --git a/libavformat/options_table.h b/libavformat/options_table.h
index 118086df66..48090344ff 100644
--- a/libavformat/options_table.h
+++ b/libavformat/options_table.h
@@ -24,6 +24,7 @@
 #include <limits.h>
 
 #include "libavutil/opt.h"
+#include "libavutil/internal.h"
 #include "avformat.h"
 #include "internal.h"
 
@@ -35,79 +36,79 @@
 
 static const AVOption avformat_options[] = {
 {"avioflags", NULL, OFFSET(avio_flags), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, INT_MIN, INT_MAX, D|E, "avioflags"},
-{"direct", "reduce buffering", 0, AV_OPT_TYPE_CONST, {.i64 = AVIO_FLAG_DIRECT }, INT_MIN, INT_MAX, D|E, "avioflags"},
-{"probesize", "set probing size", OFFSET(probesize), AV_OPT_TYPE_INT64, {.i64 = 5000000 }, 32, INT64_MAX, D},
-{"formatprobesize", "number of bytes to probe file format", OFFSET(format_probesize), AV_OPT_TYPE_INT, {.i64 = PROBE_BUF_MAX}, 0, INT_MAX-1, D},
-{"packetsize", "set packet size", OFFSET(packet_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, E},
+{"direct", NULL_IF_CONFIG_SMALL("reduce buffering"), 0, AV_OPT_TYPE_CONST, {.i64 = AVIO_FLAG_DIRECT }, INT_MIN, INT_MAX, D|E, "avioflags"},
+{"probesize", NULL_IF_CONFIG_SMALL("set probing size"), OFFSET(probesize), AV_OPT_TYPE_INT64, {.i64 = 5000000 }, 32, INT64_MAX, D},
+{"formatprobesize", NULL_IF_CONFIG_SMALL("number of bytes to probe file format"), OFFSET(format_probesize), AV_OPT_TYPE_INT, {.i64 = PROBE_BUF_MAX}, 0, INT_MAX-1, D},
+{"packetsize", NULL_IF_CONFIG_SMALL("set packet size"), OFFSET(packet_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, E},
 {"fflags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = AVFMT_FLAG_AUTO_BSF }, INT_MIN, INT_MAX, D|E, "fflags"},
-{"flush_packets", "reduce the latency by flushing out packets immediately", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_FLUSH_PACKETS }, INT_MIN, INT_MAX, E, "fflags"},
-{"ignidx", "ignore index", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_IGNIDX }, INT_MIN, INT_MAX, D, "fflags"},
-{"genpts", "generate pts", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_GENPTS }, INT_MIN, INT_MAX, D, "fflags"},
-{"nofillin", "do not fill in missing values that can be exactly calculated", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOFILLIN }, INT_MIN, INT_MAX, D, "fflags"},
-{"noparse", "disable AVParsers, this needs nofillin too", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOPARSE }, INT_MIN, INT_MAX, D, "fflags"},
-{"igndts", "ignore dts", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_IGNDTS }, INT_MIN, INT_MAX, D, "fflags"},
-{"discardcorrupt", "discard corrupted frames", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_DISCARD_CORRUPT }, INT_MIN, INT_MAX, D, "fflags"},
-{"sortdts", "try to interleave outputted packets by dts", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_SORT_DTS }, INT_MIN, INT_MAX, D, "fflags"},
+{"flush_packets", NULL_IF_CONFIG_SMALL("reduce the latency by flushing out packets immediately"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_FLUSH_PACKETS }, INT_MIN, INT_MAX, E, "fflags"},
+{"ignidx", NULL_IF_CONFIG_SMALL("ignore index"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_IGNIDX }, INT_MIN, INT_MAX, D, "fflags"},
+{"genpts", NULL_IF_CONFIG_SMALL("generate pts"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_GENPTS }, INT_MIN, INT_MAX, D, "fflags"},
+{"nofillin", NULL_IF_CONFIG_SMALL("do not fill in missing values that can be exactly calculated"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOFILLIN }, INT_MIN, INT_MAX, D, "fflags"},
+{"noparse", NULL_IF_CONFIG_SMALL("disable AVParsers, this needs nofillin too"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOPARSE }, INT_MIN, INT_MAX, D, "fflags"},
+{"igndts", NULL_IF_CONFIG_SMALL("ignore dts"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_IGNDTS }, INT_MIN, INT_MAX, D, "fflags"},
+{"discardcorrupt", NULL_IF_CONFIG_SMALL("discard corrupted frames"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_DISCARD_CORRUPT }, INT_MIN, INT_MAX, D, "fflags"},
+{"sortdts", NULL_IF_CONFIG_SMALL("try to interleave outputted packets by dts"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_SORT_DTS }, INT_MIN, INT_MAX, D, "fflags"},
 #if FF_API_LAVF_KEEPSIDE_FLAG
-{"keepside", "don't merge side data", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_KEEP_SIDE_DATA }, INT_MIN, INT_MAX, D, "fflags"},
+{"keepside", NULL_IF_CONFIG_SMALL("don't merge side data"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_KEEP_SIDE_DATA }, INT_MIN, INT_MAX, D, "fflags"},
 #endif
-{"fastseek", "fast but inaccurate seeks", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_FAST_SEEK }, INT_MIN, INT_MAX, D, "fflags"},
-{"latm", "enable RTP MP4A-LATM payload", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_MP4A_LATM }, INT_MIN, INT_MAX, E, "fflags"},
-{"nobuffer", "reduce the latency introduced by optional buffering", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOBUFFER }, 0, INT_MAX, D, "fflags"},
-{"seek2any", "allow seeking to non-keyframes on demuxer level when supported", OFFSET(seek2any), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, D},
-{"bitexact", "do not write random/volatile data", 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_BITEXACT }, 0, 0, E, "fflags" },
-{"shortest", "stop muxing with the shortest stream", 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_SHORTEST }, 0, 0, E, "fflags" },
-{"autobsf", "add needed bsfs automatically (delays header until each stream's first packet is written)", 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_AUTO_BSF }, 0, 0, E, "fflags" },
-{"analyzeduration", "specify how many microseconds are analyzed to probe the input", OFFSET(max_analyze_duration), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, D},
-{"cryptokey", "decryption key", OFFSET(key), AV_OPT_TYPE_BINARY, {.dbl = 0}, 0, 0, D},
-{"indexmem", "max memory used for timestamp index (per stream)", OFFSET(max_index_size), AV_OPT_TYPE_INT, {.i64 = 1<<20 }, 0, INT_MAX, D},
-{"rtbufsize", "max memory used for buffering real-time frames", OFFSET(max_picture_buffer), AV_OPT_TYPE_INT, {.i64 = 3041280 }, 0, INT_MAX, D}, /* defaults to 1s of 15fps 352x288 YUYV422 video */
-{"fdebug", "print specific debug info", OFFSET(debug), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, E|D, "fdebug"},
+{"fastseek", NULL_IF_CONFIG_SMALL("fast but inaccurate seeks"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_FAST_SEEK }, INT_MIN, INT_MAX, D, "fflags"},
+{"latm", NULL_IF_CONFIG_SMALL("enable RTP MP4A-LATM payload"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_MP4A_LATM }, INT_MIN, INT_MAX, E, "fflags"},
+{"nobuffer", NULL_IF_CONFIG_SMALL("reduce the latency introduced by optional buffering"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOBUFFER }, 0, INT_MAX, D, "fflags"},
+{"seek2any", NULL_IF_CONFIG_SMALL("allow seeking to non-keyframes on demuxer level when supported"), OFFSET(seek2any), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, D},
+{"bitexact", NULL_IF_CONFIG_SMALL("do not write random/volatile data"), 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_BITEXACT }, 0, 0, E, "fflags" },
+{"shortest", NULL_IF_CONFIG_SMALL("stop muxing with the shortest stream"), 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_SHORTEST }, 0, 0, E, "fflags" },
+{"autobsf", NULL_IF_CONFIG_SMALL("add needed bsfs automatically (delays header until each stream's first packet is written)"), 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_AUTO_BSF }, 0, 0, E, "fflags" },
+{"analyzeduration", NULL_IF_CONFIG_SMALL("specify how many microseconds are analyzed to probe the input"), OFFSET(max_analyze_duration), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, D},
+{"cryptokey", NULL_IF_CONFIG_SMALL("decryption key"), OFFSET(key), AV_OPT_TYPE_BINARY, {.dbl = 0}, 0, 0, D},
+{"indexmem", NULL_IF_CONFIG_SMALL("max memory used for timestamp index (per stream)"), OFFSET(max_index_size), AV_OPT_TYPE_INT, {.i64 = 1<<20 }, 0, INT_MAX, D},
+{"rtbufsize", NULL_IF_CONFIG_SMALL("max memory used for buffering real-time frames"), OFFSET(max_picture_buffer), AV_OPT_TYPE_INT, {.i64 = 3041280 }, 0, INT_MAX, D}, /* defaults to 1s of 15fps 352x288 YUYV422 video */
+{"fdebug", NULL_IF_CONFIG_SMALL("print specific debug info"), OFFSET(debug), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, E|D, "fdebug"},
 {"ts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_FDEBUG_TS }, INT_MIN, INT_MAX, E|D, "fdebug"},
-{"max_delay", "maximum muxing or demuxing delay in microseconds", OFFSET(max_delay), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, INT_MAX, E|D},
-{"start_time_realtime", "wall-clock time when stream begins (PTS==0)", OFFSET(start_time_realtime), AV_OPT_TYPE_INT64, {.i64 = AV_NOPTS_VALUE}, INT64_MIN, INT64_MAX, E},
-{"fpsprobesize", "number of frames used to probe fps", OFFSET(fps_probe_size), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX-1, D},
-{"audio_preload", "microseconds by which audio packets should be interleaved earlier", OFFSET(audio_preload), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX-1, E},
-{"chunk_duration", "microseconds for each chunk", OFFSET(max_chunk_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX-1, E},
-{"chunk_size", "size in bytes for each chunk", OFFSET(max_chunk_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX-1, E},
+{"max_delay", NULL_IF_CONFIG_SMALL("maximum muxing or demuxing delay in microseconds"), OFFSET(max_delay), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, INT_MAX, E|D},
+{"start_time_realtime", NULL_IF_CONFIG_SMALL("wall-clock time when stream begins (PTS==0)"), OFFSET(start_time_realtime), AV_OPT_TYPE_INT64, {.i64 = AV_NOPTS_VALUE}, INT64_MIN, INT64_MAX, E},
+{"fpsprobesize", NULL_IF_CONFIG_SMALL("number of frames used to probe fps"), OFFSET(fps_probe_size), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX-1, D},
+{"audio_preload", NULL_IF_CONFIG_SMALL("microseconds by which audio packets should be interleaved earlier"), OFFSET(audio_preload), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX-1, E},
+{"chunk_duration", NULL_IF_CONFIG_SMALL("microseconds for each chunk"), OFFSET(max_chunk_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX-1, E},
+{"chunk_size", NULL_IF_CONFIG_SMALL("size in bytes for each chunk"), OFFSET(max_chunk_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX-1, E},
 /* this is a crutch for avconv, since it cannot deal with identically named options in different contexts.
  * to be removed when avconv is fixed */
-{"f_err_detect", "set error detection flags (deprecated; use err_detect, save via avconv)", OFFSET(error_recognition), AV_OPT_TYPE_FLAGS, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, D, "err_detect"},
-{"err_detect", "set error detection flags", OFFSET(error_recognition), AV_OPT_TYPE_FLAGS, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, D, "err_detect"},
-{"crccheck", "verify embedded CRCs", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, D, "err_detect"},
-{"bitstream", "detect bitstream specification deviations", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, D, "err_detect"},
-{"buffer", "detect improper bitstream length", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BUFFER }, INT_MIN, INT_MAX, D, "err_detect"},
-{"explode", "abort decoding on minor error detection", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_EXPLODE }, INT_MIN, INT_MAX, D, "err_detect"},
-{"ignore_err", "ignore errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_IGNORE_ERR }, INT_MIN, INT_MAX, D, "err_detect"},
-{"careful",    "consider things that violate the spec, are fast to check and have not been seen in the wild as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CAREFUL }, INT_MIN, INT_MAX, D, "err_detect"},
-{"compliant",  "consider all spec non compliancies as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_COMPLIANT }, INT_MIN, INT_MAX, D, "err_detect"},
-{"aggressive", "consider things that a sane encoder shouldn't do as an error", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_AGGRESSIVE }, INT_MIN, INT_MAX, D, "err_detect"},
-{"use_wallclock_as_timestamps", "use wallclock as timestamps", OFFSET(use_wallclock_as_timestamps), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, D},
-{"skip_initial_bytes", "set number of bytes to skip before reading header and frames", OFFSET(skip_initial_bytes), AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX-1, D},
-{"correct_ts_overflow", "correct single timestamp overflows", OFFSET(correct_ts_overflow), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, D},
-{"flush_packets", "enable flushing of the I/O context after each packet", OFFSET(flush_packets), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, E},
-{"metadata_header_padding", "set number of bytes to be written as padding in a metadata header", OFFSET(metadata_header_padding), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, E},
-{"output_ts_offset", "set output timestamp offset", OFFSET(output_ts_offset), AV_OPT_TYPE_DURATION, {.i64 = 0}, -INT64_MAX, INT64_MAX, E},
-{"max_interleave_delta", "maximum buffering duration for interleaving", OFFSET(max_interleave_delta), AV_OPT_TYPE_INT64, { .i64 = 10000000 }, 0, INT64_MAX, E },
-{"f_strict", "how strictly to follow the standards (deprecated; use strict, save via avconv)", OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, D|E, "strict"},
-{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, D|E, "strict"},
-{"very", "strictly conform to a older more strict version of the spec or reference software", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_VERY_STRICT }, INT_MIN, INT_MAX, D|E, "strict"},
-{"strict", "strictly conform to all the things in the spec no matter what the consequences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_STRICT }, INT_MIN, INT_MAX, D|E, "strict"},
+{"f_err_detect", NULL_IF_CONFIG_SMALL("set error detection flags (deprecated; use err_detect, save via avconv)"), OFFSET(error_recognition), AV_OPT_TYPE_FLAGS, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, D, "err_detect"},
+{"err_detect", NULL_IF_CONFIG_SMALL("set error detection flags"), OFFSET(error_recognition), AV_OPT_TYPE_FLAGS, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, D, "err_detect"},
+{"crccheck", NULL_IF_CONFIG_SMALL("verify embedded CRCs"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, D, "err_detect"},
+{"bitstream", NULL_IF_CONFIG_SMALL("detect bitstream specification deviations"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, D, "err_detect"},
+{"buffer", NULL_IF_CONFIG_SMALL("detect improper bitstream length"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BUFFER }, INT_MIN, INT_MAX, D, "err_detect"},
+{"explode", NULL_IF_CONFIG_SMALL("abort decoding on minor error detection"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_EXPLODE }, INT_MIN, INT_MAX, D, "err_detect"},
+{"ignore_err", NULL_IF_CONFIG_SMALL("ignore errors"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_IGNORE_ERR }, INT_MIN, INT_MAX, D, "err_detect"},
+{"careful",    NULL_IF_CONFIG_SMALL("consider things that violate the spec, are fast to check and have not been seen in the wild as errors"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CAREFUL }, INT_MIN, INT_MAX, D, "err_detect"},
+{"compliant",  NULL_IF_CONFIG_SMALL("consider all spec non compliancies as errors"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_COMPLIANT }, INT_MIN, INT_MAX, D, "err_detect"},
+{"aggressive", NULL_IF_CONFIG_SMALL("consider things that a sane encoder shouldn't do as an error"), 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_AGGRESSIVE }, INT_MIN, INT_MAX, D, "err_detect"},
+{"use_wallclock_as_timestamps", NULL_IF_CONFIG_SMALL("use wallclock as timestamps"), OFFSET(use_wallclock_as_timestamps), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, D},
+{"skip_initial_bytes", NULL_IF_CONFIG_SMALL("set number of bytes to skip before reading header and frames"), OFFSET(skip_initial_bytes), AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX-1, D},
+{"correct_ts_overflow", NULL_IF_CONFIG_SMALL("correct single timestamp overflows"), OFFSET(correct_ts_overflow), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, D},
+{"flush_packets", NULL_IF_CONFIG_SMALL("enable flushing of the I/O context after each packet"), OFFSET(flush_packets), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, E},
+{"metadata_header_padding", NULL_IF_CONFIG_SMALL("set number of bytes to be written as padding in a metadata header"), OFFSET(metadata_header_padding), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, E},
+{"output_ts_offset", NULL_IF_CONFIG_SMALL("set output timestamp offset"), OFFSET(output_ts_offset), AV_OPT_TYPE_DURATION, {.i64 = 0}, -INT64_MAX, INT64_MAX, E},
+{"max_interleave_delta", NULL_IF_CONFIG_SMALL("maximum buffering duration for interleaving"), OFFSET(max_interleave_delta), AV_OPT_TYPE_INT64, { .i64 = 10000000 }, 0, INT64_MAX, E },
+{"f_strict", NULL_IF_CONFIG_SMALL("how strictly to follow the standards (deprecated; use strict, save via avconv)"), OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, D|E, "strict"},
+{"strict", NULL_IF_CONFIG_SMALL("how strictly to follow the standards"), OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, D|E, "strict"},
+{"very", NULL_IF_CONFIG_SMALL("strictly conform to a older more strict version of the spec or reference software"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_VERY_STRICT }, INT_MIN, INT_MAX, D|E, "strict"},
+{"strict", NULL_IF_CONFIG_SMALL("strictly conform to all the things in the spec no matter what the consequences"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_STRICT }, INT_MIN, INT_MAX, D|E, "strict"},
 {"normal", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_NORMAL }, INT_MIN, INT_MAX, D|E, "strict"},
-{"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, D|E, "strict"},
-{"experimental", "allow non-standardized experimental variants", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, D|E, "strict"},
-{"max_ts_probe", "maximum number of packets to read while waiting for the first timestamp", OFFSET(max_ts_probe), AV_OPT_TYPE_INT, { .i64 = 50 }, 0, INT_MAX, D },
-{"avoid_negative_ts", "shift timestamps so they start at 0", OFFSET(avoid_negative_ts), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 2, E, "avoid_negative_ts"},
-{"auto",              "enabled when required by target format",    0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_AUTO },              INT_MIN, INT_MAX, E, "avoid_negative_ts"},
-{"disabled",          "do not change timestamps",                  0, AV_OPT_TYPE_CONST, {.i64 = 0 },                                    INT_MIN, INT_MAX, E, "avoid_negative_ts"},
-{"make_non_negative", "shift timestamps so they are non negative", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
-{"make_zero",         "shift timestamps so they start at 0",       0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_MAKE_ZERO },         INT_MIN, INT_MAX, E, "avoid_negative_ts"},
-{"dump_separator", "set information dump field separator", OFFSET(dump_separator), AV_OPT_TYPE_STRING, {.str = ", "}, CHAR_MIN, CHAR_MAX, D|E},
-{"codec_whitelist", "List of decoders that are allowed to be used", OFFSET(codec_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
-{"format_whitelist", "List of demuxers that are allowed to be used", OFFSET(format_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
-{"protocol_whitelist", "List of protocols that are allowed to be used", OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
-{"protocol_blacklist", "List of protocols that are not allowed to be used", OFFSET(protocol_blacklist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
-{"max_streams", "maximum number of streams", OFFSET(max_streams), AV_OPT_TYPE_INT, { .i64 = 1000 }, 0, INT_MAX, D },
+{"unofficial", NULL_IF_CONFIG_SMALL("allow unofficial extensions"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, D|E, "strict"},
+{"experimental", NULL_IF_CONFIG_SMALL("allow non-standardized experimental variants"), 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, D|E, "strict"},
+{"max_ts_probe", NULL_IF_CONFIG_SMALL("maximum number of packets to read while waiting for the first timestamp"), OFFSET(max_ts_probe), AV_OPT_TYPE_INT, { .i64 = 50 }, 0, INT_MAX, D },
+{"avoid_negative_ts", NULL_IF_CONFIG_SMALL("shift timestamps so they start at 0"), OFFSET(avoid_negative_ts), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 2, E, "avoid_negative_ts"},
+{"auto",              NULL_IF_CONFIG_SMALL("enabled when required by target format"),    0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_AUTO },              INT_MIN, INT_MAX, E, "avoid_negative_ts"},
+{"disabled",          NULL_IF_CONFIG_SMALL("do not change timestamps"),                  0, AV_OPT_TYPE_CONST, {.i64 = 0 },                                    INT_MIN, INT_MAX, E, "avoid_negative_ts"},
+{"make_non_negative", NULL_IF_CONFIG_SMALL("shift timestamps so they are non negative"), 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
+{"make_zero",         NULL_IF_CONFIG_SMALL("shift timestamps so they start at 0"),       0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_MAKE_ZERO },         INT_MIN, INT_MAX, E, "avoid_negative_ts"},
+{"dump_separator", NULL_IF_CONFIG_SMALL("set information dump field separator"), OFFSET(dump_separator), AV_OPT_TYPE_STRING, {.str = "), "}, CHAR_MIN, CHAR_MAX, D|E},
+{"codec_whitelist", NULL_IF_CONFIG_SMALL("List of decoders that are allowed to be used"), OFFSET(codec_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
+{"format_whitelist", NULL_IF_CONFIG_SMALL("List of demuxers that are allowed to be used"), OFFSET(format_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
+{"protocol_whitelist", NULL_IF_CONFIG_SMALL("List of protocols that are allowed to be used"), OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
+{"protocol_blacklist", NULL_IF_CONFIG_SMALL("List of protocols that are not allowed to be used"), OFFSET(protocol_blacklist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
+{"max_streams", NULL_IF_CONFIG_SMALL("maximum number of streams"), OFFSET(max_streams), AV_OPT_TYPE_INT, { .i64 = 1000 }, 0, INT_MAX, D },
 {NULL},
 };
 
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index 81dbc9f16e..b20aa06a83 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -730,7 +730,7 @@ static int wav_read_seek(AVFormatContext *s,
 #define OFFSET(x) offsetof(WAVDemuxContext, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption demux_options[] = {
-    { "ignore_length", "Ignore length", OFFSET(ignore_length), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
+    { "ignore_length", NULL_IF_CONFIG_SMALL("Ignore length"), OFFSET(ignore_length), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
     { NULL },
 };
 
-- 
2.14.1.342.g6490525c54-goog

