diff mbox

[FFmpeg-devel] avfilter: add skipblend filter

Message ID CAF2AhNGO=4LnMSnS-B_4Z-2bUohoQgo81JGt74=gduDt0926eQ@mail.gmail.com
State New
Headers show

Commit Message

Matthias C. M. Troffaes July 21, 2017, 3:09 p.m. UTC
... any chance for this patch to get applied? Quick link to original thread:

https://ffmpeg.org/pipermail/ffmpeg-devel/2017-June/211866.html

Rebased version of patch against latest master attached.

Kind regards,
Matthias
diff mbox

Patch

diff --git a/Changelog b/Changelog
index 187ae79..4fa0870 100644
--- a/Changelog
+++ b/Changelog
@@ -29,6 +29,7 @@  version <next>:
 - limiter video filter
 - libvmaf video filter
 - Dolby E decoder and SMPTE 337M demuxer
+- skipblend video filter
 
 version 3.3:
 - CrystalHD decoder moved to new decode API
diff --git a/doc/filters.texi b/doc/filters.texi
index 119d1be..45b01ac 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -4826,6 +4826,7 @@  The threshold below which a pixel value is considered black; it defaults to
 
 @end table
 
+@anchor{tblend}
 @section blend, tblend
 
 Blend two video frames into each other.
@@ -4837,6 +4838,8 @@  stream, the first input is the "top" layer and second input is
 The @code{tblend} (time blend) filter takes two consecutive frames
 from one single stream, and outputs the result obtained by blending
 the new frame on top of the old frame.
+See @ref{skipblend} for blending more than two frames at once
+from the same stream.
 
 A description of the accepted options follows.
 
@@ -8580,9 +8583,11 @@  This flag is enabled by default.
 @end table
 @end table
 
+@anchor{framestep}
 @section framestep
 
 Select one frame every N-th frame.
+See @ref{skipblend} for blending skipped frames.
 
 This filter accepts the following option:
 @table @option
@@ -13429,6 +13434,31 @@  ffmpeg -i input1.mkv -i input2.mkv -filter_complex "[0:v][1:v] signature=nb_inpu
 
 @end itemize
 
+@anchor{skipblend}
+@section skipblend
+
+Skip frames whilst blending skipped frames, for a motion blur
+effect. The number of frames that are blended (i.e. the exposure time,
+in frames) can be controlled, allowing control over the strength of the
+motion blur.
+See @ref{framestep} for skipping frames without blending.
+See @ref{tblend} for blending consecutive frames without skipping.
+
+This filter accepts the following options:
+@table @option
+@item step
+Skip @code{step} frames each step.
+Allowed values are positive integers between @code{1} and @code{65535}.
+Default value is @code{1}.
+@item blend
+Blend the first @code{blend} frames on every step,
+to produce a motion blur effect.
+Allowed values are positive integers between @code{1} and @code{step},
+where @code{1} corresponds to no motion blur, and @code{step}
+corresponds to maximal motion blur.
+Default value is @code{step}.
+@end table
+
 @anchor{smartblur}
 @section smartblur
 
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index ee16361..06930bb 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -295,6 +295,7 @@  OBJS-$(CONFIG_SHUFFLEPLANES_FILTER)          += vf_shuffleplanes.o
 OBJS-$(CONFIG_SIDEDATA_FILTER)               += f_sidedata.o
 OBJS-$(CONFIG_SIGNALSTATS_FILTER)            += vf_signalstats.o
 OBJS-$(CONFIG_SIGNATURE_FILTER)              += vf_signature.o
+OBJS-$(CONFIG_SKIPBLEND_FILTER)              += vf_skipblend.o
 OBJS-$(CONFIG_SMARTBLUR_FILTER)              += vf_smartblur.o
 OBJS-$(CONFIG_SOBEL_FILTER)                  += vf_convolution.o
 OBJS-$(CONFIG_SPLIT_FILTER)                  += split.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index b1c2d11..977604f 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -306,6 +306,7 @@  static void register_all(void)
     REGISTER_FILTER(SIDEDATA,       sidedata,       vf);
     REGISTER_FILTER(SIGNALSTATS,    signalstats,    vf);
     REGISTER_FILTER(SIGNATURE,      signature,      vf);
+    REGISTER_FILTER(SKIPBLEND,      skipblend,      vf);
     REGISTER_FILTER(SMARTBLUR,      smartblur,      vf);
     REGISTER_FILTER(SOBEL,          sobel,          vf);
     REGISTER_FILTER(SPLIT,          split,          vf);
diff --git a/libavfilter/version.h b/libavfilter/version.h
index a252aec..01dd1db 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -30,7 +30,7 @@ 
 #include "libavutil/version.h"
 
 #define LIBAVFILTER_VERSION_MAJOR   6
-#define LIBAVFILTER_VERSION_MINOR  95
+#define LIBAVFILTER_VERSION_MINOR  96
 #define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
diff --git a/libavfilter/vf_skipblend.c b/libavfilter/vf_skipblend.c
new file mode 100644
index 0000000..2915b43
--- /dev/null
+++ b/libavfilter/vf_skipblend.c
@@ -0,0 +1,272 @@ 
+/*
+ * Copyright (c) 2012 Stefano Sabatini
+ * Copyright (c) 2017 Matthias C. M. Troffaes
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file skipblend filter, based on the framestep filter
+ */
+
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+#include "avfilter.h"
+#include "internal.h"
+#include "video.h"
+
+typedef struct NullContext {
+    const AVClass *class;
+    int64_t frame_step;  ///< step size in frames
+    int64_t frame_blend; ///< how many frames to blend on each step
+    int nb_planes;       ///< number of planes in the pixel format
+    int planewidth[4];   ///< width of each plane (after subsampling)
+    int planeheight[4];  ///< height of each plane (after subsampling)
+    uint32_t *data[4];   ///< buffer for blending input frames
+
+    void (*blend_set)(AVFilterContext *ctx, AVFrame *in, int plane);
+    void (*blend_add)(AVFilterContext *ctx, AVFrame *in, int plane);
+    void (*blend_div)(AVFilterContext *ctx, AVFrame *in, int plane);
+} SkipBlendContext;
+
+#define OFFSET(x) offsetof(SkipBlendContext, x)
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+
+/* note: maximum value for blend must satisfy
+   blend * max_pixel_value <= max_buffer_value
+   where max_pixel_value is UINT16_MAX (support up to 16 bit formats)
+   and max_buffer_value is UINT32_MAX (internal blend buffer uses 32 bits) */
+
+static const AVOption skipblend_options[] = {
+    { "step", "set frame step",  OFFSET(frame_step), AV_OPT_TYPE_INT64, {.i64=1}, 1, UINT16_MAX, FLAGS},
+    { "blend", "number of frames to blend per step",  OFFSET(frame_blend), AV_OPT_TYPE_INT64, {.i64=UINT16_MAX}, 1, UINT16_MAX, FLAGS},
+    { NULL },
+};
+
+AVFILTER_DEFINE_CLASS(skipblend);
+
+#define DEFINE_BLEND(NAME, TYPE, DECL, EXPR)                                   \
+static void blend_##NAME##_##TYPE(AVFilterContext *ctx, AVFrame *in, int plane)\
+{                                                                              \
+    SkipBlendContext *s = ctx->priv;                                           \
+    DECL                                                                       \
+    const int height = s->planeheight[plane];                                  \
+    const int width  = s->planewidth[plane];                                   \
+    const int stride = in->linesize[plane] / sizeof(TYPE);                     \
+    TYPE *src = (TYPE *)in->data[plane];                                       \
+    uint32_t *dst = s->data[plane];                                            \
+    int y, x;                                                                  \
+                                                                               \
+    for (y = 0; y < height; y++) {                                             \
+        for (x = 0; x < width; x++) {                                          \
+            EXPR;                                                              \
+        }                                                                      \
+        src += stride;                                                         \
+    }                                                                          \
+}
+
+#define SET_DECL
+#define SET_EXPR *dst++ = src[x]
+#define ADD_DECL
+#define ADD_EXPR *dst++ += src[x]
+#define DIV_DECL const int frame_blend = s->frame_blend;
+#define DIV_EXPR src[x] = *dst++ / frame_blend
+
+DEFINE_BLEND(set, uint8_t,  SET_DECL, SET_EXPR)
+DEFINE_BLEND(set, uint16_t, SET_DECL, SET_EXPR)
+DEFINE_BLEND(add, uint8_t,  ADD_DECL, ADD_EXPR)
+DEFINE_BLEND(add, uint16_t, ADD_DECL, ADD_EXPR)
+DEFINE_BLEND(div, uint8_t,  DIV_DECL, DIV_EXPR)
+DEFINE_BLEND(div, uint16_t, DIV_DECL, DIV_EXPR)
+
+#undef SET_DECL
+#undef SET_EXPR
+#undef ADD_DECL
+#undef ADD_EXPR
+#undef DIV_DECL
+#undef DIV_EXPR
+#undef DEFINE_BLEND
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+    AVFilterContext *ctx = inlink->dst;
+    SkipBlendContext *s = ctx->priv;
+    AVFilterLink *outlink = ctx->outputs[0];
+    AVFrame *out = NULL;
+    int64_t frame_pos = inlink->frame_count_out % s->frame_step;
+    int direct = 0;
+
+    /* update destination frame buffer; we need to do this even if filter is
+       disabled because buffer might be used for later frames when filter is
+       re-enabled */
+    if (!frame_pos) {
+        /* copy first frame to destination frame buffer */
+        for (int plane = 0; plane < s->nb_planes; plane++)
+            s->blend_set(ctx, in, plane);
+    } else if (frame_pos < s->frame_blend) {
+        /* add current frame to destination frame buffer */
+        for (int plane = 0; plane < s->nb_planes; plane++)
+            s->blend_add(ctx, in, plane);
+    }
+
+    /* write frame */
+    if (ctx->is_disabled) {
+        /* filter is disabled, so pass input frame as is */
+        return ff_filter_frame(outlink, in);
+    } else if ((frame_pos + 1) == s->frame_blend) {
+        /* filter is enabled, so write when all frames are blended */
+        /* create a writable frame */
+        if (av_frame_is_writable(in)) {
+            direct = 1;
+            out = in;
+        } else {
+            out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+            if (!out) {
+                av_frame_free(&in);
+                return AVERROR(ENOMEM);
+            }
+            av_frame_copy_props(out, in);
+        }
+        /* finalize destination frame */
+        for (int plane = 0; plane < s->nb_planes; plane++)
+            s->blend_div(ctx, out, plane);
+        /* free extra frame if created, and pass on output frame */
+        if (!direct)
+            av_frame_free(&in);
+        return ff_filter_frame(outlink, out);
+    } else {
+        av_frame_free(&in);
+        return 0;
+    }
+}
+
+static int query_formats(AVFilterContext *ctx)
+{
+    static const enum AVPixelFormat pix_fmts[] = {
+        AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
+        AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
+        AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
+        AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
+        AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
+        AV_PIX_FMT_YUVJ411P,
+        AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
+        AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GRAY8,
+        AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
+        AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
+        AV_PIX_FMT_GBRP16, AV_PIX_FMT_GRAY16,
+        AV_PIX_FMT_NV12, AV_PIX_FMT_NV21,
+        AV_PIX_FMT_NONE
+    };
+    AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
+    if (!fmts_list)
+        return AVERROR(ENOMEM);
+    return ff_set_common_formats(ctx, fmts_list);
+}
+
+static int config_input_props(AVFilterLink *inlink)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
+    const AVFilterContext *ctx = inlink->dst;
+    SkipBlendContext *s = ctx->priv;
+
+    s->planewidth[0] = s->planewidth[3] = inlink->w;
+    s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
+    s->planeheight[0] = s->planeheight[3] = inlink->h;
+    s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
+    s->nb_planes = av_pix_fmt_count_planes(inlink->format);
+    for (int plane = 0; plane < s->nb_planes; plane++) {
+        const int planesize = s->planewidth[plane] * s->planeheight[plane];
+        s->data[plane] = av_mallocz_array(planesize, sizeof(uint32_t));
+        if (!s->data[plane])
+            return AVERROR(ENOMEM);
+    }
+    if (desc->comp[0].depth == 8) {
+        s->blend_set = blend_set_uint8_t;
+        s->blend_add = blend_add_uint8_t;
+        s->blend_div = blend_div_uint8_t;
+    } else if (desc->comp[0].depth == 16) {
+        s->blend_set = blend_set_uint16_t;
+        s->blend_add = blend_add_uint16_t;
+        s->blend_div = blend_div_uint16_t;
+    } else {
+        return AVERROR_BUG;
+    }
+    return 0;
+}
+
+static int config_output_props(AVFilterLink *outlink)
+{
+    AVFilterContext *ctx = outlink->src;
+    const SkipBlendContext *s = ctx->priv;
+    const AVFilterLink *inlink = ctx->inputs[0];
+
+    outlink->frame_rate =
+        av_div_q(inlink->frame_rate, (AVRational){s->frame_step, 1});
+
+    av_log(ctx, AV_LOG_VERBOSE, "step:%"PRId64" frame_rate:%d/%d(%f) -> frame_rate:%d/%d(%f)\n",
+           s->frame_step,
+           inlink->frame_rate.num, inlink->frame_rate.den, av_q2d(inlink->frame_rate),
+           outlink->frame_rate.num, outlink->frame_rate.den, av_q2d(outlink->frame_rate));
+
+    return 0;
+}
+
+static av_cold int init(AVFilterContext *ctx)
+{
+    SkipBlendContext *s = ctx->priv;
+    s->frame_blend = FFMIN(s->frame_blend, s->frame_step);
+    return 0;
+}
+
+static av_cold void uninit(AVFilterContext *ctx)
+{
+    SkipBlendContext *s = ctx->priv;
+    for (int plane = 0; plane < s->nb_planes; plane++)
+        av_freep(&s->data[plane]);
+}
+
+static const AVFilterPad skipblend_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .config_props = config_input_props,
+        .filter_frame = filter_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad skipblend_outputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .config_props = config_output_props,
+    },
+    { NULL }
+};
+
+AVFilter ff_vf_skipblend = {
+    .name          = "skipblend",
+    .description   = NULL_IF_CONFIG_SMALL("Skip frames whilst blending skipped frames."),
+    .priv_size     = sizeof(SkipBlendContext),
+    .priv_class    = &skipblend_class,
+    .init          = init,
+    .uninit        = uninit,
+    .query_formats = query_formats,
+    .inputs        = skipblend_inputs,
+    .outputs       = skipblend_outputs,
+    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
+};
diff --git a/tests/fate/filter-video.mak b/tests/fate/filter-video.mak
index 53fc7a6..3c4eb02 100644
--- a/tests/fate/filter-video.mak
+++ b/tests/fate/filter-video.mak
@@ -320,6 +320,14 @@  FATE_FILTER_VSYNTH-$(CONFIG_SWAPRECT_FILTER) += $(FATE_SWAPRECT)
 FATE_FILTER_VSYNTH-$(CONFIG_TBLEND_FILTER) += fate-filter-tblend
 fate-filter-tblend: CMD = framecrc -c:v pgmyuv -i $(SRC) -vf tblend=all_mode=difference128
 
+FATE_SKIPBLEND += fate-filter-skipblend-gray-1
+fate-filter-skipblend-gray-1: CMD = framecrc -c:v pgmyuv -i $(SRC) -vf skipblend=step=6:blend=1
+
+FATE_SKIPBLEND += fate-filter-skipblend-gray-2
+fate-filter-skipblend-gray-2: CMD = framecrc -c:v pgmyuv -i $(SRC) -vf skipblend=step=6:blend=3
+
+FATE_FILTER_VSYNTH-$(CONFIG_SKIPBLEND_FILTER) += $(FATE_SKIPBLEND)
+
 FATE_FILTER_VSYNTH-$(CONFIG_TELECINE_FILTER) += fate-filter-telecine
 fate-filter-telecine: CMD = framecrc -c:v pgmyuv -i $(SRC) -vf telecine
 
@@ -384,6 +392,10 @@  fate-filter-fps-cfr: CMD = framecrc -i $(TARGET_SAMPLES)/qtrle/apple-animation-v
 fate-filter-fps-r:   CMD = framecrc -i $(TARGET_SAMPLES)/qtrle/apple-animation-variable-fps-bug.mov -r 30 -vf fps -pix_fmt yuv420p
 fate-filter-fps:     CMD = framecrc -i $(TARGET_SAMPLES)/qtrle/apple-animation-variable-fps-bug.mov -vf fps=30 -pix_fmt yuv420p
 
+FATE_FILTER_SAMPLES-$(call ALLYES, SKIPBLEND_FILTER) += fate-filter-skipblend-anim-1 fate-filter-skipblend-anim-2
+fate-filter-skipblend-anim-1: CMD = framecrc -i $(TARGET_SAMPLES)/filter/anim.mkv -vf skipblend=step=6:blend=1
+fate-filter-skipblend-anim-2: CMD = framecrc -i $(TARGET_SAMPLES)/filter/anim.mkv -vf skipblend=step=6:blend=3
+
 FATE_FILTER_VSYNTH-$(call ALLYES, FORMAT_FILTER SPLIT_FILTER ALPHAEXTRACT_FILTER ALPHAMERGE_FILTER) += fate-filter-alphaextract_alphamerge_rgb
 fate-filter-alphaextract_alphamerge_rgb: tests/data/filtergraphs/alphamerge_alphaextract_rgb
 fate-filter-alphaextract_alphamerge_rgb: CMD = framecrc -c:v pgmyuv -i $(SRC) -filter_complex_script $(TARGET_PATH)/tests/data/filtergraphs/alphamerge_alphaextract_rgb
diff --git a/tests/ref/fate/filter-skipblend-anim-1 b/tests/ref/fate/filter-skipblend-anim-1
new file mode 100644
index 0000000..0a6dd19
--- /dev/null
+++ b/tests/ref/fate/filter-skipblend-anim-1
@@ -0,0 +1,17 @@ 
+#tb 0: 1001/4000
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 320x180
+#sar 0: 1/1
+0,          0,          0,        1,   172800, 0x5adff92c
+0,          1,          1,        1,   172800, 0x37b7f659
+0,          2,          2,        1,   172800, 0xb4a6f1d1
+0,          3,          3,        1,   172800, 0xd596f9c6
+0,          4,          4,        1,   172800, 0xff5a015b
+0,          5,          5,        1,   172800, 0x65477f11
+0,          6,          6,        1,   172800, 0x41569400
+0,          7,          7,        1,   172800, 0xcff9ddf9
+0,          8,          8,        1,   172800, 0xd6daba1e
+0,          9,          9,        1,   172800, 0xad83bda1
+0,         10,         10,        1,   172800, 0x1518bdb3
+0,         11,         11,        1,   172800, 0xfdd1c7ca
diff --git a/tests/ref/fate/filter-skipblend-anim-2 b/tests/ref/fate/filter-skipblend-anim-2
new file mode 100644
index 0000000..3984f6d
--- /dev/null
+++ b/tests/ref/fate/filter-skipblend-anim-2
@@ -0,0 +1,17 @@ 
+#tb 0: 1001/4000
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 320x180
+#sar 0: 1/1
+0,          0,          0,        1,   172800, 0xa99bf27e
+0,          1,          1,        1,   172800, 0x6e2fdfe3
+0,          2,          2,        1,   172800, 0x96e7ea35
+0,          3,          3,        1,   172800, 0x832ff6cf
+0,          4,          4,        1,   172800, 0x7a2dffb9
+0,          5,          5,        1,   172800, 0xa0a05854
+0,          6,          6,        1,   172800, 0x91d93f46
+0,          7,          7,        1,   172800, 0x3051d27b
+0,          8,          8,        1,   172800, 0x0c13b87c
+0,          9,          9,        1,   172800, 0xa80eba4c
+0,         10,         10,        1,   172800, 0xd206ba19
+0,         11,         11,        1,   172800, 0x6608b61c
diff --git a/tests/ref/fate/filter-skipblend-gray-1 b/tests/ref/fate/filter-skipblend-gray-1
new file mode 100644
index 0000000..dd209db
--- /dev/null
+++ b/tests/ref/fate/filter-skipblend-gray-1
@@ -0,0 +1,14 @@ 
+#tb 0: 6/25
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 352x288
+#sar 0: 0/1
+0,          0,          0,        1,   152064, 0x05b789ef
+0,          1,          1,        1,   152064, 0xe20f7c23
+0,          2,          2,        1,   152064, 0xc711ad61
+0,          3,          3,        1,   152064, 0xf25f6acc
+0,          4,          4,        1,   152064, 0xce09f9d6
+0,          5,          5,        1,   152064, 0x0f9d6aca
+0,          6,          6,        1,   152064, 0x4c9737ab
+0,          7,          7,        1,   152064, 0x20cebfa9
+0,          8,          8,        1,   152064, 0xbb87b483
diff --git a/tests/ref/fate/filter-skipblend-gray-2 b/tests/ref/fate/filter-skipblend-gray-2
new file mode 100644
index 0000000..c2dfc9b
--- /dev/null
+++ b/tests/ref/fate/filter-skipblend-gray-2
@@ -0,0 +1,13 @@ 
+#tb 0: 6/25
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 352x288
+#sar 0: 0/1
+0,          0,          0,        1,   152064, 0x999eb961
+0,          1,          1,        1,   152064, 0x0e947017
+0,          2,          2,        1,   152064, 0x2f338ae6
+0,          3,          3,        1,   152064, 0x4ead448b
+0,          4,          4,        1,   152064, 0x6aef2c67
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