diff mbox series

[FFmpeg-devel,015/114] avcodec/clearvideo: Avoid huge VLC length tables

Message ID 20201110104851.321029-16-andreas.rheinhardt@gmail.com
State Superseded
Headers show
Series VLC, esp. init_vlc patches
Related show

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Context Check Description
andriy/x86_make success Make finished
andriy/x86_make_fate success Make fate finished

Commit Message

Andreas Rheinhardt Nov. 10, 2020, 10:47 a.m. UTC
After the motion vector and bias values tables have been reordered so
that the codes are ordered from left to right, it emerged that the
length of these entries are actually ascending for every table.
Therefore it is possible to encode them in a run-length style and create
the actual length tables during runtime. This commit implements this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
---
 libavcodec/clearvideo.c     |  34 ++-
 libavcodec/clearvideodata.h | 413 +++---------------------------------
 2 files changed, 62 insertions(+), 385 deletions(-)
diff mbox series

Patch

diff --git a/libavcodec/clearvideo.c b/libavcodec/clearvideo.c
index 34d24426ba..162dc13ce7 100644
--- a/libavcodec/clearvideo.c
+++ b/libavcodec/clearvideo.c
@@ -646,10 +646,32 @@  static int clv_decode_frame(AVCodecContext *avctx, void *data,
     return mb_ret < 0 ? mb_ret : buf_size;
 }
 
+static av_cold int build_vlc(VLC *vlc, const uint8_t counts[16],
+                             const uint16_t **syms)
+{
+    uint8_t lens[MAX_VLC_ENTRIES];
+    unsigned num = 0;
+    int ret;
+
+    for (int i = 0; i < 16; i++) {
+        unsigned count = counts[i];
+        if (count == 255) /* Special case for Y_3 table */
+            count = 303;
+        for (count += num; num < count; num++)
+            lens[num] = i + 1;
+    }
+    ret = ff_init_vlc_from_lengths(vlc, 9, num, lens, 1, *syms, 2, 2, 0, 0);
+    if (ret < 0)
+        return ret;
+    *syms += num;
+    return 0;
+}
+
 static av_cold int clv_decode_init(AVCodecContext *avctx)
 {
     CLVContext *const c = avctx->priv_data;
     static const uint8_t has_flags[] = { 1, 1, 1, 0, 1, 1, 0, 1, 1 };
+    const uint16_t *mv_syms = clv_mv_syms, *bias_syms = clv_bias_syms;
     int ret, w, h;
 
     if (avctx->extradata_size == 110) {
@@ -705,14 +727,13 @@  static av_cold int clv_decode_init(AVCodecContext *avctx)
         return ret;
     }
 
-    for (int i = 0, j = 0;; i++) {
+    for (int i = 0, j = 0, k = 0;; i++) {
         if (clv_mv_escape[i]) {
             c->lev[i].mv_esc = clv_mv_escape[i];
-            ret = ff_init_vlc_from_lengths(&c->lev[i].mv_cb, 9, clv_mv_sizes[i],
-                                           clv_mv_bits[i], 1,
-                                           clv_mv_syms[i], 2, 2, 0, 0);
+            ret = build_vlc(&c->lev[i].mv_cb, clv_mv_len_counts[k], &mv_syms);
             if (ret < 0)
                 return ret;
+            k++;
         }
         if (i == FF_ARRAY_ELEMS(has_flags))
             break;
@@ -724,9 +745,8 @@  static av_cold int clv_decode_init(AVCodecContext *avctx)
                 return ret;
 
             c->lev[i + 1].bias_esc = 0x100;
-            ret = ff_init_vlc_from_lengths(&c->lev[i + 1].bias_cb, 9, clv_bias_sizes[j],
-                                           clv_bias_bits[j], 1,
-                                           clv_bias_syms[j], 2, 2, 0, 0);
+            ret = build_vlc(&c->lev[i + 1].bias_cb,
+                            clv_bias_len_counts[j], &bias_syms);
             if (ret < 0)
                 return ret;
             j++;
diff --git a/libavcodec/clearvideodata.h b/libavcodec/clearvideodata.h
index fa0721cb0c..d2c658eb5d 100644
--- a/libavcodec/clearvideodata.h
+++ b/libavcodec/clearvideodata.h
@@ -24,6 +24,7 @@ 
 
 #include "libavutil/common.h"
 
+#define MAX_VLC_ENTRIES 1370
 #define NUM_DC_CODES 127
 #define NUM_AC_CODES 104
 
@@ -114,26 +115,19 @@  static const uint16_t clv_mv_escape[] = {
     0x0909, 0x0A0A, 0x1010, 0x1313, 0, 0x0808, 0x0B0B, 0, 0x0808, 0x0B0B
 };
 
-static const uint8_t clv_mvy_0_bits[] = {
-     1,  4,  4,  5,  5,  6,  6,  6,  6,  6,  6,  7,  7,  7,  7,  7,  7,  7,  7,
-     7,  7,  7,  7,  7,  8,  8,  8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9,
-     9,  9,  9,  9,  9,  9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16,
-    16, 16, 16, 16, 16
+static const uint8_t clv_mv_len_counts[][16] = {
+    {  1,  0,  0,  2,  2,  6, 13,  6, 14, 28,  38,  38,  58,  56,  20,   8 },
+    {  1,  0,  0,  2,  3,  4,  8, 10, 20, 30,  37,  63,  84,  68,  32,   0 },
+    {  0,  1,  0,  4,  0,  6,  9, 24, 32, 48, 112, 142, 232, 166, 142,  44 },
+    {  0,  1,  0,  2,  2,  6,  9, 16, 40, 82, 146, 228, 191, 255, 244, 100 },
+    {  0,  0,  2,  5,  2, 12,  6, 15, 14, 24,  37,  33,  24,  28,   8,  16 },
+    {  1,  0,  0,  2,  2,  5, 10, 12, 19, 19,  37,  74,  69, 120,  48,  24 },
+    {  0,  0,  2,  3,  8,  7,  8,  8, 23, 37,  30,  36,  28,  16,  12,   8 },
+    {  1,  0,  0,  0,  4,  5, 14, 18, 20, 39,   6,  80,  75, 112,  36,  32 },
 };
 
-static const uint16_t clv_mvy_0_syms[] = {
+static const uint16_t clv_mv_syms[] = {
+    /* Y_0 motion vectors - 290 entries */
     0x0000, 0x00FF, 0x0001, 0xFF00, 0x0100, 0x0002, 0x00FE, 0x0909, 0x00FD,
     0x0004, 0x00FC, 0x0003, 0x01FF, 0xFF01, 0x0101, 0xFFFF, 0xFE00, 0x0200,
     0x0005, 0x00FB, 0x00FA, 0x0006, 0x0007, 0x00F9, 0xFF02, 0x0102, 0xFFFE,
@@ -167,32 +161,7 @@  static const uint16_t clv_mvy_0_syms[] = {
     0xF8F9, 0x0807, 0x08F9, 0xF805, 0xF904, 0x0704, 0xF9FC, 0x07FC, 0x0806,
     0x08FA, 0xF806, 0xF8FA, 0x0804, 0x08FC, 0xF804, 0xF8FC, 0x0808, 0xF8F8,
     0x08F8, 0xF808,
-};
-
-static const uint8_t clv_mvy_1_bits[] = {
-     1,  4,  4,  5,  5,  5,  6,  6,  6,  6,  7,  7,  7,  7,  7,  7,  7,  7,  8,
-     8,  8,  8,  8,  8,  8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
-     9,  9,  9,  9,  9,  9,  9,  9,  9,  9, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15
-};
-
-static const uint16_t clv_mvy_1_syms[] = {
+    /* Y_1 motion vectors - 362 entries */
     0x0000, 0x00FF, 0x0001, 0xFF00, 0x0100, 0x0A0A, 0xFFFF, 0x01FF, 0xFF01,
     0x0101, 0x00FE, 0x0002, 0x0003, 0x00FD, 0x0004, 0x00FC, 0xFE00, 0x0200,
     0x0005, 0x00FB, 0x00FA, 0x0006, 0x0007, 0x00F9, 0xFFFE, 0x01FE, 0xFF02,
@@ -234,63 +203,7 @@  static const uint16_t clv_mvy_1_syms[] = {
     0x0905, 0xF705, 0x09FB, 0xF7FB, 0x09F8, 0xF7F8, 0x0908, 0xF708, 0x08F7,
     0xF809, 0xF8F7, 0x0809, 0xF709, 0xF7F7, 0x0909, 0x09F7, 0xF7F9, 0x09F9,
     0x0907, 0xF707,
-};
-
-static const uint8_t clv_mvy_2_bits[] = {
-     2,  4,  4,  4,  4,  6,  6,  6,  6,  6,  6,  7,  7,  7,  7,  7,  7,  7,  7,
-     7,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,
-     8,  8,  8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
-     9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
-};
-
-static const uint16_t clv_mvy_2_syms[] = {
+    /* Y_2 motion vectors - 962 entries */
     0x0000, 0x0001, 0x00FF, 0xFF00, 0x0100, 0x0002, 0x00FE, 0x0101, 0xFFFF,
     0x01FF, 0xFF01, 0x0003, 0x00FD, 0x0004, 0x00FC, 0x1010, 0x0005, 0x00FB,
     0xFE00, 0x0200, 0xFF02, 0x0102, 0xFFFE, 0x01FE, 0x00FA, 0x0006, 0x00F9,
@@ -398,85 +311,7 @@  static const uint16_t clv_mvy_2_syms[] = {
     0x0FF6, 0xF1F6, 0x0FF5, 0x0F0A, 0xF10A, 0xF1F5, 0xF1F3, 0xF10D, 0x0FF3,
     0x0F0D, 0x0FFF, 0xF1FF, 0xF101, 0x0F01, 0x0F0F, 0xF1F1, 0x0FF1, 0xF10F,
     0x0FF2, 0xF10C, 0x0F0E, 0x0FF4, 0xF1F4, 0xF1F2, 0x0F0C, 0xF10E,
-};
-
-static const uint8_t clv_mvy_3_bits[] = {
-     2,  4,  4,  5,  5,  6,  6,  6,  6,  6,  6,  7,  7,  7,  7,  7,  7,  7,  7,
-     7,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  9,  9,
-     9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
-     9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16
-};
-
-static const uint16_t clv_mvy_3_syms[] = {
+    /* Y_3 motion vectors - 1370 elements */
     0x0000, 0x00FF, 0x0001, 0xFF00, 0x0100, 0x00FE, 0x0002, 0xFFFF, 0x01FF,
     0xFF01, 0x0101, 0x00FD, 0x0003, 0x00FC, 0x0004, 0xFE00, 0x0200, 0x0005,
     0x00FB, 0x1313, 0xFFFE, 0x01FE, 0xFF02, 0x0102, 0x0006, 0x00FA, 0xFEFF,
@@ -630,24 +465,7 @@  static const uint16_t clv_mvy_3_syms[] = {
     0x11EE, 0x1112, 0xEFEE, 0x1111, 0xEE11, 0xEEEF, 0x12EF, 0x1211, 0x1212,
     0x12EE, 0xEEEE, 0xEE12, 0xEEF1, 0x12F1, 0xEE0F, 0x120F, 0xEE10, 0x1210,
     0xEEF0, 0x12F0,
-};
-
-static const uint8_t clv_mvu_1_bits[] = {
-     3,  3,  4,  4,  4,  4,  4,  5,  5,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
-     6,  6,  7,  7,  7,  7,  7,  7,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,
-     8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15,
-    15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
-};
-
-static const uint16_t clv_mvu_1_syms[] = {
+    /* U_1 motion vectors - 226 entries */
     0x0001, 0x00FF, 0x0000, 0x0002, 0x00FE, 0x00FD, 0x0003, 0xFF00, 0x0100,
     0xFE00, 0x0200, 0x0101, 0xFFFF, 0x01FF, 0xFF01, 0x00FB, 0x0005, 0xFD00,
     0x0300, 0xFC00, 0x0400, 0x0004, 0x00FC, 0x0808, 0x00FA, 0x0006, 0x0201,
@@ -674,36 +492,7 @@  static const uint16_t clv_mvu_1_syms[] = {
     0x0703, 0xF903, 0xF9FD, 0xFB05, 0x0505, 0xFBFB, 0x05FB, 0xFA05, 0x07FB,
     0xF9FB, 0x0605, 0x0705, 0x06FB, 0xFAFB, 0xF905, 0xF9F9, 0xF907, 0x07F9,
     0x0707,
-};
-
-static const uint8_t clv_mvu_2_bits[] = {
-     1,  4,  4,  5,  5,  6,  6,  6,  6,  6,  7,  7,  7,  7,  7,  7,  7,  7,  7,
-     7,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  9,  9,  9,  9,  9,  9,
-     9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16
-};
-
-static const uint16_t clv_mvu_2_syms[] = {
+    /* U_2 motion vectors - 442 entries */
     0x0000, 0xFF00, 0x0100, 0x00FF, 0x0001, 0xFFFF, 0x01FF, 0xFF01, 0x0101,
     0x0B0B, 0x0002, 0x00FE, 0xFE00, 0x0200, 0x0003, 0x00FD, 0xFEFF, 0x02FF,
     0xFE01, 0x0201, 0xFF02, 0x0102, 0xFFFE, 0x01FE, 0xFD00, 0x0300, 0x00FC,
@@ -754,24 +543,7 @@  static const uint16_t clv_mvu_2_syms[] = {
     0xF80A, 0x090A, 0xF7F6, 0x0A09, 0x0AF8, 0xF6F6, 0x0AF9, 0xF6F7, 0x0A07,
     0x0A0A, 0x0AF7, 0x0AF6, 0xF60A, 0x0A08, 0xF6F9, 0xF609, 0xF607, 0xF6F8,
     0xF608,
-};
-
-static const uint8_t clv_mvv_1_bits[] = {
-     3,  3,  4,  4,  4,  5,  5,  5,  5,  5,  5,  5,  5,  6,  6,  6,  6,  6,  6,
-     6,  7,  7,  7,  7,  7,  7,  7,  7,  8,  8,  8,  8,  8,  8,  8,  8,  9,  9,
-     9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
-     9,  9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16
-};
-
-static const uint16_t clv_mvv_1_syms[] = {
+    /* V_1 motion vectors - 226 entries */
     0x0001, 0x00FF, 0x0000, 0xFF00, 0x0100, 0x0002, 0x00FE, 0x00FD, 0x0003,
     0x0004, 0x00FC, 0x00FB, 0x0005, 0x0101, 0xFFFF, 0x01FF, 0xFF01, 0xFE00,
     0x0200, 0xFD00, 0x0300, 0x0808, 0xFF02, 0x0102, 0xFFFE, 0x01FE, 0xFC00,
@@ -798,36 +570,7 @@  static const uint16_t clv_mvv_1_syms[] = {
     0xF9FB, 0x0705, 0x07FB, 0xFA06, 0x0606, 0xFA07, 0x0607, 0xFAF9, 0x06F9,
     0x06FA, 0xFAFA, 0xF906, 0x07FA, 0xF9FA, 0x0706, 0xF907, 0xF9F9, 0x07F9,
     0x0707,
-};
-
-static const uint8_t clv_mvv_2_bits[] = {
-     1,  5,  5,  5,  5,  6,  6,  6,  6,  6,  7,  7,  7,  7,  7,  7,  7,  7,  7,
-     7,  7,  7,  7,  7,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,
-     8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
-     9,  9,  9,  9,  9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
-    10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16, 16, 16
-};
-
-static const uint16_t clv_mvv_2_syms[] = {
+    /* V_2 motion vectors - 442 elements */
     0x0000, 0x00FF, 0x0001, 0xFF00, 0x0100, 0xFFFF, 0x01FF, 0xFF01, 0x0101,
     0x0B0B, 0xFE00, 0x0200, 0xFEFF, 0x02FF, 0xFE01, 0x0201, 0x0002, 0x00FE,
     0x00FC, 0x0003, 0x0004, 0x00FD, 0x0005, 0x00FB, 0xFDFF, 0x03FF, 0xFD01,
@@ -880,15 +623,18 @@  static const uint16_t clv_mvv_2_syms[] = {
     0xF6F6,
 };
 
-static const uint8_t clv_biasy_1_bits[] = {
-     1,  2,  3,  5,  5,  7,  7,  7,  7,  8,  8,  8,  9,  9,  9, 10, 10, 10, 10,
-    10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13,
-    13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14,
-    14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    16, 16
+static const uint8_t clv_bias_len_counts[][16] = {
+    {  1,  1,  1,  0,  2,  0,  4,  3,  3,  6,  5, 10, 16,  7, 17,  2 },
+    {  1,  0,  2,  2,  0,  4,  2,  6,  4,  8,  6, 10,  9,  7, 23, 14 },
+    {  0,  2,  1,  3,  2,  3,  4,  4,  8,  8,  8,  7,  7, 10, 21,  6 },
+    {  1,  1,  1,  0,  2,  1,  3,  2,  4,  4,  2,  8,  6,  2,  3,  2 },
+    {  1,  0,  2,  2,  1,  3,  2,  4,  4,  4,  4,  4,  2,  7,  6,  8 },
+    {  1,  1,  1,  0,  2,  2,  1,  3,  2,  4,  3,  5,  6,  6,  3,  2 },
+    {  1,  0,  2,  2,  2,  1,  3,  2,  4,  5,  1,  4, 10,  2,  3,  2 },
 };
 
-static const uint16_t clv_biasy_1_syms[] = {
+static const uint16_t clv_bias_syms[] = {
+    /* Y_1 bias values - 78 entries */
     0x0000, 0xFFFC, 0x0004, 0xFFF8, 0x0008, 0xFFF4, 0x000C, 0xFFF0, 0x0010,
     0xFFEC, 0x0014, 0xFFE8, 0x0018, 0xFFE4, 0x001C, 0x0020, 0xFFE0, 0x0024,
     0xFFDC, 0x0028, 0xFFD8, 0x002C, 0xFFD4, 0x0030, 0xFFD0, 0xFFCC, 0x0034,
@@ -898,18 +644,7 @@  static const uint16_t clv_biasy_1_syms[] = {
     0x006C, 0xFF94, 0x0070, 0xFF90, 0x0074, 0xFF8C, 0xFF88, 0x0078, 0x007C,
     0xFF84, 0xFF80, 0x0080, 0x0088, 0xFF78, 0xFF7C, 0x0084, 0x008C, 0xFF74,
     0x0090, 0xFF70, 0x0094, 0xFF6C, 0xFF68, 0x0098,
-};
-
-static const uint8_t clv_biasy_2_bits[] = {
-     1,  3,  3,  4,  4,  6,  6,  6,  6,  7,  7,  8,  8,  8,  8,  8,  8,  9,  9,
-     9,  9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 12, 12, 12,
-    12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14,
-    14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-    16, 16, 16
-};
-
-static const uint16_t clv_biasy_2_syms[] = {
+    /* Y_2 bias values - 98 entries */
     0x0000, 0xFFFC, 0x0004, 0xFFF8, 0x0008, 0xFFF4, 0x000C, 0xFFF0, 0x0010,
     0xFFEC, 0x0014, 0xFFE8, 0x0018, 0xFFE4, 0x001C, 0xFFE0, 0x0020, 0xFFDC,
     0x0024, 0xFFD8, 0x0028, 0xFFD4, 0x002C, 0xFFD0, 0x0030, 0xFFCC, 0x0034,
@@ -921,17 +656,7 @@  static const uint16_t clv_biasy_2_syms[] = {
     0x0090, 0xFF70, 0x0094, 0xFF6C, 0xFF64, 0x009C, 0xFF68, 0x0098, 0xFF60,
     0x00A0, 0xFF5C, 0x00A4, 0x00A8, 0xFF58, 0x00AC, 0xFF54, 0xFF50, 0x00B0,
     0x00B4, 0xFF4C, 0xFF48, 0x00B8, 0xFF44, 0x00BC, 0xFF40, 0x00C0,
-};
-
-static const uint8_t clv_biasy_3_bits[] = {
-     2,  2,  3,  4,  4,  4,  5,  5,  6,  6,  6,  7,  7,  7,  7,  8,  8,  8,  8,
-     9,  9,  9,  9,  9,  9,  9,  9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11,
-    11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13,
-    14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16
-};
-
-static const uint16_t clv_biasy_3_syms[] = {
+    /* Y_3 bias values - 94 entries */
     0x0000, 0xFFFC, 0x0004, 0xFFF8, 0x0008, 0xFFF4, 0x000C, 0xFFF0, 0x0010,
     0xFFEC, 0x0014, 0xFFE8, 0x0018, 0xFFE4, 0x001C, 0xFFE0, 0x0020, 0xFFDC,
     0x0024, 0xFFD8, 0x0028, 0xFFD4, 0x002C, 0xFFD0, 0x0030, 0xFFCC, 0x0034,
@@ -943,58 +668,26 @@  static const uint16_t clv_biasy_3_syms[] = {
     0x0090, 0x0094, 0xFF6C, 0x0098, 0xFF68, 0xFF64, 0x009C, 0xFF60, 0x00A0,
     0xFF5C, 0x00A4, 0x0100, 0xFF58, 0x00A8, 0x00AC, 0xFF54, 0xFF50, 0x00B0,
     0xFF4C, 0x00B4, 0x00B8, 0xFF48,
-};
-
-static const uint8_t clv_biasu_1_bits[] = {
-     1,  2,  3,  5,  5,  6,  7,  7,  7,  8,  8,  9,  9,  9,  9, 10, 10, 10, 10,
-    11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 15,
-    15, 15, 16, 16
-};
-
-static const uint16_t clv_biasu_1_syms[] = {
+    /* U_1 bias values - 42 entries */
     0x0000, 0xFFFC, 0x0004, 0xFFF8, 0x0008, 0xFFF4, 0x000C, 0xFFF0, 0x0010,
     0xFFEC, 0x0014, 0x0018, 0xFFE8, 0xFFE4, 0x001C, 0xFFE0, 0x0020, 0xFFDC,
     0x0024, 0xFFD8, 0x0028, 0x002C, 0xFFD4, 0x0030, 0xFFCC, 0xFFD0, 0x0034,
     0xFFC8, 0x0038, 0x003C, 0xFFC4, 0xFFC0, 0x0040, 0xFFBC, 0x0044, 0xFFB8,
     0x0048, 0xFFB4, 0x004C, 0x0050, 0xFFB0, 0x0100,
-};
-
-static const uint8_t clv_biasu_2_bits[] = {
-     1,  3,  3,  4,  4,  5,  6,  6,  6,  7,  7,  8,  8,  8,  8,  9,  9,  9,  9,
-    10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 14, 14, 14, 14, 14,
-    14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16
-};
-
-static const uint16_t clv_biasu_2_syms[] = {
+    /* U_2 bias values - 54 entries */
     0x0000, 0xFFFC, 0x0004, 0xFFF8, 0x0008, 0xFFF4, 0x000C, 0xFFF0, 0x0010,
     0x0014, 0xFFEC, 0x0018, 0xFFE8, 0x001C, 0xFFE4, 0x0020, 0xFFE0, 0xFFDC,
     0x0024, 0xFFD8, 0x0028, 0xFFD4, 0x002C, 0x0030, 0xFFD0, 0x0034, 0xFFCC,
     0x0038, 0xFFC8, 0x003C, 0xFFC4, 0x0040, 0xFFC0, 0xFFBC, 0x0044, 0xFFB4,
     0xFFB8, 0x0048, 0x004C, 0x0100, 0x0058, 0xFFB0, 0xFFA8, 0x0054, 0xFFAC,
     0x0050, 0xFF9C, 0x005C, 0xFFA0, 0x0068, 0xFF98, 0xFFA4, 0x0064, 0x0060,
-};
-
-static const uint8_t clv_biasv_1_bits[] = {
-     1,  2,  3,  5,  5,  6,  6,  7,  8,  8,  8,  9,  9, 10, 10, 10, 10, 11, 11,
-    11, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 15,
-    15, 15, 16, 16
-};
-
-static const uint16_t clv_biasv_1_syms[] = {
+    /* V_1 bias values - 42 entries */
     0x0000, 0xFFFC, 0x0004, 0xFFF8, 0x0008, 0xFFF4, 0x000C, 0xFFF0, 0x0010,
     0xFFEC, 0x0014, 0x0018, 0xFFE8, 0xFFE4, 0x001C, 0xFFE0, 0x0020, 0xFFDC,
     0x0024, 0xFFD8, 0x0028, 0x002C, 0xFFD4, 0x0030, 0xFFD0, 0xFFCC, 0x0034,
     0xFFC8, 0x0038, 0x003C, 0xFFC4, 0x0100, 0xFFC0, 0x0040, 0xFFBC, 0x0044,
     0xFFB8, 0x0048, 0xFFB4, 0x004C, 0x0050, 0xFFB0,
-};
-
-static const uint8_t clv_biasv_2_bits[] = {
-     1,  3,  3,  4,  4,  5,  5,  6,  7,  7,  7,  8,  8,  9,  9,  9,  9, 10, 10,
-    10, 10, 10, 11, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14,
-    14, 15, 15, 15, 16, 16
-};
-
-static const uint16_t clv_biasv_2_syms[] = {
+    /* V_2 bias values - 44 entries */
     0x0000, 0xFFFC, 0x0004, 0xFFF8, 0x0008, 0xFFF4, 0x000C, 0xFFF0, 0x0010,
     0xFFEC, 0x0014, 0xFFE8, 0x0018, 0x001C, 0xFFE4, 0xFFE0, 0x0020, 0xFFDC,
     0x0024, 0x0028, 0xFFD8, 0x002C, 0xFFD4, 0x0030, 0xFFD0, 0xFFCC, 0x0034,
@@ -1002,40 +695,4 @@  static const uint16_t clv_biasv_2_syms[] = {
     0x0048, 0xFFB4, 0x004C, 0x0100, 0xFFB0, 0x0054, 0xFFAC, 0x0050
 };
 
-static const uint8_t *const clv_bias_bits[] = {
-    clv_biasy_1_bits, clv_biasy_2_bits, clv_biasy_3_bits,
-    clv_biasu_1_bits, clv_biasu_2_bits,
-    clv_biasv_1_bits, clv_biasv_2_bits
-};
-
-static const uint16_t *const clv_bias_syms[] = {
-    clv_biasy_1_syms, clv_biasy_2_syms, clv_biasy_3_syms,
-    clv_biasu_1_syms, clv_biasu_2_syms,
-    clv_biasv_1_syms, clv_biasv_2_syms
-};
-
-static const int clv_bias_sizes[] = {
-    FF_ARRAY_ELEMS(clv_biasy_1_bits), FF_ARRAY_ELEMS(clv_biasy_2_bits), FF_ARRAY_ELEMS(clv_biasy_3_bits),
-    FF_ARRAY_ELEMS(clv_biasu_1_bits), FF_ARRAY_ELEMS(clv_biasu_2_bits),
-    FF_ARRAY_ELEMS(clv_biasv_1_bits), FF_ARRAY_ELEMS(clv_biasv_2_bits)
-};
-
-static const uint8_t *const clv_mv_bits[] = {
-    clv_mvy_0_bits, clv_mvy_1_bits, clv_mvy_2_bits, clv_mvy_3_bits,
-    NULL, clv_mvu_1_bits, clv_mvu_2_bits,
-    NULL, clv_mvv_1_bits, clv_mvv_2_bits
-};
-
-static const uint16_t *const clv_mv_syms[] = {
-    clv_mvy_0_syms, clv_mvy_1_syms, clv_mvy_2_syms, clv_mvy_3_syms,
-    NULL, clv_mvu_1_syms, clv_mvu_2_syms,
-    NULL, clv_mvv_1_syms, clv_mvv_2_syms
-};
-
-static const int clv_mv_sizes[] = {
-    FF_ARRAY_ELEMS(clv_mvy_0_bits), FF_ARRAY_ELEMS(clv_mvy_1_bits), FF_ARRAY_ELEMS(clv_mvy_2_bits), FF_ARRAY_ELEMS(clv_mvy_3_bits),
-    0, FF_ARRAY_ELEMS(clv_mvu_1_bits), FF_ARRAY_ELEMS(clv_mvu_2_bits),
-    0, FF_ARRAY_ELEMS(clv_mvv_1_bits), FF_ARRAY_ELEMS(clv_mvv_2_bits)
-};
-
 #endif /* AVCODEC_CLEARVIDEODATA_H */