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State Superseded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 | expand

Checks

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 */