[FFmpeg-devel] [PATCH 10/10] avcodec/speedhq: Make speedhq_vlc const

[Michael Niedermayer]

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/speedhq.c | 73 +++++++++++++++++++++-----------------------
 1 file changed, 34 insertions(+), 39 deletions(-)

diff --git a/libavcodec/speedhq.c b/libavcodec/speedhq.c
index 6d3487ca19..890b8253cd 100644
--- a/libavcodec/speedhq.c
+++ b/libavcodec/speedhq.c
@@ -58,40 +58,40 @@ typedef struct SHQContext {
 
 
 /* AC codes: Very similar but not identical to MPEG-2. */
-static uint16_t speedhq_vlc[123][2] = {
-    {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5},
-    {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7},
-    {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8},
-    {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14},
-    {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14},
-    {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14},
-    {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14},
-    {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15},
-    {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15},
-    {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15},
-    {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8},
-    {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15},
-    {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},
-    {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},
-    {0x11,16}, {0x10,16}, {0x18,13}, {0x17,13},
-    {0x05, 5}, {0x07, 7}, {0xfc, 8}, {0x0c,10},
-    {0x14,13}, {0x18,12}, {0x14,12}, {0x13,12},
-    {0x10,12}, {0x1a,13}, {0x19,13}, {0x07, 5},
-    {0x26, 8}, {0x1c,12}, {0x13,13}, {0x1b,12},
-    {0x06, 6}, {0xfd, 8}, {0x12,12}, {0x1d,12},
-    {0x07, 6}, {0x04, 9}, {0x12,13}, {0x06, 7},
-    {0x1e,12}, {0x14,16}, {0x04, 7}, {0x15,12},
-    {0x05, 7}, {0x11,12}, {0x78, 7}, {0x11,13},
-    {0x7a, 7}, {0x10,13}, {0x21, 8}, {0x1a,16},
-    {0x25, 8}, {0x19,16}, {0x24, 8}, {0x18,16},
-    {0x05, 9}, {0x17,16}, {0x07, 9}, {0x16,16},
-    {0x0d,10}, {0x15,16}, {0x1f,12}, {0x1a,12},
-    {0x19,12}, {0x17,12}, {0x16,12}, {0x1f,13},
-    {0x1e,13}, {0x1d,13}, {0x1c,13}, {0x1b,13},
-    {0x1f,16}, {0x1e,16}, {0x1d,16}, {0x1c,16},
-    {0x1b,16},
-    {0x01,6}, /* escape */
-    {0x06,4}, /* EOB */
+static const uint16_t speedhq_vlc[123][2] = {
+    {0x0001,  2}, {0x0003,  3}, {0x000E,  4}, {0x0007,  5},
+    {0x0017,  5}, {0x0028,  6}, {0x0008,  6}, {0x006F,  7},
+    {0x001F,  7}, {0x00C4,  8}, {0x0044,  8}, {0x005F,  8},
+    {0x00DF,  8}, {0x007F,  8}, {0x00FF,  8}, {0x3E00, 14},
+    {0x1E00, 14}, {0x2E00, 14}, {0x0E00, 14}, {0x3600, 14},
+    {0x1600, 14}, {0x2600, 14}, {0x0600, 14}, {0x3A00, 14},
+    {0x1A00, 14}, {0x2A00, 14}, {0x0A00, 14}, {0x3200, 14},
+    {0x1200, 14}, {0x2200, 14}, {0x0200, 14}, {0x0C00, 15},
+    {0x7400, 15}, {0x3400, 15}, {0x5400, 15}, {0x1400, 15},
+    {0x6400, 15}, {0x2400, 15}, {0x4400, 15}, {0x0400, 15},
+    {0x0002,  3}, {0x000C,  5}, {0x004F,  7}, {0x00E4,  8},
+    {0x0004,  8}, {0x0D00, 13}, {0x1500, 13}, {0x7C00, 15},
+    {0x3C00, 15}, {0x5C00, 15}, {0x1C00, 15}, {0x6C00, 15},
+    {0x2C00, 15}, {0x4C00, 15}, {0xC800, 16}, {0x4800, 16},
+    {0x8800, 16}, {0x0800, 16}, {0x0300, 13}, {0x1D00, 13},
+    {0x0014,  5}, {0x0070,  7}, {0x003F,  8}, {0x00C0, 10},
+    {0x0500, 13}, {0x0180, 12}, {0x0280, 12}, {0x0C80, 12},
+    {0x0080, 12}, {0x0B00, 13}, {0x1300, 13}, {0x001C,  5},
+    {0x0064,  8}, {0x0380, 12}, {0x1900, 13}, {0x0D80, 12},
+    {0x0018,  6}, {0x00BF,  8}, {0x0480, 12}, {0x0B80, 12},
+    {0x0038,  6}, {0x0040,  9}, {0x0900, 13}, {0x0030,  7},
+    {0x0780, 12}, {0x2800, 16}, {0x0010,  7}, {0x0A80, 12},
+    {0x0050,  7}, {0x0880, 12}, {0x000F,  7}, {0x1100, 13},
+    {0x002F,  7}, {0x0100, 13}, {0x0084,  8}, {0x5800, 16},
+    {0x00A4,  8}, {0x9800, 16}, {0x0024,  8}, {0x1800, 16},
+    {0x0140,  9}, {0xE800, 16}, {0x01C0,  9}, {0x6800, 16},
+    {0x02C0, 10}, {0xA800, 16}, {0x0F80, 12}, {0x0580, 12},
+    {0x0980, 12}, {0x0E80, 12}, {0x0680, 12}, {0x1F00, 13},
+    {0x0F00, 13}, {0x1700, 13}, {0x0700, 13}, {0x1B00, 13},
+    {0xF800, 16}, {0x7800, 16}, {0xB800, 16}, {0x3800, 16},
+    {0xD800, 16},
+    {0x0020,  6}, /* escape */
+    {0x0006,  4}  /* EOB */
 };
 
 static const uint8_t speedhq_level[121] = {
@@ -580,7 +580,6 @@ static av_cold void speedhq_static_init(void)
 {
     uint16_t ff_mpeg12_vlc_dc_lum_code_reversed[12];
     uint16_t ff_mpeg12_vlc_dc_chroma_code_reversed[12];
-    int i;
 
     /* Exactly the same as MPEG-2, except little-endian. */
     reverse_code(ff_mpeg12_vlc_dc_lum_code,
@@ -598,10 +597,6 @@ static av_cold void speedhq_static_init(void)
                        ff_mpeg12_vlc_dc_chroma_bits, 1, 1,
                        ff_mpeg12_vlc_dc_chroma_code_reversed, 2, 2, 514);
 
-    /* Reverse the AC VLC, because INIT_VLC_LE wants it in that order. */
-    for (i = 0; i < FF_ARRAY_ELEMS(speedhq_vlc); ++i) {
-        speedhq_vlc[i][0] = reverse(speedhq_vlc[i][0], speedhq_vlc[i][1]);
-    }
     ff_rl_init(&ff_rl_speedhq, ff_speedhq_static_rl_table_store);
     INIT_2D_VLC_RL(ff_rl_speedhq, 674, INIT_VLC_LE);
 
-- 
2.19.0