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| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-11-16 14:56:13 +0100 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-12-08 17:51:47 +0100 |
| commit | 90c4958640cb0a4eb495a16e01926d379c1ceaed (patch) | |
| tree | 3d87bb98daa9ee59e2e237e2d5fbef69d9201a1b | |
| parent | 0ecd6879b33d6af11c28ff2387c43d2e151e8831 (diff) | |
| download | ffmpeg-90c4958640cb0a4eb495a16e01926d379c1ceaed.tar.gz | |
avcodec/mv30: Reduce the size of tables used to initialize VLCs
By switching from ff_init_vlc_sparse() to ff_init_vlc_from_lengths() one
can remove the array of codes of type uint16_t here; given that the
symbols are the default ones (0,1,2,...), no explicit symbols table
needs to be added.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
| -rw-r--r-- | libavcodec/mv30.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/libavcodec/mv30.c b/libavcodec/mv30.c index a361873c80..2efc96bbf9 100644 --- a/libavcodec/mv30.c +++ b/libavcodec/mv30.c @@ -35,6 +35,8 @@ #include "internal.h" #include "aandcttab.h" +#define CBP_VLC_BITS 9 + typedef struct MV30Context { GetBitContext gb; @@ -651,18 +653,14 @@ static int decode_frame(AVCodecContext *avctx, void *data, return avpkt->size; } -static const uint16_t cbp_codes[] = { - 0, 1, 4, 5, 6, 0xE, 0x1E, 0x3E, 0x7E, 0xFE, 0x1FE, 0x1FF, -}; - static const uint8_t cbp_bits[] = { 2, 2, 3, 3, 3, 4, 5, 6, 7, 8, 9, 9, }; static av_cold void init_static_data(void) { - INIT_VLC_SPARSE_STATIC(&cbp_tab, 9, FF_ARRAY_ELEMS(cbp_bits), - cbp_bits, 1, 1, cbp_codes, 2, 2, NULL, 0, 0, 512); + INIT_VLC_STATIC_FROM_LENGTHS(&cbp_tab, CBP_VLC_BITS, FF_ARRAY_ELEMS(cbp_bits), + cbp_bits, 1, NULL, 0, 0, 0, 0, 1 << CBP_VLC_BITS); } static av_cold int decode_init(AVCodecContext *avctx) |