diff options
Diffstat (limited to 'libavcodec/dv.c')
| -rw-r--r-- | libavcodec/dv.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/libavcodec/dv.c b/libavcodec/dv.c index 7c1ec6e0b2..8a4cac859e 100644 --- a/libavcodec/dv.c +++ b/libavcodec/dv.c @@ -48,9 +48,6 @@ #include "put_bits.h" #include "simple_idct.h" -/* XXX: also include quantization */ -RL_VLC_ELEM ff_dv_rl_vlc[1664]; - static inline void dv_calc_mb_coordinates(const AVDVProfile *d, int chan, int seq, int slot, uint16_t *tbl) { @@ -198,65 +195,9 @@ int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const AVDVProfile *d) av_cold int ff_dvvideo_init(AVCodecContext *avctx) { DVVideoContext *s = avctx->priv_data; - static int done = 0; - int i, j; - - if (!done) { - VLC_TYPE vlc_buf[FF_ARRAY_ELEMS(ff_dv_rl_vlc)][2] = { 0 }; - VLC dv_vlc = { .table = vlc_buf, .table_allocated = FF_ARRAY_ELEMS(vlc_buf) }; - uint16_t new_dv_vlc_bits[NB_DV_VLC * 2]; - uint8_t new_dv_vlc_len[NB_DV_VLC * 2]; - uint8_t new_dv_vlc_run[NB_DV_VLC * 2]; - int16_t new_dv_vlc_level[NB_DV_VLC * 2]; - - done = 1; - - /* it's faster to include sign bit in a generic VLC parsing scheme */ - for (i = 0, j = 0; i < NB_DV_VLC; i++, j++) { - new_dv_vlc_bits[j] = ff_dv_vlc_bits[i]; - new_dv_vlc_len[j] = ff_dv_vlc_len[i]; - new_dv_vlc_run[j] = ff_dv_vlc_run[i]; - new_dv_vlc_level[j] = ff_dv_vlc_level[i]; - - if (ff_dv_vlc_level[i]) { - new_dv_vlc_bits[j] <<= 1; - new_dv_vlc_len[j]++; - - j++; - new_dv_vlc_bits[j] = (ff_dv_vlc_bits[i] << 1) | 1; - new_dv_vlc_len[j] = ff_dv_vlc_len[i] + 1; - new_dv_vlc_run[j] = ff_dv_vlc_run[i]; - new_dv_vlc_level[j] = -ff_dv_vlc_level[i]; - } - } - - /* NOTE: as a trick, we use the fact the no codes are unused - * to accelerate the parsing of partial codes */ - init_vlc(&dv_vlc, TEX_VLC_BITS, j, new_dv_vlc_len, - 1, 1, new_dv_vlc_bits, 2, 2, INIT_VLC_USE_NEW_STATIC); - av_assert1(dv_vlc.table_size == 1664); - - for (i = 0; i < dv_vlc.table_size; i++) { - int code = dv_vlc.table[i][0]; - int len = dv_vlc.table[i][1]; - int level, run; - - if (len < 0) { // more bits needed - run = 0; - level = code; - } else { - run = new_dv_vlc_run[code] + 1; - level = new_dv_vlc_level[code]; - } - ff_dv_rl_vlc[i].len = len; - ff_dv_rl_vlc[i].level = level; - ff_dv_rl_vlc[i].run = run; - } - } s->avctx = avctx; avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT; return 0; } - |