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https://gitee.com/openharmony/third_party_ffmpeg
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Remove redundant checks against MIN_CACHE_BITS
With the removal of the libmpeg2 bitstream reader, MIN_CACHE_BITS
is always >= 25, so tests against smaller values can be removed.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit f162e988aa)
This commit is contained in:
Mans Rullgard
Michael Niedermayer
parent
a4bff12cdd
commit
91d51ee4b5
@ -1062,9 +1062,6 @@ static int decode_spectrum_and_dequant(AACContext *ac, float coef[1024],
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UPDATE_CACHE(re, gb);
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GET_VLC(code, re, gb, vlc_tab, 8, 2);
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#if MIN_CACHE_BITS < 20
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UPDATE_CACHE(re, gb);
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#endif
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cb_idx = cb_vector_idx[code];
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nnz = cb_idx >> 8 & 15;
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bits = SHOW_UBITS(re, gb, nnz) << (32-nnz);
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@ -1157,12 +1154,7 @@ static int decode_spectrum_and_dequant(AACContext *ac, float coef[1024],
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return -1;
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}
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#if MIN_CACHE_BITS < 21
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LAST_SKIP_BITS(re, gb, b + 1);
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UPDATE_CACHE(re, gb);
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#else
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SKIP_BITS(re, gb, b + 1);
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#endif
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b += 4;
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n = (1 << b) + SHOW_UBITS(re, gb, b);
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LAST_SKIP_BITS(re, gb, b);
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@ -718,9 +718,6 @@ static inline int mpeg1_decode_block_inter(MpegEncContext *s,
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if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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goto end;
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}
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#if MIN_CACHE_BITS < 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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/* now quantify & encode AC coefficients */
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for(;;) {
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GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);
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@ -760,14 +757,9 @@ static inline int mpeg1_decode_block_inter(MpegEncContext *s,
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}
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block[j] = level;
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#if MIN_CACHE_BITS < 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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break;
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#if MIN_CACHE_BITS >= 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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}
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end:
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LAST_SKIP_BITS(re, &s->gb, 2);
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@ -800,9 +792,6 @@ static inline int mpeg1_fast_decode_block_inter(MpegEncContext *s, DCTELEM *bloc
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if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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goto end;
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}
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#if MIN_CACHE_BITS < 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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/* now quantify & encode AC coefficients */
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for(;;) {
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@ -839,14 +828,9 @@ static inline int mpeg1_fast_decode_block_inter(MpegEncContext *s, DCTELEM *bloc
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}
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block[j] = level;
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#if MIN_CACHE_BITS < 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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break;
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#if MIN_CACHE_BITS >= 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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}
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end:
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LAST_SKIP_BITS(re, &s->gb, 2);
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@ -891,9 +875,6 @@ static inline int mpeg2_decode_block_non_intra(MpegEncContext *s,
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if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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goto end;
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}
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#if MIN_CACHE_BITS < 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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/* now quantify & encode AC coefficients */
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for(;;) {
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@ -927,14 +908,9 @@ static inline int mpeg2_decode_block_non_intra(MpegEncContext *s,
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mismatch ^= level;
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block[j] = level;
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#if MIN_CACHE_BITS < 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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break;
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#if MIN_CACHE_BITS >= 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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}
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end:
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LAST_SKIP_BITS(re, &s->gb, 2);
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@ -969,9 +945,6 @@ static inline int mpeg2_fast_decode_block_non_intra(MpegEncContext *s,
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if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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goto end;
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}
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#if MIN_CACHE_BITS < 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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/* now quantify & encode AC coefficients */
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for(;;) {
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@ -1000,14 +973,9 @@ static inline int mpeg2_fast_decode_block_non_intra(MpegEncContext *s,
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}
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block[j] = level;
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#if MIN_CACHE_BITS < 19
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UPDATE_CACHE(re, &s->gb);
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#endif
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if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
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break;
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#if MIN_CACHE_BITS >=19
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UPDATE_CACHE(re, &s->gb);
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#endif
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}
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end:
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LAST_SKIP_BITS(re, &s->gb, 2);
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@ -1023,12 +1023,7 @@ static inline int mpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
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if(last) i+=192;
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} else {
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/* second escape */
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#if MIN_CACHE_BITS < 20
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LAST_SKIP_BITS(re, &s->gb, 2);
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UPDATE_CACHE(re, &s->gb);
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#else
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SKIP_BITS(re, &s->gb, 2);
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#endif
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GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2, 1);
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i+= run + rl->max_run[run>>7][level/qmul] +1; //FIXME opt indexing
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level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
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@ -1036,12 +1031,7 @@ static inline int mpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
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}
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} else {
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/* first escape */
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#if MIN_CACHE_BITS < 19
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LAST_SKIP_BITS(re, &s->gb, 1);
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UPDATE_CACHE(re, &s->gb);
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#else
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SKIP_BITS(re, &s->gb, 1);
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#endif
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GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2, 1);
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i+= run;
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level = level + rl->max_level[run>>7][(run-1)&63] * qmul;//FIXME opt indexing
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@ -1797,12 +1797,7 @@ int ff_msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
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#endif
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} else {
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/* second escape */
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#if MIN_CACHE_BITS < 23
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LAST_SKIP_BITS(re, &s->gb, 2);
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UPDATE_CACHE(re, &s->gb);
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#else
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SKIP_BITS(re, &s->gb, 2);
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#endif
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GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2, 1);
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i+= run + rl->max_run[run>>7][level/qmul] + run_diff; //FIXME opt indexing
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level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
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@ -1816,12 +1811,7 @@ int ff_msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
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}
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} else {
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/* first escape */
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#if MIN_CACHE_BITS < 22
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LAST_SKIP_BITS(re, &s->gb, 1);
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UPDATE_CACHE(re, &s->gb);
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#else
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SKIP_BITS(re, &s->gb, 1);
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#endif
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GET_RL_VLC(level, run, re, &s->gb, rl_vlc, TEX_VLC_BITS, 2, 1);
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i+= run;
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level = level + rl->max_level[run>>7][(run-1)&63] * qmul;//FIXME opt indexing
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