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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-19 20:06:58 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-19 20:42:54 +0100 |
| commit | 2d2b41d1699646e824418fea6e6cb2a842654875 (patch) | |
| tree | c28cb224ac48f4abb2af3f8de6a4d89f2f0ebad0 /libavcodec/ffv1enc.c | |
| parent | ebe1ca01d15372b53e06b919845c480c105fdebc (diff) | |
avcodec/ffv1enc: Fix 2 pass mode with the default rc table
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/ffv1enc.c')
| -rw-r--r-- | libavcodec/ffv1enc.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c index e4d5ac6708..3830bd46f8 100644 --- a/libavcodec/ffv1enc.c +++ b/libavcodec/ffv1enc.c @@ -155,6 +155,10 @@ static void find_best_state(uint8_t best_state[256][256], double occ[256] = { 0 }; double len = 0; occ[j] = 1.0; + + if (!one_state[j]) + continue; + for (k = 0; k < 256; k++) { double newocc[256] = { 0 }; for (m = 1; m < 256; m++) @@ -821,9 +825,15 @@ FF_ENABLE_DEPRECATION_WARNINGS return AVERROR(EINVAL); } - if (s->ac == AC_RANGE_CUSTOM_TAB) + if (s->ac == AC_RANGE_CUSTOM_TAB) { for (i = 1; i < 256; i++) s->state_transition[i] = ver2_state[i]; + } else { + RangeCoder c; + ff_build_rac_states(&c, 0.05 * (1LL << 32), 256 - 8); + for (i = 1; i < 256; i++) + s->state_transition[i] = c.one_state[i]; + } for (i = 0; i < 256; i++) { s->quant_table_count = 2; @@ -934,7 +944,8 @@ FF_ENABLE_DEPRECATION_WARNINGS if (p[0] == 0) break; } - sort_stt(s, s->state_transition); + if (s->ac == AC_RANGE_CUSTOM_TAB) + sort_stt(s, s->state_transition); find_best_state(best_state, s->state_transition); |