diff options
Diffstat (limited to 'libswresample/dither.c')
| -rw-r--r-- | libswresample/dither.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libswresample/dither.c b/libswresample/dither.c index 4e39cceb0d..663e2007ba 100644 --- a/libswresample/dither.c +++ b/libswresample/dither.c @@ -40,6 +40,11 @@ void swri_get_dither(void *dst, int len, unsigned seed, enum AVSampleFormat out_ switch(method){ case SWR_DITHER_RECTANGULAR: v= ((double)seed) / UINT_MAX - 0.5; break; + case SWR_DITHER_TRIANGULAR : + v = ((double)seed) / UINT_MAX; + seed = seed*1664525 + 1013904223; + v-= ((double)seed) / UINT_MAX; + break; default: av_assert0(0); } |