[FFmpeg-devel] [PATCH 1/3] avcodec/avs3_parser: set has_b_frames properly

[Zhao Zhili]

has_b_frames should be output_reorder_delay field in AVS3 sequence
header and larger than 1. The parser implementation doesn't parse
that field. Decoder can set has_b_frames properly, so use FFMAX
here to avoid resetting has_b_frames from output_reorder_delay to 1.
---
 libavcodec/avs3_parser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/avs3_parser.c b/libavcodec/avs3_parser.c
index d04d96a03a..0d2e940d1e 100644
--- a/libavcodec/avs3_parser.c
+++ b/libavcodec/avs3_parser.c
@@ -114,7 +114,7 @@ static void parse_avs3_nal_units(AVCodecParserContext *s, const uint8_t *buf,
             //            bitrate_high(12)
             skip_bits(&gb, 32);
 
-            avctx->has_b_frames = !get_bits(&gb, 1);
+            avctx->has_b_frames = FFMAX(avctx->has_b_frames, !get_bits(&gb, 1));
 
             avctx->framerate.num = avctx->time_base.den = ff_avs3_frame_rate_tab[ratecode].num;
             avctx->framerate.den = avctx->time_base.num = ff_avs3_frame_rate_tab[ratecode].den;
-- 
2.35.3