[FFmpeg-devel] [PATCH 1/2] avcodec/parser: fix fetch_timestamp in a scenario with unaligned packets

[Nicolas Gaullier <nicolas.gaullier@cji.paris>]

Fix fetch_timestamp when the frame start is in a previous packet.

Signed-off-by: Nicolas Gaullier <nicolas.gaullier@cji.paris>
---
 libavcodec/parser.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavcodec/parser.c b/libavcodec/parser.c
index efc28b8918..853b5323b0 100644
--- a/libavcodec/parser.c
+++ b/libavcodec/parser.c
@@ -153,11 +153,11 @@ int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx,
     }
 
     if (s->fetch_timestamp) {
-        s->fetch_timestamp = 0;
         s->last_pts        = s->pts;
         s->last_dts        = s->dts;
         s->last_pos        = s->pos;
-        ff_fetch_timestamp(s, 0, 0, 0);
+        ff_fetch_timestamp(s, FFMIN(s->fetch_timestamp, 0), 0, 0);
+        s->fetch_timestamp = 0;
     }
     /* WARNING: the returned index can be negative */
     index = s->parser->parser_parse(s, avctx, (const uint8_t **) poutbuf,
@@ -179,7 +179,7 @@ int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx,
 
         /* offset of the next frame */
         s->next_frame_offset = s->cur_offset + index;
-        s->fetch_timestamp   = 1;
+        s->fetch_timestamp   = index >= 0 ? 1 : index;
     } else {
         /* Don't return a pointer to dummy_buf. */
         *poutbuf = NULL;
-- 
2.30.2

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