[FFmpeg-devel] [PATCH 08/11] avformat/mux: Restore original ts in write_packet on error

[sebechlebskyjan at gmail.com]

From: Jan Sebechlebsky <sebechlebskyjan at gmail.com>

Restore original timestamps in write_packet() if the
actual write operation was not successfull. This allows
to pass the same packet to nonblocking muxer repeatedly
without corrupting the timestamps.

Signed-off-by: Jan Sebechlebsky <sebechlebskyjan at gmail.com>
---
 libavformat/mux.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libavformat/mux.c b/libavformat/mux.c
index 888a9f1..ef4720a 100644
--- a/libavformat/mux.c
+++ b/libavformat/mux.c
@@ -657,6 +657,10 @@ FF_ENABLE_DEPRECATION_WARNINGS
 static int write_packet(AVFormatContext *s, AVPacket *pkt)
 {
     int ret, did_split;
+    int64_t pts_backup, dts_backup;
+
+    pts_backup = pkt->pts;
+    dts_backup = pkt->dts;
 
     if (s->output_ts_offset) {
         AVStream *st = s->streams[pkt->stream_index];
@@ -743,6 +747,11 @@ fail:
     if (did_split)
         av_packet_merge_side_data(pkt);
 
+    if (ret < 0) {
+        pkt->pts = pts_backup;
+        pkt->dts = dts_backup;
+    }
+
     return ret;
 }
 
-- 
1.9.1