[FFmpeg-devel] [PATCH] ffmpeg.c: Fallback to duration_dts, when duration_pts can't be determined.

Sasi Inguva isasi at google.com
Tue Oct 10 20:36:58 EEST 2017


This is required for FLV files, for which duration_pts comes out to be zero.

Signed-off-by: Sasi Inguva <isasi at google.com>
---
 fftools/ffmpeg.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 6d64bc1043..3ee31473dc 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -2665,8 +2665,13 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eo
                     ist->next_dts = AV_NOPTS_VALUE;
             }
 
-            if (got_output)
-                ist->next_pts += av_rescale_q(duration_pts, ist->st->time_base, AV_TIME_BASE_Q);
+            if (got_output) {
+                if (duration_pts > 0) {
+                    ist->next_pts += av_rescale_q(duration_pts, ist->st->time_base, AV_TIME_BASE_Q);
+                } else {
+                    ist->next_pts += duration_dts;
+                }
+            }
             break;
         case AVMEDIA_TYPE_SUBTITLE:
             if (repeating)
-- 
2.14.2.920.gcf0c67979c-goog



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