[FFmpeg-trac] #8037(avformat:open): Incorrect HLS segment duration after 64350th frame with -hls_init_time

FFmpeg trac at avcodec.org
Sun Jul 28 22:10:49 EEST 2019


#8037: Incorrect HLS segment duration after 64350th frame with -hls_init_time
-------------------------------------+-------------------------------------
             Reporter:  DusanBrejka  |                    Owner:  stevenliu
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  hls mpegts   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by stevenliu):

 the simple test method to check the logic, add an log after the patch:

 {{{
 diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
 index 2ade6723f9..d037fe0a46 100644
 --- a/libavformat/hlsenc.c
 +++ b/libavformat/hlsenc.c
 @@ -2301,8 +2301,9 @@ static int hls_write_packet(AVFormatContext *s,
 AVPacket *pkt)

      if (vs->sequence - vs->nb_entries > hls->start_sequence &&
 hls->init_time > 0) {
          /* reset end_pts, hls->recording_time at end of the init hls list
 */
 -        int init_list_dur = hls->init_time * vs->nb_entries *
 AV_TIME_BASE;
 -        int after_init_list_dur = (vs->sequence - hls->start_sequence -
 vs->nb_entries ) * (hls->time * AV_TIME_BASE);
 +        int64_t init_list_dur = hls->init_time * vs->nb_entries *
 AV_TIME_BASE;
 +        int64_t after_init_list_dur = (vs->sequence - hls->start_sequence
 - vs->nb_entries ) * (hls->time * AV_TIME_BASE);
 +        av_log(s, AV_LOG_ERROR, "Test for blablabla\n");
          hls->recording_time = hls->time * AV_TIME_BASE;
          end_pts = init_list_dur + after_init_list_dur ;
      }
 }}}

 check it have use the newest libavformat lib.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8037#comment:17>
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