[FFmpeg-trac] #10393(undetermined:new): unexpected PTSs inside avcodec_send_frame

[FFmpeg]

#10393: unexpected PTSs inside avcodec_send_frame
-------------------------------------+-------------------------------------
             Reporter:  markshw      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 It is observed that PTS on frame that is passed to avcodec_send_frame is
 not as expected, when ffmpeg is invoked with parameters to copy timebase
 from input to output.
 The behavior changed from 5.1 and can be seen with 6.0 when ffmpeg is
 invoked with filter_complex. On ffmpeg 6.0 when invoked with -vf or
 without filters it works as expected

 To reproduce, please apply the attached patch (or simply add logging in
 avcodec_send_frame for the frame->pts)

 **Command line examples:**
 works as expected:
 ./ffmpeg -y -i ~/Downloads/test.mp4 -vsync vfr -copyts -enc_time_base -1
 -vf "scale=1280:720" -c:v libx264 ~/output.mp4 -loglevel info
 logged PTSs are 0, 512,1024,1536,2048,...

 UNEXPECTED timestamps
 ./ffmpeg -y -i ~/Downloads/test.mp4 -vsync vfr -copyts -enc_time_base -1
 -filter_complex "scale=1280:720" -c:v libx264 ~/output.mp4 -loglevel info
 logged PTSs are
 0,1,2,3,4,5....
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10393>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker