[FFmpeg-trac] #5017(avformat:open): av_seek_frame on MXF failed to seek with latest ffmpeg

FFmpeg trac at avcodec.org
Sat Nov 28 02:52:21 CET 2015


#5017: av_seek_frame on MXF failed to seek with latest ffmpeg
-------------------------------------+------------------------------------
             Reporter:  verem        |                    Owner:  cus
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avformat
              Version:  unspecified  |               Resolution:
             Keywords:  regression   |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  1            |
-------------------------------------+------------------------------------
Changes (by cus):

 * status:  reopened => open
 * reproduced:  0 => 1
 * owner:   => cus
 * priority:  normal => important
 * keywords:   => regression
 * analyzed:  0 => 1


Comment:

 You are right, since the index table was changed to presentation order,
 seeking before the first keyframe does not work...

 Mpeg video created by ffmpeg has no such problems, because they start with
 a keyframe in both presentation and storage order, but "real" XDCAM mxf
 files usually start with two B frames in presentation order...

 I will send a patch soon to ffmpeg-devel which should fix this.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5017#comment:8>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list