[FFmpeg-trac] #5000(undetermined:reopened): Skipping frames for GoPro videos recorder with Ambarella

FFmpeg trac at avcodec.org
Mon Nov 16 06:16:57 CET 2015


#5000: Skipping frames for GoPro videos recorder with Ambarella
-------------------------------------+-------------------------------------
             Reporter:  Den-ffmpeg   |                    Owner:
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by Den-ffmpeg):

 Sorry for incomprehension, done.
 Command line:
 {{{
 ffmpeg -i "D:\\videos\\h264_gopro_ambarella.mp4" -vcodec h264
 "D:\\videos\\lags_on_output_video.avi"
 }}}
 Full log in attach

 I see that the output video is lagging. If you open both videos, for
 example, in QuickTime, you will see the difference. On output video is
 more shaking, that effect is created by the fact, that about 25% frames
 were skipped. On original file the video is more smooth.

 No, there is no difference by playing it with VLC, MPlayer or FFplay (also
 with Media Player Classic). It is explained that these players use the
 same ffmpeg h264 decoder. But on QuickTime or Windows Media Player the
 difference is obvious.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5000#comment:7>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list