[FFmpeg-trac] #6284(ffmpeg:new): FFMPEG doesn't output video with MP4 file that has broken frames

[FFmpeg]

#6284: FFMPEG doesn't output video with MP4 file that has broken frames
-------------------------------------+-------------------------------------
             Reporter:  mrcatmann    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  ffmpeg       |                  Version:
             Keywords:  mp4 broken   |  unspecified
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
 I'm trying to re-encode a MP4 video with FFMPEG  version
 3.2.4-1~14.04.york1 (the original video is playable in all Windows players
 like WMP or MPC):
 {{{
 ffmpeg -re -i /home/clip.mp4 -y -preset ultrafast -crf 35 -c:a aac
 -threads 2 /home/conv1.mp4
 }}}

 But the converter freezes at the first frame, there are many such
 identical strings:
 {{{
 frame=    0 fps=0.0 q=0.0 Lsize=
 }}}
 So the output has no video, just an audio track.
 And FFProbe says that it seems the video container normally:
 {{{
 ffprobe version git-2017-01-22-f1214ad Copyright (c) 2007-2017 the FFmpeg
 developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
 configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg
 --mandir=/usr/share/man --enable-avresample --disable-debug --enable-
 nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb
 --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb
 --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264
 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-
 libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-
 libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-
 libvidstab --enable-libwavpack --enable-nvenc
 libavutil      55. 44.100 / 55. 44.100
 libavcodec     57. 75.100 / 57. 75.100
 libavformat    57. 63.100 / 57. 63.100
 libavdevice    57.  2.100 / 57.  2.100
 libavfilter     6. 69.100 /  6. 69.100
 libavresample   3.  2.  0 /  3.  2.  0
 libswscale      4.  3.101 /  4.  3.101
 libswresample   2.  4.100 /  2.  4.100
 libpostproc    54.  2.100 / 54.  2.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/clip.mp4':
 Metadata:
 major_brand     : dash
 minor_version   : 0
 compatible_brands: iso6avc1mp41
 creation_time   : 2016-03-17T09:39:29.000000Z
 Duration: 00:04:18.46, start: 0.000000, bitrate: 3109 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1440x1080 [SAR 1:1 DAR 4:3], 2981 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
 (default)
 Metadata:
   creation_time   : 2016-03-17T09:39:29.000000Z
   handler_name    : VideoHandler
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo,
 fltp, 125 kb/s (default)
 Metadata:
   creation_time   : 2016-03-17T09:36:59.000000Z
   handler_name    : SoundHandler
 }}}

 Tried converting the video to different formats - still same results, no
 video.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6284>
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