Juris Malinens[ffmpeg]

#cmd which fails
# /usr/local/bin/ffmpeg -i "a.mp4" -an -ss 3 -t 00:00:01 -r 1  -threads 1 -y "a.%d.jpg"
ffmpeg version git-2012-07-02-c855ce2 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jul  2 2012 17:01:05 with gcc 4.4.3
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
  libavutil      51. 63.100 / 51. 63.100
  libavcodec     54. 31.100 / 54. 31.100
  libavformat    54. 14.100 / 54. 14.100
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     3.  0.100 /  3.  0.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x27ab120] max_analyze_duration 5000000 reached at 5015467
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x27ab120] decoding for stream 1 failed
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'a.mp4':
  Metadata:
    major_brand     : f4v
    minor_version   : 0
    compatible_brands: isommp42m4v
    creation_time   : 2013-02-20 18:25:32
  Duration: 02:26:15.10, start: 0.000000, bitrate: 575 kb/s
    Stream #0:0(eng): Audio: mp3 (.mp3 / 0x33706D2E), 44100 Hz, mono, s16, 96 kb/s
    Metadata:
      creation_time   : 2013-02-20 18:25:32
      handler_name    : WowzaMediaServerPro
    Stream #0:1(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 474 kb/s, 23.71 fps, 25 tbr, 90k tbn, 50 tbc
    Metadata:
      creation_time   : 2013-02-20 18:25:32
      handler_name    : WowzaMediaServerPro
[graph 0 input from stream 0:1 @ 0x29ea6c0] w:640 h:360 pixfmt:yuv420p tb:1/90000 fr:25/1 sar:1/1 sws_param:flags=2
[output stream 0:0 @ 0x29e0dc0] No opaque field provided
[auto-inserted scaler 0 @ 0x29da7c0] w:640 h:360 fmt:yuv420p sar:1/1 -> w:640 h:360 fmt:yuvj420p sar:1/1 flags:0x4
Output #0, image2, to 'a.%d.jpg':
  Metadata:
    major_brand     : f4v
    minor_version   : 0
    compatible_brands: isommp42m4v
    encoder         : Lavf54.14.100
    Stream #0:0(eng): Video: mjpeg, yuvj420p, 640x360 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 1 tbc
    Metadata:
      creation_time   : 2013-02-20 18:25:32
      handler_name    : WowzaMediaServerPro
Stream mapping:
  Stream #0:1 -> #0:0 (h264 -> mjpeg)
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=   0.0kbits/s
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead -nan%
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)



#cmd which succeeds
# /usr/local/bin/ffmpeg -i "a.mp4" -an -ss 10 -t 1 -r 1  -threads 1 -y "a.%d.jpg"
ffmpeg version git-2012-07-02-c855ce2 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jul  2 2012 17:01:05 with gcc 4.4.3
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
  libavutil      51. 63.100 / 51. 63.100
  libavcodec     54. 31.100 / 54. 31.100
  libavformat    54. 14.100 / 54. 14.100
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     3.  0.100 /  3.  0.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x2928120] max_analyze_duration 5000000 reached at 5015467
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x2928120] decoding for stream 1 failed
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'a.mp4':
  Metadata:
    major_brand     : f4v
    minor_version   : 0
    compatible_brands: isommp42m4v
    creation_time   : 2013-02-20 18:25:32
  Duration: 02:26:15.10, start: 0.000000, bitrate: 575 kb/s
    Stream #0:0(eng): Audio: mp3 (.mp3 / 0x33706D2E), 44100 Hz, mono, s16, 96 kb/s
    Metadata:
      creation_time   : 2013-02-20 18:25:32
      handler_name    : WowzaMediaServerPro
    Stream #0:1(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 474 kb/s, 23.71 fps, 25 tbr, 90k tbn, 50 tbc
    Metadata:
      creation_time   : 2013-02-20 18:25:32
      handler_name    : WowzaMediaServerPro
[graph 0 input from stream 0:1 @ 0x2b676c0] w:640 h:360 pixfmt:yuv420p tb:1/90000 fr:25/1 sar:1/1 sws_param:flags=2
[output stream 0:0 @ 0x2b5ddc0] No opaque field provided
[auto-inserted scaler 0 @ 0x2b577c0] w:640 h:360 fmt:yuv420p sar:1/1 -> w:640 h:360 fmt:yuvj420p sar:1/1 flags:0x4
Output #0, image2, to 'a.%d.jpg':
  Metadata:
    major_brand     : f4v
    minor_version   : 0
    compatible_brands: isommp42m4v
    encoder         : Lavf54.14.100
    Stream #0:0(eng): Video: mjpeg, yuvj420p, 640x360 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 1 tbc
    Metadata:
      creation_time   : 2013-02-20 18:25:32
      handler_name    : WowzaMediaServerPro
Stream mapping:
  Stream #0:1 -> #0:0 (h264 -> mjpeg)
Press [q] to stop, [?] for help
frame=    4 fps=0.0 q=1.6 Lsize=       0kB time=00:00:04.00 bitrate=   0.0kbits/s dup=0 drop=32
video:89kB audio:0kB subtitle:0 global headers:0kB muxing overhead -100.000000%