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  • ffmpeg is failing to convert mov files from iPhone 4

    11 octobre 2014, par skat

    I’m having issue with converting mov files from iPhone 4.

    Running this command :

    I, [2014-09-15T03:48:33.245231 #9676]  INFO -- : Running transcoding...
    
ffmpeg -y -i /Users/lun/client/bookagoo/public/uploads/5405e9b0486f75a36c100000/video/1410727644xqxzdoxf-IMG_0040_1_.MOV -ss 5 -vframes 1 -f image2 /Users/lun/client/bookagoo/public/uploads/5405e9b0486f75a36c100000/video/1410727644xqxzdoxf-IMG_0040_1_-edited.jpg
    

    
E, [2014-09-15T03:48:33.321367 #9676] ERROR -- : Failed encoding...
    
ffmpeg -y -i /Users/lun/client/bookagoo/public/uploads/5405e9b0486f75a36c100000/video  /1410727644xqxzdoxf-IMG_0040_1_.MOV -ss 5 -vframes 1 -f image2 /Users/lun/client/bookagoo/public/uploads/5405e9b0486f75a36c100000/video/1410727644xqxzdoxf-IMG_0040_1_-edited.jpg

    My ffmpeg gives me errors like this :

    FFMPEG::Error: Failed encoding.Errors: no output file created. Full output: ffmpeg version 2.3.1 Copyright (c) 2000-2014 the FFmpeg developers
    
built on Aug 20 2014 02:23:29 with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
    
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.3.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libtheora --enable-libvorbis --enable-libvpx
    
libavutil      52. 92.100 / 52. 92.100
    
libavcodec     55. 69.100 / 55. 69.100
    
libavformat    55. 48.100 / 55. 48.100
    
libavdevice    55. 13.102 / 55. 13.102
    
libavfilter     4. 11.100 /  4. 11.100
    
libavresample   1.  3.  0 /  1.  3.  0
    
libswscale      2.  6.100 /  2.  6.100
    
libswresample   0. 19.100 /  0. 19.100
    
libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/lun/client/bookagoo/public/uploads/5405e9b0486f75a36c100000/video/1410641311nyv99k1j-IMG_0040_1_.MOV':
    
Metadata:
    
  major_brand     : qt
    
  minor_version   : 0
    
  compatible_brands: qt
    
creation_time   : 2014-07-20 09:47:08
    
model           : iPhone 4
    
model-rus       : iPhone 4
    
encoder         : 7.0.4
    
encoder-rus     : 7.0.4
    
date            : 2014-07-20T13:47:08+0400
    
date-rus        : 2014-07-20T13:47:08+0400
    
make            : Apple
    
make-rus        : Apple
    
Duration: 00:00:01.84, start: 0.000000, bitrate: 827 kb/s
    
  Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 742 kb/s, 23.98 fps, 23.98 tbr, 600 tbn, 1200 tbc (default)
    
Metadata:
    
  rotate          : 90
    
  creation_time   : 2014-07-20 09:47:08
    
  handler_name    : Core Media Data Handler
    
  encoder         : H.264
    
Side data:
    
  displaymatrix: rotation of -90.00 degrees
    
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
    
Metadata:
    
  creation_time   : 2014-07-20 09:47:08
    
  handler_name    : Core Media Data Handler
    
[swscaler @ 0x7fe1e9800600] deprecated pixel format used, make sure you did set range correctly
    
Output #0, image2, to '/Users/lun/client/bookagoo/public/uploads/5405e9b0486f75a36c100000/video/1410641311nyv99k1j-IMG_0040_1_-edited.jpg':
    
Metadata:
    
major_brand     : qt
    
minor_version   : 0
    
compatible_brands: qt
    
make-rus        : Apple
    
model           : iPhone 4
    
model-rus       : iPhone 4
    
make            : Apple
    
encoder         : Lavf55.48.100
    
date            : 2014-07-20T13:47:08+0400
    
date-rus        : 2014-07-20T13:47:08+0400
    
Stream #0:0(und): Video: mjpeg, yuvj420p, 480x360, q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)
    
Metadata:
    
  rotate          : 90
    
  creation_time   : 2014-07-20 09:47:08
    
  handler_name    : Core Media Data Handler
    
  encoder         : Lavc55.69.100 mjpeg
    
Stream mapping:
    
Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
    
Press [q] to stop, [?] for help
    
frame=    0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A
    
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

    It’s only happening for mov files. There are couple of tricky places it looks like it’s trying to take screenshot from a video.

    Maybe anyone witnessed anything similar and can give me a tip ?

  • lavu : Add av_gettime_relative

    22 octobre 2014, par Martin Storsjö
    lavu : Add av_gettime_relative

    Since av_gettime() is used in a number of places where actual
    
real time clock is required, the monotonic clock introduced in
    
ebef9f5a5 would have consequences that are hard to handle. Instead
    
split it into a separate function that can be used in the cases
    
where only relative time is desired.
    

    On platform where no monotonic clock is available, the difference
    
between the two av_gettime functions is not clear, and one could
    
mistakenly use the relative clock where an absolute one is
    
required. Therefore add an offset, to make it evident that the
    
time returned from av_gettime_relative never is actual current
    
real time, even though it is based on av_gettime.
    

    Based on a patch by Olivier Langlois.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] doc/APIchanges
    • [DBH] libavutil/time.c
    • [DBH] libavutil/time.h
    • [DBH] libavutil/version.h

  • lavf : Use av_gettime_relative

    22 octobre 2014, par Martin Storsjö
    lavf : Use av_gettime_relative

    The ones left using av_gettime are NTP timestamps (for RTCP,
    
which is specified to send the actual current realtime clock
    
in RTCP SR packets), and the NUT muxer timestamper, which is
    
documented as using wallclock time.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] libavformat/hls.c
    • [DBH] libavformat/hlsproto.c
    • [DBH] libavformat/rtpdec.c
    • [DBH] libavformat/rtsp.c
    • [DBH] libavformat/rtspdec.c
    • [DBH] libavformat/sapenc.c

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