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• Merge commit 'e807491fc6a336e4becc0cbc981274a8fde18aba'

  29 avril 2017, par Clément Bœsch

  Merge commit 'e807491fc6a336e4becc0cbc981274a8fde18aba'
  * commit 'e807491fc6a336e4becc0cbc981274a8fde18aba' :
  
    mpeg12dec : avoid signed overflow in bitrate calculation
  
    mpegvideo_parser : avoid signed overflow in bitrate calculation
  This merge is a noop.
  2017-04-29 12:54:15     @ubitux michaelni : is 740959fdbfbf804ccd8a6e426b1b1ba321fe5cfb enough to fix the overflow fixed in 58405de0951a843765625159402870c1eea3c3b1 ?
  
  2017-04-29 12:55:53     @ubitux same question with e807491fc6a336e4becc0cbc981274a8fde18aba
  
  2017-04-29 13:21:45     michaelni       ubitux, the libav code refered to is wrong for us and i doubt the problem it fixes applies to us.
  
  2017-04-29 13:24:29     @ubitux michaelni : ok, for both commits ?
  
  2017-04-29 13:33:55     michaelni       yes, they do more or less the same thing
  Merged-by : Clément Bœsch <u@pkh.me>
  

• ffmpeg : Using tee with segmenter

  30 avril 2017, par Lev

  I’m trying to use a tee to output my stream into 1min segments and into a file at the same time. Here’s my command :

  ffmpeg -i "rtsp://${cameraIp}:554/axis-media/media.amp?videocodec=h264&resolution=1280x720&fps=15" -c copy -map 0 \
  
  -f tee "[f=ssegment:segment_time=60:segment_format=mp4:reset_timestamps=1:r=15] ${rootPath}/${storeId}-${location}-%03d.mp4 \
  
  | /tmp/${cameraIp}.mkv"

  Individually (without tee) both outputs work fine. So I can either output into segmented files or into a non-segmented file. But with the tee I get this error :

  [stream_segment,ssegment @ 0x217ece0] Failed to open segment ’
  /etc/cida/diagnostics/vid/780801-99-000.mp4’ [tee @ 0x217d820] Slave
  ’[f=ssegment:segment_time=60:segment_format=mp4:reset_timestamps=1:r=15]
  /etc/cida/diagnostics/vid/780801-99-%03d.mp4’ : error writing header :
  No such file or directory

  See full command output below. Any suggestions ?

  ffmpeg version 3.3 Copyright (c) 2000-2017 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. 58.100 / 55. 58.100 libavcodec 57. 89.100 / 57. 89.100 libavformat 57. 71.100 / 57. 71.100 libavdevice 57. 6.100 / 57. 6.100 libavfilter 6. 82.100 / 6. 82.100 libavresample 3. 5. 0 /
  3. 5. 0 libswscale 4. 6.100 / 4. 6.100 libswresample 2. 7.100 / 2. 7.100 libpostproc 54. 5.100 / 54. 5.100 Input #0, rtsp, from ’rtsp ://10.83.245.7:554/axis-media/media.amp ?videocodec=h264&resolution=1280x720&fps=15’ :
  Metadata :
  title : Session streamed with GStreamer
  comment : rtsp-server Duration : N/A, start : 0.080011, bitrate : N/A
  Stream #0:0 : Video : h264 (Main), yuvj420p(pc, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 25 tbr, 90k tbn, 180k tbc
  [stream_segment,ssegment @ 0x217ece0] Failed to open segment ’
  /etc/cida/diagnostics/vid/780801-99-000.mp4’ [tee @ 0x217d820] Slave
  ’[f=ssegment:segment_time=60:segment_format=mp4:reset_timestamps=1:r=15]
  /etc/cida/diagnostics/vid/780801-99-%03d.mp4’ : error writing header :
  No such file or directory [tee @ 0x217d820] Slave muxer #0 failed,
  aborting. Could not write header for output file #0 (incorrect codec
  parameters ?) : No such file or directory Stream mapping : Stream #0:0
  -> #0:0 (copy)
  Last message repeated 1 times

• ffmpeg cut flv but resulting video cannot be processed on youtube

  20 avril 2017, par user1017674

  I am using a simple ffmpeg command to cut some videos.

  The command i ran is

  ffmpeg -i test.flv -ss 0 -to 60 -c copy output.flv

  The output.flv turns out is not processable on youtube, but I am able to play this file locally using a random flv player that I downloaded.

  This is the log when cutting the video.

  The original file test.flv can be found here.
  https://drive.google.com/open?id=0B5eHJIAbpaIYaW95ZlFTMTUzNGc

  The output file output.flv can be found here.
  https://drive.google.com/open?id=0B5eHJIAbpaIYejk5dGJTOEo1UU0

  ./ffmpeg -i test.flv -ss 0 -to 60 -c copy diablo.flv
  
  ffmpeg version 3.3 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
  
    configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --enable-libvidstab --enable-libx265 --disable-doc --arch=x86_64 --enable-runtime-cpudetect
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  Input #0, flv, from 'test.flv':
  
    Metadata:
  
      creator         : Coded
  
      metadatacreator : Yet Another Metadata Injector for FLV - Version 1.9
  
      hasKeyframes    : true
  
      hasVideo        : true
  
      hasAudio        : true
  
      hasMetadata     : true
  
      canSeekToEnd    : true
  
      datasize        : 69602014
  
      videosize       : 63600961
  
      audiosize       : 5917165
  
      lasttimestamp   : 292
  
      lastkeyframetimestamp: 292
  
      lastkeyframelocation: 69603218
  
    Duration: 00:04:51.68, start: 0.080000, bitrate: 1909 kb/s
  
      Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x720, 1742 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc
  
      Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp, 158 kb/s
  
  Output #0, flv, to 'diablo.flv':
  
    Metadata:
  
      creator         : Coded
  
      metadatacreator : Yet Another Metadata Injector for FLV - Version 1.9
  
      hasKeyframes    : true
  
      hasVideo        : true
  
      hasAudio        : true
  
      hasMetadata     : true
  
      canSeekToEnd    : true
  
      datasize        : 69602014
  
      videosize       : 63600961
  
      audiosize       : 5917165
  
      lasttimestamp   : 292
  
      lastkeyframetimestamp: 292
  
      lastkeyframelocation: 69603218
  
      encoder         : Lavf57.71.100
  
      Stream #0:0: Video: h264 (High) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1280x720, q=2-31, 1742 kb/s, 25 fps, 25 tbr, 1k tbn, 1k tbc
  
      Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 48000 Hz, stereo, fltp, 158 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame= 1252 fps=0.0 q=-1.0 Lsize=   12074kB time=00:00:59.98 bitrate=1648.8kbits/s speed=1.21e+03x    
  
  video:10849kB audio:1153kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.598021%