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• Merge commit ’a6f19d6a9f8d1e08653d9d77581e8c823f4955c2’

  8 juin 2015, par Michael Niedermayer

  Merge commit ’a6f19d6a9f8d1e08653d9d77581e8c823f4955c2’
  * commit ’a6f19d6a9f8d1e08653d9d77581e8c823f4955c2’ :
  
    configure : Support MSVC 2015
  Conflicts :
  
  	configure
  
  	libavutil/internal.h
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] configure
  • [DH] libavutil/internal.h

• Embedding timed text metadata in MP4

  10 juin 2015, par Steve Robinson

  Is it possible to manually embed timed text metadata into MP4 files ?
  I have a TTML / SRT file with the metadata. I just need to embed the text data without doing any encoding the video / audio.

  EDIT :
  We used to do the metadata injecting using on Wowza server which we use for live streaming. What I need to do is manually inject the metadata in to prerecorded MP4 files without running the video through Wowza.

  Here is one such video file that was processed by Wowza :

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'metadata-back.mp4':
  
    Metadata:
  
      major_brand     : f4v 
  
      minor_version   : 0
  
      compatible_brands: isommp42m4v 
  
      creation_time   : 2015-04-16 11:12:39
  
    Duration: 00:00:11.70, start: 0.000000, bitrate: 1373 kb/s
  
      Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv), 640x480 [SAR 1:1 DAR 4:3], 1352 kb/s, 28.60 fps, 30 tbr, 90k tbn, 60 tbc (default)
  
      Metadata:
  
        creation_time   : 2015-04-16 11:12:39
  
        handler_name    : WowzaStreamingEngine
  
        encoder         : WowzaStreamingEngine
  
      Stream #0:1(eng): Audio: speex (spex / 0x78657073), 16000 Hz, mono, s16, 17 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-04-16 11:12:39
  
        handler_name    : WowzaStreamingEngine
  
      Stream #0:2(eng): Data: none (amf0 / 0x30666D61), 0 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-04-16 11:12:39
  
        handler_name    : WowzaStreamingEngine

  Now if I run the command ffmpeg -i new-meta.mp4 -i sub.srt -c copy -c:s mov_text -movflags +faststart out.mp4 and if I run ffmpeg -i out.mp4, I get this :

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.4.101
  
    Duration: 00:00:07.27, start: 0.000000, bitrate: 925 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1366x768 [SAR 1:1 DAR 683:384], 920 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Subtitle: mov_text (tx3g / 0x67337874), 0 kb/s (default)
  
      Metadata:
  
        handler_name    : SubtitleHandler

  Now as you can see the text is embedded with a different codec (is this the right term ?). Also I dont see an audio track as well.

  Hope my question is clear enough. I need a way to embed metadata (from srt / ttml) into an MP4 video it should be embedded in amf format (again is this the right term ?)

• Error being thrown by ffmpeg and ffserver, not getting a stream

  2 novembre 2015, par rotheman

  i am trying to stream a file that I have in my directory using ffmpeg and ffserver. But an error occurs in both ffmpeg and ffserver. The following is my ffserver config file.

  HTTPPort 8092
  
   HTTPBindAddress 0.0.0.0
  
   MaxHTTPConnections 2000
  
   MaxClients 1000
  
   MaxBandwidth 2000
  
   CustomLog -
  
   #NoDaemon
  
   NoDefaults
  
  
  
  <feed>
  
    File /tmp/feed1.ffm
  
    FileMaxSize 20M 
  
    ACL allow 127.0.0.1
  
  </feed>
  
  
  
  <stream>      
  
    Feed feed1.ffm             
  
    Format webm
  
  
  
    AudioCodec vorbis
  
    AudioBitRate 64            
  
  
  
    VideoCodec libvpx
  
    VideoSize 720x576           
  
    VideoFrameRate 25          
  
    AVOptionVideo flags +global_header  
  
    AVOptionVideo cpu-used 0
  
    AVOptionVideo qmin 10
  
    AVOptionVideo qmax 42
  
    AVOptionVideo quality good
  
    AVOptionAudio flags +global_header
  
    PreRoll 15
  
    StartSendOnKey
  
    VideoBitRate 400
  
    AudioSampleRate 44100           
  
  </stream>

  I am able to start ffserver properly with no problems but when i try to serve ffserver with a file using ffmpeg, this happens

  ffmpeg -i sam.webm http://127.0.0.1:8092/feed1.ffm -vcodec copy
  
    ffmpeg version N-72738-g7630cce Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
    configuration: --enable-libvpx --enable-libvorbis --enable-libx264 --enable-gpl --enable-nonfree
  
    libavutil      54. 27.100 / 54. 27.100
  
    libavcodec     56. 41.100 / 56. 41.100
  
    libavformat    56. 36.100 / 56. 36.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 16.101 /  5. 16.101
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.100 /  1.  2.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
    Trailing options were found on the commandline.
  
    Input #0, matroska,webm, from 'sam.webm':
  
    Metadata:
  
      title           : Sintel Trailer
  
      encoder         : Lavf56.25.101
  
    Duration: 00:00:52.21, start: 0.000000, bitrate: 305 kb/s
  
    Stream #0:0: Video: vp8, yuv420p, 854x480, SAR 1:1 DAR 427:240, 24 fps, 24 tbr, 1k tbn, 1k tbc (default)
  
  Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp (default)
  
  [libvpx @ 0x367e180] v1.3.0
  
  Output #0, ffm, to 'http://127.0.0.1:8092/feed1.ffm':
  
  Metadata:
  
    title           : Sintel Trailer
  
    creation_time   : now
  
    encoder         : Lavf56.36.100
  
  Stream #0:0: Audio: vorbis (libvorbis), 44100 Hz, stereo, fltp, 64 kb/s (default)
  
  Metadata:
  
    encoder         : Lavc56.41.100 libvorbis
  
  Stream #0:1: Video: vp8 (libvpx), yuv420p, 720x576 [SAR 427:300 DAR 427:240], q=10-42, 400 kb/s, 24 fps, 1000k tbn, 25 tbc (default)
  
  Metadata:
  
    encoder         : Lavc56.41.100 libvpx
  
  Stream mapping:
  
    Stream #0:1 -> #0:0 (vorbis (native) -> vorbis (libvorbis))
  
    Stream #0:0 -> #0:1 (vp8 (native) -> vp8 (libvpx))
  
  Press [q] to stop, [?] for help
  
  av_interleaved_write_frame(): Connection reset by peer
  
      Last message repeated 2 times
  
     frame=   14 fps=0.0 q=0.0 Lsize=      16kB time=00:00:00.56 bitrate= 234.1kbits/s dup=1 drop=0    
  
     video:1kB audio:2kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 327.780670%
  
     Conversion failed!

  And this is the message i get in ffserver when this error happens in ffmpeg.

  ffserver
  
   ffserver version N-72738-g7630cce Copyright (c) 2000-2015 the FFmpeg developers
  
   built with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
   configuration: --enable-libvpx --enable-libvorbis --enable-libx264 --enable-gpl --enable-nonfree
  
   libavutil      54. 27.100 / 54. 27.100
  
   libavcodec     56. 41.100 / 56. 41.100
  
   libavformat    56. 36.100 / 56. 36.100
  
   libavdevice    56.  4.100 / 56.  4.100
  
   libavfilter     5. 16.101 /  5. 16.101
  
   libswscale      3.  1.101 /  3.  1.101
  
   libswresample   1.  2.100 /  1.  2.100
  
   libpostproc    53.  3.100 / 53.  3.100
  
   Mon Jun  8 18:38:28 2015 FFserver started.
  
   Mon Jun  8 18:38:40 2015 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175
  
   Mon Jun  8 18:38:40 2015 [NULL @ 0x29878a0]Missing key or no key/value separator found after key 'pkt_timebase'
  
  Mon Jun  8 18:38:40 2015 Feed '/tmp/feed1.ffm' stream number does not match registered feed
  
  Mon Jun  8 18:38:40 2015 127.0.0.1 - - [POST] "/feed1.ffm HTTP/1.1" 200 4096

  Can someone please help me ?