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  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

Sur d’autres sites (7860)

  • Chrome times out on streaming FFMPEG output from ASP.NET Web Api

    3 août 2014, par Hayden McAfee

    I’ve got a unique problem here !

    UPDATE 2 So it turns out the development below is FALSE, the inconsistency of the bug made it seem like not closing the stream made it work... but in fact the same issue persists !

    UPDATE Interesting development ; if I comment out ffmpegBufferedIn.Close(); below, the entire stream always goes through fine... the request just never ends. What could be going on here ?

    I’m writing a web service that stores audio files in Azure Blob Storage, and converts them to MP3 live when requested through my ASP.NET Web API endpoint. I accomplish this by using ’DownloadToStream’ via the Azure Storage API, feeding that stream through the STDIN of an FFMPEG process, and sending the STDOUT stream as the request response.

    The block of code that does this looks like this :

    public HttpResponseMessage Get(Guid songid)
    
{
    
    // This could take awhile.
    
    HttpContext.Current.Server.ScriptTimeout = 600;
    

    
    Process ffmpeg = new Process();
    
    ProcessStartInfo startinfo = new ProcessStartInfo(HostingEnvironment.MapPath("~/App_Data/executables/ffmpeg.exe"), "-i - -vn -ar 44100 -ac 2 -ab 192k -f mp3 - ");
    
    startinfo.RedirectStandardError = true;
    
    startinfo.RedirectStandardOutput = true;
    
    startinfo.RedirectStandardInput = true;
    
    startinfo.UseShellExecute = false;
    
    startinfo.CreateNoWindow = true;
    
    ffmpeg.StartInfo = startinfo;
    
    ffmpeg.ErrorDataReceived += ffmpeg_ErrorDataReceived;
    

    
    // Our response is a stream
    
    var response = Request.CreateResponse();
    
    response.StatusCode = HttpStatusCode.OK;
    

    
    // Retrieve storage account from connection string.
    
    CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
    
        CloudConfigurationManager.GetSetting("StorageConnectionString"));
    

    
    // Create the blob client.
    
    CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
    

    
    // Retrieve reference to a previously created container.
    
    CloudBlobContainer container = blobClient.GetContainerReference("songs");
    

    
    // Retrieve reference to a blob
    
    CloudBlockBlob blockBlob = container.GetBlockBlobReference(songid.ToString());
    

    
    ffmpeg.Start();
    
    ffmpeg.BeginErrorReadLine();
    

    
    // Buffer the streams
    
    var ffmpegBufferedIn = new BufferedStream(ffmpeg.StandardInput.BaseStream);
    
    var ffmpegBufferedOut = new BufferedStream(ffmpeg.StandardOutput.BaseStream);
    

    
    blockBlob.DownloadToStreamAsync(ffmpegBufferedIn).ContinueWith((t) => {
    
        ffmpegBufferedIn.Flush();
    
        ffmpegBufferedIn.Close();
    
    });
    

    
    response.Content = new StreamContent(ffmpegBufferedOut);
    
    response.Content.Headers.ContentType = new MediaTypeHeaderValue("audio/mpeg");
    

    
    System.Diagnostics.Debug.WriteLine("Returned response.");
    
    return response;
    
}

    This works quite well in all browsers - all except for Chrome, which has an interesting way of buffering audio streams. Chrome will buffer the first 2 megabytes of a stream, then keep the connection open and wait until the user gets closer to playing the next segment of a file before consuming the rest of the stream. This should be fine - and for some songs it is. For others, I get this :

    Chrome error

    At first I thought this was due to some kind of timeout - But it happens at a different time and size for each file. It is consistent within about 15 seconds on the same songs, however. The output on the server side is normal - no exceptions thrown, and FFMpeg finishes encoding the song successfully.

    Here’s the server-side output of the above request :

    ffmpeg version N-64919-ga613257 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Jul 23 2014 00:27:32 with gcc 4.8.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
    
  libavutil      52. 92.101 / 52. 92.101
    
  libavcodec     55. 69.100 / 55. 69.100
    
  libavformat    55. 48.101 / 55. 48.101
    
  libavdevice    55. 13.102 / 55. 13.102
    
  libavfilter     4. 11.102 /  4. 11.102
    
  libswscale      2.  6.100 /  2.  6.100
    
  libswresample   0. 19.100 /  0. 19.100
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mp3, from 'pipe:':
    
  Metadata:
    
    TSRC            : AUUM71001516
    
    title           : Sunlight
    
    track           : 2
    
    artist          : Bag Raiders
    
    copyright       : 2010 Modular Recordings
    
    genre           : Electronic
    
    album           : Bag Raiders
    
    album_artist    : Bag Raiders
    
    disc            : 1/1
    
    publisher       : Modular Recordings
    
    composer        : Chris Stracey/Jack Glass/Dan Black
    
    date            : 2010
    
  Duration: N/A, start: 0.000000, bitrate: 320 kb/s
    
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
    
    Stream #0:1: Video: mjpeg, yuvj420p(pc, bt470bg), 600x600 [SAR 300:300 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    
    Metadata:
    
      title           : 
    
      comment         : Other
    
Output #0, mp3, to 'pipe:':
    
  Metadata:
    
    TSRC            : AUUM71001516
    
    TIT2            : Sunlight
    
    TRCK            : 2
    
    TPE1            : Bag Raiders
    
    TCOP            : 2010 Modular Recordings
    
    TCON            : Electronic
    
    TALB            : Bag Raiders
    
    TPE2            : Bag Raiders
    
    TPOS            : 1/1
    
    TPUB            : Modular Recordings
    
    TCOM            : Chris Stracey/Jack Glass/Dan Black
    
    TDRL            : 2010
    
    TSSE            : Lavf55.48.101
    
    Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s16p, 192 kb/s
    
    Metadata:
    
      encoder         : Lavc55.69.100 libmp3lame
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mp3 (native) -> mp3 (libmp3lame))
    
size=       6kB time=00:00:00.21 bitrate= 227.6kbits/s    
    
size=     102kB time=00:00:04.31 bitrate= 193.7kbits/s    
    
size=     202kB time=00:00:08.56 bitrate= 192.9kbits/s    
    
size=     341kB time=00:00:14.49 bitrate= 192.5kbits/s    
    
size=     489kB time=00:00:20.82 bitrate= 192.4kbits/s    
    
size=     642kB time=00:00:27.35 bitrate= 192.3kbits/s    
    
size=     792kB time=00:00:33.75 bitrate= 192.2kbits/s    
    
size=     950kB time=00:00:40.49 bitrate= 192.2kbits/s    
    
size=    1106kB time=00:00:47.15 bitrate= 192.2kbits/s    
    
size=    1258kB time=00:00:53.63 bitrate= 192.1kbits/s    
    
size=    1415kB time=00:01:00.31 bitrate= 192.1kbits/s    
    
size=    1563kB time=00:01:06.66 bitrate= 192.1kbits/s    
    
size=    1710kB time=00:01:12.90 bitrate= 192.1kbits/s    
    
size=    1857kB time=00:01:19.17 bitrate= 192.1kbits/s    
    
size=    2008kB time=00:01:25.63 bitrate= 192.1kbits/s    
    
size=    2162kB time=00:01:32.21 bitrate= 192.1kbits/s    
    
size=    2299kB time=00:01:38.03 bitrate= 192.1kbits/s    
    
size=    2457kB time=00:01:44.80 bitrate= 192.1kbits/s    
    
size=    2600kB time=00:01:50.89 bitrate= 192.1kbits/s    
    
size=    2755kB time=00:01:57.52 bitrate= 192.1kbits/s    
    
size=    2864kB time=00:02:02.17 bitrate= 192.1kbits/s    
    
size=    3022kB time=00:02:08.88 bitrate= 192.1kbits/s    
    
size=    3172kB time=00:02:15.31 bitrate= 192.1kbits/s    
    
size=    3284kB time=00:02:20.06 bitrate= 192.1kbits/s    
    
size=    3385kB time=00:02:24.40 bitrate= 192.1kbits/s    
    
size=    3529kB time=00:02:30.51 bitrate= 192.0kbits/s    
    
size=    3687kB time=00:02:37.25 bitrate= 192.0kbits/s    
    
size=    3838kB time=00:02:43.71 bitrate= 192.0kbits/s    
    
size=    3988kB time=00:02:50.11 bitrate= 192.0kbits/s    
    
size=    4138kB time=00:02:56.53 bitrate= 192.0kbits/s    
    
size=    4279kB time=00:03:02.54 bitrate= 192.0kbits/s    
    
size=    4408kB time=00:03:08.03 bitrate= 192.0kbits/s    
    
size=    4544kB time=00:03:13.85 bitrate= 192.0kbits/s    
    
size=    4683kB time=00:03:19.78 bitrate= 192.0kbits/s    
    
size=    4805kB time=00:03:24.95 bitrate= 192.0kbits/s    
    
size=    4939kB time=00:03:30.67 bitrate= 192.0kbits/s    
    
size=    5049kB time=00:03:35.38 bitrate= 192.0kbits/s    
    
size=    5141kB time=00:03:39.32 bitrate= 192.0kbits/s    
    
size=    5263kB time=00:03:44.49 bitrate= 192.0kbits/s    
    
size=    5372kB time=00:03:49.17 bitrate= 192.0kbits/s    
    
The thread 0xb24 has exited with code 259 (0x103).
    
size=    5436kB time=00:03:51.91 bitrate= 192.0kbits/s    
    
size=    5509kB time=00:03:55.02 bitrate= 192.0kbits/s    
    
size=    5657kB time=00:04:01.32 bitrate= 192.0kbits/s    
    
size=    5702kB time=00:04:03.22 bitrate= 192.0kbits/s
    

    
video:0kB audio:5701kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.005738%

    Any ideas ? I’m grateful for suggestions - I’ve been chasing this for a week now !

  • FFmpeg - downmixing FLAC 6.1 to AAC 5.1

    7 juillet 2014, par Martijn

    I can’t seem to figure out how to do this. I’ve been staring at these commands :
    https://trac.ffmpeg.org/wiki/AudioChannelManipulation

    But to no avail. It’s a tad above my level, sadly. Here’s the ffmpeg -i output for the video in question :

    ffmpeg version N-64012-g61df081 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Jun 16 2014 22:01:59 with gcc 4.8.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex--enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
    
  libavutil      52. 89.100 / 52. 89.100
    
  libavcodec     55. 67.100 / 55. 67.100
    
  libavformat    55. 43.100 / 55. 43.100
    
  libavdevice    55. 13.101 / 55. 13.101
    
  libavfilter     4.  8.100 /  4.  8.100
    
  libswscale      2.  6.100 /  2.  6.100
    
  libswresample   0. 19.100 /  0. 19.100
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, matroska,webm, from '[Coalgirls]_Spirited_Away_(1920x1038_Blu-ray_FLAC)_[92372194].mkv':
    
  Metadata:
    
    title           : Spirited Away
    
    encoder         : libebml v1.3.0 + libmatroska v1.4.0
    
    creation_time   : 2014-07-03 01:32:13
    
  Duration: 02:04:32.29, start: 0.000000, bitrate: 15972 kb/s
    
    Chapter #0.0: start 0.000000, end 99.099000
    
    Metadata:
    
      title           : 00:00:00.000
    
    Chapter #0.1: start 99.099000, end 196.238000
    
    Metadata:
    
      title           : 00:01:39.099
    
    Chapter #0.2: start 196.238000, end 443.526000
    
    Metadata:
    
      title           : 00:03:16.238
    
    Chapter #0.3: start 443.526000, end 645.395000
    
    Metadata:
    
      title           : 00:07:23.526
    
    Chapter #0.4: start 645.395000, end 1023.022000
    
    Metadata:
    
      title           : 00:10:45.395
    
    Chapter #0.5: start 1023.022000, end 1368.534000
    
    Metadata:
    
      title           : 00:17:03.022
    
    Chapter #0.6: start 1368.534000, end 1716.048000
    
    Metadata:
    
      title           : 00:22:48.534
    
    Chapter #0.7: start 1716.048000, end 2008.173000
    
    Metadata:
    
      title           : 00:28:36.048
    
    Chapter #0.8: start 2008.173000, end 2301.674000
    
    Metadata:
    
      title           : 00:33:28.173
    
    Chapter #0.9: start 2301.674000, end 2651.816000
    
    Metadata:
    
      title           : 00:38:21.674
    
    Chapter #0.10: start 2651.816000, end 2906.821000
    
    Metadata:
    
      title           : 00:44:11.816
    
    Chapter #0.11: start 2906.821000, end 3271.351000
    
    Metadata:
    
      title           : 00:48:26.821
    
    Chapter #0.12: start 3271.351000, end 3729.017000
    
    Metadata:
    
      title           : 00:54:31.351
    
    Chapter #0.13: start 3729.017000, end 4091.587000
    
    Metadata:
    
      title           : 01:02:09.017
    
    Chapter #0.14: start 4091.587000, end 4476.847000
    
    Metadata:
    
      title           : 01:08:11.587
    
    Chapter #0.15: start 4476.847000, end 4750.579000
    
    Metadata:
    
      title           : 01:14:36.847
    
    Chapter #0.16: start 4750.579000, end 5139.760000
    
    Metadata:
    
      title           : 01:19:10.579
    
    Chapter #0.17: start 5139.760000, end 5478.890000
    
    Metadata:
    
      title           : 01:25:39.760
    
    Chapter #0.18: start 5478.890000, end 5853.806000
    
    Metadata:
    
      title           : 01:31:18.890
    
    Chapter #0.19: start 5853.806000, end 6318.937000
    
    Metadata:
    
      title           : 01:37:33.806
    
    Chapter #0.20: start 6318.937000, end 6625.118000
    
    Metadata:
    
      title           : 01:45:18.937
    
    Chapter #0.21: start 6625.118000, end 6771.098000
    
    Metadata:
    
      title           : 01:50:25.118
    
    Chapter #0.22: start 6771.098000, end 6914.199000
    
    Metadata:
    
      title           : 01:52:51.098
    
    Chapter #0.23: start 6914.199000, end 7253.580000
    
    Metadata:
    
      title           : 01:55:14.199
    
    Chapter #0.24: start 7253.580000, end 7472.288000
    
    Metadata:
    
      title           : 02:00:53.580
    
    Stream #0:0: Video: h264 (High 10), yuv420p10le(tv, bt709), 1920x1038, SAR 1:1 DAR 320:173, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    
    Metadata:
    
      title           : Spirited Away
    
    Stream #0:1(jpn): Audio: flac, 48000 Hz, 6.1, s32 (default)
    
    Metadata:
    
      title           : 6.1 FLAC
    
    Stream #0:2(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    
    Metadata:
    
      title           : 5.1 AC3
    
    Stream #0:3(fre): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    
    Metadata:
    
      title           : 5.1 AC3
    
    Stream #0:4(ger): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    
    Metadata:
    
      title           : 5.1 AC3
    
    Stream #0:5(fin): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    
    Metadata:
    
      title           : 2.0 AC3
    
    Stream #0:6(kor): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    
    Metadata:
    
      title           : 5.1 AC3
    
    Stream #0:7(chi): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    
    Metadata:
    
      title           : 5.1 AC3
    
    Stream #0:8(chi): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    
    Metadata:
    
      title           : 5.1 AC3
    
    Stream #0:9(eng): Subtitle: ssa (default)
    
    Metadata:
    
      title           : English
    
    Stream #0:10(fre): Subtitle: ssa
    
    Metadata:
    
      title           : French
    
    Stream #0:11(ger): Subtitle: ssa
    
    Metadata:
    
      title           : German
    
    Stream #0:12(eng): Subtitle: ssa
    
    Metadata:
    
      title           : Songs + Signs
    
    Stream #0:13: Attachment: ttf
    
    Metadata:
    
      filename        : MyriadPro-Regular.otf
    
      mimetype        : application/x-truetype-font
    
    Stream #0:14: Attachment: ttf
    
    Metadata:
    
      filename        : MyriadPro-SemiboldIt.otf
    
      mimetype        : application/x-truetype-font
    
    Stream #0:15: Attachment: ttf
    
    Metadata:
    
      filename        : Vesta-Bold.otf
    
      mimetype        : application/x-truetype-font
    
    Stream #0:16: Attachment: ttf
    
    Metadata:
    
      filename        : Vesta-Bold_2.otf
    
      mimetype        : application/x-truetype-font
    
    Stream #0:17: Attachment: ttf
    
    Metadata:
    
      filename        : AR CENA_0.TTF
    
      mimetype        : application/x-truetype-font
    
    Stream #0:18: Attachment: ttf
    
    Metadata:
    
      filename        : tahomabd.ttf
    
      mimetype        : application/x-truetype-font
    
    Stream #0:19: Attachment: ttf
    
    Metadata:
    
      filename        : palai.ttf
    
      mimetype        : application/x-truetype-font
    
    Stream #0:20: Attachment: ttf
    
    Metadata:
    
      filename        : pala.ttf
    
      mimetype        : application/x-truetype-font

    As you can see, one of the streams is a FLAC 6.1 stream. I wanted to convert that to AAC, and I know how to do that, basically like this :

    ffmpeg -i "input.mkv" -codec:v copy -codec:a aac -strict -2 -b:a 320k -f matroska "output.mkv"

    But apparently AAC doesn’t support 6.1 audio :

    ...
    
[aac @ 03b26860] Unsupported number of channels: 7
    
Output #0, matroska, to 'd:\Movies\[Coalgirls]_Spirited_Away_(1920x1038_Blu-ray_FLAC)_[92372194].aac.mkv':
    
    Stream #0:0(jpn): Video: h264, yuv420p10le, 1920x1038 [SAR 1:1 DAR 320:173], q=2-31, 23.98 fps, 90k tbn, 1k tbc (default)
    
    Stream #0:1(jpn): Audio: aac, 0 channels, 128 kb/s (default)
    
    Metadata:
    
      encoder         : Lavc55.67.100 aac
    
    Stream #0:2(eng): Subtitle: ssa, 128 kb/s (default)
    
    Metadata:
    
      encoder         : Lavc55.67.100 ssa
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (flac (native) -> aac (aac))
    
  Stream #0:9 -> #0:2 (ssa (native) -> ssa (native))
    
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

    That’s fine, so I wanted to downmix it to 5.1 and encode as AAC. But I can’t seem to work out how to. Any advice ?

  • What are the specifications of Flex usable FLV videos ?

    26 septembre 2011, par Riduidel

    I have a server which streams FLV files to a Flex client.
    In this flex client, the video timeline advances incoherently, and no video can be seen on screen (only the sound can be heard).

    My FLV file has been generated using ffmpeg, which says (about this generated file)

    FFmpeg version 0.6, Copyright (c) 2000-2010 the FFmpeg developers
    
  built on Aug  8 2010 04:24:04 with gcc 4.3.2
    
  configuration: --prefix=/home/marpada/ffmpegfull --enable-gpl --enable-version3 --enable-nonfree --disable-ffplay --disable-ffserver --enable-libmp3lame --enable-libfaac --enable-libvpx --enable-libfaad --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxvid --enable-libx264 --enable-libtheora --extra-ldflags=-static --extra-libs='-lvorbis -logg -lxvidcore -lx264 -lopencore-amrnb -lopencore-amrwb -lfaad -lfaac -lvpx -ltheora -lm -lpthread' --enable-small --enable-runtime-cpudetect
    
  libavutil     50.15. 1 / 50.15. 1
    
  libavcodec    52.72. 2 / 52.72. 2
    
  libavformat   52.64. 2 / 52.64. 2
    
  libavdevice   52. 2. 0 / 52. 2. 0
    
  libswscale     0.11. 0 /  0.11. 0
    
[flv @ 0x95c6aa0]Estimating duration from bitrate, this may be inaccurate
    

    
Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)
    
Input #0, flv, from '/appli/perigee_70ri/data/files/ged_bur%0/Imagettes/70ri/279/2/8/20_109021138o.70ri_FLV_preview_.flv':
    
  Metadata:
    
    hasMetadata     : true
    
    hasVideo        : true
    
    hasAudio        : true
    
    duration        : 589
    
    lasttimestamp   : 589
    
    lastkeyframetimestamp: 589
    
    width           : 352
    
    height          : 288
    
    videodatarate   : 199
    
    framerate       : 25
    
    audiodatarate   : 125
    
    audiosamplerate : 44100
    
    audiosamplesize : 16
    
    stereo          : true
    
    filesize        : 25058444
    
    videosize       : 15195503
    
    audiosize       : 9690850
    
    datasize        : 23027
    
    metadatacreator : flvmeta 1.1-r202
    
    audiocodecid    : 2
    
    videocodecid    : 2
    
    audiodelay      : 0
    
    canSeekToEnd    : false
    
    hasCuePoints    : false
    
    hasKeyframes    : true
    
  Duration: 00:09:48.78, start: 0.000000, bitrate: 332 kb/s
    
    Stream #0.0: Video: flv, yuv420p, 352x288, 204 kb/s, 25 tbr, 1k tbn, 1k tbc
    
    Stream #0.1: Audio: mp3, 44100 Hz, 2 channels, s16, 128 kb/s
    
At least one output file must be specified

    Which, as far as it seems to me, is OK.

    Furthermore, the video plays nice in VLC.

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