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  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Participer à sa documentation

    10 avril 2011

    La documentation est un des travaux les plus importants et les plus contraignants lors de la réalisation d’un outil technique.
    Tout apport extérieur à ce sujet est primordial : la critique de l’existant ; la participation à la rédaction d’articles orientés : utilisateur (administrateur de MediaSPIP ou simplement producteur de contenu) ; développeur ; la création de screencasts d’explication ; la traduction de la documentation dans une nouvelle langue ;
    Pour ce faire, vous pouvez vous inscrire sur (...)

  • Qualité du média après traitement

    21 juin 2013, par

    Le bon réglage du logiciel qui traite les média est important pour un équilibre entre les partis ( bande passante de l’hébergeur, qualité du média pour le rédacteur et le visiteur, accessibilité pour le visiteur ). Comment régler la qualité de son média ?
    Plus la qualité du média est importante, plus la bande passante sera utilisée. Le visiteur avec une connexion internet à petit débit devra attendre plus longtemps. Inversement plus, la qualité du média est pauvre et donc le média devient dégradé voire (...)

Sur d’autres sites (6097)

  • ffmpeg command to copy raw data into MP4 hangs and never finishes

    28 mai 2019, par James Adams

    I am running an ffmpeg command to copy raw H.265 data into an MP4 file and the command never completes. The file isn’t large, just 10 seconds worth of data. Here’s the command I’m running :

    $ ffmpeg -rtsp_transport tcp -i rtsp://user:pass@71.185.124.195:554/c1/b1558830329/e1558830339/replay/ -vcodec copy -y test_clip.mp4

    I then get output like this :

    ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 78.100 / 55. 78.100
    
  libavcodec     57.107.100 / 57.107.100
    
  libavformat    57. 83.100 / 57. 83.100
    
  libavdevice    57. 10.100 / 57. 10.100
    
  libavfilter     6.107.100 /  6.107.100
    
  libavresample   3.  7.  0 /  3.  7.  0
    
  libswscale      4.  8.100 /  4.  8.100
    
  libswresample   2.  9.100 /  2.  9.100
    
  libpostproc    54.  7.100 / 54.  7.100
    
Guessed Channel Layout for Input Stream #0.1 : mono
    
Input #0, rtsp, from 'rtsp://user:pass@71.85.104.195:554/c1/b1558830329/e1558830339/replay/':
    
  Metadata:
    
    title           : ONVIF RTSP Server
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1920x1080, 30 fps, 30 tbr, 90k tbn, 60 tbc
    
    Stream #0:1: Audio: pcm_mulaw, 8000 Hz, mono, s16, 64 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (pcm_mulaw (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
[aac @ 0x55b71ce31900] Too many bits 8832.000000 > 6144 per frame requested, clamping to max
    
Output #0, mp4, to 'test_clip.mp4':
    
  Metadata:
    
    title           : ONVIF RTSP Server
    
    encoder         : Lavf57.83.100
    
    Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt709, progressive), 1920x1080, q=2-31, 30 fps, 30 tbr, 90k tbn, 90k tbc
    
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, mono, fltp, 48 kb/s
    
    Metadata:
    
      encoder         : Lavc57.107.100 aac
    
[mp4 @ 0x55b71ce17e00] Non-monotonous DTS in output stream 0:0; previous: 18000, current: 3000; changing to 18001. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0x55b71ce17e00] Non-monotonous DTS in output stream 0:0; previous: 18001, current: 6000; changing to 18002. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0x55b71ce17e00] Non-monotonous DTS in output stream 0:0; previous: 18002, current: 9000; changing to 18003. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0x55b71ce17e00] Non-monotonous DTS in output stream 0:0; previous: 18003, current: 12000; changing to 18004. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0x55b71ce17e00] Non-monotonous DTS in output stream 0:0; previous: 18004, current: 15000; changing to 18005. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0x55b71ce17e00] Non-monotonous DTS in output stream 0:0; previous: 18005, current: 18000; changing to 18006. This may result in incorrect timestamps in the output file.
    
frame=   44 fps=0.0 q=-1.0 size=     256kB time=00:00:01.43 bitrate=1463.4kbits/frame=   60 fps= 57 q=-1.0 size=     512kB time=00:00:01.96 bitrate=2132.9kbits/frame=   76 fps= 48 q=-1.0 size=     768kB time=00:00:02.50 bitrate=2516.7kbits/frame=   92 fps= 44 q=-1.0 size=    1024kB time=00:00:03.03 bitrate=2765.6kbits/frame=  108 fps= 41 q=-1.0 size=    1024kB time=00:00:03.56 bitrate=2352.0kbits/[NULL @ 0x55b71cdfa540] SEI type 5 size 2208 truncated at 1944
    
frame=  123 fps= 39 q=-1.0 size=    1280kB time=00:00:04.06 bitrate=2578.6kbits/frame=  139 fps= 38 q=-1.0 size=    1536kB time=00:00:04.60 bitrate=2735.5kbits/frame=  155 fps= 37 q=-1.0 size=    1536kB time=00:00:05.13 bitrate=2451.3kbits/frame=  171 fps= 36 q=-1.0 size=    1792kB time=00:00:05.66 bitrate=2590.7kbits/frame=  187 fps= 36 q=-1.0 size=    2048kB time=00:00:06.20 bitrate=2706.1kbits/frame=  203 fps= 35 q=-1.0 size=    2304kB time=00:00:06.73 bitrate=2803.2kbits/frame=  219 fps= 35 q=-1.0 size=    2304kB time=00:00:07.26 bitrate=2597.4kbits/frame=  235 fps= 34 q=-1.0 size=    2560kB time=00:00:07.80 bitrate=2688.7kbits/frame=  246 fps= 33 q=-1.0 size=    2560kB time=00:00:08.16 bitrate=2568.0kbits/frame=  267 fps= 34 q=-1.0 size=    3072kB time=00:00:08.86 bitrate=2838.3kbits/frame=  282 fps= 34 q=-1.0 size=    3072kB time=00:00:09.36 bitrate=2686.8kbits/frame=  298 fps= 33 q=-1.0 size=    3328kB time=00:00:09.90 bitrate=2753.9kbits/frame=  314 fps= 33 q=-1.0 size=    3328kB time=00:00:10.43 bitrate=2613.1kbits/^Cspeed=1.11x    

    The command never completes and I need to kill it using Ctrl-C.

    I have also tried adding the options -nostdin -loglevel error and appending this to the end of the command : > /dev/null 2>&1 < /dev/null but to no avail.

    I am testing the above since it mimics the actual code I’m developing which utilizes a Python package that wraps calls to ffmpeg. The Python code below works well on a laptop but hangs on EC2 (both are Ubuntu 18.04) :

    import argparse
    
import datetime
    
import ffmpeg
    

    

    
# ------------------------------------------------------------------------------
    
if __name__ == "__main__":
    

    
    # USAGE
    
    # $ python collect_and_store.py --rtsp rtsp://user:pass1@71.85.125.110:554 \
    
    #       --duration 30 --count 10
    

    
    # construct the argument parser and parse the arguments
    
    args_parser = argparse.ArgumentParser()
    
    args_parser.add_argument("--rtsp",
    
                             required=True,
    
                             type=str,
    
                             help="RTSP URL for video stream")
    
    args_parser.add_argument("--duration",
    
                             required=True,
    
                             type=int,
    
                             help="duration of saved clips (in seconds)")
    
    args_parser.add_argument("--count",
    
                             required=True,
    
                             type=int,
    
                             help="number of clips to save")
    
    args = vars(args_parser.parse_args())
    

    
    # sanity check for some of the arguments
    
    if not args["rtsp"].lower().startswith("rtsp://"):
    
        raise ValueError("Invalid input URL -- only RTSP supported")
    

    
    seconds_per_clip = args["duration"]
    
    start = int(datetime.datetime.now().strftime("%s"))
    
    end = start + seconds_per_clip
    
    number_of_files_to_collect = args["count"]
    

    
    while number_of_files_to_collect > 0:
    

    
        # build URL with start and end times
    
        # NOTE URL is for Uniview RTSP, add options for other camera types
    
        url = args["rtsp"] + f"/c1/b{start}/e{end}/replay/"
    

    
        # file where we'll write clip data
    
        temp_file = f"clip_b{start}_e{end}.mp4"
    

    
        # create the equivalent of the ffmpeg command:
    
        # $ ffmpeg -i  -vcodec copy -y -rtsp_transport tcp 
    
        stream = ffmpeg.input(url)
    
        stream = ffmpeg.output(stream, temp_file,
    
                               **{"codec:v": "copy",
    
                                  "rtsp_transport": "tcp",
    
                                  "y": None
    
                                  }
    
                               )
    
        ffmpeg.run(stream)
    

    
        print(f"\n\nMP4 file created: {temp_file}")
    

    
        number_of_files_to_collect -= 1
    
        start = end + 1
    
        end = start + seconds_per_clip

  • Empty line output while using Popen with ffmpeg

    27 mai 2019, par Elena_Ouyangmeng

    I’m trying to get information output from the command :

    ffmpeg -i 2019-04-22_16-45-14.mp4 -loop 1 -i image.png -an -filter_complex "blend=difference:shortest=1,blackframe=99:32" -f null -

    When trying this command in command line - the info is there, but when I try to use Popen - nothing (None, None)

    I’ve tried subprocess, and tried os.popen earlier.

    command = 'ffmpeg -i 2019-04-22_16-45-14.mp4 -loop 1 -i image.png -an -filter_complex "blend=difference:shortest=1,blackframe=99:32" -f null -'
    
subproc = subprocess.Popen(command.split(' '), shell=True)
    
x = subproc.communicate()
    
print(x)

  • Can't install the modules

    13 janvier 2019, par Megaluk

    I’m trying to install ffmpeg-binaries it works perfectly local but when I go to hiroku it starts to say that he can’t find the modules.

    This is for a Discord bot, running node.js I tried to install with npm other ffmpeg’s but only that works without implementing the ffmpeg itself

    Installing node modules (package.json + package-lock)

       > lzma-native@3.0.8 install /tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native
    
   > node-pre-gyp install --fallback-to-build && node node_modules/rimraf/bin.js build
    

    
   node-pre-gyp ERR! Tried to download(404): https://node-pre-gyp.addaleax.net/lzma-native/lzma_native-v3.0.8-node-v67-linux-x64.tar.gz 
    
   node-pre-gyp ERR! Pre-built binaries not found for lzma-native@3.0.8 and node@11.6.0 (node-v67 ABI, glibc) (falling back to source compile with node-gyp) 
    
   node-pre-gyp ERR! Tried to download(undefined): https://node-pre-gyp.addaleax.net/lzma-native/lzma_native-v3.0.8-node-v67-linux-x64.tar.gz 
    
   node-pre-gyp ERR! Pre-built binaries not found for lzma-native@3.0.8 and node@11.6.0 (node-v67 ABI, glibc) (falling back to source compile with node-gyp) 
    
   gyp: Call to 'sh liblzma-config.sh "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/build" "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/deps/xz-5.2.3.tar.bz2"' returned exit status 1 while in binding.gyp. while trying to load binding.gyp
    
   gyp ERR! configure error 
    
   gyp ERR! stack Error: `gyp` failed with exit code: 1
    
   gyp ERR! stack     at ChildProcess.onCpExit (/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:345:16)
    
   gyp ERR! stack     at ChildProcess.emit (events.js:188:13)
    
   gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:254:12)
    
   gyp ERR! System Linux 4.4.0-1031-aws
    
   gyp ERR! command "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/bin/node" "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "configure" "--fallback-to-build" "--module=/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/binding-v3.0.8-node-v67-linux-x64/lzma_native.node" "--module_name=lzma_native" "--module_path=/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/binding-v3.0.8-node-v67-linux-x64"
    
   gyp ERR! cwd /tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native
    
   gyp ERR! node -v v11.6.0
    
   gyp ERR! node-gyp -v v3.8.0
    
   gyp ERR! not ok 
    
   node-pre-gyp ERR! build error 
    
   node-pre-gyp ERR! stack Error: Failed to execute '/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/bin/node /tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js configure --fallback-to-build --module=/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/binding-v3.0.8-node-v67-linux-x64/lzma_native.node --module_name=lzma_native --module_path=/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/binding-v3.0.8-node-v67-linux-x64' (1)
    
   node-pre-gyp ERR! stack     at ChildProcess.<anonymous> (/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/node_modules/node-pre-gyp/lib/util/compile.js:83:29)
    
   node-pre-gyp ERR! stack     at ChildProcess.emit (events.js:188:13)
    
   node-pre-gyp ERR! stack     at maybeClose (internal/child_process.js:978:16)
    
   node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:265:5)
    
   node-pre-gyp ERR! System Linux 4.4.0-1031-aws
    
   node-pre-gyp ERR! command "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/bin/node" "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/node_modules/.bin/node-pre-gyp" "install" "--fallback-to-build"
    
   node-pre-gyp ERR! cwd /tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native
    
   node-pre-gyp ERR! node -v v11.6.0
    
   node-pre-gyp ERR! node-pre-gyp -v v0.6.39
    
   node-pre-gyp ERR! not ok 
    
   Failed to execute '/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/bin/node /tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js configure --fallback-to-build --module=/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/binding-v3.0.8-node-v67-linux-x64/lzma_native.node --module_name=lzma_native --module_path=/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/binding-v3.0.8-node-v67-linux-x64' (1)
    
   gyp: Call to 'sh liblzma-config.sh "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/build" "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/deps/xz-5.2.3.tar.bz2"' returned exit status 1 while in binding.gyp. while trying to load binding.gyp
    
   gyp ERR! configure error 
    
   gyp ERR! stack Error: `gyp` failed with exit code: 1
    
   gyp ERR! stack     at ChildProcess.onCpExit (/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:345:16)
    
   gyp ERR! stack     at ChildProcess.emit (events.js:188:13)
    
   gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:254:12)
    
   gyp ERR! System Linux 4.4.0-1031-aws
    
   gyp ERR! command "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/bin/node" "/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "configure" "--fallback-to-build" "--module=/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/binding-v3.0.8-node-v67-linux-x64/lzma_native.node" "--module_name=lzma_native" "--module_path=/tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native/binding-v3.0.8-node-v67-linux-x64"
    
   gyp ERR! cwd /tmp/build_681c54b9c6315cfb1c9672e8da7d4803/node_modules/decompress-tarxz/node_modules/lzma-native
    
   gyp ERR! node -v v11.6.0
    
   gyp ERR! node-gyp -v v3.8.0
    
   gyp ERR! not ok 
    
   npm ERR! code ELIFECYCLE
    
   npm ERR! errno 1
    
   npm ERR! lzma-native@3.0.8 install: `node-pre-gyp install --fallback-to-build &amp;&amp; node node_modules/rimraf/bin.js build`
    
   npm ERR! Exit status 1
    
   npm ERR! 
    
   npm ERR! Failed at the lzma-native@3.0.8 install script.
    
   npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
    

    
   npm ERR! A complete log of this run can be found in:
    
   npm ERR!     /tmp/npmcache.85YKx/_logs/2019-01-13T20_55_48_321Z-debug.log
    
</anonymous>

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