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  • Librairies et binaires spécifiques au traitement vidéo et sonore

    31 janvier 2010, par

    Les logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
    Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
    Binaires complémentaires et facultatifs flvtool2 : (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (5369)

  • FFMPEG missing audio when remuxing AVI to MP4

    24 juillet 2022, par Joba

    I want to convert from .avi to .mp4 without any quality impact.

    


    When I use ffmpeg cli to remux the file the output file is missing the audio.

    


    


    ffmpeg -i input.mpg.avi -c copy output.mp4

    


    


    ➜  Desktop ffmpeg -i input.mpg.avi -c copy output.mp4
ffmpeg version 5.0.1 Copyright (c) 2000-2022 the FFmpeg developers
  built with Apple clang version 13.1.6 (clang-1316.0.21.2.5)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.0.1_3 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
  libavutil      57. 17.100 / 57. 17.100
  libavcodec     59. 18.100 / 59. 18.100
  libavformat    59. 16.100 / 59. 16.100
  libavdevice    59.  4.100 / 59.  4.100
  libavfilter     8. 24.100 /  8. 24.100
  libswscale      6.  4.100 /  6.  4.100
  libswresample   4.  3.100 /  4.  3.100
  libpostproc    56.  3.100 / 56.  3.100
Input #0, avi, from 'input.mpg.avi':
  Metadata:
    software        : transcode-1.0.6
  Duration: 01:45:46.56, start: 0.000000, bitrate: 2055 kb/s
  Stream #0:0: Video: mpeg4 (Simple Profile) (DX50 / 0x30355844), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1915 kb/s, 25 fps, 25 tbr, 25 tbn
  Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, fltp, 128 kb/s
Output #0, mp4, to 'output.mp4':
  Metadata:
    software        : transcode-1.0.6
    encoder         : Lavf59.16.100
  Stream #0:0: Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=2-31, 1915 kb/s, 25 fps, 25 tbr, 12800 tbn
  Stream #0:1: Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=158664 fps=142852 q=-1.0 Lsize= 1587337kB time=01:45:46.55 bitrate=2048.9kbits/s speed=5.71e+03x    
video:1483615kB audio:99165kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.287948%


    


  • FFMPEG HTTP Stream error, failed : Connection refused

    17 juillet 2022, par Halo Gass

    I tried to stream a video frame from opencv to network using MPEG-Dash, HLS, or RTSP via FFMPEG, but everytime I tried everything, it always throw "Connection Error, Connection Refused" even streaming to 127.0.0.1.

    


    Here the code for testing :

    


    import subprocess
import cv2
rtmp_url = "rtmp://127.0.0.1:1935/stream/pupils_trace"

# webcamera is 0, also you can set a video file name instead, for example "/home/user/demo.mp4"
path = 0
cap = cv2.VideoCapture(path)

# gather video info to ffmpeg
fps = int(cap.get(cv2.CAP_PROP_FPS))
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))

# command and params for ffmpeg
command = ['ffmpeg',
           '-y',
           '-f', 'rawvideo',
           '-vcodec', 'rawvideo',
           '-pix_fmt', 'bgr24',
           '-s', "{}x{}".format(width, height),
           '-r', str(fps),
           '-i', '-',
           '-c:v', 'libx264',
           '-pix_fmt', 'yuv420p',
           '-preset', 'ultrafast',
           '-f', 'flv',
           rtmp_url]

# using subprocess and pipe to fetch frame data
p = subprocess.Popen(command, stdin=subprocess.PIPE)


while cap.isOpened():
    ret, frame = cap.read()
    if not ret:
        print("frame read failed")
        break

    # YOUR CODE FOR PROCESSING FRAME HERE

    # write to pipe
    p.stdin.write(frame.tobytes())


    


    and below is the log :

    


    ffmpeg version 4.2.7-0ubuntu0.1 Copyright (c) 2000-2022 the FFmpeg developers&#xA;  built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)&#xA;  configuration: --prefix=/usr --extra-version=0ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared&#xA;  libavutil      56. 31.100 / 56. 31.100&#xA;  libavcodec     58. 54.100 / 58. 54.100&#xA;  libavformat    58. 29.100 / 58. 29.100&#xA;  libavdevice    58.  8.100 / 58.  8.100&#xA;  libavfilter     7. 57.100 /  7. 57.100&#xA;  libavresample   4.  0.  0 /  4.  0.  0&#xA;  libswscale      5.  5.100 /  5.  5.100&#xA;  libswresample   3.  5.100 /  3.  5.100&#xA;  libpostproc    55.  5.100 / 55.  5.100&#xA;Input #0, rawvideo, from &#x27;pipe:&#x27;:&#xA;  Duration: N/A, start: 0.000000, bitrate: 221184 kb/s&#xA;    Stream #0:0: Video: rawvideo (BGR[24] / 0x18524742), bgr24, 1280x720, 221184 kb/s, 10 tbr, 10 tbn, 10 tbc&#xA;[tcp @ 0x556bea198680] Connection to tcp://127.0.0.1:1935 failed: Connection refused&#xA;[rtmp @ 0x556bea1a2640] Cannot open connection tcp://127.0.0.1:1935&#xA;rtmp://127.0.0.1:1935/stream/pupils_trace: Connection refused&#xA;Traceback (most recent call last):&#xA;  File "testing.py", line 42, in <module>&#xA;    p.stdin.write(frame.tobytes())&#xA;</module>

    &#xA;

    Here what I tried (All of it always "Connection Refused")

    &#xA;

      &#xA;
    1. Running the code directly

      2. &#xA;

    2. Running the code using sudo

      3. &#xA;

    3. Run with 'sudo su'

      4. &#xA;

    4. Allow the port used in ufw

      5. &#xA;

    5. Disable ufw

      6. &#xA;

    6. I tried executing command directly in terminal, also throws "connection refused"

      7. &#xA;

    7. using 127.0.0.1 or "localhost" or 0.0.0.0 or my local IP, everything throws connection error

      8. &#xA;

    8. Tried UDP and TCP

      9. &#xA;

    &#xA;

    Anyone can help me ?&#xA;Thanks

    &#xA;

  • how to get precise video bit rate in a .ts file ?

    26 juillet 2022, par Wang Yilan

    I often use ffprobe to get video bitrates and audio bitrates, but when I used ffprobe to get video bitrate of a .ts file, it seemed get wrong answers :

    &#xA;

    > ffprobe ts-5s/abs-Life_of_PI-01-05s-0.95-1.5-0.15.ts&#xA;ffprobe version N-107320-g3354f8695c Copyright (c) 2007-2022 the FFmpeg developers&#xA;  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)&#xA;  configuration: --enable-version3 --enable-libvmaf --enable-libx264 --enable-libx265 --enable-libvpx --enable-x86asm --enable-shared --disable-static --enable-gpl --enable-postproc --enable-hardcoded-tables --enable-pthreads --enable-pic --enable-zlib --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib --extra-libs=-lcjson&#xA;  libavutil      57. 27.100 / 57. 27.100&#xA;  libavcodec     59. 36.100 / 59. 36.100&#xA;  libavformat    59. 26.100 / 59. 26.100&#xA;  libavdevice    59.  6.100 / 59.  6.100&#xA;  libavfilter     8. 41.100 /  8. 41.100&#xA;  libswscale      6.  6.100 /  6.  6.100&#xA;  libswresample   4.  6.100 /  4.  6.100&#xA;  libpostproc    56.  5.100 / 56.  5.100&#xA;Input #0, mpegts, from &#x27;ts-5s/abs-Life_of_PI-01-05s-0.95-1.5-0.15.ts&#x27;:&#xA;  Duration: 00:00:05.02, start: 1.472511, bitrate: 1423 kb/s&#xA;  Program 1&#xA;    Metadata:&#xA;      service_name    : Service01&#xA;      service_provider: FFmpeg&#xA;  Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x688, 23.98 fps, 23.98 tbr, 90k tbn&#xA;  Stream #0:1[0x101](und): Audio: mp2 ([3][0][0][0] / 0x0003), 44100 Hz, stereo, fltp, 384 kb/s&#xA;

    &#xA;

    it seemed that the bitrate is 1423k,but when I used bitrate viewer to get this result, it is 952k :&#xA;enter image description here

    &#xA;

    And 1423k-384k=1039k, it cannot match the result of bitrate-viewer, neither.

    &#xA;

    So my question are :

    &#xA;

      &#xA;
    1. what result is the correct result of this .ts file ?

      2. &#xA;

    2. Can I get this result in batches ? (using terminal commands or others)

      3. &#xA;

    &#xA;

    many thanks.

    &#xA;

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