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Autres articles (36)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (8368)

  • Can not get frames from youtube video using FFmpegMediaMetadataRetriever

    27 juin 2019, par Ahasan Ratul

    I have been trying to extract a frame from a youtube video using FFmpegMediaMetadataRetriever in my android studio project. whenever I use the youtube url inside setDataSource, the app crashes. I am totally new in android studio and haven’t worked with FFmpeg before. I would appreciate if anyone can help me out. Also, I am sorry if I have asked a really silly/easy question.

    import wseemann.media.FFmpegMediaMetadataRetriever;
    
.....
    

    
private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {
    
    @Override
    
    public void onManagerConnected(int status) {
    
        switch (status) {
    
            case LoaderCallbackInterface.SUCCESS: {
    
                Log.i(TAG, "OpenCV loaded successfully");
    
                mOpenCvCameraView.enableView();
    
                try {
    
                    initializeOpenCVDependencies();
    
                } catch (IOException e) {
    
                    e.printStackTrace();
    
                }
    
            }
    
            break;
    
            default: {
    
                super.onManagerConnected(status);
    
            }
    
            break;
    
        }
    
    }
    
};
    

    

    
private void initializeOpenCVDependencies() throws IOException {
    

    
    tick =0;
    
   //extract frame at 2 second using FFmpegMediaMetadataRetriever
    
    FFmpegMediaMetadataRetriever mmr = new FFmpegMediaMetadataRetriever();
    
    mmr.setDataSource("https://youtu.be/f-ehTcWC6dc");
    
    Bitmap b = mmr.getFrameAtTime(2000000, FFmpegMediaMetadataRetriever.OPTION_CLOSEST);
    
    mmr.release();
    

    
    objMat = new MatOfPoint2f();
    
    sceneMat = new MatOfPoint2f();
    
    obj_corners = new Mat(4, 1, CvType.CV_32FC2);
    
    img = new Mat();
    
    img2 = new Mat();
    
}

    in the build.gradle, I have added the following dependencies

    dependencies {
    

    
       //FFmpegMediaMetadataRetriever dependencies
    
       implementation 'com.github.wseemann:FFmpegMediaMetadataRetriever:1.0.14'
    

    
       implementation project(path: ':openCVLibrary340dev')
    
}

    error that I get is :

    E/AndroidRuntime : FATAL EXCEPTION : main
    Process : com.example.jeverfun, PID : 8877
    java.lang.RuntimeException : Unable to resume activity com.example.jeverfun/com.example.jeverfun.jevercamera : java.lang.IllegalArgumentException : setDataSource failed : status = 0xFFFFFFFF
    at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3581)
    at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3621)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2862)
    at android.app.ActivityThread.-wrap11(Unknown Source:0)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6494)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
    Caused by : java.lang.IllegalArgumentException : setDataSource failed : status = 0xFFFFFFFF
    at wseemann.media.FFmpegMediaMetadataRetriever.setDataSource(Native Method)
    at com.example.jeverfun.jevercamera.initializeOpenCVDependencies(jevercamera.java:373)
    at com.example.jeverfun.jevercamera.access$100(jevercamera.java:59)
    at com.example.jeverfun.jevercamera$1.onManagerConnected(jevercamera.java:347)
    at com.example.jeverfun.jevercamera.onResume(jevercamera.java:469)
    at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1355)
    at android.app.Activity.performResume(Activity.java:7117)
    at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3556)
    at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3621) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2862) 
    at android.app.ActivityThread.-wrap11(Unknown Source:0) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589) 
    at android.os.Handler.dispatchMessage(Handler.java:106) 
    at android.os.Looper.loop(Looper.java:164) 
    at android.app.ActivityThread.main(ActivityThread.java:6494) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807) 
    I/MediaMetadataRetrieverJNI : release
    Application terminated.

  • Can I use a config file within an embedded youtube-dl code ?

    10 mai 2017, par Stack Johan

    Right now, I’m having issues with ffmpeg not being recognized. I have the ffmpeg files stored in a folder, and I normally call ffmpeg using —ffmpeg-location.

    I don’t know how to do that within Python code, and I would prefer to use config files to call all the options.

    This is what I have right now :

    from __future__ import unicode_literals
    
import youtube_dl
    

    

    
 ydl_opts = {
    
    'format': 'bestaudio/best',
    
    'outtmpl': u'%(id)s.%(ext)s',
    
    'postprocessors': [{
    
    'key': 'FFmpegExtractAudio',
    
    'preferredcodec': 'mp3',
    
    'preferredquality': '192',
    
}]
    
}
    
with youtube_dl.YoutubeDL(ydl_opts) as ydl:
    
ydl.download(['https://youtu.be/Y_n0UwQMz5o'])

  • FFMPEG : Youtube streaming issues

    23 février 2019, par Alex Paramonov

    I am trying to make a reliable stream from my Icecast/Shoutcast servers to Youtube live.
    The command that I use is :

    /usr/bin/ffmpeg -re -loop 1 -framerate 1 -i /var/users/youtube_stream/DJ-philadelphia_jO46wsH.jpg -i http://127.0.0.1:4700/radio -c:v libx264 -preset ultrafast -maxrate 2048k -bufsize 2048k -c:a copy -ab 128k -s 1920x1080 -rtmp_live live -f flv rtmp://a.rtmp.youtube.com/live2/k123 -nostats

    The stream starts running but suddenly stops at random times with the output similar to this :

    av_interleaved_write_frame(): Broken pipe
    
[flv @ 0x5641e04db260] Failed to update header with correct duration.
    
[flv @ 0x5641e04db260] Failed to update header with correct filesize.
    
Error writing trailer of rtmp://a.rtmp.youtube.com/live2/123: Broken pipe
    
frame= 4771 fps=1.0 q=2.0 Lsize=  106465kB time=01:19:30.00 bitrate= 182.8kbits/s speed=   1x
    
video:29022kB audio:74516kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.825971%
    
Conversion failed!
    
99%
    
Exiting normally, received signal 15.

    I can’t say exactly why is this happening and maybe there is a way to fix it, but to mee it looks like ffmpeg can not send or convert some frame and it breaks the entire process, so I started digging the docs and found a fifo format that has reconnection options in case of failure.
    So my new command is :

    /usr/bin/ffmpeg -re -loop 1 -framerate 1 -i /var/users/youtube_stream/DJ-philadelphia_jO46wsH.jpg -i http://127.0.0.1:4700/radio -c:v libx264 -preset ultrafast -maxrate 2048k -bufsize 2048k -c:a copy -ab 128k -s 1920x1080 -rtmp_live live -f fifo -fifo_format flv -map 0:v -map 1:a -drop_pkts_on_overflow 1 -attempt_recovery 1 -recovery_wait_time 1 rtmp://a.rtmp.youtube.com/live2/123 -nostats

    With this command Youtube starts complaining about video resolution saying that 65535x65535 is not supported, value 65535 looks like something is not initialized properly. Please note that I have explicitly set the resolution with -s 1920x1080.

    The output from FLV and FIFO formats looks quite similar.

    FLV

    Input #0, image2, from '/var/users/youtube_stream/DJ-philadelphia_jO46wsH.jpg':
    
  Duration: 00:00:01.00, start: 0.000000, bitrate: 597 kb/s
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 1 fps, 1 tbr, 1 tbn, 1 tbc
    
Input #1, mp3, from 'http://127.0.0.1:4700/radio':
    
  Metadata:
    
    icy-br          : 128
    
    icy-description : test
    
    icy-genre       : test
    
    icy-name        : Test
    
    icy-pub         : 1
    
    StreamTitle     : silence
    
  Duration: N/A, start: 0.000000, bitrate: 128 kb/s
    
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
  Stream #1:0 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x563bdde386a0] using SAR=1/1
    
[libx264 @ 0x563bdde386a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x563bdde386a0] profile Constrained Baseline, level 4.0
    
[libx264 @ 0x563bdde386a0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=18 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=1 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=2048 vbv_bufsize=2048 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
    
Output #0, flv, to 'rtmp://a.rtmp.youtube.com/live2/k478-1xpz-v2de-5e79':
    
  Metadata:
    
    encoder         : Lavf57.83.100
    
    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 1 fps, 1k tbn, 1 tbc
    
    Metadata:
    
      encoder         : Lavc57.107.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 2048000/0/0 buffer size: 2048000 vbv_delay: -1
    
    Stream #0:1: Audio: mp3 ([2][0][0][0] / 0x0002), 44100 Hz, stereo, s16p, 128 kb/s

    FIFO

    Input #0, image2, from '/var/users/youtube_stream/DJ-philadelphia_jO46wsH.jpg':
    
  Duration: 00:00:01.00, start: 0.000000, bitrate: 597 kb/s
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 1 fps, 1 tbr, 1 tbn, 1 tbc
    
Input #1, mp3, from 'http://127.0.0.1:4700/radio':
    
  Metadata:
    
    icy-br          : 128
    
    icy-description : test
    
    icy-genre       : test
    
    icy-name        : Test
    
    icy-pub         : 1
    
    StreamTitle     : silence
    
  Duration: N/A, start: 0.000000, bitrate: 128 kb/s
    
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
  Stream #1:0 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x560fb2209ae0] using SAR=1/1
    
[libx264 @ 0x560fb2209ae0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x560fb2209ae0] profile Constrained Baseline, level 4.0
    
Output #0, fifo, to 'rtmp://a.rtmp.youtube.com/live2/k478-1xpz-v2de-5e79':
    
  Metadata:
    
    encoder         : Lavf57.83.100
    
    Stream #0:0: Video: h264 (libx264), yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 1 fps, 1 tbn, 1 tbc
    
    Metadata:
    
      encoder         : Lavc57.107.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 2048000/0/0 buffer size: 2048000 vbv_delay: -1
    
    Stream #0:1: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s

    you can see the input streams, output, mapping - all fine except one line that is missing with fifo format :

    [libx264 @ 0x563bdde386a0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html ...

    Seems like video codec is not completely initialized and does not start with when using fifo format.

    So my questions are :

    1. is there a way to create a reliable stream with ffmpeg w/o using
      fifo format ?
    2. if fifo format is mandatory in this case, what’s wrong with my
      video codec ?

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