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  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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 (12895)

  • Voxware MetaSound decoder

    5 août 2013, par Kostya Shishkov
    Voxware MetaSound decoder
    • [DH] Changelog
    • [DH] configure
    • [DH] doc/general.texi
    • [DH] libavcodec/Makefile
    • [DH] libavcodec/allcodecs.c
    • [DH] libavcodec/metasound.c
    • [DH] libavcodec/metasound_data.c
    • [DH] libavcodec/metasound_data.h
    • [DH] libavcodec/twinvq.c
    • [DH] libavcodec/version.h

  • Configure ffmpeg for wowza and wp8

    11 octobre 2013, par Anton Shakalo

    I have mp4 file from my windows phone.

    There is info :

    General
    
Format                                   : MPEG-4
    
Format profile                           : Base Media / Version 2
    
Codec ID                                 : mp42
    

    
Video
    
Format                                    : AVC
    
Codec ID                                 : avc1
    
Codec ID/Info                           : Advanced Video Coding
    

    
Audio
    
Format                                    : AAC
    
Format profile                           : LC
    
Codec ID                                 : 40
    
Bit rate                                   : 96.0 Kbps
    
Sampling rate                           : 44.1 KHz

    When I stream it to wowza with next ffmpeg command ( I got it from documentation)

    ffmpeg -re -i "C:\sample2.mp4"  -vcodec libx264  -vb 150000 -g 60 -vprofile main -level 2.1 -acodec aac -ab 64000 -ar 48000 -ac 2 -vbsf h264_mp4toannexb  -f mpegts udp://127.0.0.1:10001?pkt_size=1316

    In client app I see corrupted video : http://i.imgur.com/fKEMlsB.png

    With sample file provided by wowza streamed video looks fine.

    There is info about sample file from wowza :

    General
    
Format                                   : MPEG-4
    
Format profile                           : QuickTime
    
Codec ID                                 : qt  
    

    
Video
    
Format                                   : AVC
    
Format profile                           : Baseline@L3.0
    
Codec ID                                 : avc1
    

    
Audio
    
Format                                   : AAC
    
Format profile                           : LC
    
Codec ID                                 : 40

    Can you help me with ffmpeg configuring ?
    I read documentation, but understand nothing.

  • JavaCV FFmpegFrameRecorder properties explanation needed

    29 décembre 2014, par Leron

    I’m using FFmpegFrameRecorder to get the video input from my webcam and record it into a video file. The problem is that I’m building my application using a few different demo source codes that I found and I use properties some of which are not completely clear to me.

    First, here is my code snippet :

    FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(FILENAME,  grabber.getImageWidth(),grabber.getImageHeight());
    

    
        recorder.setVideoCodec(13);
    
        recorder.setFormat("mp4");
    
        recorder.setPixelFormat(avutil.PIX_FMT_YUV420P);
    
        recorder.setFrameRate(30);
    
        recorder.setVideoBitrate(10 * 1024 * 1024);
    

    
        recorder.start();
    • setVideoCodec(13) - What is the meaning of this (13) how can I understand what actual codec stands behind any number ?
    • setPixelFormat - Just get this, don’t know what it’s doing in general
    • setFrameRate(30) - I think this should be pretty clear but still what is the logic behind what frame rate we choose (isn’t the high the better ?)
    • setVideoBitrate(10*1024*1024) - again almost no idea what this does and what’s the logic behind the numbers ?

    At the end I just want to mention one last problem that I get recording video like this. If the actual length of the video is let’s say 20secs. When I play the video file created from the program it runs significantly faster. Can’t tell if it’s exactly 2 times faster than it should be but in general if I record a 20sec video then it’s played for about 10secs. What may cause this and how can I fix it ?

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