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Autres articles (37)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

Sur d’autres sites (6608)

  • Covert a file from mp4 to a file that HTML video tag can display

    26 juin 2019, par Trying_To_Understand

    I have a mp4 file and I want to display it in HTML. The problem is that it won’t, not only in HTML but also in my player. In VLC I can watch the video but there is no sound. Maybe the file is corrupted ?
    This is the output when I run ffmpeg -i my_file.mp4 :

    [h264 @ 000001b4afc61880] decode_slice_header error
    
[h264 @ 000001b4afc61880] no frame!
    
[h264 @ 000001b4afc61880] non-existing PPS 0 referenced
    
    Last message repeated 1 times
    
[h264 @ 000001b4afc61880] decode_slice_header error
    
[h264 @ 000001b4afc61880] no frame!
    
Input #0, mpeg, from '150_2.mp4':
    
  Duration: 00:50:51.75, start: 13182.386222, bitrate: 983 kb/s
    
    Stream #0:0[0x1e0]: Video: h264 (High), yuv420p(progressive), 1280x720, 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x1c0]: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
    
At least one output file must be specified.

    Can I convert this with ffmpeg to a good quality of video and audio ?

  • Passing file name in youtube-dl post-process script without file extension suffix

    2 avril 2021, par Arete

    The documentation for youtube-dl says I can run a post-process command with the --exec option.

    


    Using Windows, here is an example I have tried :

    


    youtube-dl --exec "ffmpeg -i {} -ac 2 -c:a libfdk_aac -cutoff 20000 -afterburner 1 -vbr 0 {}.m4a" https://www.youtube.com/watch?v=sw9DlMNnpPM


    


    Note that {} passes the file name to the post-process command. For example filename.webm.

    


    The problem is that {} includes the file extension.

    


    How can I pass the file name to the post-process command without the file extension ?

    


    For example, if I were to convert the video, I would rather avoid getting an output name like filename.webm.m4a. Needless to say, I would rather want filename.m4a.

    


  • HLS with FFmpeg, browser skips m3u8 in sequence

    16 octobre 2019, par Jongseok Yoon

    I’m writing a program with C++, receiving 2-second-long mp4 video and converting it to m3u8 and same-duration ts files in real-time.

    Problem is when I check it with browsers on PC, it doesn’t load m3u8 properly.

    For example, when I start to watch m3u8, it loads first m3u8 with #EXT-X-MEDIA-SEQUENCE : 1, then it keeps loading first m3u8, then suddenly skips to #EXT-X-MEDIA-SEQUENCE : 4 or larger.

    Streaming still works, but it is very unstable due to that problem. It loads some ts together, then loads nothing while loading same m3u8 it already loaded, and skips 3 or more m3u8 and loads ts files together and again.

    ffmpeg -loglevel level+warning -i SOURCE.mp4 -an -filter:v fps=fps=10 -f hls -hls_list_size 7 -strftime 1 -hls_segment_filename '1.ts' -hls_flags append_list+omit_endlist DEST.m3u8

    This is ffmpeg command in my program, using hls_segment_filename option to overwrite ts files so I limit number of files under 100, and it runs every 2 second.

    Maybe, I’m overwriting it too fast to be loaded ?

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