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    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
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Sur d’autres sites (8083)

  • movenc : Allow writing a DASH sidx atom at the start of files

    21 octobre 2014, par Martin Storsjö
    movenc : Allow writing a DASH sidx atom at the start of files

    This is mapped to the faststart flag (which in this case
    
perhaps should be called "shift and write index at the
    
start of the file"), which for fragmented files will
    
write a sidx index at the start.
    

    When segmenting DASH into files, there’s usually one sidx
    
at the start of each segment (although it’s not clear to me
    
whether that actually is necessary). When storing all of it
    
in one file, the MPD doesn’t necessarily need to describe
    
the individual segments, but the offsets of the fragments can be
    
fetched from one large sidx atom at the start of the file. This
    
allows creating files for the DASH ISO BMFF on-demand profile.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] libavformat/movenc.c
    • [DBH] libavformat/movenc.h

  • FFmpeg. avcodec_find_encoder(AV_CODEC_ID_H264) return false

    14 juillet 2016, par Иван Чванов

    The problem : I can not connect the h264 codec for encoding and decoding of frames.

    Description :

    I downloaded from here ffmpeg library https://ffmpeg.zeranoe.com/builds/, version dev.

    Connect it to your project QT :

    extern "C"
    
{
    
    #include 
    
    #include 
    
    #include 
    
    #include 
    
    #include 
    
}
    
    
    
#pragma comment (lib, "avcodec.lib")
    
#pragma comment (lib, "avformat.lib")
    
#pragma comment (lib, "swscale.lib")
    
#pragma comment (lib, "avutil.lib")

    Next prescribe av_register_all(); to include all codecs.

    Next, call the function : avcodec_find_encoder(AV_CODEC_ID_H264), returns false.

    In the ReadMe file, the library said that it was collected with —enable-libx264 and —enable-gpl compile the keys including h264 codec that is supposed to be.

    If the call : avcodec_find_encoder(AV_CODEC_ID_MPEG1VIDEO), it returns an object AVCodec, as it should.

    I use the MinGW compiler. OC Windows 7.

    How can I resolve or work around the problem ? Compile the library itself has not yet obtained. I understand you to connect sources and "poking" them, that too is meaningless.

    ** Once again, I will describe my problem : **

    I need to encode the codec h264 (can VP9) individual frames in one program, and then decode them in another program. You can use other libraries. The language C ++. It is necessary to use interframe compression codec, rather than simply pressed apart frames.

    Sorry for my english.

    Ideas. Advice. Suggestions.

  • FFmpeg. avcodec_find_encoder(AV_CODEC_ID_H264) return false

    14 juillet 2016, par Иван Чванов

    The problem : I can not connect the h264 codec for encoding and decoding of frames.

    Description :

    I downloaded from here ffmpeg library https://ffmpeg.zeranoe.com/builds/, version dev.

    Connect it to your project QT :

    extern "C"
    
{
    
    #include 
    
    #include 
    
    #include 
    
    #include 
    
    #include 
    
}
    
    
    
#pragma comment (lib, "avcodec.lib")
    
#pragma comment (lib, "avformat.lib")
    
#pragma comment (lib, "swscale.lib")
    
#pragma comment (lib, "avutil.lib")

    Next prescribe av_register_all(); to include all codecs.

    Next, call the function : avcodec_find_encoder(AV_CODEC_ID_H264), returns false.

    In the ReadMe file, the library said that it was collected with —enable-libx264 and —enable-gpl compile the keys including h264 codec that is supposed to be.

    If the call : avcodec_find_encoder(AV_CODEC_ID_MPEG1VIDEO), it returns an object AVCodec, as it should.

    I use the MinGW compiler. OC Windows 7.

    How can I resolve or work around the problem ? Compile the library itself has not yet obtained. I understand you to connect sources and "poking" them, that too is meaningless.

    ** Once again, I will describe my problem : **

    I need to encode the codec h264 (can VP9) individual frames in one program, and then decode them in another program. You can use other libraries. The language C ++. It is necessary to use interframe compression codec, rather than simply pressed apart frames.

    Sorry for my english.

    Ideas. Advice. Suggestions.

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