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Autres articles (13)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • 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 (...)

Sur d’autres sites (4709)

  • Ffmpeg stream problems with buffer data

    27 juin 2023, par Erdem Ün

    my code is not working. I cannot conversion. how can I fix ?

    


    readable event working but Error output is

    


    


    data undefined

    


    


    try {

    const readStream = fs.createReadStream('./ses.webm');

    const command = childProcess.spawn('ffmpeg', ['-i', 'pipe:0', '-c:a', 'aac', 'pipe:1']);

    readStream.pipe(command.stdin);
    command.stdout.on('readable', (a) => {
      console.log('data', a)
    });

    command.on('data', (code) => {
      console.log(`ffmpeg işlemi tamamlandı. Çıkış kodu: ${code}`);
    });
  } catch (error) {
    console.log(error)
  }


    


  • Draw FFmpeg AVFrame data with OpenGL in Go

    27 avril 2018, par nevernew

    I’m making a video player in Go (on Windows) using FFmpeg and OpenGl, with the go wrappers goav and go-gl respectively. I want to set the pixels (stored in AVFrame->data) as a texture to display with OpenGL.

    I have it drawing pixels from a test array I created in Go, but it’s not taking the AVFrame data at all. The gl wrapper is giving me an error panic: reflect: call of reflect.Value.Pointer on uintptr Value with this code, I’ve tried different ways, trying to cast the data to the right type to be accepted but to no avail.

    This is the offending code where f is of type *Frame :

    type Frame C.struct_AVFrame
    

    
dataPtr := (*uint8)(unsafe.Pointer((*C.uint8_t)(unsafe.Pointer(&f.data))))
    
dataAddr := uintptr(unsafe.Pointer(dataPtr))
    

    
glPixelPointer := gl.Ptr(dataAddr) // reflect error happens here, so the pointer is wrong

    Trying to get the data from this C struct :

    #include 
    

    
typedef struct AVFrame {
    
#define AV_NUM_DATA_POINTERS 8
    
    uint8_t *data[AV_NUM_DATA_POINTERS];
    
}

    I can provide the rest of the code if needed, but there’s a lot of it to get the example running.

  • Draw FFmpeg AVFrame data with OpenGL with Go

    27 avril 2018, par nevernew

    I’m making a video player in Go (on Windows) using FFmpeg and OpenGl, with the go wrappers goav and go-gl respectively. I want to set the pixels (stored in AVFrame->data) as a texture to display with OpenGL.

    I have it drawing pixels from a test array I created in Go, but it’s not taking the AVFrame data at all. The gl wrapper is giving me an error panic: reflect: call of reflect.Value.Pointer on uintptr Value with this code, I’ve tried different ways, trying to cast the data to the right type to be accepted but to no avail.

    This is the offending code where f is of type *Frame :

    type Frame C.struct_AVFrame
    

    
dataPtr := (*uint8)(unsafe.Pointer((*C.uint8_t)(unsafe.Pointer(&f.data))))
    
dataAddr := uintptr(unsafe.Pointer(dataPtr))
    

    
glPixelPointer := gl.Ptr(dataAddr) // reflect error happens here, so the pointer is wrong

    Trying to get the data from this C struct :

    #include 
    

    
typedef struct AVFrame {
    
#define AV_NUM_DATA_POINTERS 8
    
    uint8_t *data[AV_NUM_DATA_POINTERS];
    
}

    I can provide the rest of the code if needed, but there’s a lot of it to get the example running.

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