Function ff_alloc_extradata

libavformat/utils.c:237–253

}

int ff_alloc_extradata(AVCodecParameters *par, int size)
{
    av_freep(&par->extradata);
    par->extradata_size = 0;

    if (size < 0 || size >= INT32_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
        return AVERROR(EINVAL);

    par->extradata = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
    if (!par->extradata)
        return AVERROR(ENOMEM);

    memset(par->extradata + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
    par->extradata_size = size;

    return 0;
}

/*******************************************************/