Function ffmpeg_dev::sys::ff_alloc_extradata

pub unsafe extern "C" fn ff_alloc_extradata(
    par: *mut AVCodecParameters, 
    size: c_int
) -> c_int

Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0.

Previously allocated extradata in par will be freed.

@param size size of extradata @return 0 if OK, AVERROR_xxx on error