Function rsmpeg::ffi::avformat_new_stream

pub unsafe extern "C" fn avformat_new_stream(
    s: *mut AVFormatContext, 
    c: *const AVCodec
) -> *mut AVStream

Add a new stream to a media file.

When demuxing, it is called by the demuxer in read_header(). If the flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also be called in read_packet().

When muxing, should be called by the user before avformat_write_header().

User is required to call avcodec_close() and avformat_free_context() to clean up the allocation by avformat_new_stream().

@param s media file handle @param c If non-NULL, the AVCodecContext corresponding to the new stream will be initialized to use this codec. This is needed for e.g. codec-specific defaults to be set, so codec should be provided if it is known.

@return newly created stream or NULL on error.