rtpengine/lib/fix_frame_channel_layout-01.h

#include <libavutil/frame.h>
#include <libavutil/channel_layout.h>
#include "compat.h"

INLINE void fix_frame_channel_layout(AVFrame *frame) {
	if (frame->channel_layout) {
#if LIBAVUTIL_VERSION_MAJOR < 56
		if (!frame->channels)
			frame->channels = av_frame_get_channels(frame);
#endif
		return;
	}
#if LIBAVUTIL_VERSION_MAJOR < 56
	frame->channel_layout = av_get_default_channel_layout(av_frame_get_channels(frame));
#else
	frame->channel_layout = av_get_default_channel_layout(frame->channels);
#endif
}