cbs.h File Reference

Declarations for FFmpeg Coded Bitstream API. More...

#include "utility.h"

Include dependency graph for cbs.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	cbs::h264_t
	H.264 parameter set before and after VUI rewriting. More...
struct	cbs::hevc_t
	HEVC parameter sets before and after VUI rewriting. More...
struct	cbs::nal_t
	Original and rewritten bytes for one codec NAL unit. More...

Functions
h264_t	cbs::make_sps_h264 (const AVCodecContext *avctx, const AVPacket *packet)
	Build replacement H.264 SPS bytes with Sunshine-required VUI fields.
hevc_t	cbs::make_sps_hevc (const AVCodecContext *avctx, const AVPacket *packet)
	Build replacement HEVC VPS/SPS bytes with Sunshine-required VUI fields.
bool	cbs::validate_sps (const AVPacket *packet, int codec_id)
	Check whether an encoded H.264 or HEVC packet contains active SPS VUI metadata.

Detailed Description

Declarations for FFmpeg Coded Bitstream API.

Function Documentation

make_sps_h264()

h264_t cbs::make_sps_h264	(	const AVCodecContext *	ctx,
		const AVPacket *	packet )

Build replacement H.264 SPS bytes with Sunshine-required VUI fields.

Build an H.264 replacement SPS for a packet.

Parameters

ctx	FFmpeg codec context that provides colorimetry and reference-frame metadata.
packet	Encoded packet containing the original SPS.

Returns

Original and rewritten SPS bytes.

make_sps_hevc()

hevc_t cbs::make_sps_hevc	(	const AVCodecContext *	ctx,
		const AVPacket *	packet )

Build replacement HEVC VPS/SPS bytes with Sunshine-required VUI fields.

Build HEVC replacement parameter sets for a packet.

Parameters

ctx	FFmpeg codec context that provides colorimetry and reference-frame metadata.
packet	Encoded packet containing the original VPS and SPS.

Returns

Original and rewritten VPS/SPS bytes.

validate_sps()

bool cbs::validate_sps	(	const AVPacket *	packet,
		int	codec_id )

Check whether an encoded H.264 or HEVC packet contains active SPS VUI metadata.

Parameters

packet	Encoded packet to parse with FFmpeg's coded bitstream reader.
codec_id	FFmpeg codec identifier; expected to be AV_CODEC_ID_H264 or AV_CODEC_ID_H265.

Returns

true when the packet's active SPS advertises VUI parameters.