vpcc.c File Reference

#include "libavutil/pixdesc.h"
#include "libavutil/pixfmt.h"
#include "libavcodec/defs.h"
#include "libavcodec/get_bits.h"
#include "vpcc.h"

Go to the source code of this file.

Macros
#define	VP9_SYNCCODE   0x498342

Enumerations
enum	VPX_CHROMA_SUBSAMPLING {   VPX_SUBSAMPLING_420_VERTICAL = 0, VPX_SUBSAMPLING_420_COLLOCATED_WITH_LUMA = 1, VPX_SUBSAMPLING_422 = 2, VPX_SUBSAMPLING_444 = 3,   VPX_SUBSAMPLING_420_VERTICAL = 0, VPX_SUBSAMPLING_420_COLLOCATED_WITH_LUMA = 1, VPX_SUBSAMPLING_422 = 2, VPX_SUBSAMPLING_444 = 3 }

Functions
static int	get_vpx_chroma_subsampling (AVFormatContext *s, enum AVPixelFormat pixel_format, enum AVChromaLocation chroma_location)
static int	get_bit_depth (AVFormatContext *s, enum AVPixelFormat pixel_format)
static int	get_vpx_video_full_range_flag (enum AVColorRange color_range)
static int	get_vp9_level (AVCodecParameters *par, AVRational *frame_rate)
static void	parse_bitstream (GetBitContext *gb, int *profile, int *bit_depth)
int	ff_isom_get_vpcc_features (AVFormatContext *s, AVCodecParameters *par, const uint8_t *data, int len, AVRational *frame_rate, VPCC *vpcc)
int	ff_isom_write_vpcc (AVFormatContext *s, AVIOContext *pb, const uint8_t *data, int len, AVCodecParameters *par)
	Writes VP codec configuration to the provided AVIOContext. More...

Macro Definition Documentation

VP9_SYNCCODE

#define VP9_SYNCCODE   0x498342

Definition at line 28 of file vpcc.c.

Enumeration Type Documentation

VPX_CHROMA_SUBSAMPLING

enum VPX_CHROMA_SUBSAMPLING

Enumerator
VPX_SUBSAMPLING_420_VERTICAL
VPX_SUBSAMPLING_420_COLLOCATED_WITH_LUMA
VPX_SUBSAMPLING_422
VPX_SUBSAMPLING_444
VPX_SUBSAMPLING_420_VERTICAL
VPX_SUBSAMPLING_420_COLLOCATED_WITH_LUMA
VPX_SUBSAMPLING_422
VPX_SUBSAMPLING_444

Definition at line 30 of file vpcc.c.

Function Documentation

get_vpx_chroma_subsampling()

static int get_vpx_chroma_subsampling ( AVFormatContext *  s, enum AVPixelFormat  pixel_format, enum AVChromaLocation  chroma_location  )

static

Definition at line 38 of file vpcc.c.

Referenced by ff_isom_get_vpcc_features().

get_bit_depth()

static int get_bit_depth ( AVFormatContext *  s, enum AVPixelFormat  pixel_format  )

static

Definition at line 58 of file vpcc.c.

Referenced by ff_isom_get_vpcc_features().

get_vpx_video_full_range_flag()

static int get_vpx_video_full_range_flag ( enum AVColorRange  color_range )

static

Definition at line 69 of file vpcc.c.

Referenced by ff_isom_get_vpcc_features().

get_vp9_level()

static int get_vp9_level ( AVCodecParameters *  par, AVRational *  frame_rate  )

static

Definition at line 75 of file vpcc.c.

Referenced by ff_isom_get_vpcc_features().

parse_bitstream()

static void parse_bitstream ( GetBitContext *  gb, int *  profile, int *  bit_depth  )

static

Definition at line 120 of file vpcc.c.

Referenced by ff_isom_get_vpcc_features().

ff_isom_get_vpcc_features()

int ff_isom_get_vpcc_features	(	AVFormatContext *	s,
		AVCodecParameters *	par,
		const uint8_t *	data,
		int	len,
		AVRational *	frame_rate,
		VPCC *	vpcc
	)

Definition at line 153 of file vpcc.c.

Referenced by ff_isom_write_vpcc(), and set_vp9_codec_str().

ff_isom_write_vpcc()

int ff_isom_write_vpcc	(	AVFormatContext *	s,
		AVIOContext *	pb,
		const uint8_t *	data,
		int	len,
		AVCodecParameters *	par
	)

Writes VP codec configuration to the provided AVIOContext.

Parameters

s	address of the AVFormatContext for the logging context.
pb	address of the AVIOContext where the vpcC shall be written.
data	address of a data array which contains coded bitstream data from which codec information can be extracted. May be NULL.
len	length of the data array.
par	address of the AVCodecParameters which contains codec information.

Returns

>=0 in case of success, a negative value corresponding to an AVERROR code in case of failure

Definition at line 200 of file vpcc.c.

Referenced by flv_write_codec_header(), and mov_write_vpcc_tag().