spdif.h File Reference

#include <stdint.h>
#include "avformat.h"

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Macros
#define	SYNCWORD1   0xF872
#define	SYNCWORD2   0x4E1F
#define	BURST_HEADER_SIZE   0x8

Enumerations
enum	IEC61937DataType {   IEC61937_AC3 = 0x01, IEC61937_MPEG1_LAYER1 = 0x04, IEC61937_MPEG1_LAYER23 = 0x05, IEC61937_MPEG2_EXT = 0x06,   IEC61937_MPEG2_AAC = 0x07, IEC61937_MPEG2_LAYER1_LSF = 0x08, IEC61937_MPEG2_LAYER2_LSF = 0x09, IEC61937_MPEG2_LAYER3_LSF = 0x0A,   IEC61937_DTS1 = 0x0B, IEC61937_DTS2 = 0x0C, IEC61937_DTS3 = 0x0D, IEC61937_ATRAC = 0x0E,   IEC61937_ATRAC3 = 0x0F, IEC61937_ATRACX = 0x10, IEC61937_DTSHD = 0x11, IEC61937_WMAPRO = 0x12,   IEC61937_MPEG2_AAC_LSF_2048 = 0x13, IEC61937_MPEG2_AAC_LSF_4096 = 0x13 | 0x20, IEC61937_EAC3 = 0x15, IEC61937_TRUEHD = 0x16 }

Functions
void	ff_spdif_bswap_buf16 (uint16_t *dst, const uint16_t *src, int w)
int	ff_spdif_read_packet (AVFormatContext *s, AVPacket *pkt)
int	ff_spdif_probe (const uint8_t *p_buf, int buf_size, enum AVCodecID *codec)

Variables
static const uint16_t	spdif_mpeg_pkt_offset [2][3]

Macro Definition Documentation

#define BURST_HEADER_SIZE   0x8

Definition at line 30 of file spdif.h.

Referenced by ff_spdif_read_packet(), spdif_header_dts(), spdif_header_dts4(), spdif_header_truehd(), and spdif_write_packet().

#define SYNCWORD1   0xF872

Definition at line 28 of file spdif.h.

Referenced by ff_spdif_probe(), ff_spdif_read_packet(), and spdif_write_packet().

#define SYNCWORD2   0x4E1F

Definition at line 29 of file spdif.h.

Referenced by ff_spdif_probe(), ff_spdif_read_packet(), and spdif_write_packet().

Enumeration Type Documentation

enum IEC61937DataType

Enumerator
IEC61937_AC3	AC-3 data.
IEC61937_MPEG1_LAYER1	MPEG-1 layer 1.
IEC61937_MPEG1_LAYER23	MPEG-1 layer 2 or 3 data or MPEG-2 without extension.
IEC61937_MPEG2_EXT	MPEG-2 data with extension.
IEC61937_MPEG2_AAC	MPEG-2 AAC ADTS.
IEC61937_MPEG2_LAYER1_LSF	MPEG-2, layer-1 low sampling frequency.
IEC61937_MPEG2_LAYER2_LSF	MPEG-2, layer-2 low sampling frequency.
IEC61937_MPEG2_LAYER3_LSF	MPEG-2, layer-3 low sampling frequency.
IEC61937_DTS1	DTS type I (512 samples)
IEC61937_DTS2	DTS type II (1024 samples)
IEC61937_DTS3	DTS type III (2048 samples)
IEC61937_ATRAC	Atrac data.
IEC61937_ATRAC3	Atrac 3 data.
IEC61937_ATRACX	Atrac 3 plus data.
IEC61937_DTSHD	DTS HD data.
IEC61937_WMAPRO	WMA 9 Professional data.
IEC61937_MPEG2_AAC_LSF_2048	MPEG-2 AAC ADTS half-rate low sampling frequency.
IEC61937_MPEG2_AAC_LSF_4096	MPEG-2 AAC ADTS quarter-rate low sampling frequency.
IEC61937_EAC3	E-AC-3 data.
IEC61937_TRUEHD	TrueHD data.

Definition at line 32 of file spdif.h.

Function Documentation

void ff_spdif_bswap_buf16	(	uint16_t *	dst,
		const uint16_t *	src,
		int	w
	)

Definition at line 26 of file spdif.c.

Referenced by ff_spdif_read_packet(), and spdif_write_packet().

int ff_spdif_probe	(	const uint8_t *	p_buf,
		int	buf_size,
		enum AVCodecID *	codec
	)

Definition at line 112 of file spdifdec.c.

Referenced by spdif_probe().

int ff_spdif_read_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)

Definition at line 169 of file spdifdec.c.

Variable Documentation

const uint16_t spdif_mpeg_pkt_offset[2][3]

static

Initial value:

= {
    
    { 3072,    9216,   4608 }, 
    { 1536,    4608,   4608 }, 
}

Definition at line 55 of file spdif.h.

Referenced by spdif_get_offset_and_codec(), and spdif_header_mpeg().