libavcodec/dca_parser.c File Reference

#include "parser.h"
#include "dca.h"
#include "dcadata.h"
#include "dca_parser.h"
#include "get_bits.h"
#include "put_bits.h"

Go to the source code of this file.

Data Structures
struct	DCAParseContext
Defines
#define	IS_MARKER(state, i, buf, buf_size)
Functions
static int	dca_find_frame_end (DCAParseContext *pc1, const uint8_t *buf, int buf_size)
	Find the end of the current frame in the bitstream.
static av_cold int	dca_parse_init (AVCodecParserContext *s)
int	ff_dca_convert_bitstream (const uint8_t *src, int src_size, uint8_t *dst, int max_size)
	Convert bitstream to one representation based on sync marker.
static int	dca_parse_params (const uint8_t *buf, int buf_size, int *duration, int *sample_rate)
static int	dca_parse (AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size)
Variables
AVCodecParser	ff_dca_parser

---

Define Documentation

#define IS_MARKER	(	state,
		i,
		buf,
		buf_size		)

Value:

((state == DCA_MARKER_14B_LE && (i < buf_size-2) && (buf[i+1] & 0xF0) == 0xF0 && buf[i+2] == 0x07) \
 || (state == DCA_MARKER_14B_BE && (i < buf_size-2) && buf[i+1] == 0x07 && (buf[i+2] & 0xF0) == 0xF0) \
 || state == DCA_MARKER_RAW_LE || state == DCA_MARKER_RAW_BE || state == DCA_HD_MARKER)

Definition at line 40 of file dca_parser.c.

Referenced by dca_find_frame_end(), decode_slice(), find_next_marker(), vaapi_vc1_decode_slice(), vc1_decode_frame(), vc1_find_frame_end(), and vc1_split().

---

Function Documentation

static int dca_find_frame_end	(	DCAParseContext *	pc1,
		const uint8_t *	buf,
		int	buf_size
	)			[static]

Find the end of the current frame in the bitstream.

Returns:

the position of the first byte of the next frame, or -1

Definition at line 49 of file dca_parser.c.

Referenced by dca_parse().

static int dca_parse	(	AVCodecParserContext *	s,
		AVCodecContext *	avctx,
		const uint8_t **	poutbuf,
		int *	poutbuf_size,
		const uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 170 of file dca_parser.c.

static av_cold int dca_parse_init

(

AVCodecParserContext *

s

)

[static]

Definition at line 97 of file dca_parser.c.

static int dca_parse_params	(	const uint8_t *	buf,
		int	buf_size,
		int *	duration,
		int *	sample_rate
	)			[static]

Definition at line 140 of file dca_parser.c.

Referenced by dca_parse().

int ff_dca_convert_bitstream	(	const uint8_t *	src,
		int	src_size,
		uint8_t *	dst,
		int	max_size
	)

Convert bitstream to one representation based on sync marker.

Definition at line 105 of file dca_parser.c.

Referenced by dca_decode_frame(), and dca_parse_params().

---

Variable Documentation

AVCodecParser ff_dca_parser

Initial value:

 {
    .codec_ids      = { CODEC_ID_DTS },
    .priv_data_size = sizeof(DCAParseContext),
    .parser_init    = dca_parse_init,
    .parser_parse   = dca_parse,
    .parser_close   = ff_parse_close,
}

Definition at line 204 of file dca_parser.c.