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

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.


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