mlp_parser.c File Reference

MLP parser. More...

#include <stdint.h>
#include "libavutil/channel_layout.h"
#include "libavutil/crc.h"
#include "libavutil/internal.h"
#include "get_bits.h"
#include "parser.h"
#include "mlp_parser.h"
#include "mlp.h"

Classes
struct	MLPParseContext

Typedefs
typedef struct MLPParseContext	MLPParseContext

Functions
uint64_t	ff_truehd_layout (int chanmap)
int	ff_mlp_read_major_sync (void *log, MLPHeaderInfo *mh, GetBitContext *gb)
	Read a major sync info header - contains high level information about the stream - sample rate, channel arrangement etc. More...

Variables
const uint64_t	ff_mlp_layout [32]
AVCodecParser	ff_mlp_parser

Detailed Description

MLP parser.

Function Documentation

ff_mlp_read_major_sync()

int ff_mlp_read_major_sync	(	void *	log,
		MLPHeaderInfo *	mh,
		GetBitContext *	gb
	)

Read a major sync info header - contains high level information about the stream - sample rate, channel arrangement etc.

Most of this information is not actually necessary for decoding, only for playback. gb must be a freshly initialized GetBitContext with no bits read.

Variable Documentation

ff_mlp_layout

const uint64_t ff_mlp_layout[32]

Initial value:

= {
    AV_CH_LAYOUT_MONO,
    AV_CH_LAYOUT_STEREO,
    AV_CH_LAYOUT_2_1,
    AV_CH_LAYOUT_QUAD,
    AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,
    AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY,
    AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY,
    AV_CH_LAYOUT_SURROUND,
    AV_CH_LAYOUT_4POINT0,
    AV_CH_LAYOUT_5POINT0_BACK,
    AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY,
    AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,
    AV_CH_LAYOUT_5POINT1_BACK,
    AV_CH_LAYOUT_4POINT0,
    AV_CH_LAYOUT_5POINT0_BACK,
    AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY,
    AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,
    AV_CH_LAYOUT_5POINT1_BACK,
    AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY,
    AV_CH_LAYOUT_5POINT0_BACK,
    AV_CH_LAYOUT_5POINT1_BACK,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}

ff_mlp_parser

AVCodecParser ff_mlp_parser

Initial value:

= {
    .codec_ids      = { AV_CODEC_ID_MLP, AV_CODEC_ID_TRUEHD },
    .priv_data_size = sizeof(MLPParseContext),
    .parser_init    = mlp_init,
    .parser_parse   = mlp_parse,
    .parser_close   = ff_parse_close,
}