mlp_parse.c File Reference

#include <stdint.h>
#include "libavutil/channel_layout.h"
#include "get_bits.h"
#include "mlp_parse.h"
#include "mlp.h"

Go to the source code of this file.

Functions
static int	mlp_get_major_sync_size (const uint8_t *buf, int bufsize)
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
static const uint8_t	mlp_quants [16]
static const uint8_t	mlp_channels [32]
static const uint64_t	mlp_layout [32]

Function Documentation

mlp_get_major_sync_size()

static int mlp_get_major_sync_size ( const uint8_t *  buf, int  bufsize  )

static

Definition at line 63 of file mlp_parse.c.

Referenced by ff_mlp_read_major_sync().

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.

Definition at line 86 of file mlp_parse.c.

Referenced by mlp_parse(), read_major_sync(), and truehd_core_filter().

Variable Documentation

mlp_quants

const uint8_t mlp_quants[16]

static

Initial value:

= {
    16, 20, 24, 0, 0, 0, 0, 0,
     0,  0,  0, 0, 0, 0, 0, 0,
}

Definition at line 28 of file mlp_parse.c.

Referenced by ff_mlp_read_major_sync().

mlp_channels

const uint8_t mlp_channels[32]

static

Initial value:

= {
    1, 2, 3, 4, 3, 4, 5, 3, 4, 5, 4, 5, 6, 4, 5, 4,
    5, 6, 5, 5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
}

Definition at line 33 of file mlp_parse.c.

Referenced by ff_mlp_read_major_sync().

mlp_layout

const uint64_t mlp_layout[32]

static

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
}

Definition at line 38 of file mlp_parse.c.

Referenced by ff_mlp_read_major_sync().