#include <stdint.h>
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavcodec/codec_id.h"
#include "mov_chan.h"

Data Structures
struct	MovChannelLayoutMap

Macros
#define	TAG(_0) {.tag = _0}

#define	ID(_0) {.id = c_##_0}

#define	CHLIST(_0, ...) TAG(_0), __VA_ARGS__

#define	CHLIST01(_0, _1) CHLIST(_0, ID(_1))

#define	CHLIST02(_0, _1, _2) CHLIST(_0, ID(_1), ID(_2))

#define	CHLIST03(_0, _1, _2, _3) CHLIST(_0, ID(_1), ID(_2), ID(_3))

#define	CHLIST04(_0, _1, _2, _3, _4) CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4))

#define	CHLIST05(_0, _1, _2, _3, _4, _5) CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5))

#define	CHLIST06(_0, _1, _2, _3, _4, _5, _6) CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6))

#define	CHLIST07(_0, _1, _2, _3, _4, _5, _6, _7) CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6), ID(_7))

#define	CHLIST08(_0, _1, _2, _3, _4, _5, _6, _7, _8) CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6), ID(_7), ID(_8))

#define	CHLIST09(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9) CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6), ID(_7), ID(_8), ID(_9))

#define	CHLIST16(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16)

#define	CHLIST21(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, _21)

Enumerations
enum	{ c_L = AV_CHAN_FRONT_LEFT, c_R = AV_CHAN_FRONT_RIGHT, c_C = AV_CHAN_FRONT_CENTER, c_LFE = AV_CHAN_LOW_FREQUENCY, c_Rls = AV_CHAN_BACK_LEFT, c_Rrs = AV_CHAN_BACK_RIGHT, c_Lc = AV_CHAN_FRONT_LEFT_OF_CENTER, c_Rc = AV_CHAN_FRONT_RIGHT_OF_CENTER, c_Cs = AV_CHAN_BACK_CENTER, c_Ls = AV_CHAN_SIDE_LEFT, c_Rs = AV_CHAN_SIDE_RIGHT, c_Ts = AV_CHAN_TOP_CENTER, c_Vhl = AV_CHAN_TOP_FRONT_LEFT, c_Vhc = AV_CHAN_TOP_FRONT_CENTER, c_Vhr = AV_CHAN_TOP_FRONT_RIGHT, c_Rlt = AV_CHAN_TOP_BACK_LEFT, c_Rrt = AV_CHAN_TOP_BACK_RIGHT, c_Lt = AV_CHAN_STEREO_LEFT, c_Rt = AV_CHAN_STEREO_RIGHT, c_Lw = AV_CHAN_WIDE_LEFT, c_Rw = AV_CHAN_WIDE_RIGHT, c_Lsd = AV_CHAN_SURROUND_DIRECT_LEFT, c_Rsd = AV_CHAN_SURROUND_DIRECT_RIGHT, c_LFE2 = AV_CHAN_LOW_FREQUENCY_2, c_W = AV_CHAN_AMBISONIC_BASE, c_Y = AV_CHAN_AMBISONIC_BASE + 1, c_Z = AV_CHAN_AMBISONIC_BASE + 2, c_X = AV_CHAN_AMBISONIC_BASE + 3, c_LFE1 = AV_CHAN_LOW_FREQUENCY, c_Csd = AV_CHAN_NONE, c_HI = AV_CHAN_NONE, c_VI = AV_CHAN_NONE, c_Haptic = AV_CHAN_NONE }
	mov 'chan' tag reading/writing. More...

Functions
static const struct MovChannelLayoutMap *	find_layout_map (uint32_t tag)

static int	mov_get_channel_layout (AVChannelLayout *ch_layout, uint32_t tag)
	Get the channel layout for the specified non-special channel layout tag if known. More...

static enum AVChannel	mov_get_channel_id (uint32_t label)

static uint32_t	mov_get_channel_label (enum AVChannel channel)

int	ff_mov_get_channel_layout_tag (const AVCodecParameters par, uint32_t layout, uint32_t bitmap, uint32_t *pchannel_desc)
	Get the channel layout tag for the specified codec id and channel layout. More...

int	ff_mov_read_chan (AVFormatContext s, AVIOContext pb, AVStream *st, int64_t size)
	Read 'chan' tag from the input stream. More...

int	ff_mov_get_channel_config_from_layout (const AVChannelLayout layout, int config)
	Get ISO/IEC 23001-8 ChannelConfiguration from AVChannelLayout. More...

int	ff_mov_get_channel_layout_from_config (int config, AVChannelLayout *layout)
	Get AVChannelLayout from ISO/IEC 23001-8 ChannelConfiguration. More...

int	ff_mov_get_channel_positions_from_layout (const AVChannelLayout layout, uint8_t position, int position_num)
	Get ISO/IEC 23001-8 OutputChannelPosition from AVChannelLayout. More...

int	ff_mov_read_chnl (AVFormatContext s, AVIOContext pb, AVStream *st)
	Read 'chnl' tag from the input stream. More...

Variables
static const struct MovChannelLayoutMap	mov_ch_layout_map []

static enum MovChannelLayoutTag	mov_ch_layouts_aac []

static enum MovChannelLayoutTag	mov_ch_layouts_ac3 []

static enum MovChannelLayoutTag	mov_ch_layouts_alac []

static enum MovChannelLayoutTag	mov_ch_layouts_wav []

struct {
enum AVCodecID codec_id

enum MovChannelLayoutTag * layouts

}	mov_codec_ch_layouts []

static const AVChannelLayout	iso_channel_configuration []

static enum AVChannel	iso_channel_position []

Macro Definition Documentation

◆ TAG

#define TAG ( _0 ) {.tag = _0}

Definition at line 83 of file mov_chan.c.

◆ ID

#define ID ( _0 ) {.id = c_##_0}

Definition at line 84 of file mov_chan.c.

◆ CHLIST

#define CHLIST	(	_0,
		...
	)	TAG(_0), __VA_ARGS__

Definition at line 85 of file mov_chan.c.

◆ CHLIST01

#define CHLIST01	(	_0,
		_1
	)	CHLIST(_0, ID(_1))

Definition at line 86 of file mov_chan.c.

◆ CHLIST02

#define CHLIST02	(	_0,
		_1,
		_2
	)	CHLIST(_0, ID(_1), ID(_2))

Definition at line 87 of file mov_chan.c.

◆ CHLIST03

#define CHLIST03	(	_0,
		_1,
		_2,
		_3
	)	CHLIST(_0, ID(_1), ID(_2), ID(_3))

Definition at line 88 of file mov_chan.c.

◆ CHLIST04

#define CHLIST04	(	_0,
		_1,
		_2,
		_3,
		_4
	)	CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4))

Definition at line 89 of file mov_chan.c.

◆ CHLIST05

#define CHLIST05	(	_0,
		_1,
		_2,
		_3,
		_4,
		_5
	)	CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5))

Definition at line 90 of file mov_chan.c.

◆ CHLIST06

#define CHLIST06	(	_0,
		_1,
		_2,
		_3,
		_4,
		_5,
		_6
	)	CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6))

Definition at line 91 of file mov_chan.c.

◆ CHLIST07

#define CHLIST07	(	_0,
		_1,
		_2,
		_3,
		_4,
		_5,
		_6,
		_7
	)	CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6), ID(_7))

Definition at line 92 of file mov_chan.c.

◆ CHLIST08

#define CHLIST08	(	_0,
		_1,
		_2,
		_3,
		_4,
		_5,
		_6,
		_7,
		_8
	)	CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6), ID(_7), ID(_8))

Definition at line 93 of file mov_chan.c.

◆ CHLIST09

#define CHLIST09	(	_0,
		_1,
		_2,
		_3,
		_4,
		_5,
		_6,
		_7,
		_8,
		_9
	)	CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6), ID(_7), ID(_8), ID(_9))

Definition at line 94 of file mov_chan.c.

◆ CHLIST16

#define CHLIST16	(	_0,
		_1,
		_2,
		_3,
		_4,
		_5,
		_6,
		_7,
		_8,
		_9,
		_10,
		_11,
		_12,
		_13,
		_14,
		_15,
		_16
	)

Value:

CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6), ID(_7), ID(_8), ID(_9), ID(_10), \

ID(_11), ID(_12), ID(_13), ID(_14), ID(_15), ID(_16))

Definition at line 95 of file mov_chan.c.

◆ CHLIST21

#define CHLIST21	(	_0,
		_1,
		_2,
		_3,
		_4,
		_5,
		_6,
		_7,
		_8,
		_9,
		_10,
		_11,
		_12,
		_13,
		_14,
		_15,
		_16,
		_17,
		_18,
		_19,
		_20,
		_21
	)

Value:

CHLIST(_0, ID(_1), ID(_2), ID(_3), ID(_4), ID(_5), ID(_6), ID(_7), ID(_8), ID(_9), ID(_10), \

ID(_11), ID(_12), ID(_13), ID(_14), ID(_15), ID(_16), ID(_17), ID(_18), ID(_19), ID(_20), ID(_21))

Definition at line 98 of file mov_chan.c.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

mov 'chan' tag reading/writing.

Author: Justin Ruggles

Enumerator
c_L
c_R
c_C
c_LFE
c_Rls
c_Rrs
c_Lc
c_Rc
c_Cs
c_Ls
c_Rs
c_Ts
c_Vhl
c_Vhc
c_Vhr
c_Rlt
c_Rrt
c_Lt
c_Rt
c_Lw
c_Rw
c_Lsd
c_Rsd
c_LFE2
c_W
c_Y
c_Z
c_X
c_LFE1
c_Csd
c_HI
c_VI
c_Haptic

Definition at line 33 of file mov_chan.c.

Function Documentation

◆ find_layout_map()

static const struct MovChannelLayoutMap* find_layout_map ( uint32_t tag )

static

Definition at line 281 of file mov_chan.c.

Referenced by ff_mov_get_channel_layout_tag(), and mov_get_channel_layout().

◆ mov_get_channel_layout()

static int mov_get_channel_layout	(	AVChannelLayout *	ch_layout,
		uint32_t	tag
	)

static

Get the channel layout for the specified non-special channel layout tag if known.

Parameters

[in,out]	ch_layout	channel layout
[in]	tag	channel layout tag

Returns: <0 on error

Definition at line 305 of file mov_chan.c.

Referenced by ff_mov_read_chan().

◆ mov_get_channel_id()

static enum AVChannel mov_get_channel_id ( uint32_t label )

static

Definition at line 329 of file mov_chan.c.

Referenced by ff_mov_read_chan().

◆ mov_get_channel_label()

static uint32_t mov_get_channel_label ( enum AVChannel channel )

static

Definition at line 348 of file mov_chan.c.

Referenced by ff_mov_get_channel_layout_tag().

◆ ff_mov_get_channel_layout_tag()

int ff_mov_get_channel_layout_tag	(	const AVCodecParameters *	par,
		uint32_t *	layout,
		uint32_t *	bitmap,
		uint32_t **	pchannel_desc
	)

Get the channel layout tag for the specified codec id and channel layout.

If the layout tag was not found, use a channel bitmap if possible.

Parameters

[in]	codec_id	codec id
[in]	channel_layout	channel layout
[out]	bitmap	channel bitmap

Returns: channel layout tag

Definition at line 367 of file mov_chan.c.

Referenced by mov_write_chan_tag().

◆ ff_mov_read_chan()

int ff_mov_read_chan	(	AVFormatContext *	s,
		AVIOContext *	pb,
		AVStream *	st,
		int64_t	size
	)

Read 'chan' tag from the input stream.

Parameters

s	AVFormatContext
pb	AVIOContext
st	The stream to set codec values for
size	Remaining size in the 'chan' tag

Returns: 0 if ok, or negative AVERROR code on failure

Definition at line 443 of file mov_chan.c.

Referenced by aiff_read_header(), mov_read_chan(), and read_header().

◆ ff_mov_get_channel_config_from_layout()

int ff_mov_get_channel_config_from_layout	(	const AVChannelLayout *	layout,
		int *	config
	)

Get ISO/IEC 23001-8 ChannelConfiguration from AVChannelLayout.

Definition at line 724 of file mov_chan.c.

Referenced by mov_write_chnl_tag().

◆ ff_mov_get_channel_layout_from_config()

int ff_mov_get_channel_layout_from_config	(	int	config,
		AVChannelLayout *	layout
	)

Get AVChannelLayout from ISO/IEC 23001-8 ChannelConfiguration.

Returns: 0 for success, -1 for doesn't match, layout is untouched on failure

Definition at line 738 of file mov_chan.c.

Referenced by ff_mov_read_chnl().

◆ ff_mov_get_channel_positions_from_layout()

int ff_mov_get_channel_positions_from_layout	(	const AVChannelLayout *	layout,
		uint8_t *	position,
		int	position_num
	)

Get ISO/IEC 23001-8 OutputChannelPosition from AVChannelLayout.

Definition at line 748 of file mov_chan.c.

Referenced by mov_write_chnl_tag().

◆ ff_mov_read_chnl()

int ff_mov_read_chnl	(	AVFormatContext *	s,
		AVIOContext *	pb,
		AVStream *	st
	)

Read 'chnl' tag from the input stream.

Parameters

s	AVFormatContext
pb	AVIOContext
st	The stream to set codec values for

Returns: 0 if ok, or negative AVERROR code on failure

Definition at line 775 of file mov_chan.c.

Referenced by mov_read_chnl().

Variable Documentation

◆ mov_ch_layout_map

const struct MovChannelLayoutMap mov_ch_layout_map[]

static

Definition at line 102 of file mov_chan.c.

Referenced by find_layout_map().

◆ mov_ch_layouts_aac

enum MovChannelLayoutTag mov_ch_layouts_aac[]

static

◆ mov_ch_layouts_ac3

enum MovChannelLayoutTag mov_ch_layouts_ac3[]

static

Initial value:

= {
    MOV_CH_LAYOUT_MONO,
    MOV_CH_LAYOUT_STEREO,
    MOV_CH_LAYOUT_AC3_1_0_1,
    MOV_CH_LAYOUT_AC3_3_0,
    MOV_CH_LAYOUT_ITU_2_1,
    MOV_CH_LAYOUT_DVD_4,
    MOV_CH_LAYOUT_AC3_3_1,
    MOV_CH_LAYOUT_ITU_2_2,
    MOV_CH_LAYOUT_AC3_2_1_1,
    MOV_CH_LAYOUT_AC3_3_0_1,
    MOV_CH_LAYOUT_MPEG_5_0_C,
    MOV_CH_LAYOUT_DVD_18,
    MOV_CH_LAYOUT_AC3_3_1_1,
    MOV_CH_LAYOUT_MPEG_5_1_C,
    0,
}

Definition at line 214 of file mov_chan.c.

◆ mov_ch_layouts_alac

enum MovChannelLayoutTag mov_ch_layouts_alac[]

static

Initial value:

= {
    MOV_CH_LAYOUT_MONO,
    MOV_CH_LAYOUT_STEREO,
    MOV_CH_LAYOUT_MPEG_3_0_B,
    MOV_CH_LAYOUT_MPEG_4_0_B,
    MOV_CH_LAYOUT_MPEG_5_0_D,
    MOV_CH_LAYOUT_MPEG_5_1_D,
    MOV_CH_LAYOUT_AAC_6_1,
    MOV_CH_LAYOUT_MPEG_7_1_B,
    0,
}

Definition at line 232 of file mov_chan.c.

◆ mov_ch_layouts_wav

enum MovChannelLayoutTag mov_ch_layouts_wav[]

static

Initial value:

= {
    MOV_CH_LAYOUT_MONO,
    MOV_CH_LAYOUT_STEREO,
    MOV_CH_LAYOUT_MATRIXSTEREO,
    MOV_CH_LAYOUT_MPEG_3_0_A,
    MOV_CH_LAYOUT_QUADRAPHONIC,
    MOV_CH_LAYOUT_MPEG_5_0_A,
    MOV_CH_LAYOUT_MPEG_5_1_A,
    MOV_CH_LAYOUT_MPEG_6_1_A,
    MOV_CH_LAYOUT_MPEG_7_1_A,
    MOV_CH_LAYOUT_MPEG_7_1_C,
    MOV_CH_LAYOUT_SMPTE_DTV,
    0,
}

Definition at line 244 of file mov_chan.c.

◆ codec_id

enum AVCodecID codec_id

Definition at line 260 of file mov_chan.c.

Referenced by ff_mov_get_channel_layout_tag().

◆ layouts

enum MovChannelLayoutTag* layouts

Definition at line 261 of file mov_chan.c.

Referenced by aeval_query_formats(), asink_query_formats(), ff_mov_get_channel_layout_tag(), ff_mov_write_chan(), join_query_formats(), main(), print_formats_internal(), and query_formats().

◆ mov_codec_ch_layouts

const { ... } mov_codec_ch_layouts[]

Initial value:

= {
    { AV_CODEC_ID_AAC,     mov_ch_layouts_aac      },
    { AV_CODEC_ID_AC3,     mov_ch_layouts_ac3      },
    { AV_CODEC_ID_ALAC,    mov_ch_layouts_alac     },
    { AV_CODEC_ID_PCM_U8,    mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_S8,    mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_S16LE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_S16BE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_S24LE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_S24BE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_S32LE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_S32BE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_F32LE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_F32BE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_F64LE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_PCM_F64BE, mov_ch_layouts_wav    },
    { AV_CODEC_ID_NONE,    NULL                    },
}

Referenced by ff_mov_get_channel_layout_tag().

◆ iso_channel_configuration

const AVChannelLayout iso_channel_configuration[]

static

Definition at line 540 of file mov_chan.c.

Referenced by ff_mov_get_channel_config_from_layout(), and ff_mov_get_channel_layout_from_config().

◆ iso_channel_position

enum AVChannel iso_channel_position[]

static

Definition at line 594 of file mov_chan.c.

Referenced by ff_mov_get_channel_positions_from_layout(), and ff_mov_read_chnl().

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ TAG

◆ ID

◆ CHLIST

◆ CHLIST01

◆ CHLIST02

◆ CHLIST03

◆ CHLIST04

◆ CHLIST05

◆ CHLIST06

◆ CHLIST07

◆ CHLIST08

◆ CHLIST09

◆ CHLIST16

◆ CHLIST21

Enumeration Type Documentation

◆ anonymous enum

Function Documentation

◆ find_layout_map()

◆ mov_get_channel_layout()

◆ mov_get_channel_id()

◆ mov_get_channel_label()

◆ ff_mov_get_channel_layout_tag()

◆ ff_mov_read_chan()

◆ ff_mov_get_channel_config_from_layout()

◆ ff_mov_get_channel_layout_from_config()

◆ ff_mov_get_channel_positions_from_layout()

◆ ff_mov_read_chnl()

Variable Documentation

◆ mov_ch_layout_map

◆ mov_ch_layouts_aac

◆ mov_ch_layouts_ac3

◆ mov_ch_layouts_alac

◆ mov_ch_layouts_wav

◆ codec_id

◆ layouts

◆ mov_codec_ch_layouts

◆ iso_channel_configuration

◆ iso_channel_position