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

Data Structures
struct	MovChannelLayoutMap
	mov 'chan' tag reading/writing. More...

Functions
static uint64_t	mov_get_channel_layout (uint32_t tag, uint32_t bitmap)
	Get the channel layout for the specified channel layout tag. More...

static uint64_t	mov_get_channel_mask (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_get_layout_from_channel_positions (const uint8_t position, int position_num, AVChannelLayout layout)
	Get AVChannelLayout from ISO/IEC 23001-8 OutputChannelPosition. More...

Variables
static const struct MovChannelLayoutMap	mov_ch_layout_map_misc []

static const struct MovChannelLayoutMap	mov_ch_layout_map_1ch []

static const struct MovChannelLayoutMap	mov_ch_layout_map_2ch []

static const struct MovChannelLayoutMap	mov_ch_layout_map_3ch []

static const struct MovChannelLayoutMap	mov_ch_layout_map_4ch []

static const struct MovChannelLayoutMap	mov_ch_layout_map_5ch []

static const struct MovChannelLayoutMap	mov_ch_layout_map_6ch []

static const struct MovChannelLayoutMap	mov_ch_layout_map_7ch []

static const struct MovChannelLayoutMap	mov_ch_layout_map_8ch []

static const struct MovChannelLayoutMap	mov_ch_layout_map_9ch []

static const struct MovChannelLayoutMap *const	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 []

Function Documentation

◆ mov_get_channel_layout()

static uint64_t mov_get_channel_layout	(	uint32_t	tag,
		uint32_t	bitmap
	)

static

Get the channel layout for the specified channel layout tag.

Parameters

[in]	tag	channel layout tag
[out]	bitmap	channel bitmap (only used if needed)

Returns: channel layout

Definition at line 353 of file mov_chan.c.

Referenced by ff_mov_read_chan().

◆ mov_get_channel_mask()

static uint64_t mov_get_channel_mask ( uint32_t label )

static

Definition at line 380 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 399 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 418 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 496 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 745 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 759 of file mov_chan.c.

Referenced by 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 769 of file mov_chan.c.

Referenced by mov_write_chnl_tag().

◆ ff_mov_get_layout_from_channel_positions()

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

Get AVChannelLayout from ISO/IEC 23001-8 OutputChannelPosition.

Definition at line 796 of file mov_chan.c.

Referenced by mov_read_chnl().

Variable Documentation

◆ mov_ch_layout_map_misc

const struct MovChannelLayoutMap mov_ch_layout_map_misc[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_USE_DESCRIPTIONS,   0 },
    { MOV_CH_LAYOUT_USE_BITMAP,         0 },
    { MOV_CH_LAYOUT_DISCRETEINORDER,    0 },
    { MOV_CH_LAYOUT_UNKNOWN,            0 },
    { MOV_CH_LAYOUT_TMH_10_2_STD,       0 }, 
                                             
                                             
    { MOV_CH_LAYOUT_TMH_10_2_FULL,      0 }, 
                                             
                                             
                                             
    { 0, 0 },
}

Definition at line 37 of file mov_chan.c.

◆ mov_ch_layout_map_1ch

const struct MovChannelLayoutMap mov_ch_layout_map_1ch[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_MONO,               AV_CH_LAYOUT_MONO }, 
    { 0, 0 },
}

Definition at line 52 of file mov_chan.c.

◆ mov_ch_layout_map_2ch

const struct MovChannelLayoutMap mov_ch_layout_map_2ch[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_STEREO,             AV_CH_LAYOUT_STEREO         }, 
    { MOV_CH_LAYOUT_STEREOHEADPHONES,   AV_CH_LAYOUT_STEREO         }, 
    { MOV_CH_LAYOUT_BINAURAL,           AV_CH_LAYOUT_STEREO         }, 
    { MOV_CH_LAYOUT_MIDSIDE,            AV_CH_LAYOUT_STEREO         }, 
    { MOV_CH_LAYOUT_XY,                 AV_CH_LAYOUT_STEREO         }, 
 
    { MOV_CH_LAYOUT_MATRIXSTEREO,       AV_CH_LAYOUT_STEREO_DOWNMIX }, 
 
    { MOV_CH_LAYOUT_AC3_1_0_1,          AV_CH_LAYOUT_MONO |            
                                        AV_CH_LOW_FREQUENCY         },
    { 0, 0 },
}

Definition at line 57 of file mov_chan.c.

◆ mov_ch_layout_map_3ch

const struct MovChannelLayoutMap mov_ch_layout_map_3ch[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_MPEG_3_0_A,         AV_CH_LAYOUT_SURROUND }, 
    { MOV_CH_LAYOUT_MPEG_3_0_B,         AV_CH_LAYOUT_SURROUND }, 
    { MOV_CH_LAYOUT_AC3_3_0,            AV_CH_LAYOUT_SURROUND }, 
 
    { MOV_CH_LAYOUT_ITU_2_1,            AV_CH_LAYOUT_2_1      }, 
 
    { MOV_CH_LAYOUT_DVD_4,              AV_CH_LAYOUT_2POINT1  }, 
    { 0, 0 },
}

Definition at line 71 of file mov_chan.c.

◆ mov_ch_layout_map_4ch

const struct MovChannelLayoutMap mov_ch_layout_map_4ch[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_AMBISONIC_B_FORMAT, 0 },                    
 
    { MOV_CH_LAYOUT_QUADRAPHONIC,       AV_CH_LAYOUT_QUAD    }, 
 
    { MOV_CH_LAYOUT_MPEG_4_0_A,         AV_CH_LAYOUT_4POINT0 }, 
    { MOV_CH_LAYOUT_MPEG_4_0_B,         AV_CH_LAYOUT_4POINT0 }, 
    { MOV_CH_LAYOUT_AC3_3_1,            AV_CH_LAYOUT_4POINT0 }, 
 
    { MOV_CH_LAYOUT_ITU_2_2,            AV_CH_LAYOUT_2_2     }, 
 
    { MOV_CH_LAYOUT_DVD_5,              AV_CH_LAYOUT_2_1 |      
                                        AV_CH_LOW_FREQUENCY  },
    { MOV_CH_LAYOUT_AC3_2_1_1,          AV_CH_LAYOUT_2_1 |      
                                        AV_CH_LOW_FREQUENCY  },
 
    { MOV_CH_LAYOUT_DVD_10,             AV_CH_LAYOUT_3POINT1 }, 
    { MOV_CH_LAYOUT_AC3_3_0_1,          AV_CH_LAYOUT_3POINT1 }, 
    { MOV_CH_LAYOUT_DTS_3_1,            AV_CH_LAYOUT_3POINT1 }, 
    { 0, 0 },
}

Definition at line 82 of file mov_chan.c.

◆ mov_ch_layout_map_5ch

const struct MovChannelLayoutMap mov_ch_layout_map_5ch[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_PENTAGONAL,         AV_CH_LAYOUT_5POINT0_BACK }, 
 
    { MOV_CH_LAYOUT_MPEG_5_0_A,         AV_CH_LAYOUT_5POINT0 },      
    { MOV_CH_LAYOUT_MPEG_5_0_B,         AV_CH_LAYOUT_5POINT0 },      
    { MOV_CH_LAYOUT_MPEG_5_0_C,         AV_CH_LAYOUT_5POINT0 },      
    { MOV_CH_LAYOUT_MPEG_5_0_D,         AV_CH_LAYOUT_5POINT0 },      
 
    { MOV_CH_LAYOUT_DVD_6,              AV_CH_LAYOUT_2_2 |           
                                        AV_CH_LOW_FREQUENCY },
    { MOV_CH_LAYOUT_DVD_18,             AV_CH_LAYOUT_2_2 |           
                                        AV_CH_LOW_FREQUENCY },
 
    { MOV_CH_LAYOUT_DVD_11,             AV_CH_LAYOUT_4POINT1 },      
    { MOV_CH_LAYOUT_AC3_3_1_1,          AV_CH_LAYOUT_4POINT1 },      
    { MOV_CH_LAYOUT_DTS_4_1,            AV_CH_LAYOUT_4POINT1 },      
    { 0, 0 },
}

Definition at line 104 of file mov_chan.c.

◆ mov_ch_layout_map_6ch

const struct MovChannelLayoutMap mov_ch_layout_map_6ch[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_HEXAGONAL,          AV_CH_LAYOUT_HEXAGONAL },      
    { MOV_CH_LAYOUT_DTS_6_0_C,          AV_CH_LAYOUT_HEXAGONAL },      
 
    { MOV_CH_LAYOUT_MPEG_5_1_A,         AV_CH_LAYOUT_5POINT1 },        
    { MOV_CH_LAYOUT_MPEG_5_1_B,         AV_CH_LAYOUT_5POINT1 },        
    { MOV_CH_LAYOUT_MPEG_5_1_C,         AV_CH_LAYOUT_5POINT1 },        
    { MOV_CH_LAYOUT_MPEG_5_1_D,         AV_CH_LAYOUT_5POINT1 },        
 
    { MOV_CH_LAYOUT_AUDIOUNIT_6_0,      AV_CH_LAYOUT_6POINT0 },        
    { MOV_CH_LAYOUT_AAC_6_0,            AV_CH_LAYOUT_6POINT0 },        
    { MOV_CH_LAYOUT_EAC3_6_0_A,         AV_CH_LAYOUT_6POINT0 },        
 
    { MOV_CH_LAYOUT_DTS_6_0_A,          AV_CH_LAYOUT_6POINT0_FRONT },  
 
    { MOV_CH_LAYOUT_DTS_6_0_B,          AV_CH_LAYOUT_5POINT0_BACK |    
                                        AV_CH_TOP_CENTER },
    { 0, 0 },
}

Definition at line 123 of file mov_chan.c.

◆ mov_ch_layout_map_7ch

const struct MovChannelLayoutMap mov_ch_layout_map_7ch[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_MPEG_6_1_A,          AV_CH_LAYOUT_6POINT1 },        
    { MOV_CH_LAYOUT_AAC_6_1,             AV_CH_LAYOUT_6POINT1 },        
    { MOV_CH_LAYOUT_EAC3_6_1_A,          AV_CH_LAYOUT_6POINT1 },        
    { MOV_CH_LAYOUT_DTS_6_1_D,           AV_CH_LAYOUT_6POINT1 },        
 
    { MOV_CH_LAYOUT_AUDIOUNIT_7_0,       AV_CH_LAYOUT_7POINT0 },        
    { MOV_CH_LAYOUT_AAC_7_0,             AV_CH_LAYOUT_7POINT0 },        
    { MOV_CH_LAYOUT_EAC3_7_0_A,          AV_CH_LAYOUT_7POINT0 },        
 
    { MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT, AV_CH_LAYOUT_7POINT0_FRONT },  
    { MOV_CH_LAYOUT_DTS_7_0,             AV_CH_LAYOUT_7POINT0_FRONT },  
 
    { MOV_CH_LAYOUT_EAC3_6_1_B,          AV_CH_LAYOUT_5POINT1 |         
                                         AV_CH_TOP_CENTER },
 
    { MOV_CH_LAYOUT_EAC3_6_1_C,          AV_CH_LAYOUT_5POINT1 |         
                                         AV_CH_TOP_FRONT_CENTER },
 
    { MOV_CH_LAYOUT_DTS_6_1_A,           AV_CH_LAYOUT_6POINT1_FRONT },  
 
    { MOV_CH_LAYOUT_DTS_6_1_B,           AV_CH_LAYOUT_5POINT1_BACK |    
                                         AV_CH_TOP_CENTER },
 
    { MOV_CH_LAYOUT_DTS_6_1_C,           AV_CH_LAYOUT_6POINT1_BACK },   
    { 0, 0 },
}

Definition at line 143 of file mov_chan.c.

◆ mov_ch_layout_map_8ch

const struct MovChannelLayoutMap mov_ch_layout_map_8ch[]

static

Definition at line 171 of file mov_chan.c.

◆ mov_ch_layout_map_9ch

const struct MovChannelLayoutMap mov_ch_layout_map_9ch[]

static

Initial value:

= {
    { MOV_CH_LAYOUT_DTS_8_1_A,           AV_CH_LAYOUT_2_2            | 
                                         AV_CH_BACK_LEFT             |
                                         AV_CH_BACK_RIGHT            |
                                         AV_CH_FRONT_LEFT_OF_CENTER  |
                                         AV_CH_FRONT_RIGHT_OF_CENTER |
                                         AV_CH_LOW_FREQUENCY },
 
    { MOV_CH_LAYOUT_DTS_8_1_B,           AV_CH_LAYOUT_7POINT1_WIDE   | 
                                         AV_CH_BACK_CENTER },
    { 0, 0 },
}

Definition at line 226 of file mov_chan.c.

◆ mov_ch_layout_map

const struct MovChannelLayoutMap* const mov_ch_layout_map[]

static

Initial value:

= {
    mov_ch_layout_map_misc,
    mov_ch_layout_map_1ch,
    mov_ch_layout_map_2ch,
    mov_ch_layout_map_3ch,
    mov_ch_layout_map_4ch,
    mov_ch_layout_map_5ch,
    mov_ch_layout_map_6ch,
    mov_ch_layout_map_7ch,
    mov_ch_layout_map_8ch,
    mov_ch_layout_map_9ch,
}

Definition at line 239 of file mov_chan.c.

Referenced by ff_mov_get_channel_layout_tag(), and mov_get_channel_layout().

◆ 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 279 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 297 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 309 of file mov_chan.c.

◆ codec_id

enum AVCodecID codec_id

Definition at line 325 of file mov_chan.c.

Referenced by ff_mov_get_channel_layout_tag().

◆ layouts

enum MovChannelLayoutTag* layouts

Definition at line 326 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(), 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 561 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 615 of file mov_chan.c.

Referenced by ff_mov_get_channel_positions_from_layout(), and ff_mov_get_layout_from_channel_positions().

Data Structures

Functions

Variables

Function Documentation

◆ mov_get_channel_layout()

◆ mov_get_channel_mask()

◆ 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_get_layout_from_channel_positions()

Variable Documentation

◆ mov_ch_layout_map_misc

◆ mov_ch_layout_map_1ch

◆ mov_ch_layout_map_2ch

◆ mov_ch_layout_map_3ch

◆ mov_ch_layout_map_4ch

◆ mov_ch_layout_map_5ch

◆ mov_ch_layout_map_6ch

◆ mov_ch_layout_map_7ch

◆ mov_ch_layout_map_8ch

◆ mov_ch_layout_map_9ch

◆ 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