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Macros | Enumerations
Audio channel convenience macros
Audio related

Macros

#define AV_CH_LAYOUT_MONO   (AV_CH_FRONT_CENTER)
 
#define AV_CH_LAYOUT_STEREO   (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT)
 
#define AV_CH_LAYOUT_2POINT1   (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY)
 
#define AV_CH_LAYOUT_2_1   (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)
 
#define AV_CH_LAYOUT_SURROUND   (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
 
#define AV_CH_LAYOUT_3POINT1   (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY)
 
#define AV_CH_LAYOUT_4POINT0   (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER)
 
#define AV_CH_LAYOUT_4POINT1   (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY)
 
#define AV_CH_LAYOUT_2_2   (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
 
#define AV_CH_LAYOUT_QUAD   (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
 
#define AV_CH_LAYOUT_5POINT0   (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
 
#define AV_CH_LAYOUT_5POINT1   (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY)
 
#define AV_CH_LAYOUT_5POINT0_BACK   (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
 
#define AV_CH_LAYOUT_5POINT1_BACK   (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY)
 
#define AV_CH_LAYOUT_6POINT0   (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER)
 
#define AV_CH_LAYOUT_6POINT0_FRONT   (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
 
#define AV_CH_LAYOUT_HEXAGONAL   (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER)
 
#define AV_CH_LAYOUT_6POINT1   (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER)
 
#define AV_CH_LAYOUT_6POINT1_BACK   (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER)
 
#define AV_CH_LAYOUT_6POINT1_FRONT   (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY)
 
#define AV_CH_LAYOUT_7POINT0   (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
 
#define AV_CH_LAYOUT_7POINT0_FRONT   (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
 
#define AV_CH_LAYOUT_7POINT1   (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
 
#define AV_CH_LAYOUT_7POINT1_WIDE   (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
 
#define AV_CH_LAYOUT_7POINT1_WIDE_BACK   (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
 
#define AV_CH_LAYOUT_OCTAGONAL   (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT)
 
#define AV_CH_LAYOUT_STEREO_DOWNMIX   (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)
 

Enumerations

enum  AVMatrixEncoding { AV_MATRIX_ENCODING_NONE, AV_MATRIX_ENCODING_DOLBY, AV_MATRIX_ENCODING_DPLII, AV_MATRIX_ENCODING_NB }
 

Detailed Description

Macro Definition Documentation

#define AV_CH_LAYOUT_MONO   (AV_CH_FRONT_CENTER)
Examples:
doc/examples/filtering_audio.c.

Definition at line 85 of file channel_layout.h.

Referenced by aea_read_header(), amf_parse_object(), amr_decode_fix_avctx(), amr_handle_packet(), amr_read_header(), amrnb_decode_init(), amrwb_decode_init(), apc_read_header(), ape_decode_init(), bfi_read_header(), cdxl_read_packet(), cin_read_header(), cinaudio_decode_init(), cook_decode_init(), create_audio_stream(), create_new_audio_stream(), decode_frame(), decode_init(), encode_init(), evrc_decode_init(), flv_read_packet(), g722_decode_init(), g723_1_decode_init(), g723_1_init(), get_sindex(), gsm_init(), gsm_read_header(), idcin_read_header(), iff_read_header(), ilbc_decode_init(), imc_decode_init(), init_filters(), ipmovie_read_header(), iss_read_header(), libgsm_decode_init(), libspeex_decode_init(), metasound_decode_init(), mmf_read_header(), mpc8_decode_init(), mpegps_read_packet(), mxg_read_header(), parse_mpeg1waveformatex(), pcm_bluray_decode_frame(), pcm_bluray_parse_header(), qcelp_decode_init(), qcp_read_header(), qdm2_decode_init(), query_formats(), ra144_decode_init(), ra288_decode_init(), read_header(), read_major_sync(), rm_read_audio_stream_info(), roq_read_packet(), rso_read_header(), seq_read_header(), set_channel_info(), set_channels(), sipr_decoder_init(), smacker_read_header(), smka_decode_init(), sol_read_header(), speex_header(), str_read_packet(), tmv_read_header(), truespeech_decode_init(), twinvq_decode_init(), vid_read_packet(), vmd_read_header(), vmdaudio_decode_init(), wavpack_decode_block(), wavpack_encode_block(), wc3_read_header(), wmavoice_decode_init(), ws_snd_decode_init(), wsaud_read_header(), wv_read_block_header(), and yop_read_header().

#define AV_CH_LAYOUT_STEREO   (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT)
#define AV_CH_LAYOUT_2POINT1   (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY)

Definition at line 87 of file channel_layout.h.

#define AV_CH_LAYOUT_2_1   (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)

Definition at line 88 of file channel_layout.h.

Referenced by pcm_bluray_decode_frame(), and pcm_bluray_parse_header().

#define AV_CH_LAYOUT_SURROUND   (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
#define AV_CH_LAYOUT_3POINT1   (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY)

Definition at line 90 of file channel_layout.h.

#define AV_CH_LAYOUT_4POINT0   (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_4POINT1   (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY)

Definition at line 92 of file channel_layout.h.

#define AV_CH_LAYOUT_2_2   (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
#define AV_CH_LAYOUT_QUAD   (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_5POINT0   (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
#define AV_CH_LAYOUT_5POINT1   (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_5POINT0_BACK   (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_5POINT1_BACK   (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_6POINT0   (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER)

Definition at line 99 of file channel_layout.h.

#define AV_CH_LAYOUT_6POINT0_FRONT   (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)

Definition at line 100 of file channel_layout.h.

#define AV_CH_LAYOUT_HEXAGONAL   (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER)

Definition at line 101 of file channel_layout.h.

#define AV_CH_LAYOUT_6POINT1   (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER)

Definition at line 102 of file channel_layout.h.

#define AV_CH_LAYOUT_6POINT1_BACK   (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER)

Definition at line 103 of file channel_layout.h.

#define AV_CH_LAYOUT_6POINT1_FRONT   (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY)

Definition at line 104 of file channel_layout.h.

#define AV_CH_LAYOUT_7POINT0   (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)

Definition at line 105 of file channel_layout.h.

Referenced by pcm_bluray_decode_frame(), and pcm_bluray_parse_header().

Definition at line 106 of file channel_layout.h.

#define AV_CH_LAYOUT_7POINT1   (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)

Definition at line 108 of file channel_layout.h.

Definition at line 109 of file channel_layout.h.

Definition at line 110 of file channel_layout.h.

#define AV_CH_LAYOUT_STEREO_DOWNMIX   (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)

Enumeration Type Documentation

Enumerator:
AV_MATRIX_ENCODING_NONE 
AV_MATRIX_ENCODING_DOLBY 
AV_MATRIX_ENCODING_DPLII 
AV_MATRIX_ENCODING_NB 

Definition at line 113 of file channel_layout.h.