native_audio_channel_layout.h
Overview
The file declares the functions related to the speaker layout during recording and playback.
File to include: <multimedia/native_audio_channel_layout.h>
Library: none
System capability: SystemCapability.Multimedia.Media.Core
Since: 11
Related module: Core
Summary
Enums
| Name | typedef Keyword | Description |
|---|---|---|
| OH_AudioChannelSet | OH_AudioChannelSet | Enumerates the audio channels. Each channel is mapped to a variable of int64. |
| OH_AmbAttributeSet | OH_AmbAttributeSet | Enumerates the Hi-Fi stereo reverberation settings. Int64 integers are used to indicate the Hi-Fi stereo reverberation attributes. |
| OH_AudioChannelLayout | OH_AudioChannelLayout | Enumerates the layouts of audio channels. Int64 integers are used to indicate the appearance and sequence of speakers during recording or playback. |
Enum Description
OH_AudioChannelSet
enum OH_AudioChannelSet
Description
Enumerates the audio channels.
Each channel is mapped to a variable of int64.
System capability: SystemCapability.Multimedia.Media.Core
Since: 11
| Value | Description |
|---|---|
| CH_SET_FRONT_LEFT = 1ULL << 0U | Front left channel. |
| CH_SET_FRONT_RIGHT = 1ULL << 1U | Front right channel. |
| CH_SET_FRONT_CENTER = 1ULL << 2U | Front center channel. |
| CH_SET_LOW_FREQUENCY = 1ULL << 3U | Low-frequency channel. |
| CH_SET_BACK_LEFT = 1ULL << 4U | Rear left channel. |
| CH_SET_BACK_RIGHT = 1ULL << 5U | Rear right channel. |
| CH_SET_FRONT_LEFT_OF_CENTER = 1ULL << 6U | Front left center channel. |
| CH_SET_FRONT_RIGHT_OF_CENTER = 1ULL << 7U | Front right center channel. |
| CH_SET_BACK_CENTER = 1ULL << 8U | Rear center channel. |
| CH_SET_SIDE_LEFT = 1ULL << 9U | Left channel. |
| CH_SET_SIDE_RIGHT = 1ULL << 10U | Right channel. |
| CH_SET_TOP_CENTER = 1ULL << 11U | Top center channel. |
| CH_SET_TOP_FRONT_LEFT = 1ULL << 12U | Top left front channel. |
| CH_SET_TOP_FRONT_CENTER = 1ULL << 13U | Top center front channel. |
| CH_SET_TOP_FRONT_RIGHT = 1ULL << 14U | Top right front channel. |
| CH_SET_TOP_BACK_LEFT = 1ULL << 15U | Top left rear channel. |
| CH_SET_TOP_BACK_CENTER = 1ULL << 16U | Top center rear channel. |
| CH_SET_TOP_BACK_RIGHT = 1ULL << 17U | Top right rear channel. |
| CH_SET_STEREO_LEFT = 1ULL << 29U | Stereo left channel. |
| CH_SET_STEREO_RIGHT = 1ULL << 30U | Stereo right channel. |
| CH_SET_WIDE_LEFT = 1ULL << 31U | Wide left channel. |
| CH_SET_WIDE_RIGHT = 1ULL << 32U | Wide right channel. |
| CH_SET_SURROUND_DIRECT_LEFT = 1ULL << 33U | Left surround channel. |
| CH_SET_SURROUND_DIRECT_RIGHT = 1ULL << 34U | Right surround channel. |
| CH_SET_LOW_FREQUENCY_2 = 1ULL << 35U | Low-frequency channel 2. |
| CH_SET_TOP_SIDE_LEFT = 1ULL << 36U | Top left channel. |
| CH_SET_TOP_SIDE_RIGHT = 1ULL << 37U | Top right channel. |
| CH_SET_BOTTOM_FRONT_CENTER = 1ULL << 38U | Bottom center front channel. |
| CH_SET_BOTTOM_FRONT_LEFT = 1ULL << 39U | Bottom left front channel. |
| CH_SET_BOTTOM_FRONT_RIGHT = 1ULL << 40U | Bottom right front channel. |
OH_AmbAttributeSet
enum OH_AmbAttributeSet
Description
Enumerates the Hi-Fi stereo reverberation settings.
Int64 integers are used to indicate the Hi-Fi stereo reverberation attributes.
System capability: SystemCapability.Multimedia.Media.Core
Since: 11
| Value | Description |
|---|---|
| AMB_ORD_1 = 1ULL << 0U | First-order Hi-Fi stereo reverberation. |
| AMB_ORD_2 = 2ULL << 0U | Second-order Hi-Fi stereo reverberation. |
| AMB_ORD_3 = 3ULL << 0U | Third-order Hi-Fi stereo reverberation. |
| AMB_COM_ACN = 0ULL << 8U | Hi-Fi stereo reverberation with ACN channel sorting. |
| AMB_COM_FUMA = 1ULL << 8U | Hi-Fi stereo reverberation with FUMA channel sorting. |
| AMB_NOR_N3D = 0ULL << 12U | N3D normalized Hi-Fi stereo reverberation. |
| AMB_NOR_SN3D = 1ULL << 12U | SN3D normalized Hi-Fi stereo reverberation. |
| AMB_MODE = 1ULL << 44U | Audio channel layout for Hi-Fi stereo reverberation. |
OH_AudioChannelLayout
enum OH_AudioChannelLayout
Description
Enumerates the layouts of audio channels.
Int64 integers are used to indicate the appearance and sequence of speakers during recording or playback.
System capability: SystemCapability.Multimedia.Media.Core
Since: 11
| Value | Description |
|---|---|
| CH_LAYOUT_UNKNOWN = 0ULL | Unknown. |
| CH_LAYOUT_MONO = CH_SET_FRONT_CENTER | Mono layout; 1 audio channel in total. |
| CH_LAYOUT_STEREO = CH_SET_FRONT_LEFT |CH_SET_FRONT_RIGHT | Stereo layout; 2 audio channels in total. |
| CH_LAYOUT_STEREO_DOWNMIX = CH_SET_STEREO_LEFT |CH_SET_STEREO_RIGHT | Stereo downmix layout; 2 audio channels in total. |
| CH_LAYOUT_2POINT1 = CH_LAYOUT_STEREO |CH_SET_LOW_FREQUENCY | 2.1 layout; 3 audio channels in total. |
| CH_LAYOUT_3POINT0 = CH_LAYOUT_STEREO |CH_SET_BACK_CENTER | 3.0 layout; 3 audio channels in total. |
| CH_LAYOUT_SURROUND = CH_LAYOUT_STEREO |CH_SET_FRONT_CENTER | Surround; 3 audio channels in total. |
| CH_LAYOUT_3POINT1 = CH_LAYOUT_SURROUND |CH_SET_LOW_FREQUENCY | 3.1 layout; 4 audio channels in total. |
| CH_LAYOUT_4POINT0 = CH_LAYOUT_SURROUND |CH_SET_BACK_CENTER | 4.0 layout; 4 audio channels in total. |
| CH_LAYOUT_QUAD_SIDE = CH_LAYOUT_STEREO |CH_SET_SIDE_LEFT |CH_SET_SIDE_RIGHT | Quad side layout; 4 audio channels in total. |
| CH_LAYOUT_QUAD = CH_LAYOUT_STEREO |CH_SET_BACK_LEFT |CH_SET_BACK_RIGHT | Quad layout; 4 audio channels in total. |
| CH_LAYOUT_2POINT0POINT2 = CH_LAYOUT_STEREO |CH_SET_TOP_SIDE_LEFT |CH_SET_TOP_SIDE_RIGHT | 2.0.2 layout; 4 audio channels in total. |
| CH_LAYOUT_AMB_ORDER1_ACN_N3D = AMB_MODE |AMB_ORD_1 |AMB_COM_ACN |AMB_NOR_N3D | First-order FOA layout in ACN_N3D (ITU standards); 4 audio channels in total. |
| CH_LAYOUT_AMB_ORDER1_ACN_SN3D = AMB_MODE |AMB_ORD_1 |AMB_COM_ACN |AMB_NOR_SN3D | First-order FOA layout in ACN_SN3D (ITU standards); 4 audio channels in total. |
| CH_LAYOUT_AMB_ORDER1_FUMA = AMB_MODE |AMB_ORD_1 |AMB_COM_FUMA | First-order FOA layout in FUMA (ITU standards); 4 audio channels in total. |
| CH_LAYOUT_4POINT1 = CH_LAYOUT_4POINT0 |CH_SET_LOW_FREQUENCY | 4.1 layout; 5 audio channels in total. |
| CH_LAYOUT_5POINT0 = CH_LAYOUT_SURROUND |CH_SET_SIDE_LEFT |CH_SET_SIDE_RIGHT | 5.0 layout; 5 audio channels in total. |
| CH_LAYOUT_5POINT0_BACK = CH_LAYOUT_SURROUND |CH_SET_BACK_LEFT |CH_SET_BACK_RIGHT | 5.0 rear layout; 5 audio channels in total. |
| CH_LAYOUT_2POINT1POINT2 = CH_LAYOUT_2POINT0POINT2 |CH_SET_LOW_FREQUENCY | 2.1.2 layout; 5 audio channels in total. |
| CH_LAYOUT_3POINT0POINT2 = CH_LAYOUT_2POINT0POINT2 |CH_SET_FRONT_CENTER | 3.0.2 layout; 5 audio channels in total. |
| CH_LAYOUT_5POINT1 = CH_LAYOUT_5POINT0 |CH_SET_LOW_FREQUENCY | 5.1 layout; 6 audio channels in total. |
| CH_LAYOUT_5POINT1_BACK = CH_LAYOUT_5POINT0_BACK |CH_SET_LOW_FREQUENCY | 5.1 rear layout; 6 audio channels in total. |
| CH_LAYOUT_6POINT0 = CH_LAYOUT_5POINT0 |CH_SET_BACK_CENTER | 6.0 layout; 6 audio channels in total. |
| CH_LAYOUT_3POINT1POINT2 = CH_LAYOUT_3POINT1 |CH_SET_TOP_FRONT_LEFT |CH_SET_TOP_FRONT_RIGHT | 3.1.2 layout; 6 audio channels in total. |
| CH_LAYOUT_6POINT0_FRONT = CH_LAYOUT_QUAD_SIDE |CH_SET_FRONT_LEFT_OF_CENTER |CH_SET_FRONT_RIGHT_OF_CENTER | 6.0 front layout; 6 audio channels in total. |
| CH_LAYOUT_HEXAGONAL = CH_LAYOUT_5POINT0_BACK |CH_SET_BACK_CENTER | Hexagonal layout; 6 audio channels in total. |
| CH_LAYOUT_6POINT1 = CH_LAYOUT_5POINT1 |CH_SET_BACK_CENTER | 6.1 layout; 7 audio channels in total. |
| CH_LAYOUT_6POINT1_BACK = CH_LAYOUT_5POINT1_BACK |CH_SET_BACK_CENTER | 6.1 rear layout; 7 audio channels in total. |
| CH_LAYOUT_6POINT1_FRONT = CH_LAYOUT_6POINT0_FRONT |CH_SET_LOW_FREQUENCY | 6.1 front layout; 7 audio channels in total. |
| CH_LAYOUT_7POINT0 = CH_LAYOUT_5POINT0 |CH_SET_BACK_LEFT |CH_SET_BACK_RIGHT | 7.0 layout; 7 audio channels in total. |
| CH_LAYOUT_7POINT0_FRONT = CH_LAYOUT_5POINT0 |CH_SET_FRONT_LEFT_OF_CENTER |CH_SET_FRONT_RIGHT_OF_CENTER | 7.0 front layout; 7 audio channels in total. |
| CH_LAYOUT_7POINT1 = CH_LAYOUT_5POINT1 |CH_SET_BACK_LEFT |CH_SET_BACK_RIGHT | 7.1 layout; 8 audio channels in total. |
| CH_LAYOUT_OCTAGONAL = CH_LAYOUT_5POINT0 |CH_SET_BACK_LEFT |CH_SET_BACK_CENTER |CH_SET_BACK_RIGHT | Octagonal layout; 8 audio channels in total. |
| CH_LAYOUT_5POINT1POINT2 = CH_LAYOUT_5POINT1 |CH_SET_TOP_SIDE_LEFT |CH_SET_TOP_SIDE_RIGHT | 5.1.2 layout; 8 audio channels in total. |
| CH_LAYOUT_7POINT1_WIDE = CH_LAYOUT_5POINT1 |CH_SET_FRONT_LEFT_OF_CENTER |CH_SET_FRONT_RIGHT_OF_CENTER | 7.1 wide layout; 8 audio channels in total. |
| CH_LAYOUT_7POINT1_WIDE_BACK = CH_LAYOUT_5POINT1_BACK |CH_SET_FRONT_LEFT_OF_CENTER |CH_SET_FRONT_RIGHT_OF_CENTER | 7.1 rear wide layout; 8 audio channels in total. |
| CH_LAYOUT_AMB_ORDER2_ACN_N3D = AMB_MODE |AMB_ORD_2 |AMB_COM_ACN |AMB_NOR_N3D | Second-order HOA layout in ACN_N3D (ITU standards); 9 audio channels in total. |
| CH_LAYOUT_AMB_ORDER2_ACN_SN3D = AMB_MODE |AMB_ORD_2 |AMB_COM_ACN |AMB_NOR_SN3D | Second-order HOA layout in ACN_SN3D (ITU standards); 9 audio channels in total. |
| CH_LAYOUT_AMB_ORDER2_FUMA = AMB_MODE |AMB_ORD_2 |AMB_COM_FUMA | Second-order HOA layout in FUMA (ITU standards); 9 audio channels in total. |
| CH_LAYOUT_5POINT1POINT4 = CH_LAYOUT_5POINT1 |CH_SET_TOP_FRONT_LEFT |CH_SET_TOP_FRONT_RIGHT |CH_SET_TOP_BACK_LEFT |CH_SET_TOP_BACK_RIGHT | 5.1.4 layout; 10 audio channels in total. |
| CH_LAYOUT_7POINT1POINT2 = CH_LAYOUT_7POINT1 |CH_SET_TOP_SIDE_LEFT |CH_SET_TOP_SIDE_RIGHT | 7.1.2 layout; 10 audio channels in total. |
| CH_LAYOUT_7POINT1POINT4 = CH_LAYOUT_7POINT1 |CH_SET_TOP_FRONT_LEFT |CH_SET_TOP_FRONT_RIGHT |CH_SET_TOP_BACK_LEFT |CH_SET_TOP_BACK_RIGHT | 7.1.4 layout; 12 audio channels in total. |
| CH_LAYOUT_10POINT2 = CH_SET_FRONT_LEFT |CH_SET_FRONT_RIGHT |CH_SET_FRONT_CENTER |CH_SET_TOP_FRONT_LEFT |CH_SET_TOP_FRONT_RIGHT |CH_SET_BACK_LEFT |CH_SET_BACK_RIGHT |CH_SET_BACK_CENTER |CH_SET_SIDE_LEFT |CH_SET_SIDE_RIGHT |CH_SET_WIDE_LEFT |CH_SET_WIDE_RIGHT | 10.2 layout; 12 audio channels in total. |
| CH_LAYOUT_9POINT1POINT4 = CH_LAYOUT_7POINT1POINT4 |CH_SET_WIDE_LEFT |CH_SET_WIDE_RIGHT | 9.1.4 layout; 14 audio channels in total. |
| CH_LAYOUT_9POINT1POINT6 = CH_LAYOUT_9POINT1POINT4 |CH_SET_TOP_SIDE_LEFT |CH_SET_TOP_SIDE_RIGHT | 9.1.6 layout; 16 audio channels in total. |
| CH_LAYOUT_HEXADECAGONAL = CH_LAYOUT_OCTAGONAL |CH_SET_WIDE_LEFT |CH_SET_WIDE_RIGHT |CH_SET_TOP_BACK_LEFT |CH_SET_TOP_BACK_RIGHT |CH_SET_TOP_BACK_CENTER |CH_SET_TOP_FRONT_CENTER |CH_SET_TOP_FRONT_LEFT |CH_SET_TOP_FRONT_RIGHT | Hexadecagonal layout; 16 audio channels in total. |
| CH_LAYOUT_AMB_ORDER3_ACN_N3D = AMB_MODE |AMB_ORD_3 |AMB_COM_ACN |AMB_NOR_N3D | Third-order HOA layout in ACN_N3D (ITU standards); 16 audio channels in total. |
| CH_LAYOUT_AMB_ORDER3_ACN_SN3D = AMB_MODE |AMB_ORD_3 |AMB_COM_ACN |AMB_NOR_SN3D | Third-order HOA layout in ACN_SN3D (ITU standards); 16 audio channels in total. |
| CH_LAYOUT_AMB_ORDER3_FUMA = AMB_MODE |AMB_ORD_3 |AMB_COM_FUMA | Third-order HOA layout in FUMA (ITU standards); 16 audio channels in total. |
| CH_LAYOUT_22POINT2 = CH_LAYOUT_7POINT1POINT4 |CH_SET_FRONT_LEFT_OF_CENTER |CH_SET_FRONT_RIGHT_OF_CENTER |CH_SET_BACK_CENTER |CH_SET_TOP_CENTER |CH_SET_TOP_FRONT_CENTER |CH_SET_TOP_BACK_CENTER |CH_SET_TOP_SIDE_LEFT |CH_SET_TOP_SIDE_RIGHT |CH_SET_BOTTOM_FRONT_LEFT |CH_SET_BOTTOM_FRONT_RIGHT |CH_SET_BOTTOM_FRONT_CENTER |CH_SET_LOW_FREQUENCY_2 | 22.2 layout; 24 audio channels in total. |
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