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Related Modules:
Description:
Provides attribute-related APIs for audio rendering or capturing, including functions to obtain frame information and set audio sampling attributes.
Since:
1.0
Version:
1.0
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GetFrameSize )(AudioHandle handle, uint64_t *size) |
Obtains the audio frame size, that is, the length (in bytes) of a frame. |
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GetFrameCount )(AudioHandle handle, uint64_t *count) |
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SetSampleAttributes )(AudioHandle handle, const struct AudioSampleAttributes *attrs) |
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GetSampleAttributes )(AudioHandle handle, struct AudioSampleAttributes *attrs) |
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GetCurrentChannelId )(AudioHandle handle, uint32_t *channelId) |
int32_t(* AudioAttribute::GetCurrentChannelId) ([AudioHandle](Audio.md#ga18675ddb073465fdeac33a897f675d79) handle, uint32_t *channelId)
Description:
Obtains the data channel ID of the audio.
Parameters:
| handle | Indicates the audio handle. |
| channelId | Indicates the pointer to the data channel ID. |
Returns:
Returns 0 if the data channel ID is obtained; returns a negative value otherwise.
int32_t(* AudioAttribute::GetFrameCount) ([AudioHandle](Audio.md#ga18675ddb073465fdeac33a897f675d79) handle, uint64_t *count)
Description:
Obtains the number of audio frames in the audio buffer.
Parameters:
| handle | Indicates the audio handle. |
| count | Indicates the pointer to the number of audio frames in the audio buffer. |
Returns:
Returns 0 if the number of audio frames is obtained; returns a negative value otherwise.
int32_t(* AudioAttribute::GetFrameSize) ([AudioHandle](Audio.md#ga18675ddb073465fdeac33a897f675d79) handle, uint64_t *size)
Description:
Obtains the audio frame size, that is, the length (in bytes) of a frame.
Parameters:
| handle | Indicates the audio handle. |
| size | Indicates the pointer to the audio frame size (in bytes). |
Returns:
Returns 0 if the audio frame size is obtained; returns a negative value otherwise.
int32_t(* AudioAttribute::GetSampleAttributes) ([AudioHandle](Audio.md#ga18675ddb073465fdeac33a897f675d79) handle, struct [AudioSampleAttributes](AudioSampleAttributes.md) *attrs)
Description:
Obtains audio sampling attributes.
Parameters:
| handle | Indicates the audio handle. |
| attrs | Indicates the pointer to the audio sampling attributes, such as the sampling rate, sampling precision, and channel. |
Returns:
Returns 0 if audio sampling attributes are obtained; returns a negative value otherwise.
See also:
int32_t(* AudioAttribute::SetSampleAttributes) ([AudioHandle](Audio.md#ga18675ddb073465fdeac33a897f675d79) handle, const struct [AudioSampleAttributes](AudioSampleAttributes.md) *attrs)
Description:
Sets audio sampling attributes.
Parameters:
| handle | Indicates the audio handle. |
| attrs | Indicates the pointer to the audio sampling attributes to set, such as the sampling rate, sampling precision, and channel. |
Returns:
Returns 0 if the setting is successful; returns a negative value otherwise.
See also:
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