代码拉取完成，页面将自动刷新
同步操作将从 OpenHarmony/docs 强制同步，此操作会覆盖自 Fork 仓库以来所做的任何修改，且无法恢复！！！
确定后同步将在后台操作，完成时将刷新页面，请耐心等待。
Related Modules:
Description:
Provides capabilities for audio rendering, including controlling the rendering, setting audio attributes, scenes, and volume, obtaining hardware latency, and rendering audio frames.
Since:
1.0
Version:
1.0
|
struct AudioControl Defines the audio control. For details, see AudioControl. |
|
|
struct AudioAttribute Defines the audio attribute. For details, see AudioAttribute. |
|
|
struct AudioScene Defines the audio scene. For details, see AudioScene. |
|
|
struct AudioVolume Defines audio volume. For details, see AudioVolume. |
|
|
GetLatency )(struct AudioRender *render, uint32_t *ms) |
|
|
RenderFrame )(struct AudioRender *render, const void *frame, uint64_t requestBytes, uint64_t *replyBytes) |
Writes a frame of output data (downlink data) into the audio driver for rendering. |
|
GetRenderPosition )(struct AudioRender *render, uint64_t *frames, struct AudioTimeStamp *time) |
|
|
SetRenderSpeed )(struct AudioRender *render, float speed) |
|
|
GetRenderSpeed )(struct AudioRender *render, float *speed) |
|
|
SetChannelMode )(struct AudioRender *render, enum AudioChannelMode mode) |
|
|
GetChannelMode )(struct AudioRender *render, enum AudioChannelMode *mode) |
int32_t(* AudioRender::GetChannelMode) (struct [AudioRender](AudioRender.md) *render, enum [AudioChannelMode](Audio.md#ga78aab1fafb9657451804e42b42897123) *mode)
Description:
Obtains the current channel mode for audio rendering.
Parameters:
| render | Indicates the pointer to the AudioRender object to operate. |
| mode | Indicates the pointer to the channel mode to obtain. |
Returns:
Returns 0 if the mode is successfully obtained; returns a negative value otherwise.
See also:
int32_t(* AudioRender::GetLatency) (struct [AudioRender](AudioRender.md) *render, uint32_t *ms)
Description:
Obtains the estimated latency of the audio device driver.
Parameters:
| render | Indicates the pointer to the AudioRender object to operate. |
| ms | Indicates the pointer to the latency (in milliseconds) to be obtained. |
Returns:
Returns 0 if the latency is obtained; returns a negative value otherwise.
int32_t(* AudioRender::GetRenderPosition) (struct [AudioRender](AudioRender.md) *render, uint64_t *frames, struct [AudioTimeStamp](AudioTimeStamp.md) *[time](zh-cn_topic_0000001054879478.md#gae7841e681c8c9d59818568d39553642c))
Description:
Obtains the last number of output audio frames.
Parameters:
| render | Indicates the pointer to the AudioRender object to operate. |
| frames | Indicates the pointer to the last number of output audio frames. |
| time | Indicates the pointer to the timestamp associated with the frame. |
Returns:
Returns 0 if the last number is obtained; returns a negative value otherwise.
See also:
int32_t(* AudioRender::GetRenderSpeed) (struct [AudioRender](AudioRender.md) *render, float *speed)
Description:
Obtains the current audio rendering speed.
Parameters:
| render | Indicates the pointer to the AudioRender object to operate. |
| speed | Indicates the pointer to the current rendering speed to obtain. |
Returns:
Returns 0 if the speed is successfully obtained; returns a negative value otherwise.
See also:
int32_t(* AudioRender::RenderFrame) (struct [AudioRender](AudioRender.md) *render, const void *frame, uint64_t requestBytes, uint64_t *replyBytes)
Description:
Writes a frame of output data (downlink data) into the audio driver for rendering.
Parameters:
| render | Indicates the pointer to the AudioRender object to operate. |
| frame | Indicates the pointer to the frame to write. |
| requestBytes | Indicates the size of the frame, in bytes. |
| replyBytes | Indicates the pointer to the actual length (in bytes) of the audio data to write. |
Returns:
Returns 0 if the data is written successfully; returns a negative value otherwise.
int32_t(* AudioRender::SetChannelMode) (struct [AudioRender](AudioRender.md) *render, enum [AudioChannelMode](Audio.md#ga78aab1fafb9657451804e42b42897123) mode)
Description:
Sets the channel mode for audio rendering.
Parameters:
| render | Indicates the pointer to the AudioRender object to operate. |
| mode | Indicates the channel mode to set. |
Returns:
Returns 0 if the setting is successful; returns a negative value otherwise.
See also:
int32_t(* AudioRender::SetRenderSpeed) (struct [AudioRender](AudioRender.md) *render, float speed)
Description:
Sets the audio rendering speed.
Parameters:
| render | Indicates the pointer to the AudioRender object to operate. |
| speed | Indicates the rendering speed to set. |
Returns:
Returns 0 if the setting is successful; returns a negative value otherwise.
See also:
此处可能存在不合适展示的内容，页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容，可点击提交进行申诉，我们将尽快为您处理。