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Related Modules:
Description:
Defines callbacks and their parameters.
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OnEvent )(UINTPTR comp, UINTPTR appData, EventType event, uint32_t data1, uint32_t data2, UINTPTR eventData) |
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InputBufferAvailable )(UINTPTR comp, UINTPTR appData, InputInfo *inBuf) |
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OutputBufferAvailable )(UINTPTR comp, UINTPTR appData, OutputInfo *outBuf) |
int(* CodecCallback::InputBufferAvailable) ([UINTPTR](Codec.md#ga58d2f4a8d12daa1dcf4eb297f3ebaabc) comp, [UINTPTR](Codec.md#ga58d2f4a8d12daa1dcf4eb297f3ebaabc) appData, [InputInfo](InputInfo.md) *inBuf)
Description:
Reports that the input data has been used.
This callback is invoked in asynchronous mode.
Parameters:
| hComponent | Indicates the handle of the codec component. |
| pAppData | Indicates upper-layer data, which is generally an upper-layer instance passed when this callback is set. |
| pBuffer | Indicates the pointer to the input data that has been used. |
Returns:
Returns 0 if the operation is successful; returns a non-zero value otherwise.
int(* CodecCallback::OnEvent) ([UINTPTR](Codec.md#ga58d2f4a8d12daa1dcf4eb297f3ebaabc) comp, [UINTPTR](Codec.md#ga58d2f4a8d12daa1dcf4eb297f3ebaabc) appData, [EventType](Codec.md#ga2628ea8d12e8b2563c32f05dc7fff6fa) event, uint32_t data1, uint32_t data2, [UINTPTR](Codec.md#ga58d2f4a8d12daa1dcf4eb297f3ebaabc) eventData)
Description:
Reports an event.
Reports event errors and output format changes.
Parameters:
| hComponent | Indicates the handle of the codec component. |
| pAppData | Indicates upper-layer data, which is generally an upper-layer instance passed when this callback is set. |
| EVENTTYPE | Indicates the event type. |
| nData1 | Indicates the first value contained in the reported event. This parameter is optional. |
| nData2 | Indicates the second value contained in the reported event. This parameter is optional. |
| pEventData | Indicates the pointer to data contained in the reported event. This parameter is optional. |
Returns:
Returns 0 if the operation is successful; returns a non-zero value otherwise.
int(* CodecCallback::OutputBufferAvailable) ([UINTPTR](Codec.md#ga58d2f4a8d12daa1dcf4eb297f3ebaabc) comp, [UINTPTR](Codec.md#ga58d2f4a8d12daa1dcf4eb297f3ebaabc) appData, [OutputInfo](OutputInfo.md) *outBuf)
Description:
Reports that the output is complete.
This callback is invoked in asynchronous mode.
Parameters:
| hComponent | Indicates the handle of the codec component. |
| pAppData | Indicates upper-layer data, which is generally an upper-layer instance passed when this callback is registered. |
| pBuffer | Indicates the pointer to the output data that has been generated. |
Returns:
Returns 0 if the operation is successful; returns a non-zero value otherwise.
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