Multimedia Subsystem Changelog
cl.multimedia.1 Core Module APIs Changed
Access Level
Public API
Reason for Change
The AVMemory struct is deprecated and replaced by AVBuffer.
Change Impact
The change is compatible with earlier versions. Use the new APIs in your code.
API Level
| Deprecated API | API Level |
|---|---|
| OH_AVMemory_Create | 10 |
| OH_AVMemory_GetAddr | 9 |
| OH_AVMemory_GetSize | 9 |
| OH_AVMemory_Destroy | 10 |
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes
| Deprecated API | Deprecated Description | Substitute API |
|---|---|---|
| OH_AVMemory_Create | The API for creating an AVMemory instance is deprecated, and the API for creating an AVBuffer instance is supported. | OH_AVBuffer_Create |
| OH_AVMemory_GetAddr | The API for obtaining the virtual address of the memory is deprecated, and the API for obtaining the buffer address is supported. | OH_AVBuffer_GetAddr |
| OH_AVMemory_GetSize | The API for obtaining the memory length is deprecated, and the API for obtaining the buffer length is supported. | OH_AVBuffer_GetCapacity |
| OH_AVMemory_Destroy | The API for destroying an AVMemory instance is deprecated, and the API for destroying an AVBuffer instance is supported. | OH_AVBuffer_Destroy |
Adaptation Guide
Before change:
In the code for implementing media encoding/decoding and muxing/demuxing, use the AVMemory APIs to operate the data memory.
After change:
In the code for implementing media encoding/decoding and muxing/demuxing, use the AVBuffer APIs to operate the data memory.
cl.multimedia.2 CodecBase Module APIs Changed
Access Level
Public API
Reason for Change
The AVMemory struct is deprecated and replaced by AVBuffer. Unsupported specifications are removed.
Change Impact
The change is compatible with earlier versions. Use the new APIs in your code.
API Level
| API | API Level |
|---|---|
| OH_AVCodecOnNeedInputData | 9 |
| OH_AVCodecOnNewOutputData | 9 |
| OH_AVCodecAsyncCallback | 9 |
| const char *OH_AVCODEC_MIMETYPE_VIDEO_MPEG4 | 10 |
| AudioChannelSet | 10 |
| AudioChanelLayout | 10 |
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes
| Deprecated API | Deprecated Description | Substitute API |
|---|---|---|
| OH_AVCodecOnNeedInputData | The callback function for codec input data is changed from AVMemory to AVBuffer. | OH_AVCodecOnNeedInputBuffer |
| OH_AVCodecOnNewOutputData | The callback function for codec output data is changed from AVMemory to AVBuffer. | OH_AVCodecOnNewOutputBuffer |
| OH_AVCodecAsyncCallback | The pointer to the registered callback functions is changed from AVMemory to AVBuffer. | OH_AVCodecCallback |
| const char *OH_AVCODEC_MIMETYPE_VIDEO_MPEG4 | This specification is no longer supported. | None |
| AudioChannelSet | The API name is changed. | OH_AudioChannelSet |
| AudioChanelLayout | The API name is changed. | OH_AudioChannelLayout |
Adaptation Guide
Before change:
Pointer to the registered callback functions OH_AVCodecAsyncCallback for the audio and video codec:
Implementation of the codec input callback: OH_AVCodecOnNeedInputData
Implementation of the codec output callback: OH_AVCodecOnNewOutputData
Container format: OH_AVCODEC_MIMETYPE_VIDEO_MPEG4
Audio channel settings: AudioChannelSet
Audio channel layouts: AudioChanelLayout
After change:
Pointer to the registered callback functions OH_AVCodecCallback for the audio and video codec:
Implementation of the codec input callback: OH_AVCodecOnNeedInputBuffer
Implementation of the codec output callback: OH_AVCodecOnNewOutputBuffer
Container format OH_AVCODEC_MIMETYPE_VIDEO_MPEG4: no longer supported
Audio channel settings: OH_AudioChannelSet
Audio channel layouts: OH_AudioChannelLayout
cl.multimedia.3 VideoDecoder Module APIs Changed
Access Level
Public API
Reason for Change
The AVMemory struct is deprecated and replaced by AVBuffer.
Change Impact
The change is compatible with earlier versions. Use the new APIs in your code.
API Level
| API | API Level |
|---|---|
| OH_VideoDecoder_SetCallback | 9 |
| OH_VideoDecoder_PushInputData | 9 |
| OH_VideoDecoder_RenderOutputData | 9 |
| OH_VideoDecoder_FreeOutputData | 9 |
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes
| Deprecated API | Deprecated Description | Substitute API |
|---|---|---|
| OH_VideoDecoder_SetCallback | The AVBuffer struct is used in the callback function registration. | OH_VideoDecoder_RegisterCallback |
| OH_VideoDecoder_PushInputData | The AVBuffer struct is used in the decoder's input stream data. | OH_VideoDecoder_PushInputBuffer |
| OH_VideoDecoder_RenderOutputData | The AVBuffer struct is used in the decoder's output rendering control. | OH_VideoDecoder_RenderOutputBuffer |
| OH_VideoDecoder_FreeOutputData | The AVBuffer struct is used in the decoder's output rendering release. | OH_VideoDecoder_FreeOutputBuffer |
Adaptation Guide
Before change:
Call OH_VideoDecoder_SetCallback() to set callback functions.
Call OH_VideoDecoder_PushInputData to fill in stream data when an input callback is received.
Call OH_VideoDecoder_FreeOutputData to release the output image or OH_VideoDecoder_RenderOutputData to render the image when an output callback is received.
After change:
Call OH_VideoDecoder_RegisterCallback() to set callback functions.
Call OH_VideoDecoder_PushInputBuffer to fill in stream data when an input callback is received.
Call OH_VideoDecoder_FreeOutputBuffer to release the output image or OH_VideoDecoder_RenderOutputBuffer to render the image when an output callback is received.
cl.multimedia.4 VideoEncoder Module APIs Changed
Access Level
Public API
Reason for Change
The AVMemory struct is deprecated and replaced by AVBuffer.
Change Impact
The change is compatible with earlier versions. Use the new APIs in your code.
API Level
| API | API Level |
|---|---|
| OH_VideoEncoder_SetCallback | 9 |
| OH_VideoEncoder_PushInputData | 9 |
| OH_VideoEncoder_FreeOutputData | 9 |
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes
| Deprecated API | Deprecated Description | Substitute API |
|---|---|---|
| OH_VideoEncoder_SetCallback | The AVBuffer struct is used in the callback function registration. | OH_VideoEncoder_RegisterCallback |
| OH_VideoEncoder_PushInputData | The AVBuffer struct is used in the encoder's input stream data. | OH_VideoEncoder_PushInputBuffer |
| OH_VideoEncoder_FreeOutputData | The AVBuffer struct is used in the encoder's output rendering release. | OH_VideoEncoder_FreeOutputBuffer |
Adaptation Guide
Before change:
Call OH_VideoEncoder_SetCallback() to set callback functions.
Call OH_VideoEncoder_PushInputData to fill in data to encode when an input callback is received.
Call OH_VideoEncoder_FreeOutputData to release output data when an output callback is received.
After change:
Call OH_VideoEncoder_RegisterCallback() to set callback functions.
Call OH_VideoEncoder_PushInputBuffer to fill in data to encode when an input callback is received.
Call OH_VideoEncoder_FreeOutputBuffer to release output data when an output callback is received.
cl.multimedia.5 AVDemuxer Module APIs Changed
Access Level
Public API
Reason for Change
The AVMemory struct is deprecated and replaced by AVBuffer.
Change Impact
The change is compatible with earlier versions. Use the new API in your code.
API Level
| API | API Level |
|---|---|
| OH_AVDemuxer_ReadSample | 10 |
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes
| Deprecated API | Deprecated Description | Substitute API |
|---|---|---|
| OH_AVDemuxer_ReadSample | The AVBuffer struct is used when the demuxer reads frames. | OH_AVDemuxer_ReadSampleBuffer |
Adaptation Guide
Before change:
OH_AVDemuxer_ReadSample() is used to read compressed frames and related information.
After change:
Call OH_AVDemuxer_ReadSampleBuffer() to read compressed frames and related information.
cl.multimedia.6 AVMuxer Module APIs Changed
Access Level
Public API
Reason for Change
The AVMemory struct is deprecated and replaced by AVBuffer.
Change Impact
The change is compatible with earlier versions. Use the new API in your code.
API Level
| API | API Level |
|---|---|
| OH_AVMuxer_WriteSample | 10 |
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes
| Deprecated API | Deprecated Description | Substitute API |
|---|---|---|
| OH_AVMuxer_WriteSample | The AVBuffer struct is used when the muxer writes frames. | OH_AVMuxer_WriteSampleBuffer |
Adaptation Guide
Before change:
Call OH_AVMuxer_WriteSample() to write compressed frames and related information.
After change:
Call OH_AVMuxer_WriteSampleBuffer() to write compressed frames and related information.
cl.multimedia.7 AudioDecoder Module APIs Changed
Access Level
Public API
Reason for Change
The AVMemory struct is deprecated and replaced by AVBuffer. The AudioDecoder module is changed to the AudioCodec module.
Change Impact
The change is compatible with earlier versions. Use the new APIs in your code.
API Level
| API | API Level |
|---|---|
| OH_AudioDecoder_CreateByName | 9 |
| OH_AudioDecoder_CreateByMime | 9 |
| OH_AudioDecoder_SetCallback | 9 |
| OH_AudioDecoder_Configure | 9 |
| OH_AudioDecoder_Prepare | 9 |
| OH_AudioDecoder_Start | 9 |
| OH_AudioDecoder_PushInputData | 9 |
| OH_AudioDecoder_FreeOutputData | 9 |
| OH_AudioDecoder_Flush | 9 |
| OH_AudioDecoder_IsValid | 10 |
| OH_AudioDecoder_Reset | 9 |
| OH_AudioDecoder_Stop | 9 |
| OH_AudioDecoder_Destroy | 9 |
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes
| Deprecated API | Deprecated Description | Substitute API |
|---|---|---|
| OH_AudioDecoder_CreateByName | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_CreateByName |
| OH_AudioDecoder_CreateByMime | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_CreateByMime |
| OH_AudioDecoder_SetCallback | The AudioDecoder module is changed to the AudioCodec module. The AVBuffer struct is used in the callback function registration. | OH_AudioCodec_RegisterCallback |
| OH_AudioDecoder_Configure | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_Configure |
| OH_AudioDecoder_Prepare | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_Prepare |
| OH_AudioDecoder_Start | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_Start |
| OH_AudioDecoder_PushInputData | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_PushInputBuffer |
| OH_AudioDecoder_FreeOutputData | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_FreeOutputBuffer |
| OH_AudioDecoder_Flush | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_Flush |
| OH_AudioDecoder_IsValid | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_IsValid |
| OH_AudioDecoder_Reset | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_Reset |
| OH_AudioDecoder_Stop | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_Stop |
| OH_AudioDecoder_Destroy | The AudioDecoder module is changed to the AudioCodec module. | OH_AudioCodec_Destroy |
Adaptation Guide
Before change:
Call OH_AudioDecoder_CreateByName() or OH_AudioDecoder_CreateByMime() to create a decoder.
Call OH_AudioDecoder_SetCallback() to set callback functions.
Call OH_AudioDecoder_Configure() to configure the decoder.
Call OH_AudioDecoder_Prepare() to prepare internal resources for the decoder.
Call OH_AudioDecoder_Start() to start the decoder.
Call OH_AudioDecoder_PushInputData() to write the data to decode.
Call OH_AudioDecoder_FreeOutputData() to output decoded PCM streams.
(Optional) Call OH_AudioDecoder_Flush() to refresh the decoder.
(Optional) Call OH_AudioDecoder_IsValid() to determine whether the execution can be continued.
(Optional) Call OH_AudioDecoder_Reset() to reset the decoder.
Call OH_AudioDecoder_Stop() to stop the decoder.
Call OH_AudioDecoder_Destroy() to destroy the decoder instance and release resources.
After change:
Call OH_AudioCodec_CreateByName() or OH_AudioCodec_CreateByMime to create a codec.
Call OH_AudioCodec_SetCallback() to set callback functions.
Call OH_AudioCodec_Configure() to configure the codec.
Call OH_AudioCodec_Prepare() to prepare internal resources for the codec.
Call OH_AudioCodec_Start() to start the codec.
Call OH_AudioCodec_PushInputData() to write the data to decode.
Call OH_AudioCodec_FreeOutputData() to output the codec stream.
(Optional) Call OH_AudioCodec_Flush() to refresh the codec.
(Optional) Call OH_AudioCodec_IsValid() to determine whether the execution can be continued.
(Optional) Call OH_AudioCodec_Reset() to reset the codec.
Call OH_AudioCodec_Stop() to stop the codec.
Call OH_AudioCodec_Destroy() to destroy the codec instance and release resources.
cl.multimedia.8 AudioEncoder Module APIs Changed
Access Level
Public API
Reason for Change
The AVMemory struct is deprecated and replaced by AVBuffer. The AudioEncoder module is changed to the AudioCodec module.
Change Impact
The change is compatible with earlier versions. Use the new APIs in your code.
API Level
| API | API Level |
|---|---|
| OH_AudioEncoder_CreateByName | 9 |
| OH_AudioEncoder_CreateByMime | 9 |
| OH_AudioEncoder_SetCallback | 9 |
| OH_AudioEncoder_Configure | 9 |
| OH_AudioEncoder_Prepare | 9 |
| OH_AudioEncoder_Start | 9 |
| OH_AudioEncoder_PushInputData | 9 |
| OH_AudioEncoder_FreeOutputData | 9 |
| OH_AudioEncoder_Flush | 9 |
| OH_AudioEncoder_IsValid | 10 |
| OH_AudioEncoder_Reset | 9 |
| OH_AudioEncoder_Stop | 9 |
| OH_AudioEncoder_Destroy | 9 |
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes
| Deprecated API | Deprecated Description | Substitute API |
|---|---|---|
| OH_AudioEncoder_CreateByName | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_CreateByName |
| OH_AudioEncoder_CreateByMime | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_CreateByMime |
| OH_AudioEncoder_SetCallback | The AudioEncoder module is changed to the AudioCodec module. The AVBuffer struct is used in the callback function registration. | OH_AudioCodec_RegisterCallback |
| OH_AudioEncoder_Configure | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_Configure |
| OH_AudioEncoder_Prepare | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_Prepare |
| OH_AudioEncoder_Start | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_Start |
| OH_AudioEncoder_PushInputData | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_PushInputBuffer |
| OH_AudioEncoder_FreeOutputData | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_FreeOutputBuffer |
| OH_AudioEncoder_Flush | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_Flush |
| OH_AudioEncoder_IsValid | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_IsValid |
| OH_AudioEncoder_Reset | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_Reset |
| OH_AudioEncoder_Stop | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_Stop |
| OH_AudioEncoder_Destroy | The AudioEncoder module is changed to the AudioCodec module. | OH_AudioCodec_Destroy |
Adaptation Guide
Before change:
Call OH_AudioEncoder_CreateByName() or OH_AudioEncoder_CreateByMime to create an encoder.
Call OH_AudioEncoder_SetCallback() to set callback functions.
Call OH_AudioEncoder_Configure() to configure the encoder.
Call OH_AudioEncoder_Prepare() to prepare internal resources for the encoder.
Call OH_AudioEncoder_Start() to start the encoder.
Call OH_AudioEncoder_PushInputData() to write the data to encode.
Call OH_AudioEncoder_FreeOutputData() to output the encoded stream.
(Optional) Call OH_AudioEncoder_Flush() to refresh the encoder.
(Optional) Call OH_AudioEncoder_IsValid() to determine whether the execution can be continued.
(Optional) Call OH_AudioEncoder_Reset() to reset the encoder.
Call OH_AudioEncoder_Stop() to stop the encoder.
Call OH_AudioEncoder_Destroy() to destroy the encoder instance and release resources.
After change:
Call OH_AudioCodec_CreateByName() or OH_AudioCodec_CreateByMime to create a codec.
Call OH_AudioCodec_SetCallback() to set callback functions.
Call OH_AudioCodec_Configure() to configure the codec.
Call OH_AudioCodec_Prepare() to prepare internal resources for the codec.
Call OH_AudioCodec_Start() to start the codec.
Call OH_AudioCodec_PushInputData() to write the data to decode.
Call OH_AudioCodec_FreeOutputData() to output the codec stream.
(Optional) Call OH_AudioCodec_Flush() to refresh the codec.
(Optional) Call OH_AudioCodec_IsValid() to determine whether the execution can be continued.
(Optional) Call OH_AudioCodec_Reset() to reset the codec.
Call OH_AudioCodec_Stop() to stop the codec.
Call OH_AudioCodec_Destroy() to destroy the codec instance and release resources.
cl.multimedia.9 Format Specifications Supported by AVPlayer and AVRecorder Changed
Access Level
Public API
Reason for Change
The AVCodec struct is used for muxing/demuxing and encoding/decoding.
Change Impact
The following formats are not supported: Container format: WebM Video decoding formats: H.263, MPEG2, MPEG4, and VP8 Video encoding format: MPEG4
API Level
11
Change Since
OpenHarmony SDK 4.1.6.3
Key API/Component Changes AVPlayer and AVRecorder
Adaptation Guide
- Use MPEG4 rather than AVC for video encoding.
- If the container format WebM or video decoding format H.263/MPEG2/MPEG4/VP8 is used, the playback fails. In this case, you are advised to use the resources in the container format MP4 and video decoding format AVC.
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