native_avcapability.h
Overview
The file declares the native APIs used to query the codec capability.
File to include: <multimedia/player_framework/native_avcapability.h>
Library: libnative_media_codecbase.so
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Related module: AVCapability
Summary
Structs
| Name | typedef Keyword | Description |
|---|---|---|
| OH_AVRange | OH_AVRange | Describes the value range, which contains the minimum value and maximum value. |
| OH_AVCapability | OH_AVCapability | Describes a native object for the OH_AVCapability interface. |
Enums
| Name | typedef Keyword | Description |
|---|---|---|
| OH_AVCodecCategory | OH_AVCodecCategory | Enumerates the codec categories. |
| OH_AVCapabilityFeature | OH_AVCapabilityFeature | Enumerates the optional features that can be used in specific codec scenarios. |
Functions
Enum Description
OH_AVCodecCategory
enum OH_AVCodecCategory
Description
Enumerates the codec categories.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
| Value | Description |
|---|---|
| HARDWARE = 0 | Hardware codec. |
| SOFTWARE | Software codec. |
OH_AVCapabilityFeature
enum OH_AVCapabilityFeature
Description
Enumerates the optional features that can be used in specific codec scenarios.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 12
| Value | Description |
|---|---|
| VIDEO_ENCODER_TEMPORAL_SCALABILITY = 0 | Temporal scalability feature, which is available only in video encoding scenarios. |
| VIDEO_ENCODER_LONG_TERM_REFERENCE = 1 | Long-term reference frame feature, which is available only in video encoding scenarios. |
| VIDEO_LOW_LATENCY = 2 | Low latency feature, which is available only in video decoding scenarios. |
| VIDEO_ENCODER_B_FRAME = 7 | B-frame encoding feature, which is available only in video encoding scenarios. Since: 20 |
Function Description
OH_AVCodec_GetCapability()
OH_AVCapability *OH_AVCodec_GetCapability(const char *mime, bool isEncoder)
Description
Obtains the codec capability recommended by the system.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| const char *mime | Pointer to a string that describes the MIME type. For details, see AVCODEC_MIME_TYPE. |
| bool isEncoder | Whether the instance is an encoder. The value true means an encoder and false means a decoder. |
Returns
| Type | Description |
|---|---|
| OH_AVCapability * | Pointer to the codec capability instance. If no existing codec matches, NULL is returned. |
OH_AVCodec_GetCapabilityByCategory()
OH_AVCapability *OH_AVCodec_GetCapabilityByCategory(const char *mime, bool isEncoder, OH_AVCodecCategory category)
Description
Obtains the codec capability by category, which can be a hardware codec or software codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| const char *mime | Pointer to a string that describes the MIME type. For details, see AVCODEC_MIME_TYPE. |
| bool isEncoder | Whether the instance is an encoder. The value true means an encoder and false means a decoder. |
| OH_AVCodecCategory category | Codec category. |
Returns
| Type | Description |
|---|---|
| OH_AVCapability * | Pointer to the codec capability instance. If no existing codec matches, NULL is returned. |
OH_AVCapability_IsHardware()
bool OH_AVCapability_IsHardware(OH_AVCapability *capability)
Description
Checks whether a codec capability instance describes a hardware codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the codec capability. |
Returns
| Type | Description |
|---|---|
| bool | Check result for whether the codec capability instance describes a hardware codec. true if it describes a hardware codec, false otherwise. |
OH_AVCapability_GetName()
const char *OH_AVCapability_GetName(OH_AVCapability *capability)
Description
Obtains the codec name.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the codec capability. |
Returns
| Type | Description |
|---|---|
| const char * | Codec name string. |
OH_AVCapability_GetMaxSupportedInstances()
int32_t OH_AVCapability_GetMaxSupportedInstances(OH_AVCapability *capability)
Description
Obtains the maximum number of codec instances supported by a codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the codec capability. |
Returns
| Type | Description |
|---|---|
| int32_t | Maximum number of codec instances supported. |
OH_AVCapability_GetEncoderBitrateRange()
OH_AVErrCode OH_AVCapability_GetEncoderBitrateRange(OH_AVCapability *capability, OH_AVRange *bitrateRange)
Description
Obtains the bit rate range supported by an encoder.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the encoder capability. If a pointer to the decoder capability is provided, undefined behavior occurs. |
| OH_AVRange *bitrateRange | Pointer to the bit rate range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the bit rate range is null. |
OH_AVCapability_IsEncoderBitrateModeSupported()
bool OH_AVCapability_IsEncoderBitrateModeSupported(OH_AVCapability *capability, OH_BitrateMode bitrateMode)
Description
Checks whether an encoder supports a specific bit rate mode.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the encoder capability. If a pointer to the decoder capability is provided, undefined behavior occurs. |
| OH_BitrateMode bitrateMode | Bit rate mode. |
Returns
| Type | Description |
|---|---|
| bool | Check result for the support of the bit rate mode. true if supported, false otherwise. |
OH_AVCapability_GetEncoderQualityRange()
OH_AVErrCode OH_AVCapability_GetEncoderQualityRange(OH_AVCapability *capability, OH_AVRange *qualityRange)
Description
Obtains the quality range supported by an encoder.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the encoder capability. If a pointer to the decoder capability is provided, undefined behavior occurs. |
| OH_AVRange *qualityRange | Pointer to the quality range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the quality range is null. |
OH_AVCapability_GetEncoderComplexityRange()
OH_AVErrCode OH_AVCapability_GetEncoderComplexityRange(OH_AVCapability *capability, OH_AVRange *complexityRange)
Description
Obtains the complexity range supported by an encoder.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the encoder capability. If a pointer to the decoder capability is provided, undefined behavior occurs. |
| OH_AVRange *complexityRange | Pointer to the complexity range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the complexity range is null. |
OH_AVCapability_GetAudioSupportedSampleRates()
OH_AVErrCode OH_AVCapability_GetAudioSupportedSampleRates(OH_AVCapability *capability, const int32_t **sampleRates, uint32_t *sampleRateNum)
Description
Obtains the sample rates supported by an audio codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the audio codec capability. If a pointer to the video codec capability is provided, undefined behavior occurs. |
| const int32_t **sampleRates | Double pointer to the sample rate array. |
| uint32_t *sampleRateNum | Pointer to the number of elements in the array. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the pointer to the sample rate array is null, or the pointer to the number of elements in the array is null. AV_ERR_UNKNOWN: An unknown error occurs. AV_ERR_NO_MEMORY: Internal memory allocation failed. |
OH_AVCapability_GetAudioSupportedSampleRateRanges()
OH_AVErrCode OH_AVCapability_GetAudioSupportedSampleRateRanges(OH_AVCapability *capability, OH_AVRange **sampleRateRanges, uint32_t *rangesNum)
Description
Obtains the sample rate ranges supported by an audio codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 20
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the audio codec capability. If a pointer to the video codec capability is provided, undefined behavior occurs. |
| OH_AVRange **sampleRateRanges | Double pointer to the sample rate range array. |
| uint32_t *rangesNum | Pointer to the number of elements in the array. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the pointer to the sample rate range array is null, or the pointer to the number of elements in the array is null. AV_ERR_UNKNOWN: An unknown error occurs. AV_ERR_NO_MEMORY: Internal memory allocation failed. |
OH_AVCapability_GetAudioChannelCountRange()
OH_AVErrCode OH_AVCapability_GetAudioChannelCountRange(OH_AVCapability *capability, OH_AVRange *channelCountRange)
Description
Obtains the count range of audio channels supported by an audio codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the audio codec capability. If a pointer to the video codec capability is provided, undefined behavior occurs. |
| OH_AVRange *channelCountRange | Pointer to the count range of audio channels supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the count range of audio channels is null. |
OH_AVCapability_GetVideoWidthAlignment()
OH_AVErrCode OH_AVCapability_GetVideoWidthAlignment(OH_AVCapability *capability, int32_t *widthAlignment)
Description
Obtains the video width alignment supported by a video codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| int32_t *widthAlignment | Pointer to the video width alignment supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the video width alignment is null. |
OH_AVCapability_GetVideoHeightAlignment()
OH_AVErrCode OH_AVCapability_GetVideoHeightAlignment(OH_AVCapability *capability, int32_t *heightAlignment)
Description
Obtains the video height alignment supported by a video codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| int32_t *heightAlignment | Pointer to the video height alignment supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the video height alignment is null. |
OH_AVCapability_GetVideoWidthRangeForHeight()
OH_AVErrCode OH_AVCapability_GetVideoWidthRangeForHeight(OH_AVCapability *capability, int32_t height, OH_AVRange *widthRange)
Description
Obtains the video width range supported by a video codec based on a given height.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| int32_t height | Number of vertical video pixels. |
| OH_AVRange *widthRange | Pointer to the video width range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the height is not within the supported height range obtained through OH_AVCapability_GetVideoHeightRange, or the pointer to the width range is null. |
OH_AVCapability_GetVideoHeightRangeForWidth()
OH_AVErrCode OH_AVCapability_GetVideoHeightRangeForWidth(OH_AVCapability *capability, int32_t width, OH_AVRange *heightRange)
Description
Obtains the video height range supported by a video codec based on a given width.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| int32_t width | Number of horizontal video pixels. |
| OH_AVRange *heightRange | Pointer to the video height range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the width is not within the supported width range obtained through OH_AVCapability_GetVideoWidthRange, or the pointer to the height range is null. |
OH_AVCapability_GetVideoWidthRange()
OH_AVErrCode OH_AVCapability_GetVideoWidthRange(OH_AVCapability *capability, OH_AVRange *widthRange)
Description
Obtains the video width range supported by a video codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| OH_AVRange *widthRange | Pointer to the video width range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the video width range is null. |
OH_AVCapability_GetVideoHeightRange()
OH_AVErrCode OH_AVCapability_GetVideoHeightRange(OH_AVCapability *capability, OH_AVRange *heightRange)
Description
Obtains the video height range supported by a video codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| OH_AVRange *heightRange | Pointer to the video height range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the video height range is null. |
OH_AVCapability_IsVideoSizeSupported()
bool OH_AVCapability_IsVideoSizeSupported(OH_AVCapability *capability, int32_t width, int32_t height)
Description
Checks whether a video codec supports a specific video size.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| int32_t width | Number of horizontal video pixels. |
| int32_t height | Number of vertical video pixels. |
Returns
| Type | Description |
|---|---|
| bool | Check result for the support of the video size. true if supported, false otherwise. |
OH_AVCapability_GetVideoFrameRateRange()
OH_AVErrCode OH_AVCapability_GetVideoFrameRateRange(OH_AVCapability *capability, OH_AVRange *frameRateRange)
Description
Obtains the video frame rate range supported by a video codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| OH_AVRange *frameRateRange | Pointer to the video frame rate range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid or the pointer to the video frame rate range is null. |
OH_AVCapability_GetVideoFrameRateRangeForSize()
OH_AVErrCode OH_AVCapability_GetVideoFrameRateRangeForSize(OH_AVCapability *capability, int32_t width, int32_t height, OH_AVRange *frameRateRange)
Description
Obtains the video frame rate range supported by a video codec based on a given video size.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| int32_t width | Number of horizontal video pixels. |
| int32_t height | Number of vertical video pixels. |
| OH_AVRange *frameRateRange | Pointer to the video frame rate range supported. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the combination of the width and height is not supported, or the pointer to the frame rate range is null. |
OH_AVCapability_AreVideoSizeAndFrameRateSupported()
bool OH_AVCapability_AreVideoSizeAndFrameRateSupported(OH_AVCapability *capability, int32_t width, int32_t height, int32_t frameRate)
Description
Checks whether a video codec supports the combination of a video size and frame rate.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| int32_t width | Number of horizontal video pixels. |
| int32_t height | Number of vertical video pixels. |
| int32_t frameRate | Number of frames per second. |
Returns
| Type | Description |
|---|---|
| bool | Check result for the support of the combination of the video size and frame rate. true if supported, false otherwise. |
OH_AVCapability_GetVideoSupportedPixelFormats()
OH_AVErrCode OH_AVCapability_GetVideoSupportedPixelFormats(OH_AVCapability *capability, const int32_t **pixelFormats, uint32_t *pixelFormatNum)
Description
Obtains the video pixel formats supported by a video codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. If a pointer to the audio codec capability is provided, undefined behavior occurs. |
| const int32_t **pixelFormats | Double pointer to the video pixel format array. |
| uint32_t *pixelFormatNum | Pointer to the number of elements in the array. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the pointer to the video pixel format array is null, or the pointer to the number of elements in the array is null. AV_ERR_UNKNOWN: An unknown error occurs. AV_ERR_NO_MEMORY: Internal memory allocation failed. |
OH_AVCapability_GetVideoSupportedNativeBufferFormats()
OH_AVErrCode OH_AVCapability_GetVideoSupportedNativeBufferFormats(OH_AVCapability *capability, const OH_NativeBuffer_Format **nativeBufferFormats, uint32_t *nativeBufferFormatNum)
Description
Obtains the OH_NativeBuffer formats supported by a video codec. This function provides the OH_NativeBuffer formats that can be processed by a video codec. For details, see OH_NativeBuffer_Format.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 22
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the video codec capability. |
| const OH_NativeBuffer_Format **nativeBufferFormats | Double pointer to the OH_NativeBuffer_Format array. |
| uint32_t *nativeBufferFormatNum | Pointer to the number of elements in the array. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the capability instance is an audio codec capability, the pointer to the OH_NativeBuffer_Format array is nullptr, or the pointer to the number of elements in the array is nullptr. AV_ERR_UNKNOWN: An unknown error occurs. AV_ERR_NO_MEMORY: Internal memory allocation failed. |
OH_AVCapability_GetSupportedProfiles()
OH_AVErrCode OH_AVCapability_GetSupportedProfiles(OH_AVCapability *capability, const int32_t **profiles, uint32_t *profileNum)
Description
Obtains the profiles supported by a codec.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the codec capability. |
| const int32_t **profiles | Double pointer to the profile array. |
| uint32_t *profileNum | Pointer to the number of profiles in the array. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the pointer to the profile array is null, or the pointer to the number of elements in the array is null. AV_ERR_UNKNOWN: An unknown error occurs. AV_ERR_NO_MEMORY: Internal memory allocation failed. |
OH_AVCapability_GetSupportedLevelsForProfile()
OH_AVErrCode OH_AVCapability_GetSupportedLevelsForProfile(OH_AVCapability *capability, int32_t profile, const int32_t **levels, uint32_t *levelNum)
Description
Obtains the codec levels supported by a profile.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the codec capability. |
| int32_t profile | Codec profile. |
| const int32_t **levels | Double pointer to the codec level array. |
| uint32_t *levelNum | Pointer to the number of elements in the array. |
Returns
| Type | Description |
|---|---|
| OH_AVErrCode | AV_ERR_OK: The operation is successful. AV_ERR_INVALID_VAL: The capability instance is invalid, the level is not in the supported level array obtained through OH_AVCapability_GetSupportedProfiles, the pointer to the level array is null, or the pointer to the number of elements in the array is null. AV_ERR_UNKNOWN: An unknown error occurs. AV_ERR_NO_MEMORY: Internal memory allocation failed. |
OH_AVCapability_AreProfileAndLevelSupported()
bool OH_AVCapability_AreProfileAndLevelSupported(OH_AVCapability *capability, int32_t profile, int32_t level)
Description
Checks whether a codec supports the combination of a profile and level.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 10
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the codec capability. |
| int32_t profile | Codec profile. |
| int32_t level | Level of the codec. |
Returns
| Type | Description |
|---|---|
| bool | Check result for the support of the combination of the profile and level. true if supported, false otherwise. |
OH_AVCapability_IsFeatureSupported()
bool OH_AVCapability_IsFeatureSupported(OH_AVCapability *capability, OH_AVCapabilityFeature feature)
Description
Checks whether a codec supports a feature.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 12
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the codec capability. |
| OH_AVCapabilityFeature feature | Codec feature. |
Returns
| Type | Description |
|---|---|
| bool | Check result for the feature. true if supported, false otherwise. |
OH_AVCapability_GetFeatureProperties()
OH_AVFormat *OH_AVCapability_GetFeatureProperties(OH_AVCapability *capability, OH_AVCapabilityFeature feature)
Description
Obtains the properties of a feature. You must manually release the OH_AVFormat instance in the return value.
System capability: SystemCapability.Multimedia.Media.CodecBase
Since: 12
Parameters
| Name | Description |
|---|---|
| OH_AVCapability *capability | Pointer to the codec capability. |
| OH_AVCapabilityFeature feature | Codec feature. |
Returns
| Type | Description |
|---|---|
| OH_AVFormat * | Pointer to an OH_AVFormat instance. |