harmony 鸿蒙CodecBase
CodecBase
Overview
The CodecBase module provides the common structs, character constants, and enums for running OH_AVCodec instances. This module may not be supported on some devices. You can call CanIUse to check whether your device supports this module.
\@syscap SystemCapability.Multimedia.Media.CodecBase
Since
9
Summary
Files
Name | Description |
---|---|
native_avcodec_base.h | Declares the common structs, character constants, and enums for running OH_AVCodec instances. File to include: Library: libnative_media_codecbase.so |
Structs
Name | Description |
---|---|
OH_AVCodecBufferAttr | Defines the description information about the buffer of an OH_AVCodec instance. |
OH_AVCodecAsyncCallback | Defines all the asynchronous callback function pointers of an OH_AVCodec instance. |
Types
Name | Description |
---|---|
OH_AVCodecBufferFlags | Defines an enum that enumerates the flags for the buffer of an OH_AVCodec instance. |
OH_AVOutputFormat | Defines an enum that enumerates the output file formats of a muxer. |
OH_AVCodecBufferAttr | Defines a struct for the description information about the buffer of an OH_AVCodec instance. |
(*OH_AVCodecOnError) (OH_AVCodec *codec, int32_t errorCode, void *userData) | Defines the pointer to the function that is called to report error information when an error occurs during the running of an OH_AVCodec instance. |
(*OH_AVCodecOnStreamChanged) (OH_AVCodec *codec, OH_AVFormat *format, void *userData) | Defines the pointer to the function that is called to report the new stream description when the output stream changes. |
(*OH_AVCodecOnNeedInputData) (OH_AVCodec *codec, uint32_t index, OH_AVMemory *data, void *userData) | Defines the pointer to the function that is called when new input data is required during the running of an OH_AVCodec instance. The function carries a buffer to fill in new input data. |
(*OH_AVCodecOnNewOutputData) (OH_AVCodec *codec, uint32_t index, OH_AVMemory *data, OH_AVCodecBufferAttr *attr, void *userData) | Defines the pointer to the function that is called when new output data is generated during the running of an OH_AVCodec instance. The function carries a buffer filled with new output data. |
OH_AVCodecAsyncCallback | Defines a struct for all the asynchronous callback function pointers of an OH_AVCodec instance. |
OH_MediaType | Defines an enum that enumerates the media types. |
OH_AVCProfile | Defines an enum that enumerates the Advanced Video Coding (AVC) profiles. |
OH_HEVCProfile | Defines an enum that enumerates the High Efficiency Video Coding (HEVC) profiles. |
OH_AACProfile | Defines an enum that enumerates the Advanced Audio Coding (AAC) profiles. |
OH_AVSeekMode | Defines an enum that enumerates the seek modes. |
OH_ColorPrimary | Defines an enum that enumerates the primary colors. |
OH_TransferCharacteristic | Defines an enum that enumerates the transfer characteristics. |
OH_MatrixCoefficient | Defines an enum that enumerates the matrix coefficients. |
OH_BitsPerSample | Defines an enum that enumerates the number of audio bits for each coded sample. |
Enums
Name | Description |
---|---|
OH_AVCodecBufferFlags { AVCODEC_BUFFER_FLAGS_NONE = 0, AVCODEC_BUFFER_FLAGS_EOS = 1 << 0, AVCODEC_BUFFER_FLAGS_SYNC_FRAME = 1 << 1, AVCODEC_BUFFER_FLAGS_INCOMPLETE_FRAME = 1 << 2, AVCODEC_BUFFER_FLAGS_CODEC_DATA = 1 << 3 } |
Enumerates the flags for the buffer of an OH_AVCodec instance. |
OH_AVOutputFormat { AV_OUTPUT_FORMAT_DEFAULT = 0, AV_OUTPUT_FORMAT_MPEG_4 = 2, AV_OUTPUT_FORMAT_M4A = 6 } |
Enumerates the output file formats of a muxer. |
OH_MediaType { MEDIA_TYPE_AUD = 0, MEDIA_TYPE_VID = 1 } |
Enumerates the media types. |
OH_AVCProfile { AVC_PROFILE_BASELINE = 0, AVC_PROFILE_HIGH = 4, AVC_PROFILE_MAIN = 8 } |
Enumerates the AVC profiles. |
OH_HEVCProfile { HEVC_PROFILE_MAIN = 0, HEVC_PROFILE_MAIN_10 = 1, HEVC_PROFILE_MAIN_STILL = 2, HEVC_PROFILE_MAIN_10_HDR10 = 3, HEVC_PROFILE_MAIN_10_HDR10_PLUS = 4 } |
Enumerates the HEVC profiles. |
OH_AACProfile { AAC_PROFILE_LC = 0 } |
Enumerates the AAC profiles. |
OH_AVSeekMode { SEEK_MODE_NEXT_SYNC = 0, SEEK_MODE_PREVIOUS_SYNC, SEEK_MODE_CLOSEST_SYNC } |
Enumerates the seek modes. |
OH_ColorPrimary { COLOR_PRIMARY_BT709 = 1, COLOR_PRIMARY_UNSPECIFIED = 2, COLOR_PRIMARY_BT470_M = 4, COLOR_PRIMARY_BT601_625 = 5, COLOR_PRIMARY_BT601_525 = 6, COLOR_PRIMARY_SMPTE_ST240 = 7, COLOR_PRIMARY_GENERIC_FILM = 8, COLOR_PRIMARY_BT2020 = 9, COLOR_PRIMARY_SMPTE_ST428 = 10, COLOR_PRIMARY_P3DCI = 11, COLOR_PRIMARY_P3D65 = 12 } |
Enumerates the primary colors. |
OH_TransferCharacteristic { TRANSFER_CHARACTERISTIC_BT709 = 1, TRANSFER_CHARACTERISTIC_UNSPECIFIED = 2, TRANSFER_CHARACTERISTIC_GAMMA_2_2 = 4, TRANSFER_CHARACTERISTIC_GAMMA_2_8 = 5, TRANSFER_CHARACTERISTIC_BT601 = 6, TRANSFER_CHARACTERISTIC_SMPTE_ST240 = 7, TRANSFER_CHARACTERISTIC_LINEAR = 8, TRANSFER_CHARACTERISTIC_LOG = 9, TRANSFER_CHARACTERISTIC_LOG_SQRT = 10, TRANSFER_CHARACTERISTIC_IEC_61966_2_4 = 11, TRANSFER_CHARACTERISTIC_BT1361 = 12, TRANSFER_CHARACTERISTIC_IEC_61966_2_1 = 13, TRANSFER_CHARACTERISTIC_BT2020_10BIT = 14, TRANSFER_CHARACTERISTIC_BT2020_12BIT = 15, TRANSFER_CHARACTERISTIC_PQ = 16, TRANSFER_CHARACTERISTIC_SMPTE_ST428 = 17, TRANSFER_CHARACTERISTIC_HLG = 18 } |
Enumerates the transfer characteristics. |
OH_MatrixCoefficient { MATRIX_COEFFICIENT_IDENTITY = 0, MATRIX_COEFFICIENT_BT709 = 1, MATRIX_COEFFICIENT_UNSPECIFIED = 2, MATRIX_COEFFICIENT_FCC = 4, MATRIX_COEFFICIENT_BT601_625 = 5, MATRIX_COEFFICIENT_BT601_525 = 6, MATRIX_COEFFICIENT_SMPTE_ST240 = 7, MATRIX_COEFFICIENT_YCGCO = 8, MATRIX_COEFFICIENT_BT2020_NCL = 9, MATRIX_COEFFICIENT_BT2020_CL = 10, MATRIX_COEFFICIENT_SMPTE_ST2085 = 11, MATRIX_COEFFICIENT_CHROMATICITY_NCL = 12, MATRIX_COEFFICIENT_CHROMATICITY_CL = 13, MATRIX_COEFFICIENT_ICTCP = 14 } |
Enumerates the matrix coefficients. |
OH_BitsPerSample { SAMPLE_U8 = 0, SAMPLE_S16LE = 1, SAMPLE_S24LE = 2, SAMPLE_S32LE = 3, SAMPLE_F32LE = 4, SAMPLE_U8P = 5, SAMPLE_S16P = 6, SAMPLE_S24P = 7, SAMPLE_S32P = 8, SAMPLE_F32P = 9, INVALID_WIDTH = -1 } |
Enumerates the number of audio bits for each coded sample. |
Variables
Name | Description |
---|---|
OH_AVCodecBufferAttr::pts | Defines the display timestamp of the buffer, in microseconds. |
OH_AVCodecBufferAttr::size | Defines the size of data contained in the buffer, in bytes. |
OH_AVCodecBufferAttr::offset | Defines the offset of valid data in the buffer. |
OH_AVCodecBufferAttr::flags | Defines the flags of the buffer. It is a combination of multiple OH_AVCodecBufferFlags. |
OH_AVCodecAsyncCallback::onError | Defines the callback used to report a codec operation error. For details, see OH_AVCodecOnError. |
OH_AVCodecAsyncCallback::onStreamChanged | Defines the callback used to report a codec stream change. For details, see OH_AVCodecOnStreamChanged. |
OH_AVCodecAsyncCallback::onNeedInputData | Defines the callback used to report input data required. For details, see OH_AVCodecOnNeedInputData. |
OH_AVCodecAsyncCallback::onNeedOutputData | Defines the callback used to report output data generated. For details, see OH_AVCodecOnNewOutputData. |
*OH_AVCODEC_MIMETYPE_VIDEO_AVC | Defines the pointer to the Multipurpose Internet Mail Extension (MIME) type for AVC video codec. |
*OH_AVCODEC_MIMETYPE_AUDIO_AAC | Defines the pointer to the MIME type for AAC audio codec. |
*OH_AVCODEC_MIMETYPE_VIDEO_MPEG4 | Defines the pointer to the MIME type for MPEG4 video codec. |
*OH_AVCODEC_MIMETYPE_VIDEO_HEVC | Defines the pointer to the MIME type for HEVC video codec. |
*OH_AVCODEC_MIMETYPE_AUDIO_MPEG | Defines the pointer to the MIME type for MPEG audio codec. |
*OH_AVCODEC_MIMETYPE_IMAGE_JPG | Defines the pointer to the MIME type for JPG image codec. |
*OH_AVCODEC_MIMETYPE_IMAGE_PNG | Defines the pointer to the MIME type for PNG image codec. |
*OH_AVCODEC_MIMETYPE_IMAGE_BMP | Defines the pointer to the MIME type for BMP image codec. |
*OH_AVCODEC_MIMETYPE_AUDIO_FLAC | Defines the pointer to the MIME type for FLAC audio codec. |
*OH_AVCODEC_MIMETYPE_AUDIO_VORBIS | Defines the pointer to the MIME type for VORBIS audio codec. |
*OH_ED_KEY_TIME_STAMP | Defines the pointer to the timestamp in the extra data of the surface. The value type is int64. |
*OH_ED_KEY_EOS | Defines the pointer to the end of stream (EOS) in the extra data of the surface. The value type is Boolean. |
*OH_MD_KEY_TRACK_TYPE | Defines the pointer to a container for storing media descriptions. |
*OH_MD_KEY_CODEC_MIME | Define the pointer to the MIME type of codec. The value is a string. |
*OH_MD_KEY_DURATION | Defines the pointer to the duration. The value type is int64_t. |
*OH_MD_KEY_BITRATE | Defines the pointer to the bit rate. The value type is uint32_t. In the case of video encoding, you must set OH_MD_KEY_VIDEO_ENCODE_BITRATE_MODE, which specifies the bit rate. |
*OH_MD_KEY_MAX_INPUT_SIZE | Defines the pointer to the maximum input size. The value type is uint32_t. |
*OH_MD_KEY_WIDTH | Defines the pointer to the video width. The value type is uint32_t. |
*OH_MD_KEY_HEIGHT | Defines the pointer to the video height. The value type is uint32_t. |
*OH_MD_KEY_PIXEL_FORMAT | Defines the pointer to the video pixel format. The value type is int32_t. For details, see OH_AVPixelFormat. |
*OH_MD_KEY_RANGE_FLAG | Defines the pointer to the video YUV value range flag. The value type is Boolean. |
*OH_MD_KEY_COLOR_PRIMARIES | Defines the pointer to the primary color of the video. The value type is int32_t. |
*OH_MD_KEY_TRANSFER_CHARACTERISTICS | Defines the pointer to the video transfer characteristics. The value type is int32_t. |
*OH_MD_KEY_MATRIX_COEFFICIENTS | Defines the pointer to the video matrix coefficient. The value type is int32_t. |
*OH_MD_KEY_AUDIO_SAMPLE_FORMAT | Defines the pointer to the original audio format. The value type is uint32_t. |
*OH_MD_KEY_FRAME_RATE | Defines the pointer to the video frame rate. The value is a double-precision floating point number. |
*OH_MD_KEY_VIDEO_ENCODE_BITRATE_MODE | Defines the pointer to the video encoding bit rate mode. The value type is int32_t. For details, see OH_VideoEncodeBitrateMode. |
*OH_MD_KEY_PROFILE | Defines the pointer to the encoding template. The value is a number. For details, see OH_AVCProfile, OH_AACProfile, or OH_HEVCProfile. |
*OH_MD_KEY_AUD_CHANNEL_COUNT | Defines the pointer to the number of audio channels. The value type is uint32_t. |
*OH_MD_KEY_AUD_SAMPLE_RATE | Defines the pointer to the audio sampling rate. The value type is uint32_t. |
*OH_MD_KEY_I_FRAME_INTERVAL | Defines the pointer to the key frame interval, in milliseconds. The value type is int32_t. |
*OH_MD_KEY_ROTATION | Defines the pointer to the rotation angle of the surface. The value type is int32_t, and the value range is {0, 90, 180, 270}. The default value is 0. |
*OH_MD_KEY_CODEC_CONFIG | Defines the pointer to the codec-specific data. The value type is uint8_t*. |
*OH_MD_KEY_REQUEST_I_FRAME | Defines the pointer to the request for immediate encoding of I-frames. The value type is Boolean. |
*OH_MD_KEY_QUALITY | Defines the pointer to the required encoding quality. The value type is uint32_t. This key applies only to encoders configured in constant quality mode. |
*OH_MD_KEY_CHANNEL_LAYOUT | Defines the pointer to the required encoding channel layout. The value type is int64_t. This key applies only to encoders. |
*OH_MD_KEY_BITS_PER_CODED_SAMPLE | Defines the pointer to the number of bits for each coded sample. The value type is uint32_t. This key applies to FLAC encoders. For details, see OH_BitsPerSample. |
*OH_MD_KEY_AAC_IS_ADTS | Defines the pointer to the AAC format. The value type is uint32_t. This key applies to AAC decoders. |
*OH_MD_KEY_SBR | Defines the pointer to the AAC SBR format. The value type is uint32_t. This key applies to AAC encoders. |
*OH_MD_KEY_COMPLIANCE_LEVEL | Defines the pointer to the FLAC compliance level. The value type is int32_t. |
*OH_MD_KEY_IDENTIFICATION_HEADER | Defines the pointer to the VORBIS identification header. The value type is uint8_t*. This key applies only to VORBIS decoders. |
*OH_MD_KEY_SETUP_HEADER | Defines the pointer to the VORBIS setup header. The value type is uint8_t*. This key applies only to VORBIS decoders. |
*OH_MD_KEY_TITLE | Defines the pointer to the title of the input media. The value is a string. |
*OH_MD_KEY_ARTIST | Defines the pointer to the artist of the input media. The value is a string. |
*OH_MD_KEY_ALBUM | Defines the pointer to the album of the input media. The value is a string. |
*OH_MD_KEY_ALBUM_ARTIST | Defines the pointer to the album_artist of the input media. The value is a string. |
*OH_MD_KEY_DATE | Defines the pointer to the date of the input media. The value is a string. |
*OH_MD_KEY_COMMENT | Defines the pointer to the comment of the input media. The value is a string. |
*OH_MD_KEY_GENRE | Defines the pointer to the genre of the input media. The value is a string. |
*OH_MD_KEY_COPYRIGHT | Defines the pointer to the copyright of the input media. The value is a string. |
*OH_MD_KEY_LANGUAGE | Defines the pointer to the language of the input media. The value is a string. |
*OH_MD_KEY_DESCRIPTION | Defines the pointer to the description of the input media. The value is a string. |
*OH_MD_KEY_LYRICS | Defines the pointer to the lyrics of the input media. The value is a string. |
*OH_MD_KEY_TRACK_COUNT | Defines the pointer to the track count of the input media. The value type is uint32_t. |
Type Description
OH_AACProfile
typedef enum OH_AACProfile OH_AACProfile
Description
Defines an enum that enumerates the AAC profiles.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCodecAsyncCallback
typedef struct OH_AVCodecAsyncCallback OH_AVCodecAsyncCallback
Description
Defines a struct for all the asynchronous callback function pointers of an OH_AVCodec instance. To ensure the normal running of OH_AVCodec, you must register the instance of this struct with the OH_AVCodec instance and process the information reported by the callback function.
\@syscap SystemCapability.Multimedia.Media.CodecBase
Parameters
Name | Description |
---|---|
onError | Callback used to report a codec operation error. For details, see OH_AVCodecOnError. |
onStreamChanged | Callback used to report a codec stream change. For details, see OH_AVCodecOnStreamChanged. |
onNeedInputData | Callback used to report input data required. For details, see OH_AVCodecOnNeedInputData. |
onNeedOutputData | Callback used to report output data generated. For details, see OH_AVCodecOnNewOutputData. |
OH_AVCodecBufferAttr
typedef struct OH_AVCodecBufferAttr OH_AVCodecBufferAttr
Description
Defines a struct for the description information about the buffer of an OH_AVCodec instance.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCodecBufferFlags
typedef enum OH_AVCodecBufferFlags OH_AVCodecBufferFlags
Description
Defines an enum that enumerates the flags for the buffer of an OH_AVCodec instance.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCodecOnError
typedef void (*OH_AVCodecOnError) (OH_AVCodec *codec, int32_t errorCode, void *userData)
Description
Defines the pointer to the function that is called to report error information when an error occurs during the running of an OH_AVCodec instance.
\@syscap SystemCapability.Multimedia.Media.CodecBase
Parameters
Name | Description |
---|---|
codec | Pointer to an OH_AVCodec instance. |
errorCode | Error code. |
userData | Pointer to user-specific data. |
OH_AVCodecOnNeedInputData
typedef void (*OH_AVCodecOnNeedInputData) (OH_AVCodec *codec, uint32_t index, OH_AVMemory *data, void *userData)
Description
Defines the pointer to the function that is called when new input data is required during the running of an OH_AVCodec instance. The function carries a buffer to fill in new input data.
\@syscap SystemCapability.Multimedia.Media.CodecBase
Parameters
Name | Description |
---|---|
codec | Pointer to an OH_AVCodec instance. |
index | Index of the new input buffer. |
data | Pointer to the data to fill in the new input buffer. |
userData | Pointer to user-specific data. |
OH_AVCodecOnNewOutputData
typedef void (*OH_AVCodecOnNewOutputData) (OH_AVCodec *codec, uint32_t index, OH_AVMemory *data, OH_AVCodecBufferAttr *attr, void *userData)
Description
Defines the pointer to the function that is called when new output data is generated during the running of an OH_AVCodec instance. The function carries a buffer filled with new output data. Note that the lifecycle of the pointer to the OH_AVCodecBufferAttr instance is valid only when the function pointer is being called. Do not access the pointer to the instance after the function pointer is called.
\@syscap SystemCapability.Multimedia.Media.CodecBase
Parameters
Name | Description |
---|---|
codec | Pointer to an OH_AVCodec instance. |
index | Index of the new output buffer. |
data | Pointer to the data filled in the new output buffer. |
attr | Pointer to the description information about the new output buffer. For details, see OH_AVCodecBufferAttr. |
userData | Pointer to user-specific data. |
OH_AVCodecOnStreamChanged
typedef void (*OH_AVCodecOnStreamChanged) (OH_AVCodec *codec, OH_AVFormat *format, void *userData)
Description
Defines the pointer to the function that is called to report the new stream description when the output stream changes. Note that the lifecycle of the pointer to the OH_AVFormat instance is valid only when the function pointer is being called. Do not access the pointer to the instance after the function pointer is called.
\@syscap SystemCapability.Multimedia.Media.CodecBase
Parameters
Name | Description |
---|---|
codec | Pointer to an OH_AVCodec instance. |
format | Pointer to the description information about the new output stream. |
userData | Pointer to user-specific data. |
format carries the following fields: |Key |Description | |———————-|—————| |OH_MD_KEY_WIDTH |Video output width. | |OH_MD_KEY_HEIGHT |Video output height. | |OH_MD_KEY_PIXEL_FORMAT|Video output pixel format.|
OH_AVCProfile
typedef enum OH_AVCProfile OH_AVCProfile
Description
Defines an enum that enumerates the AVC profiles.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVOutputFormat
typedef enum OH_AVOutputFormat OH_AVOutputFormat
Description
Defines an enum that enumerates the output file formats of a muxer.
OH_AVSeekMode
typedef enum OH_AVSeekMode OH_AVSeekMode
Description
Defines an enum that enumerates the seek modes.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_BitsPerSample
typedef enum OH_BitsPerSample OH_BitsPerSample
Description
Defines an enum that enumerates the number of audio bits for each coded sample.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_ColorPrimary
typedef enum OH_ColorPrimary OH_ColorPrimary
Description
Defines an enum that enumerates the primary colors.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_HEVCProfile
typedef enum OH_HEVCProfile OH_HEVCProfile
Description
Defines an enum that enumerates the HEVC profiles.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_MatrixCoefficient
typedef enum OH_MatrixCoefficient OH_MatrixCoefficient
Description
Defines an enum that enumerates the matrix coefficients.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_MediaType
typedef enum OH_MediaType OH_MediaType
Description
Defines an enum that enumerates the media types.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_TransferCharacteristic
typedef enum OH_TransferCharacteristic OH_TransferCharacteristic
Description
Defines an enum that enumerates the transfer characteristics.
\@syscap SystemCapability.Multimedia.Media.CodecBase
Enum Description
OH_AACProfile
enum OH_AACProfile
Description
Enumerates the AAC profiles.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCodecBufferFlags
enum OH_AVCodecBufferFlags
Description
Enumerates the flags for the buffer of an OH_AVCodec instance.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCProfile
enum OH_AVCProfile
Description
Enumerates the AVC profiles.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVOutputFormat
enum OH_AVOutputFormat
Description
Enumerates the output file formats of a muxer.
OH_AVSeekMode
enum OH_AVSeekMode
Description
Enumerates the seek modes.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_BitsPerSample
enum OH_BitsPerSample
Description
Enumerates the number of audio bits for each coded sample.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_ColorPrimary
enum OH_ColorPrimary
Description
Enumerates the primary colors.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_HEVCProfile
enum OH_HEVCProfile
Description
Enumerates the HEVC profiles.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_MatrixCoefficient
enum OH_MatrixCoefficient
Description
Enumerates the matrix coefficients.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_MediaType
enum OH_MediaType
Description
Enumerates the media types.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_TransferCharacteristic
enum OH_TransferCharacteristic
Description
Enumerates the transfer characteristics.
\@syscap SystemCapability.Multimedia.Media.CodecBase
Variable Description
OH_AVCODEC_MIMETYPE_AUDIO_AAC
const char* OH_AVCODEC_MIMETYPE_AUDIO_AAC
Description
Defines the pointer to the MIME type for AAC audio codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_AUDIO_FLAC
const char* OH_AVCODEC_MIMETYPE_AUDIO_FLAC
Description
Defines the pointer to the MIME type for FLAC audio codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_AUDIO_MPEG
const char* OH_AVCODEC_MIMETYPE_AUDIO_MPEG
Description
Defines the pointer to the MIME type for MPEG audio codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_AUDIO_VORBIS
const char* OH_AVCODEC_MIMETYPE_AUDIO_VORBIS
Description
Defines the pointer to the MIME type for VORBIS audio codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_IMAGE_BMP
const char* OH_AVCODEC_MIMETYPE_IMAGE_BMP
Description
Defines the pointer to the MIME type for BMP image codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_IMAGE_JPG
const char* OH_AVCODEC_MIMETYPE_IMAGE_JPG
Description
Defines the pointer to the MIME type for JPG image codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_IMAGE_PNG
const char* OH_AVCODEC_MIMETYPE_IMAGE_PNG
Description
Defines the pointer to the MIME type for PNG image codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_VIDEO_AVC
const char* OH_AVCODEC_MIMETYPE_VIDEO_AVC
Description
Defines the pointer to the MIME type for AVC video codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_VIDEO_HEVC
const char* OH_AVCODEC_MIMETYPE_VIDEO_HEVC
Description
Defines the pointer to the MIME type for HEVC video codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_AVCODEC_MIMETYPE_VIDEO_MPEG4
const char* OH_AVCODEC_MIMETYPE_VIDEO_MPEG4
Description
Defines the pointer to the MIME type for MPEG4 video codec.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_ED_KEY_EOS
const char* OH_ED_KEY_EOS
Description
Defines the pointer to the EOS in the extra data of the surface. The value type is Boolean.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_ED_KEY_TIME_STAMP
const char* OH_ED_KEY_TIME_STAMP
Description
Defines the pointer to the timestamp in the extra data of the surface. The value type is int64.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_MD_KEY_AAC_IS_ADTS
const char* OH_MD_KEY_AAC_IS_ADTS
Description
Defines the pointer to the AAC format. The value type is uint32_t. This key applies to AAC decoders.
OH_MD_KEY_ALBUM
const char* OH_MD_KEY_ALBUM
Description
Defines the pointer to the album of the input media. The value is a string.
OH_MD_KEY_ALBUM_ARTIST
const char* OH_MD_KEY_ALBUM_ARTIST
Description
Defines the pointer to the album_artist of the input media. The value is a string.
OH_MD_KEY_ARTIST
const char* OH_MD_KEY_ARTIST
Description
Defines the pointer to the artist of the input media. The value is a string.
OH_MD_KEY_AUD_CHANNEL_COUNT
const char* OH_MD_KEY_AUD_CHANNEL_COUNT
Description
Defines the pointer to the number of audio channels. The value type is uint32_t.
OH_MD_KEY_AUD_SAMPLE_RATE
const char* OH_MD_KEY_AUD_SAMPLE_RATE
Description
Defines the pointer to the audio sampling rate. The value type is uint32_t.
OH_MD_KEY_AUDIO_SAMPLE_FORMAT
const char* OH_MD_KEY_AUDIO_SAMPLE_FORMAT
Description
Defines the pointer to the original audio format. The value type is uint32_t.
OH_MD_KEY_BITRATE
const char* OH_MD_KEY_BITRATE
Description
Defines the pointer to the bit rate. The value type is uint32_t. In the case of video encoding, you must set OH_MD_KEY_VIDEO_ENCODE_BITRATE_MODE, which specifies the bit rate.
OH_MD_KEY_BITS_PER_CODED_SAMPLE
const char* OH_MD_KEY_BITS_PER_CODED_SAMPLE
Description
Defines the pointer to the number of bits for each coded sample. The value type is uint32_t. This key applies to FLAC encoders.
OH_MD_KEY_CHANNEL_LAYOUT
const char* OH_MD_KEY_CHANNEL_LAYOUT
Description
Defines the pointer to the required encoding channel layout. The value type is int64_t. This key applies only to encoders.
OH_MD_KEY_CODEC_CONFIG
const char* OH_MD_KEY_CODEC_CONFIG
Description
Defines the pointer to the codec-specific data. The value type is uint8_t*.
OH_MD_KEY_CODEC_MIME
const char* OH_MD_KEY_CODEC_MIME
Description
Define the pointer to the MIME type of codec. The value is a string.
OH_MD_KEY_COLOR_PRIMARIES
const char* OH_MD_KEY_COLOR_PRIMARIES
Description
Defines the pointer to the primary color of the video. The value type is int32_t.
OH_MD_KEY_COMMENT
const char* OH_MD_KEY_COMMENT
Description
Defines the pointer to the comment of the input media. The value is a string.
OH_MD_KEY_COMPLIANCE_LEVEL
const char* OH_MD_KEY_COMPLIANCE_LEVEL
Description
Defines the pointer to the FLAC compliance level. The value type is int32_t.
OH_MD_KEY_COPYRIGHT
const char* OH_MD_KEY_COPYRIGHT
Description
Defines the pointer to the copyright of the input media. The value is a string.
OH_MD_KEY_DATE
const char* OH_MD_KEY_DATE
Description
Defines the pointer to the date of the input media. The value is a string.
OH_MD_KEY_DESCRIPTION
const char* OH_MD_KEY_DESCRIPTION
Description
Defines the pointer to the description of the input media. The value is a string.
OH_MD_KEY_DURATION
const char* OH_MD_KEY_DURATION
Description
Defines the pointer to the duration. The value type is int64_t.
OH_MD_KEY_FRAME_RATE
const char* OH_MD_KEY_FRAME_RATE
Description
Defines the pointer to the video frame rate. The value is a double-precision floating point number.
OH_MD_KEY_GENRE
const char* OH_MD_KEY_GENRE
Description
Defines the pointer to the genre of the input media. The value is a string.
OH_MD_KEY_HEIGHT
const char* OH_MD_KEY_HEIGHT
Description
Defines the pointer to the video height. The value type is uint32_t.
OH_MD_KEY_I_FRAME_INTERVAL
const char* OH_MD_KEY_I_FRAME_INTERVAL
Description
Defines the pointer to the key frame interval, in milliseconds. The value type is int32_t.
OH_MD_KEY_IDENTIFICATION_HEADER
const char* OH_MD_KEY_IDENTIFICATION_HEADER
Description
Defines the pointer to the VORBIS identification header. The value type is uint8_t*. This key applies only to VORBIS decoders.
OH_MD_KEY_LANGUAGE
const char* OH_MD_KEY_LANGUAGE
Description
Defines the pointer to the language of the input media. The value is a string.
OH_MD_KEY_LYRICS
const char* OH_MD_KEY_LYRICS
Description
Defines the pointer to the lyrics of the input media. The value is a string.
OH_MD_KEY_MATRIX_COEFFICIENTS
const char* OH_MD_KEY_MATRIX_COEFFICIENTS
Description
Defines the pointer to the video matrix coefficient. The value type is int32_t.
OH_MD_KEY_MAX_INPUT_SIZE
const char* OH_MD_KEY_MAX_INPUT_SIZE
Description
Defines the pointer to the maximum input size. The value type is uint32_t.
OH_MD_KEY_PIXEL_FORMAT
const char* OH_MD_KEY_PIXEL_FORMAT
Description
Defines the pointer to the video pixel format. The value type is int32_t. For details, see OH_AVPixelFormat.
OH_MD_KEY_PROFILE
const char* OH_MD_KEY_PROFILE
Description
Defines the pointer to the encoding template. The value is a number. For details, see OH_AVCProfile, OH_AACProfile, or OH_HEVCProfile.
OH_MD_KEY_QUALITY
const char* OH_MD_KEY_QUALITY
Description
Defines the pointer to the required encoding quality. The value type is uint32_t. This key applies only to encoders configured in constant quality mode.
OH_MD_KEY_RANGE_FLAG
const char* OH_MD_KEY_RANGE_FLAG
Description
Defines the pointer to the video YUV value range flag. The value type is Boolean.
OH_MD_KEY_REQUEST_I_FRAME
const char* OH_MD_KEY_REQUEST_I_FRAME
Description
Defines the pointer to the request for immediate encoding of I-frames. The value type is Boolean.
OH_MD_KEY_ROTATION
const char* OH_MD_KEY_ROTATION
Description
Defines the pointer to the rotation angle of the surface. The value type is int32_t, and the value range is {0, 90, 180, 270}. The default value is 0.
OH_MD_KEY_SBR
const char* OH_MD_KEY_SBR
Description
Defines the pointer to the AAC SBR format. The value type is uint32_t. This key applies to AAC encoders.
OH_MD_KEY_SETUP_HEADER
const char* OH_MD_KEY_SETUP_HEADER
Description
Defines the pointer to the VORBIS setup header. The value type is uint8_t*. This key applies only to VORBIS decoders.
OH_MD_KEY_TITLE
const char* OH_MD_KEY_TITLE
Description
Defines the pointer to the title of the input media. The value is a string.
OH_MD_KEY_TRACK_COUNT
const char* OH_MD_KEY_TRACK_COUNT
Description
Defines the pointer to the track count of the input media. The value type is uint32_t.
OH_MD_KEY_TRACK_TYPE
const char* OH_MD_KEY_TRACK_TYPE
Description
Defines the pointer to a container for storing media descriptions.
\@syscap SystemCapability.Multimedia.Media.CodecBase
OH_MD_KEY_TRANSFER_CHARACTERISTICS
const char* OH_MD_KEY_TRANSFER_CHARACTERISTICS
Description
Defines the pointer to the video transfer characteristics. The value type is int32_t.
OH_MD_KEY_VIDEO_ENCODE_BITRATE_MODE
const char* OH_MD_KEY_VIDEO_ENCODE_BITRATE_MODE
Description
Defines the pointer to the video encoding bit rate mode. The value type is int32_t. For details, see OH_VideoEncodeBitrateMode.
OH_MD_KEY_WIDTH
const char* OH_MD_KEY_WIDTH
Description
Defines the pointer to the video width. The value type is uint32_t.
你可能感兴趣的鸿蒙文章
- 所属分类: 后端技术
- 本文标签:
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦