harmony 鸿蒙CodecBase

  • 2023-06-24
  • 浏览 (571)

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

harmony 鸿蒙Native APIs

harmony 鸿蒙AVCapability

harmony 鸿蒙AVDemuxer

harmony 鸿蒙AVMuxer

harmony 鸿蒙AVScreenCapture

harmony 鸿蒙AVSource

harmony 鸿蒙AudioDecoder

harmony 鸿蒙AudioEncoder

harmony 鸿蒙Core

harmony 鸿蒙Drawing

0  赞