harmony 鸿蒙AVCodec Supported Formats

2025-06-12
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AVCodec Supported Formats

Media Codec

Video Decoding

Currently, the following decoding capabilities are supported:

Video Hardware Decoding Type	Video Software Decoding Type
AVC (H.264), HEVC (H.265)	MPEG2, MPEG4, H.263, AVC (H.264)

Video software decoding and hardware decoding are different. When a decoder is created based on the MIME type, only MPEG2 (OH_AVCODEC_MIMETYPE_VIDEO_MPEG2), MPEG4 (OH_AVCODEC_MIMETYPE_VIDEO_MPEG4_PART2), H.263 (OH_AVCODEC_MIMETYPE_VIDEO_H263), and H.264 (OH_AVCODEC_MIMETYPE_VIDEO_AVC) are supported for software decoding, and H.264 (OH_AVCODEC_MIMETYPE_VIDEO_AVC) and H.265 (OH_AVCODEC_MIMETYPE_VIDEO_HEVC) can be used for hardware decoding as long as they are supported by the hardware platform.

For details about the range of each decoding capability, see Obtaining Supported Codecs.

For details about the development guide, see Video Decoding.

Video Encoding

Currently, the following encoding capabilities are supported:

Video Encoding Type
HEVC (H.265), AVC (H.264)

Only hardware encoding is supported. When an encoder is created based on the MIME type, H.264 (OH_AVCODEC_MIMETYPE_VIDEO_AVC) and H.265 (OH_AVCODEC_MIMETYPE_VIDEO_HEVC) are supported.

For details about the range of each encoding capability, see Obtaining Supported Codecs.

For details about the development guide, see Video Encoding.

Audio Decoding

Currently, the following decoding capabilities are supported:

AAC, MPEG (MP3), FLAC, Vorbis, AMR (AMR-NB and AMR-WB), G.711Mu, APE

For details about the development guide, see Audio Decoding.

Audio Encoding

Currently, the following encoding capabilities are supported:

AAC, FLAC, MP3, G.711Mu

For details about the development guide, see Audio Encoding.

Media Data Multiplexing and Demultiplexing

Media Data Demultiplexing

The following formats are supported:

Media Format	Container Format	Stream Format
Audio/Video	mp4	Video stream: AVC (H.264) and MPEG4; audio stream: AAC and MPEG (MP3); subtitle stream: WEBVTT
Audio/Video	fmp4	Video stream: AVC (H.264); audio stream: AAC and MPEG (MP3)
Audio/Video	mkv	Video stream: AVC (H.264); audio stream: AAC, MPEG (MP3), and OPUS
Audio/Video	mpeg-ts	Video stream: AVC (H.264), MPEG2, and MPEG4; audio stream: AAC and MPEG (MP3)
Audio/Video	flv	Video stream: AVC (H.264); audio stream: AAC
Audio/Video	mpeg-ps	Video stream: AVC (H.264) and MPEG2; audio stream: MPEG (MP2 and MP3)
Audio/Video	avi	Video stream: H.263, AVC (H.264), MPEG2, and MPEG4; audio stream: AAC, MPEG (MP2 and MP3), and PCM
Audio	m4a	Audio stream: AAC
Audio	aac	Audio stream: AAC
Audio	mp3	Audio stream: MPEG (MP3)
Audio	ogg	Audio stream: Vorbis
Audio	flac	Audio stream: FLAC
Audio	wav	Audio stream: PCM and G.711Mu
Audio	amr	Audio stream: AMR (AMR-NB and AMR-WB)
Audio	ape	Audio stream: APE
External subtitle	srt	Subtitle stream: SRT
External subtitle	webvtt	Subtitle stream: WEBVTT

The DRM demultiplexing capability supports the following formats: mp4 (H.264 and AAC) and mpeg-ts (H.264 and AAC).

For details about the development guide, see Media Data Demultiplexing.

Media Data Multiplexing

Currently, the following muxer capabilities are supported:

Container Format	Video Codec Type	Audio Codec Type	Cover Type
mp4	AVC (H.264)	AAC, MPEG (MP3)	jpeg, png, bmp
m4a	-	AAC	jpeg, png, bmp
mp3	-	MPEG (MP3)	-
amr	-	AMR (AMR-NB and AMR-WB)	-
wav	-	G711mu (pcm-mulaw)	-
aac	-	AAC	-

NOTE

When the container format is MP4 and the audio codec type is MPEG (MP3), the sampling rate must be greater than or equal to 16000 Hz.

When the container format is MP4 or M4A and the audio codec type is AAC, the number of audio channels ranges from 1 to 7.

Key values of configuration options are described as follows:

mp4 container format | key | Description | aac| mp3| H.264| H.265| jpg | png | bmp | |———————————-|:——————:|:—-:|:—-:|:—-:|:—-:|:—-:|:—-:|:—-:| |OH_MD_KEY_AUD_SAMPLE_RATE |Sampling rate | Mandatory| Mandatory| - | - | - | - | - | |OH_MD_KEY_AUD_CHANNEL_COUNT |Number of audio channels | Mandatory| Mandatory| - | - | - | - | - | |OH_MD_KEY_AUDIO_SAMPLE_FORMAT |Output audio stream format | Optional| Optional| - | - | - | - | - | |OH_MD_KEY_CHANNEL_LAYOUT |Channel layout | Optional| Optional| - | - | - | - | - | |OH_MD_KEY_PROFILE |Encoding profile | Optional| - | - | - | - | - | - | |OH_MD_KEY_BITRATE |Bit rate | Optional| Optional| Optional| Optional| - | - | - | |OH_MD_KEY_CODEC_CONFIG |Codec-specific data | Optional| - | Optional| Optional| - | - | - | |OH_MD_KEY_WIDTH |Width | - | - | Mandatory| Mandatory| Mandatory| Mandatory| Mandatory| |OH_MD_KEY_HEIGHT |Height | - | - | Mandatory| Mandatory| Mandatory| Mandatory| Mandatory| |OH_MD_KEY_FRAME_RATE |Video stream frame rate | - | - | Optional| Optional| - | - | - | |OH_MD_KEY_COLOR_PRIMARIES |Video color gamut | - | - | Optional| Optional| - | - | - | |OH_MD_KEY_TRANSFER_CHARACTERISTICS|Video transfer function | - | - | Optional| Optional| - | - | - | |OH_MD_KEY_MATRIX_COEFFICIENTS |Video matrix coefficient | - | - | Optional| Optional| - | - | - | |OH_MD_KEY_RANGE_FLAG |Value range flag | - | - | Optional| Optional| - | - | - | |OH_MD_KEY_VIDEO_IS_HDR_VIVID |Whether the video track is an HDR Vivid| - | - | - | Optional| - | - | - |

m4a container format | key | Description | aac| jpg | png | bmp | |———————————-|:——————:|:—-:|:—-:|:—-:|:—-:| |OH_MD_KEY_AUD_SAMPLE_RATE |Sampling rate | Mandatory| - | - | - | |OH_MD_KEY_AUD_CHANNEL_COUNT |Number of audio channels | Mandatory| - | - | - | |OH_MD_KEY_AUDIO_SAMPLE_FORMAT |Output audio stream format | Optional| - | - | - | |OH_MD_KEY_CHANNEL_LAYOUT |Channel layout | Optional| - | - | - | |OH_MD_KEY_PROFILE |Encoding profile | Optional| - | - | - | |OH_MD_KEY_BITRATE |Bit rate | Optional| - | - | - | |OH_MD_KEY_CODEC_CONFIG |Codec-specific data | Optional| - | - | - | |OH_MD_KEY_WIDTH |Width | - | Mandatory| Mandatory| Mandatory| |OH_MD_KEY_HEIGHT |Height | - | Mandatory| Mandatory| Mandatory|

For details about the development guide, see Media Data Multiplexing.