Xiaomi Redmi Note 8 64Gb+6Gb Dual LTE [53/132] Media codecs

Device implementations:

SHOULD aim for minimum codec latency, in other words, they:

SHOULD NOT consume and store input buffers and return input buffers only

once processed.

SHOULD NOT hold onto decoded buffers for longer than as specified by the

standard (e.g. SPS).

SHOULD NOT hold onto encoded buffers longer than required by the GOP

structure.

All of the codecs listed in the section below are provided as software implementations in the

preferred Android implementation from the Android Open Source Project.

Please note that neither Google nor the Open Handset Alliance make any representation that these

codecs are free from third-party patents. Those intending to use this source code in hardware or

software products are advised that implementations of this code, including in open source software

or shareware, may require patent licenses from the relevant patent holders.

5.1. Media Codecs

5.1.1. Audio Encoding

See more details in 5.1.3. Audio Codecs Details .

If device implementations declare android.hardware.microphone , they MUST support the following audio

encoding:

[C-1-1] PCM/WAVE

5.1.2. Audio Decoding

See more details in 5.1.3. Audio Codecs Details .

If device implementations declare support for the android.hardware.audio.output feature, they must

support decoding the following audio formats:

[C-1-1] MPEG-4 AAC Profile (AAC LC)

[C-1-2] MPEG-4 HE AAC Profile (AAC+)

[C-1-3] MPEG-4 HE AACv2 Profile (enhanced AAC+)

[C-1-4] AAC ELD (enhanced low delay AAC)

[C-1-11] xHE-AAC (ISO/IEC 23003-3 Extended HE AAC Profile, which includes the USAC

Baseline Profile, and ISO/IEC 23003-4 Dynamic Range Control Profile)

[C-1-5] FLAC

[C-1-6] MP3

[C-1-7] MIDI

[C-1-8] Vorbis

[C-1-9] PCM/WAVE

[C-1-10] Opus

If device implementations support the decoding of AAC input buffers of multichannel streams (i.e.

more than two channels) to PCM through the default AAC audio decoder in the android.media.MediaCodec

API, the following MUST be supported:

[C-2-1] Decoding MUST be performed without downmixing (e.g. a 5.0 AAC stream must be

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