Xiaomi Redmi Note 8 Pro 64Gb+6Gb Dual LTE [65/132] Network protocols

If device implementations do not meet the requirements for low-latency audio via both the OpenSL

ES PCM buffer queue and AAudio native audio APIs, they:

[C-1-1] MUST NOT report support for low-latency audio.

If device implementations include android.hardware.microphone , they are STRONGLY RECOMMENDED to

meet these input audio requirements:

[C-SR] Cold input latency of 100 milliseconds or less.

[C-SR] Continuous input latency of 30 milliseconds or less.

[C-SR] Continuous round-trip latency of 50 milliseconds or less.

[C-SR] Minimize the cold input jitter.

[C-SR] Limit the error in input timestamps, as returned by AudioRecord.getTimestamp or

AAudioStream_getTimestamp , to +/- 1 ms.

5.7. Network Protocols

Device implementations MUST support the media network protocols for audio and video playback as

specified in the Android SDK documentation.

If device implementations include an audio or a video decoder, they:

[C-1-1] MUST support all required codecs and container formats in section 5.1 over

HTTP(S).

[C-1-2] MUST support the media segment formats shown in the Media Segment Formats

table below over HTTP Live Streaming draft protocol, Version 7 .

[C-1-3] MUST support the following RTP audio video profile and related codecs in the

RTSP table below. For exceptions please see the table footnotes in section 5.1 .

Media Segment Formats

Segment formats Reference(s) Required codec support

MPEG-2 Transport Stream ISO 13818

Video codecs:

H264 AVC

MPEG-4 SP

MPEG-2

See section 5.1.3 for details on H264 AVC,

MPEG2-4 SP,

and MPEG-2.

Audio codecs:

AAC

See section 5.1.1 for details on AAC and its

variants.

AAC with ADTS framing and ID3