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android.settings.MANAGE_UNKNOWN_APP_SOURCES intent.

[C-0-6] MUST NOT install application packages from unknown sources, unless the app

that requests the installation meets all the following requirements:

It MUST declare the REQUEST_INSTALL_PACKAGES permission or have the

android:targetSdkVersion set at 24 or lower.

It MUST have been granted permission by the user to install apps from

unknown sources.

SHOULD provide a user affordance to grant/revoke the permission to install apps from

unknown sources per application, but MAY choose to implement this as a no-op and

return RESULT_CANCELED for startActivityForResult() , if the device implementation does not

want to allow users to have this choice. However, even in such cases, they SHOULD

indicate to the user why there is no such choice presented.

5. Multimedia Compatibility

Device implementations:

[C-0-1] MUST support the media formats, encoders, decoders, file types, and container

formats defined in section 5.1 for each and every codec declared by MediaCodecList .

[C-0-2] MUST declare and report support of the encoders, decoders available to third-

party applications via MediaCodecList .

[C-0-3] MUST be able to decode and make available to third-party apps all the formats it

can encode. This includes all bitstreams that its encoders generate and the profiles

reported in its CamcorderProfile .

Device implementations:

SHOULD aim for minimum codec latency, in others 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

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