MediaCodec

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Devrath edited this page Nov 21, 2021 · 3 revisions

`Introduction`

MediaCodec is used to access the low-level media codecs.
Low level media codec include things like encoder and decoder.
Codec processes input data to provide and generate output data.
It processes the data asynchronously
It uses a set of input and output buffers as seen in the diagram above.

`How it works`

Client requests for the buffer packets from the codec.
Then client populates the buffer packets with data and sends the data back to the codec for processing.
The codec processes the buffer packets one by one and transforms them.
Finally the client again requests it or receives the transformed buffer packets.
After receiving the buffer packets from the codec, The client utilizes them and sends the emptied buffer packets back to codec.

`More information`

Codec is used to decode a media file and encode it to another one.