MediaCodec
A multimedia codec API provided by the Android platform that supports hardware-accelerated audio and video encoding and decoding, used to implement efficient video compression and processing.
Timeline (last 90 days)
In the new editing pipeline, MediaCodec directly manages codecs and hardware buffers, and custom frame processors can read and write buffers in place, achieving zero-copy.
Local video encoding on mobile typically uses hardware encoders for acceleration, with iOS using VideoToolbox and Android using MediaCodec.
Android's MediaCodec API provides an explicit BUFFER_FLAG_END_OF_STREAM signal to trigger the encoder drain process; closing the stream before all frames are written out will cause the last few frames of data to be lost and the audio to be truncated.
All Facts (3)
In the new editing pipeline, MediaCodec directly manages codecs and hardware buffers, and custom frame processors can read and write buffers in place, achieving zero-copy.
50%UnverifiedLocal video encoding on mobile typically uses hardware encoders for acceleration, with iOS using VideoToolbox and Android using MediaCodec.
50%UnverifiedAndroid's MediaCodec API provides an explicit BUFFER_FLAG_END_OF_STREAM signal to trigger the encoder drain process; closing the stream before all frames are written out will cause the last few frames of data to be lost and the audio to be truncated.
50%