Which Video Encoders Are Guaranteed To Be Supported By Android Mediacodec Api?

Testing video encoding with the MediaCodec API in several devices, I noticed all of them have encoders for h264, h263, and MPEG-4. Are any of these guaranteed to be supported by al

Solution 1:

The Android Compatibility Definition Document (CDD) defines a set of mandatory features. Google "Android <version> CDD" to find the appropriate one.

For example, if you open the 4.3 CDD, and flip down to section 5.1 ("Media Codecs"), you can find a table of codecs. Section 5.2 ("Video Encoding") has some additional details.

Solution 2:

Not sure if there is a list of guaranteed codecs but you can list those supported by particular device:

intnumCodecs= MediaCodecList.getCodecCount();
 for (inti=0; i < numCodecs; i++) {
     MediaCodecInfocodecInfo= MediaCodecList.getCodecInfoAt(i);
     [...]
 }

More information in the docs: https://developer.android.com/reference/android/media/MediaCodecInfo.html