MediaMuxer error “Failed to stop the muxer”

Question

I\'m encoding Camera preview data using MediaCodec with mime-type \"video/avc\" and passing the encoded data (video-only, no audio) to MediaM

Answer 1

E/MPEG4Writer(2166): Missing codec specific data

Sounds like you didn't call MediaMuxer#addTrack() with a MediaFormat that included the CSD. See the EncodeAndMuxTest.java code for an example of how to do this.

Looking at the MPEG4Writer implementation used by MediaMuxer, there's an isTrackMalformed() check on line 2360; it sets ERROR_MALFORMED if the CSD data isn't present, but doesn't return immediately. Nothing clears the error, so it'll do a bunch of work and then fail, which seems to match what you're seeing.