问题
I'm trying to directly decode the H.264 encoded camera output of the Raspberry Pi camera module on an android device, but my code fails to properly decode the file. I get no output, and as the last frame I get a garbled image.
As I am parsing the input file myself (it is an H.264 byte-stream) into NAL units, I'm left with a question: when feeding them to the MediaCodec buffers, do I feed the NAL unit separator into the buffer as well?
回答1:
The MediaCodec decoder requires an H.264 elementary stream, and wants one access unit per buffer. You also need to supply SPS/PPS before the first data packet (either through the BUFFER_FLAG_CODEC_CONFIG flag or by adding it to the MediaFormat).
See also this question.
来源：https://stackoverflow.com/questions/20077240/android-mediacodec-not-working