I'm trying to create a very simple test to see how effective the new
MediaCodec class might be. What I've found is that I can't even get past
the simple stage of configuring the most basic video encoder.
MediaCodec mCodec = MediaCodec.createEncoderByType("video/avc");
MediaFormat myFormat = MediaFormat.createVideoFormat("video/avc",
VIDEO_WIDTH, VIDEO_HEIGHT);
mCodec.configure(myFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
This throws an IllegalStateException:
10-16 10:25:30.995: I/OMXClient(17664): Using client-side OMX mux.
10-16 10:25:30.995: D/NvOsDebugPrintf(126): NvxLiteH264DecoderInit :
Opening TVMR H264 block
10-16 10:25:30.995: E/MediaCodec(17664): native_window_api_connect returned
an error: Invalid argument (-22)
10-16 10:25:30.995: W/dalvikvm(17664): threadid=12: thread exiting with
uncaught exception (group=0x40dbb300)
10-16 10:25:30.995: E/AndroidRuntime(17664): FATAL EXCEPTION: Thread-2554
10-16 10:25:30.995: E/AndroidRuntime(17664): java.lang.IllegalStateException
10-16 10:25:30.995: E/AndroidRuntime(17664): at
android.media.MediaCodec.native_configure(Native Method)
10-16 10:25:30.995: E/AndroidRuntime(17664): at
android.media.MediaCodec.configure(MediaCodec.java:257)
10-16 10:25:30.995: E/AndroidRuntime(17664): at
com.foo.RecordingThread.run(RecordingThread.java:58)
It doesn't get any more basic than what I'm doing here. That video/avc
codec is definitely supported by my nexus 7 by the way.
I'm beginning to suspect that the reason there are no samples or tutorials
using MediaCodec beyond a powerpoint presentation from the I/O conference
is because it's not really ready for use.
I sure would love to hear if someone has some code that actually can encode
video using MediaCodec.
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