import net.majorkernelpanic.streaming.mp4.MP4Config; //导入依赖的package包/类
@SuppressLint("NewApi")
private MP4Config testMediaCodecAPI() throws RuntimeException, IOException {
	createCamera();
	updateCamera();
	try {
		if (mQuality.resX>=640) {
			// Using the MediaCodec API with the buffer method for high resolutions is too slow
			mMode = MODE_MEDIARECORDER_API;
		}
		EncoderDebugger debugger = EncoderDebugger.debug(mSettings, mQuality.resX, mQuality.resY);
		return new MP4Config(debugger.getB64SPS(), debugger.getB64PPS());
	} catch (Exception e) {
		// Fallback on the old streaming method using the MediaRecorder API
		Log.e(TAG,"Resolution not supported with the MediaCodec API, we fallback on the old streamign method.");
		mMode = MODE_MEDIARECORDER_API;
		return testH264();
	}
}
 

import net.majorkernelpanic.streaming.mp4.MP4Config; //导入依赖的package包/类
/**
 * Returns a description of the stream using SDP. It can then be included in an SDP file.
 * Will fail if called when streaming.
 */
public String generateSessionDescription() throws IllegalStateException, IOException {
	MP4Config config = testH264();

	return "m=video "+String.valueOf(getDestinationPorts()[0])+" RTP/AVP 96\r\n" +
	"a=rtpmap:96 H264/90000\r\n" +
	"a=fmtp:96 packetization-mode=1;profile-level-id="+config.getProfileLevel()+";sprop-parameter-sets="+config.getB64SPS()+","+config.getB64PPS()+";\r\n";
}
 

import net.majorkernelpanic.streaming.mp4.MP4Config; //导入依赖的package包/类
/** 
 * Tests if streaming with the given configuration (bit rate, frame rate, resolution) is possible 
 * and determines the pps and sps. Should not be called by the UI thread.
 **/
private MP4Config testH264() throws IllegalStateException, IOException {
	if (mMode != MODE_MEDIARECORDER_API) return testMediaCodecAPI();
	else return testMediaRecorderAPI();
}