我尝试使用SCameraCaptureSession类捕获视频。使用此类的函数--setRepeatingRequest（描述here）时，我收到以下错误：
java.lang.IllegalArgumentException：CaptureRequest包含未配置的输入/输出表面！
正如我所注意到的，问题是因为MediaRecorder的Surface对象中出现了问题。但是，在使用早于8的Android版本时，它工作正常，并且只在运行Android 8的三星设备上发生崩溃。 没有谷歌搜索显示有关崩溃的任何有用信息，所以我认为这是一个很新的......
有没有人有任何信息？如何让MediaRecorder的表面在我提到的设备上正常工作？
重要说明：在8之前的任何Android版本上捕获视频精彩！
答案 0 :(得分：3)
似乎来自MediaRecorder的表面配置存在问题。如果传递自定义持久性曲面，它应该可以工作。
通过调用MediaCodec.createPersistentInputSurface（）实现表面
使用mediaRecorder.setInputSurface（yourSurface）传递它;
调用yourSurface.release（）。
注意：如果您决定使用此方法，请不要使用mediaRecorder.getSurface（）
参考文献：
MediaRecorder：MediaRecorder - Android Docs
MediaCodec：MediaCodec - Android Docs
答案 1 :(得分：1)
我有同样的例外，我解决了我的情况。 我案例的根本原因是我重新创建了SurfaceView的Surface。 当我改变它而不是重新创建Surface时，异常就消失了。
我的代码在Android 8.0之前也能正常运行
我的初始化相机如下。
CameraDevice mCameraDevice;
CameraCaptureSession mCameraCaptureSession;
CaptureRequest mCaptureRequest;
Surface mTextureViewSurface;
public void updateCameraState(boolean run) {
if (run) {
if (mTextureView == null || !mTextureView.isAvailable()) {
// wait until mTextureView is available
// then call updateCameraState() again via SurfaceTextureListener
return;
}
if (mCameraDevice == null) {
// open camera and wait until mCameraDevice is obtained.
// then call updateCameraState() again via CameraDevice.StateCallback
mCameraManager.openCamera(...);
return;
}
if (mCameraCaptureSession == null) {
// createCaptureSession and wait until mCameraCaptureSession is obtained.
// then call updateCameraState() again via CameraCaptureSession.StateCallback
mTextureViewSurface = new Surface(texture);
List<Surface> surfaces = Arrays.asList(mTextureViewSurface, mImageReader.getSurface());
mCameraDevice.createCaptureSession(surfaces, mSessionStateCallback, sHandler);
return;
}
if (mCaptureRequest == null) {
CaptureRequest.Builder builder = mCameraCaptureSession.getDevice().createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
/* Put some values into builder */
// *************************************************************************
// POINT: In my old code, It re-create Surface
// *************************************************************************
// Surface surface = new Surface(texture);
// builder.addTarget(surface);
builder.addTarget(mTextureViewSurface);
mCameraCaptureSession.setRepeatingRequest(builder.build(), mCaptureCallback, sHandler);
}
// fin
} else {
if (mCaptureRequest != null) {
mCaptureRequest = null;
}
// *************************************************************************
// POINT: I do not know release() is needed. But I add it here.
// *************************************************************************
if (mTextureViewSurface != null) {
mTextureViewSurface.release();
mTextureViewSurface = null;
}
if (mCameraCaptureSession != null) {
mCameraCaptureSession.close();
mCameraCaptureSession = null;
}
if (mCameraDevice != null) {
mCameraDevice.close();
mCameraDevice = null;
}
}
}
答案 2 :(得分：0)
我有同样的症状。 我解决了使用'SurfaceView'类 但未使用android.hardware.camera2 使用android.hardware.camera
解决了部分代码。
@Override
public void onPreviewFrame(byte[] data, Camera camera) {
// encoding data
encoding(data) ;
}
/**
* byte data encoding
* @param data
*/
private void encoding (byte[] data) {
// api 21 미만에 대해서 필요
ByteBuffer[] inputBuffers = this.mediaCodec.getInputBuffers();
ByteBuffer[] outputBuffers = this.mediaCodec.getOutputBuffers();
int inputBufferIndex = this.mediaCodec.dequeueInputBuffer(TIMEOUT_USEC/* wait time, nagative value is infinite */);
// data write 가능 할 경우
if (inputBufferIndex >= 0) {
// data null (마지막 데이터)
int length = 0, flags = MediaCodec.BUFFER_FLAG_END_OF_STREAM;
if (data != null) {
ByteBuffer inputBuffer = null;
if (CameraUtils.isCamera2()) inputBuffer = this.mediaCodec.getInputBuffer(inputBufferIndex);
else inputBuffer = inputBuffers[inputBufferIndex];
inputBuffer.clear();
inputBuffer.put(data);
length = data.length;
flags = 0;
}
/*
- index : dequeueInputBuffer 에서 return 받은 index 번호를 넣습니다.
- offset : 항상 0이겠지만 Buffer에 채워넣은 데이터의 시작 점을 지정할 수 있습니다.
- size : Buffer에 채워넣은 데이터 사이즈 정보
- presentationTimeUs : 디코딩의 경우 Play 할 데이터의 시간(마이크로 초)
- flags : 읽은 버퍼의 정보가 설정값인지 BUFFER_FLAG_CODEC_CONFIG, 마지막 데이터인지BUFFER_FLAG_END_OF_STREAM에 대한 정보를 초기화 할 수 있습니다.
대부분은 0을 채워넣고 마지막 데이터를 알리기 위해서는 BUFFER_FLAGS_END_OF_STREAM을 넣습니다.
*/
this.mediaCodec.queueInputBuffer(inputBufferIndex, 0, length, computePresentationTimeNsec(), flags);
}
MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo();
int outputBufferIndex = this.mediaCodec.dequeueOutputBuffer(bufferInfo, TIMEOUT_USEC/* wait time, nagative value is infinite */);
switch (outputBufferIndex) {
/*
MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED
- Buffer 정보가 1번 변경되게 됩니다.
- API 21인 Lollipop 부터는 이 @deprecated 되었기에 불필요하지만 이전 API에서는 꼭 필요한 정보입니다. 이게 호출되면 처음에 생성한 ByteBuffer[] 배열의 변화가 일어나게 됩니다.
*/
case MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED:
Log.i(TAG, "INFO_OUTPUT_BUFFERS_CHANGED");
outputBuffers = this.mediaCodec.getOutputBuffers();
break;
/*MediaCodec.INFO_OUTPUT_FORMAT_CHANGED
- 처음에 생성하였든 MediaFormat을 기억하시는지요. 그 MediaFormat이 변경된 정보를 알려주게됩니다.
- 이 경우는 Encoder에서만 주로 사용하고, 디코더에서는 사용할 일은 없습니다.
*/
case MediaCodec.INFO_OUTPUT_FORMAT_CHANGED:
if (this.isMuxerStart) throw new RuntimeException("Format changed twice");
Log.d(TAG, "INFO_OUTPUT_FORMAT_CHANGED format : " + this.mediaCodec.getOutputFormat());
this.trackId = this.mediaMuxer.addTrack(this.mediaCodec.getOutputFormat());
this.mediaMuxer.start();
this.isMuxerStart = true;
break;
/*MediaCodec.INFO_TRY_AGAIN_LATER
- 이 함수가 호출되는 경우라면 사실 무시하여도 됩니다.
*/
case MediaCodec.INFO_TRY_AGAIN_LATER:
break;
/*outputBufferIndex >= 0
- 이 경우에 실제 디코딩 된 데이터가 들어오는 경우에 해당됩니다.
*/
default:
while (outputBufferIndex >= 0 && this.mediaCodec != null && this.mediaMuxer != null) {
ByteBuffer outputBuffer = null;
if (CameraUtils.isCamera2()) outputBuffer = this.mediaCodec.getOutputBuffer(outputBufferIndex);
else outputBuffer = outputBuffers[outputBufferIndex];
// null exception
if (outputBuffer == null)
throw new RuntimeException("EncoderOutputBuffer " + outputBuffer + " was NULL");
if ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) != 0) {
// The codec config data was pulled out and fed to the muxer when we got
// the INFO_OUTPUT_FORMAT_CHANGED status. Ignore it.
bufferInfo.size = 0;
}
if (bufferInfo.size >= 0) {
if (!this.isMuxerStart) throw new RuntimeException("MediaMuxer hasn't started");
// 프레임의 타임스탬프 작성
bufferInfo.presentationTimeUs = computePresentationTimeNsec();
this.prevTime = bufferInfo.presentationTimeUs;
this.mediaMuxer.writeSampleData(this.trackId, outputBuffer, bufferInfo);
}
this.mediaCodec.releaseOutputBuffer(outputBufferIndex, false/* true is surface init */);
outputBufferIndex = this.mediaCodec.dequeueOutputBuffer(bufferInfo, TIMEOUT_USEC/* wait time, nagative value is infinite */);
// end of frame
if ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
// release
releaseRecorder();
// 저장 완료
onCompleteEncoding(recordPath);
stopEncodingThread();
return;
}
}
break;
}
}
答案 3 :(得分：0)
我遇到了与您同样的问题。只有在使用三星 SCamera SDK 中的SCameraProcessor后，它才能正常工作。
我建议您下载他们提供的示例APK并仔细看一下，但这是一个片段，其中包含您需要更多注意的主要部分：
设置：
SCamera sCamera = new SCamera();
sCamera.initialize(this);
...
SCameraProcessorManager processorManager = sCamera.getSCameraProcessorManager();
SCameraEffectProcessor processor = processorManager
.createProcessor(SCameraProcessorManager.PROCESSOR_TYPE_EFFECT);
...
processor.initialize();
...
// Carry out the opening process of the camera device here.
...
processor.setOutputSurface(outputSurface);
Surface cameraSurface = processor.getInputSurface();
// 'cameraSurface' above must then be added as a target to your
// SCaptureRequest.Builder and given as part of the surfaces list
// to have configured when calling SCameraDevice.createCaptureRequest().
开始录制：
// After setting up your MediaRecorder object...
processor.setRecordingSurface(mediaRecorder.getSurface());
mediaRecorder.start();
停止录制：
processor.setRecordingSurface(null);
mediaRecorder.stop();
mediaRecorder.reset();
参考文献：
我希望这会有所帮助！
答案 4 :(得分：0)
如果您使用的是androidx库，我建议更新到该库的最新版本（1.0.0-alpha03），如changelog所述，应解决此问题。
https://developer.android.com/jetpack/androidx/releases/camera#1.0.0-alpha03