| /* |
| * Copyright 2017 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| package org.webrtc; |
| |
| import android.annotation.TargetApi; |
| import android.media.MediaCodec; |
| import android.media.MediaCodecInfo.CodecCapabilities; |
| import android.media.MediaFormat; |
| import android.os.SystemClock; |
| import android.view.Surface; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.concurrent.BlockingDeque; |
| import java.util.concurrent.LinkedBlockingDeque; |
| import java.util.concurrent.TimeUnit; |
| import javax.annotation.Nullable; |
| import org.webrtc.ThreadUtils.ThreadChecker; |
| |
| /** |
| * Android hardware video decoder. |
| */ |
| @TargetApi(16) |
| @SuppressWarnings("deprecation") |
| // Cannot support API 16 without using deprecated methods. |
| // TODO(sakal): Rename to MediaCodecVideoDecoder once the deprecated implementation is removed. |
| class AndroidVideoDecoder implements VideoDecoder, VideoSink { |
| private static final String TAG = "AndroidVideoDecoder"; |
| |
| // TODO(magjed): Use MediaFormat.KEY_* constants when part of the public API. |
| private static final String MEDIA_FORMAT_KEY_STRIDE = "stride"; |
| private static final String MEDIA_FORMAT_KEY_SLICE_HEIGHT = "slice-height"; |
| private static final String MEDIA_FORMAT_KEY_CROP_LEFT = "crop-left"; |
| private static final String MEDIA_FORMAT_KEY_CROP_RIGHT = "crop-right"; |
| private static final String MEDIA_FORMAT_KEY_CROP_TOP = "crop-top"; |
| private static final String MEDIA_FORMAT_KEY_CROP_BOTTOM = "crop-bottom"; |
| |
| // MediaCodec.release() occasionally hangs. Release stops waiting and reports failure after |
| // this timeout. |
| private static final int MEDIA_CODEC_RELEASE_TIMEOUT_MS = 5000; |
| |
| // WebRTC queues input frames quickly in the beginning on the call. Wait for input buffers with a |
| // long timeout (500 ms) to prevent this from causing the codec to return an error. |
| private static final int DEQUEUE_INPUT_TIMEOUT_US = 500000; |
| |
| // Dequeuing an output buffer will block until a buffer is available (up to 100 milliseconds). |
| // If this timeout is exceeded, the output thread will unblock and check if the decoder is still |
| // running. If it is, it will block on dequeue again. Otherwise, it will stop and release the |
| // MediaCodec. |
| private static final int DEQUEUE_OUTPUT_BUFFER_TIMEOUT_US = 100000; |
| |
| private final MediaCodecWrapperFactory mediaCodecWrapperFactory; |
| private final String codecName; |
| private final VideoCodecType codecType; |
| |
| private static class FrameInfo { |
| final long decodeStartTimeMs; |
| final int rotation; |
| |
| FrameInfo(long decodeStartTimeMs, int rotation) { |
| this.decodeStartTimeMs = decodeStartTimeMs; |
| this.rotation = rotation; |
| } |
| } |
| |
| private final BlockingDeque<FrameInfo> frameInfos; |
| private int colorFormat; |
| |
| // Output thread runs a loop which polls MediaCodec for decoded output buffers. It reformats |
| // those buffers into VideoFrames and delivers them to the callback. Variable is set on decoder |
| // thread and is immutable while the codec is running. |
| @Nullable private Thread outputThread; |
| |
| // Checker that ensures work is run on the output thread. |
| private ThreadChecker outputThreadChecker; |
| |
| // Checker that ensures work is run on the decoder thread. The decoder thread is owned by the |
| // caller and must be used to call initDecode, decode, and release. |
| private ThreadChecker decoderThreadChecker; |
| |
| private volatile boolean running; |
| @Nullable private volatile Exception shutdownException; |
| |
| // Dimensions (width, height, stride, and sliceHeight) may be accessed by either the decode thread |
| // or the output thread. Accesses should be protected with this lock. |
| private final Object dimensionLock = new Object(); |
| private int width; |
| private int height; |
| private int stride; |
| private int sliceHeight; |
| |
| // Whether the decoder has finished the first frame. The codec may not change output dimensions |
| // after delivering the first frame. Only accessed on the output thread while the decoder is |
| // running. |
| private boolean hasDecodedFirstFrame; |
| // Whether the decoder has seen a key frame. The first frame must be a key frame. Only accessed |
| // on the decoder thread. |
| private boolean keyFrameRequired; |
| |
| private final @Nullable EglBase.Context sharedContext; |
| // Valid and immutable while the decoder is running. |
| @Nullable private SurfaceTextureHelper surfaceTextureHelper; |
| @Nullable private Surface surface; |
| |
| private static class DecodedTextureMetadata { |
| final long presentationTimestampUs; |
| final Integer decodeTimeMs; |
| |
| DecodedTextureMetadata(long presentationTimestampUs, Integer decodeTimeMs) { |
| this.presentationTimestampUs = presentationTimestampUs; |
| this.decodeTimeMs = decodeTimeMs; |
| } |
| } |
| |
| // Metadata for the last frame rendered to the texture. |
| private final Object renderedTextureMetadataLock = new Object(); |
| @Nullable private DecodedTextureMetadata renderedTextureMetadata; |
| |
| // Decoding proceeds asynchronously. This callback returns decoded frames to the caller. Valid |
| // and immutable while the decoder is running. |
| @Nullable private Callback callback; |
| |
| // Valid and immutable while the decoder is running. |
| @Nullable private MediaCodecWrapper codec; |
| |
| AndroidVideoDecoder(MediaCodecWrapperFactory mediaCodecWrapperFactory, String codecName, |
| VideoCodecType codecType, int colorFormat, @Nullable EglBase.Context sharedContext) { |
| if (!isSupportedColorFormat(colorFormat)) { |
| throw new IllegalArgumentException("Unsupported color format: " + colorFormat); |
| } |
| Logging.d(TAG, |
| "ctor name: " + codecName + " type: " + codecType + " color format: " + colorFormat |
| + " context: " + sharedContext); |
| this.mediaCodecWrapperFactory = mediaCodecWrapperFactory; |
| this.codecName = codecName; |
| this.codecType = codecType; |
| this.colorFormat = colorFormat; |
| this.sharedContext = sharedContext; |
| this.frameInfos = new LinkedBlockingDeque<>(); |
| } |
| |
| @Override |
| public VideoCodecStatus initDecode(Settings settings, Callback callback) { |
| this.decoderThreadChecker = new ThreadChecker(); |
| |
| this.callback = callback; |
| if (sharedContext != null) { |
| surfaceTextureHelper = createSurfaceTextureHelper(); |
| surface = new Surface(surfaceTextureHelper.getSurfaceTexture()); |
| surfaceTextureHelper.startListening(this); |
| } |
| return initDecodeInternal(settings.width, settings.height); |
| } |
| |
| // Internal variant is used when restarting the codec due to reconfiguration. |
| private VideoCodecStatus initDecodeInternal(int width, int height) { |
| decoderThreadChecker.checkIsOnValidThread(); |
| Logging.d(TAG, |
| "initDecodeInternal name: " + codecName + " type: " + codecType + " width: " + width |
| + " height: " + height); |
| if (outputThread != null) { |
| Logging.e(TAG, "initDecodeInternal called while the codec is already running"); |
| return VideoCodecStatus.FALLBACK_SOFTWARE; |
| } |
| |
| // Note: it is not necessary to initialize dimensions under the lock, since the output thread |
| // is not running. |
| this.width = width; |
| this.height = height; |
| |
| stride = width; |
| sliceHeight = height; |
| hasDecodedFirstFrame = false; |
| keyFrameRequired = true; |
| |
| try { |
| codec = mediaCodecWrapperFactory.createByCodecName(codecName); |
| } catch (IOException | IllegalArgumentException e) { |
| Logging.e(TAG, "Cannot create media decoder " + codecName); |
| return VideoCodecStatus.FALLBACK_SOFTWARE; |
| } |
| try { |
| MediaFormat format = MediaFormat.createVideoFormat(codecType.mimeType(), width, height); |
| if (sharedContext == null) { |
| format.setInteger(MediaFormat.KEY_COLOR_FORMAT, colorFormat); |
| } |
| codec.configure(format, surface, null, 0); |
| codec.start(); |
| } catch (IllegalStateException e) { |
| Logging.e(TAG, "initDecode failed", e); |
| release(); |
| return VideoCodecStatus.FALLBACK_SOFTWARE; |
| } |
| running = true; |
| outputThread = createOutputThread(); |
| outputThread.start(); |
| |
| Logging.d(TAG, "initDecodeInternal done"); |
| return VideoCodecStatus.OK; |
| } |
| |
| @Override |
| public VideoCodecStatus decode(EncodedImage frame, DecodeInfo info) { |
| decoderThreadChecker.checkIsOnValidThread(); |
| if (codec == null || callback == null) { |
| Logging.d(TAG, "decode uninitalized, codec: " + (codec != null) + ", callback: " + callback); |
| return VideoCodecStatus.UNINITIALIZED; |
| } |
| |
| if (frame.buffer == null) { |
| Logging.e(TAG, "decode() - no input data"); |
| return VideoCodecStatus.ERR_PARAMETER; |
| } |
| |
| int size = frame.buffer.remaining(); |
| if (size == 0) { |
| Logging.e(TAG, "decode() - input buffer empty"); |
| return VideoCodecStatus.ERR_PARAMETER; |
| } |
| |
| // Load dimensions from shared memory under the dimension lock. |
| final int width; |
| final int height; |
| synchronized (dimensionLock) { |
| width = this.width; |
| height = this.height; |
| } |
| |
| // Check if the resolution changed and reset the codec if necessary. |
| if (frame.encodedWidth * frame.encodedHeight > 0 |
| && (frame.encodedWidth != width || frame.encodedHeight != height)) { |
| VideoCodecStatus status = reinitDecode(frame.encodedWidth, frame.encodedHeight); |
| if (status != VideoCodecStatus.OK) { |
| return status; |
| } |
| } |
| |
| if (keyFrameRequired) { |
| // Need to process a key frame first. |
| if (frame.frameType != EncodedImage.FrameType.VideoFrameKey) { |
| Logging.e(TAG, "decode() - key frame required first"); |
| return VideoCodecStatus.NO_OUTPUT; |
| } |
| if (!frame.completeFrame) { |
| Logging.e(TAG, "decode() - complete frame required first"); |
| return VideoCodecStatus.NO_OUTPUT; |
| } |
| } |
| |
| int index; |
| try { |
| index = codec.dequeueInputBuffer(DEQUEUE_INPUT_TIMEOUT_US); |
| } catch (IllegalStateException e) { |
| Logging.e(TAG, "dequeueInputBuffer failed", e); |
| return VideoCodecStatus.ERROR; |
| } |
| if (index < 0) { |
| // Decoder is falling behind. No input buffers available. |
| // The decoder can't simply drop frames; it might lose a key frame. |
| Logging.e(TAG, "decode() - no HW buffers available; decoder falling behind"); |
| return VideoCodecStatus.ERROR; |
| } |
| |
| ByteBuffer buffer; |
| try { |
| buffer = codec.getInputBuffers()[index]; |
| } catch (IllegalStateException e) { |
| Logging.e(TAG, "getInputBuffers failed", e); |
| return VideoCodecStatus.ERROR; |
| } |
| |
| if (buffer.capacity() < size) { |
| Logging.e(TAG, "decode() - HW buffer too small"); |
| return VideoCodecStatus.ERROR; |
| } |
| buffer.put(frame.buffer); |
| |
| frameInfos.offer(new FrameInfo(SystemClock.elapsedRealtime(), frame.rotation)); |
| try { |
| codec.queueInputBuffer(index, 0 /* offset */, size, |
| TimeUnit.NANOSECONDS.toMicros(frame.captureTimeNs), 0 /* flags */); |
| } catch (IllegalStateException e) { |
| Logging.e(TAG, "queueInputBuffer failed", e); |
| frameInfos.pollLast(); |
| return VideoCodecStatus.ERROR; |
| } |
| if (keyFrameRequired) { |
| keyFrameRequired = false; |
| } |
| return VideoCodecStatus.OK; |
| } |
| |
| @Override |
| public boolean getPrefersLateDecoding() { |
| return true; |
| } |
| |
| @Override |
| public String getImplementationName() { |
| return codecName; |
| } |
| |
| @Override |
| public VideoCodecStatus release() { |
| // TODO(sakal): This is not called on the correct thread but is still called synchronously. |
| // Re-enable the check once this is called on the correct thread. |
| // decoderThreadChecker.checkIsOnValidThread(); |
| Logging.d(TAG, "release"); |
| VideoCodecStatus status = releaseInternal(); |
| if (surface != null) { |
| releaseSurface(); |
| surface = null; |
| surfaceTextureHelper.stopListening(); |
| surfaceTextureHelper.dispose(); |
| surfaceTextureHelper = null; |
| } |
| synchronized (renderedTextureMetadataLock) { |
| renderedTextureMetadata = null; |
| } |
| callback = null; |
| frameInfos.clear(); |
| return status; |
| } |
| |
| // Internal variant is used when restarting the codec due to reconfiguration. |
| private VideoCodecStatus releaseInternal() { |
| if (!running) { |
| Logging.d(TAG, "release: Decoder is not running."); |
| return VideoCodecStatus.OK; |
| } |
| try { |
| // The outputThread actually stops and releases the codec once running is false. |
| running = false; |
| if (!ThreadUtils.joinUninterruptibly(outputThread, MEDIA_CODEC_RELEASE_TIMEOUT_MS)) { |
| // Log an exception to capture the stack trace and turn it into a TIMEOUT error. |
| Logging.e(TAG, "Media decoder release timeout", new RuntimeException()); |
| return VideoCodecStatus.TIMEOUT; |
| } |
| if (shutdownException != null) { |
| // Log the exception and turn it into an error. Wrap the exception in a new exception to |
| // capture both the output thread's stack trace and this thread's stack trace. |
| Logging.e(TAG, "Media decoder release error", new RuntimeException(shutdownException)); |
| shutdownException = null; |
| return VideoCodecStatus.ERROR; |
| } |
| } finally { |
| codec = null; |
| outputThread = null; |
| } |
| return VideoCodecStatus.OK; |
| } |
| |
| private VideoCodecStatus reinitDecode(int newWidth, int newHeight) { |
| decoderThreadChecker.checkIsOnValidThread(); |
| VideoCodecStatus status = releaseInternal(); |
| if (status != VideoCodecStatus.OK) { |
| return status; |
| } |
| return initDecodeInternal(newWidth, newHeight); |
| } |
| |
| private Thread createOutputThread() { |
| return new Thread("AndroidVideoDecoder.outputThread") { |
| @Override |
| public void run() { |
| outputThreadChecker = new ThreadChecker(); |
| while (running) { |
| deliverDecodedFrame(); |
| } |
| releaseCodecOnOutputThread(); |
| } |
| }; |
| } |
| |
| // Visible for testing. |
| protected void deliverDecodedFrame() { |
| outputThreadChecker.checkIsOnValidThread(); |
| try { |
| MediaCodec.BufferInfo info = new MediaCodec.BufferInfo(); |
| // Block until an output buffer is available (up to 100 milliseconds). If the timeout is |
| // exceeded, deliverDecodedFrame() will be called again on the next iteration of the output |
| // thread's loop. Blocking here prevents the output thread from busy-waiting while the codec |
| // is idle. |
| int result = codec.dequeueOutputBuffer(info, DEQUEUE_OUTPUT_BUFFER_TIMEOUT_US); |
| if (result == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) { |
| reformat(codec.getOutputFormat()); |
| return; |
| } |
| |
| if (result < 0) { |
| Logging.v(TAG, "dequeueOutputBuffer returned " + result); |
| return; |
| } |
| |
| FrameInfo frameInfo = frameInfos.poll(); |
| Integer decodeTimeMs = null; |
| int rotation = 0; |
| if (frameInfo != null) { |
| decodeTimeMs = (int) (SystemClock.elapsedRealtime() - frameInfo.decodeStartTimeMs); |
| rotation = frameInfo.rotation; |
| } |
| |
| hasDecodedFirstFrame = true; |
| |
| if (surfaceTextureHelper != null) { |
| deliverTextureFrame(result, info, rotation, decodeTimeMs); |
| } else { |
| deliverByteFrame(result, info, rotation, decodeTimeMs); |
| } |
| |
| } catch (IllegalStateException e) { |
| Logging.e(TAG, "deliverDecodedFrame failed", e); |
| } |
| } |
| |
| private void deliverTextureFrame(final int index, final MediaCodec.BufferInfo info, |
| final int rotation, final Integer decodeTimeMs) { |
| // Load dimensions from shared memory under the dimension lock. |
| final int width; |
| final int height; |
| synchronized (dimensionLock) { |
| width = this.width; |
| height = this.height; |
| } |
| |
| synchronized (renderedTextureMetadataLock) { |
| if (renderedTextureMetadata != null) { |
| codec.releaseOutputBuffer(index, false); |
| return; // We are still waiting for texture for the previous frame, drop this one. |
| } |
| surfaceTextureHelper.setTextureSize(width, height); |
| surfaceTextureHelper.setFrameRotation(rotation); |
| renderedTextureMetadata = new DecodedTextureMetadata(info.presentationTimeUs, decodeTimeMs); |
| codec.releaseOutputBuffer(index, /* render= */ true); |
| } |
| } |
| |
| @Override |
| public void onFrame(VideoFrame frame) { |
| final VideoFrame newFrame; |
| final int decodeTimeMs; |
| final long timestampNs; |
| synchronized (renderedTextureMetadataLock) { |
| if (renderedTextureMetadata == null) { |
| throw new IllegalStateException( |
| "Rendered texture metadata was null in onTextureFrameAvailable."); |
| } |
| timestampNs = renderedTextureMetadata.presentationTimestampUs * 1000; |
| decodeTimeMs = renderedTextureMetadata.decodeTimeMs; |
| renderedTextureMetadata = null; |
| } |
| // Change timestamp of frame. |
| final VideoFrame frameWithModifiedTimeStamp = |
| new VideoFrame(frame.getBuffer(), frame.getRotation(), timestampNs); |
| callback.onDecodedFrame(frameWithModifiedTimeStamp, decodeTimeMs, null /* qp */); |
| } |
| |
| private void deliverByteFrame( |
| int result, MediaCodec.BufferInfo info, int rotation, Integer decodeTimeMs) { |
| // Load dimensions from shared memory under the dimension lock. |
| int width, height, stride, sliceHeight; |
| synchronized (dimensionLock) { |
| width = this.width; |
| height = this.height; |
| stride = this.stride; |
| sliceHeight = this.sliceHeight; |
| } |
| |
| // Output must be at least width * height bytes for Y channel, plus (width / 2) * (height / 2) |
| // bytes for each of the U and V channels. |
| if (info.size < width * height * 3 / 2) { |
| Logging.e(TAG, "Insufficient output buffer size: " + info.size); |
| return; |
| } |
| |
| if (info.size < stride * height * 3 / 2 && sliceHeight == height && stride > width) { |
| // Some codecs (Exynos) report an incorrect stride. Correct it here. |
| // Expected size == stride * height * 3 / 2. A bit of algebra gives the correct stride as |
| // 2 * size / (3 * height). |
| stride = info.size * 2 / (height * 3); |
| } |
| |
| ByteBuffer buffer = codec.getOutputBuffers()[result]; |
| buffer.position(info.offset); |
| buffer.limit(info.offset + info.size); |
| buffer = buffer.slice(); |
| |
| final VideoFrame.Buffer frameBuffer; |
| if (colorFormat == CodecCapabilities.COLOR_FormatYUV420Planar) { |
| frameBuffer = copyI420Buffer(buffer, stride, sliceHeight, width, height); |
| } else { |
| // All other supported color formats are NV12. |
| frameBuffer = copyNV12ToI420Buffer(buffer, stride, sliceHeight, width, height); |
| } |
| codec.releaseOutputBuffer(result, /* render= */ false); |
| |
| long presentationTimeNs = info.presentationTimeUs * 1000; |
| VideoFrame frame = new VideoFrame(frameBuffer, rotation, presentationTimeNs); |
| |
| // Note that qp is parsed on the C++ side. |
| callback.onDecodedFrame(frame, decodeTimeMs, null /* qp */); |
| frame.release(); |
| } |
| |
| private VideoFrame.Buffer copyNV12ToI420Buffer( |
| ByteBuffer buffer, int stride, int sliceHeight, int width, int height) { |
| // toI420 copies the buffer. |
| return new NV12Buffer(width, height, stride, sliceHeight, buffer, null /* releaseCallback */) |
| .toI420(); |
| } |
| |
| private VideoFrame.Buffer copyI420Buffer( |
| ByteBuffer buffer, int stride, int sliceHeight, int width, int height) { |
| if (stride % 2 != 0) { |
| throw new AssertionError("Stride is not divisible by two: " + stride); |
| } |
| |
| // Note that the case with odd |sliceHeight| is handled in a special way. |
| // The chroma height contained in the payload is rounded down instead of |
| // up, making it one row less than what we expect in WebRTC. Therefore, we |
| // have to duplicate the last chroma rows for this case. Also, the offset |
| // between the Y plane and the U plane is unintuitive for this case. See |
| // http://bugs.webrtc.org/6651 for more info. |
| final int chromaWidth = (width + 1) / 2; |
| final int chromaHeight = (sliceHeight % 2 == 0) ? (height + 1) / 2 : height / 2; |
| |
| final int uvStride = stride / 2; |
| |
| final int yPos = 0; |
| final int yEnd = yPos + stride * height; |
| final int uPos = yPos + stride * sliceHeight; |
| final int uEnd = uPos + uvStride * chromaHeight; |
| final int vPos = uPos + uvStride * sliceHeight / 2; |
| final int vEnd = vPos + uvStride * chromaHeight; |
| |
| VideoFrame.I420Buffer frameBuffer = allocateI420Buffer(width, height); |
| |
| buffer.limit(yEnd); |
| buffer.position(yPos); |
| copyPlane( |
| buffer.slice(), stride, frameBuffer.getDataY(), frameBuffer.getStrideY(), width, height); |
| |
| buffer.limit(uEnd); |
| buffer.position(uPos); |
| copyPlane(buffer.slice(), uvStride, frameBuffer.getDataU(), frameBuffer.getStrideU(), |
| chromaWidth, chromaHeight); |
| if (sliceHeight % 2 == 1) { |
| buffer.position(uPos + uvStride * (chromaHeight - 1)); // Seek to beginning of last full row. |
| |
| ByteBuffer dataU = frameBuffer.getDataU(); |
| dataU.position(frameBuffer.getStrideU() * chromaHeight); // Seek to beginning of last row. |
| dataU.put(buffer); // Copy the last row. |
| } |
| |
| buffer.limit(vEnd); |
| buffer.position(vPos); |
| copyPlane(buffer.slice(), uvStride, frameBuffer.getDataV(), frameBuffer.getStrideV(), |
| chromaWidth, chromaHeight); |
| if (sliceHeight % 2 == 1) { |
| buffer.position(vPos + uvStride * (chromaHeight - 1)); // Seek to beginning of last full row. |
| |
| ByteBuffer dataV = frameBuffer.getDataV(); |
| dataV.position(frameBuffer.getStrideV() * chromaHeight); // Seek to beginning of last row. |
| dataV.put(buffer); // Copy the last row. |
| } |
| |
| return frameBuffer; |
| } |
| |
| private void reformat(MediaFormat format) { |
| outputThreadChecker.checkIsOnValidThread(); |
| Logging.d(TAG, "Decoder format changed: " + format.toString()); |
| final int newWidth; |
| final int newHeight; |
| if (format.containsKey(MEDIA_FORMAT_KEY_CROP_LEFT) |
| && format.containsKey(MEDIA_FORMAT_KEY_CROP_RIGHT) |
| && format.containsKey(MEDIA_FORMAT_KEY_CROP_BOTTOM) |
| && format.containsKey(MEDIA_FORMAT_KEY_CROP_TOP)) { |
| newWidth = 1 + format.getInteger(MEDIA_FORMAT_KEY_CROP_RIGHT) |
| - format.getInteger(MEDIA_FORMAT_KEY_CROP_LEFT); |
| newHeight = 1 + format.getInteger(MEDIA_FORMAT_KEY_CROP_BOTTOM) |
| - format.getInteger(MEDIA_FORMAT_KEY_CROP_TOP); |
| } else { |
| newWidth = format.getInteger(MediaFormat.KEY_WIDTH); |
| newHeight = format.getInteger(MediaFormat.KEY_HEIGHT); |
| } |
| // Compare to existing width, height, and save values under the dimension lock. |
| synchronized (dimensionLock) { |
| if (hasDecodedFirstFrame && (width != newWidth || height != newHeight)) { |
| stopOnOutputThread(new RuntimeException("Unexpected size change. Configured " + width + "*" |
| + height + ". New " + newWidth + "*" + newHeight)); |
| return; |
| } |
| width = newWidth; |
| height = newHeight; |
| } |
| |
| // Note: texture mode ignores colorFormat. Hence, if the texture helper is non-null, skip |
| // color format updates. |
| if (surfaceTextureHelper == null && format.containsKey(MediaFormat.KEY_COLOR_FORMAT)) { |
| colorFormat = format.getInteger(MediaFormat.KEY_COLOR_FORMAT); |
| Logging.d(TAG, "Color: 0x" + Integer.toHexString(colorFormat)); |
| if (!isSupportedColorFormat(colorFormat)) { |
| stopOnOutputThread(new IllegalStateException("Unsupported color format: " + colorFormat)); |
| return; |
| } |
| } |
| |
| // Save stride and sliceHeight under the dimension lock. |
| synchronized (dimensionLock) { |
| if (format.containsKey(MEDIA_FORMAT_KEY_STRIDE)) { |
| stride = format.getInteger(MEDIA_FORMAT_KEY_STRIDE); |
| } |
| if (format.containsKey(MEDIA_FORMAT_KEY_SLICE_HEIGHT)) { |
| sliceHeight = format.getInteger(MEDIA_FORMAT_KEY_SLICE_HEIGHT); |
| } |
| Logging.d(TAG, "Frame stride and slice height: " + stride + " x " + sliceHeight); |
| stride = Math.max(width, stride); |
| sliceHeight = Math.max(height, sliceHeight); |
| } |
| } |
| |
| private void releaseCodecOnOutputThread() { |
| outputThreadChecker.checkIsOnValidThread(); |
| Logging.d(TAG, "Releasing MediaCodec on output thread"); |
| try { |
| codec.stop(); |
| } catch (Exception e) { |
| Logging.e(TAG, "Media decoder stop failed", e); |
| } |
| try { |
| codec.release(); |
| } catch (Exception e) { |
| Logging.e(TAG, "Media decoder release failed", e); |
| // Propagate exceptions caught during release back to the main thread. |
| shutdownException = e; |
| } |
| Logging.d(TAG, "Release on output thread done"); |
| } |
| |
| private void stopOnOutputThread(Exception e) { |
| outputThreadChecker.checkIsOnValidThread(); |
| running = false; |
| shutdownException = e; |
| } |
| |
| private boolean isSupportedColorFormat(int colorFormat) { |
| for (int supported : MediaCodecUtils.DECODER_COLOR_FORMATS) { |
| if (supported == colorFormat) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| // Visible for testing. |
| protected SurfaceTextureHelper createSurfaceTextureHelper() { |
| return SurfaceTextureHelper.create("decoder-texture-thread", sharedContext); |
| } |
| |
| // Visible for testing. |
| // TODO(sakal): Remove once Robolectric commit fa991a0 has been rolled to WebRTC. |
| protected void releaseSurface() { |
| surface.release(); |
| } |
| |
| // Visible for testing. |
| protected VideoFrame.I420Buffer allocateI420Buffer(int width, int height) { |
| return JavaI420Buffer.allocate(width, height); |
| } |
| |
| // Visible for testing. |
| protected void copyPlane( |
| ByteBuffer src, int srcStride, ByteBuffer dst, int dstStride, int width, int height) { |
| YuvHelper.copyPlane(src, srcStride, dst, dstStride, width, height); |
| } |
| } |
