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Diffstat (limited to 'chromium/media/base/android/java/src/org/chromium/media/WebAudioMediaCodecBridge.java')
-rw-r--r--chromium/media/base/android/java/src/org/chromium/media/WebAudioMediaCodecBridge.java186
1 files changed, 0 insertions, 186 deletions
diff --git a/chromium/media/base/android/java/src/org/chromium/media/WebAudioMediaCodecBridge.java b/chromium/media/base/android/java/src/org/chromium/media/WebAudioMediaCodecBridge.java
deleted file mode 100644
index 1de7e42b8d2..00000000000
--- a/chromium/media/base/android/java/src/org/chromium/media/WebAudioMediaCodecBridge.java
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.media;
-
-import android.content.Context;
-import android.media.AudioFormat;
-import android.media.MediaCodec;
-import android.media.MediaCodec.BufferInfo;
-import android.media.MediaExtractor;
-import android.media.MediaFormat;
-import android.os.ParcelFileDescriptor;
-import android.util.Log;
-
-import java.io.File;
-import java.nio.ByteBuffer;
-
-import org.chromium.base.CalledByNative;
-import org.chromium.base.JNINamespace;
-
-@JNINamespace("media")
-class WebAudioMediaCodecBridge {
- private static final boolean DEBUG = true;
- static final String LOG_TAG = "WebAudioMediaCodec";
- // TODO(rtoy): What is the correct timeout value for reading
- // from a file in memory?
- static final long TIMEOUT_MICROSECONDS = 500;
- @CalledByNative
- private static String CreateTempFile(Context ctx) throws java.io.IOException {
- File outputDirectory = ctx.getCacheDir();
- File outputFile = File.createTempFile("webaudio", ".dat", outputDirectory);
- return outputFile.getAbsolutePath();
- }
-
- @CalledByNative
- private static boolean decodeAudioFile(Context ctx,
- int nativeMediaCodecBridge,
- int inputFD,
- long dataSize) {
-
- if (dataSize < 0 || dataSize > 0x7fffffff)
- return false;
-
- MediaExtractor extractor = new MediaExtractor();
-
- ParcelFileDescriptor encodedFD;
- encodedFD = ParcelFileDescriptor.adoptFd(inputFD);
- try {
- extractor.setDataSource(encodedFD.getFileDescriptor(), 0, dataSize);
- } catch (Exception e) {
- e.printStackTrace();
- encodedFD.detachFd();
- return false;
- }
-
- if (extractor.getTrackCount() <= 0) {
- encodedFD.detachFd();
- return false;
- }
-
- MediaFormat format = extractor.getTrackFormat(0);
-
- // Number of channels specified in the file
- int inputChannelCount = format.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
-
- // Number of channels the decoder will provide. (Not
- // necessarily the same as inputChannelCount. See
- // crbug.com/266006.)
- int outputChannelCount = inputChannelCount;
-
- int sampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE);
- String mime = format.getString(MediaFormat.KEY_MIME);
-
- long durationMicroseconds = 0;
- if (format.containsKey(MediaFormat.KEY_DURATION)) {
- try {
- durationMicroseconds = format.getLong(MediaFormat.KEY_DURATION);
- } catch (Exception e) {
- Log.d(LOG_TAG, "Cannot get duration");
- }
- }
-
- if (DEBUG) {
- Log.d(LOG_TAG, "Tracks: " + extractor.getTrackCount()
- + " Rate: " + sampleRate
- + " Channels: " + inputChannelCount
- + " Mime: " + mime
- + " Duration: " + durationMicroseconds + " microsec");
- }
-
- nativeInitializeDestination(nativeMediaCodecBridge,
- inputChannelCount,
- sampleRate,
- durationMicroseconds);
-
- // Create decoder
- MediaCodec codec = MediaCodec.createDecoderByType(mime);
- codec.configure(format, null /* surface */, null /* crypto */, 0 /* flags */);
- codec.start();
-
- ByteBuffer[] codecInputBuffers = codec.getInputBuffers();
- ByteBuffer[] codecOutputBuffers = codec.getOutputBuffers();
-
- // A track must be selected and will be used to read samples.
- extractor.selectTrack(0);
-
- boolean sawInputEOS = false;
- boolean sawOutputEOS = false;
-
- // Keep processing until the output is done.
- while (!sawOutputEOS) {
- if (!sawInputEOS) {
- // Input side
- int inputBufIndex = codec.dequeueInputBuffer(TIMEOUT_MICROSECONDS);
-
- if (inputBufIndex >= 0) {
- ByteBuffer dstBuf = codecInputBuffers[inputBufIndex];
- int sampleSize = extractor.readSampleData(dstBuf, 0);
- long presentationTimeMicroSec = 0;
-
- if (sampleSize < 0) {
- sawInputEOS = true;
- sampleSize = 0;
- } else {
- presentationTimeMicroSec = extractor.getSampleTime();
- }
-
- codec.queueInputBuffer(inputBufIndex,
- 0, /* offset */
- sampleSize,
- presentationTimeMicroSec,
- sawInputEOS ? MediaCodec.BUFFER_FLAG_END_OF_STREAM : 0);
-
- if (!sawInputEOS) {
- extractor.advance();
- }
- }
- }
-
- // Output side
- MediaCodec.BufferInfo info = new BufferInfo();
- final int outputBufIndex = codec.dequeueOutputBuffer(info, TIMEOUT_MICROSECONDS);
-
- if (outputBufIndex >= 0) {
- ByteBuffer buf = codecOutputBuffers[outputBufIndex];
-
- if (info.size > 0) {
- nativeOnChunkDecoded(nativeMediaCodecBridge, buf, info.size,
- inputChannelCount, outputChannelCount);
- }
-
- buf.clear();
- codec.releaseOutputBuffer(outputBufIndex, false /* render */);
-
- if ((info.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
- sawOutputEOS = true;
- }
- } else if (outputBufIndex == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
- codecOutputBuffers = codec.getOutputBuffers();
- } else if (outputBufIndex == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
- MediaFormat newFormat = codec.getOutputFormat();
- outputChannelCount = newFormat.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
- Log.d(LOG_TAG, "output format changed to " + newFormat);
- }
- }
-
- encodedFD.detachFd();
-
- codec.stop();
- codec.release();
- codec = null;
-
- return true;
- }
-
- private static native void nativeOnChunkDecoded(
- int nativeWebAudioMediaCodecBridge, ByteBuffer buf, int size,
- int inputChannelCount, int outputChannelCount);
-
- private static native void nativeInitializeDestination(
- int nativeWebAudioMediaCodecBridge,
- int inputChannelCount,
- int sampleRate,
- long durationMicroseconds);
-}
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