1 files changed, 0 insertions, 227 deletions
diff --git a/tree/extensions/ffmpeg/src/main/java/com/google/android/exoplayer2/ext/ffmpeg/FfmpegAudioDecoder.java b/tree/extensions/ffmpeg/src/main/java/com/google/android/exoplayer2/ext/ffmpeg/FfmpegAudioDecoder.java
deleted file mode 100644
index c5072a33..00000000
--- a/tree/extensions/ffmpeg/src/main/java/com/google/android/exoplayer2/ext/ffmpeg/FfmpegAudioDecoder.java
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.google.android.exoplayer2.ext.ffmpeg;
-
-import androidx.annotation.Nullable;
-import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.Format;
-import com.google.android.exoplayer2.decoder.DecoderInputBuffer;
-import com.google.android.exoplayer2.decoder.SimpleDecoder;
-import com.google.android.exoplayer2.decoder.SimpleOutputBuffer;
-import com.google.android.exoplayer2.util.Assertions;
-import com.google.android.exoplayer2.util.MimeTypes;
-import com.google.android.exoplayer2.util.ParsableByteArray;
-import com.google.android.exoplayer2.util.Util;
-import java.nio.ByteBuffer;
-import java.util.List;
-
-/** FFmpeg audio decoder. */
-/* package */ final class FfmpegAudioDecoder
-    extends SimpleDecoder<DecoderInputBuffer, SimpleOutputBuffer, FfmpegDecoderException> {
-
-  // Output buffer sizes when decoding PCM mu-law streams, which is the maximum FFmpeg outputs.
-  private static final int OUTPUT_BUFFER_SIZE_16BIT = 65536;
-  private static final int OUTPUT_BUFFER_SIZE_32BIT = OUTPUT_BUFFER_SIZE_16BIT * 2;
-
-  // LINT.IfChange
-  private static final int AUDIO_DECODER_ERROR_INVALID_DATA = -1;
-  private static final int AUDIO_DECODER_ERROR_OTHER = -2;
-  // LINT.ThenChange(../../../../../../../jni/ffmpeg_jni.cc)
-
-  private final String codecName;
-  @Nullable private final byte[] extraData;
-  private final @C.Encoding int encoding;
-  private final int outputBufferSize;
-
-  private long nativeContext; // May be reassigned on resetting the codec.
-  private boolean hasOutputFormat;
-  private volatile int channelCount;
-  private volatile int sampleRate;
-
-  public FfmpegAudioDecoder(
-      int numInputBuffers,
-      int numOutputBuffers,
-      int initialInputBufferSize,
-      Format format,
-      boolean outputFloat)
-      throws FfmpegDecoderException {
-    super(new DecoderInputBuffer[numInputBuffers], new SimpleOutputBuffer[numOutputBuffers]);
-    if (!FfmpegLibrary.isAvailable()) {
-      throw new FfmpegDecoderException("Failed to load decoder native libraries.");
-    }
-    Assertions.checkNotNull(format.sampleMimeType);
-    codecName = Assertions.checkNotNull(FfmpegLibrary.getCodecName(format.sampleMimeType));
-    extraData = getExtraData(format.sampleMimeType, format.initializationData);
-    encoding = outputFloat ? C.ENCODING_PCM_FLOAT : C.ENCODING_PCM_16BIT;
-    outputBufferSize = outputFloat ? OUTPUT_BUFFER_SIZE_32BIT : OUTPUT_BUFFER_SIZE_16BIT;
-    nativeContext =
-        ffmpegInitialize(codecName, extraData, outputFloat, format.sampleRate, format.channelCount);
-    if (nativeContext == 0) {
-      throw new FfmpegDecoderException("Initialization failed.");
-    }
-    setInitialInputBufferSize(initialInputBufferSize);
-  }
-
-  @Override
-  public String getName() {
-    return "ffmpeg" + FfmpegLibrary.getVersion() + "-" + codecName;
-  }
-
-  @Override
-  protected DecoderInputBuffer createInputBuffer() {
-    return new DecoderInputBuffer(DecoderInputBuffer.BUFFER_REPLACEMENT_MODE_DIRECT);
-  }
-
-  @Override
-  protected SimpleOutputBuffer createOutputBuffer() {
-    return new SimpleOutputBuffer(this::releaseOutputBuffer);
-  }
-
-  @Override
-  protected FfmpegDecoderException createUnexpectedDecodeException(Throwable error) {
-    return new FfmpegDecoderException("Unexpected decode error", error);
-  }
-
-  @Override
-  protected @Nullable FfmpegDecoderException decode(
-      DecoderInputBuffer inputBuffer, SimpleOutputBuffer outputBuffer, boolean reset) {
-    if (reset) {
-      nativeContext = ffmpegReset(nativeContext, extraData);
-      if (nativeContext == 0) {
-        return new FfmpegDecoderException("Error resetting (see logcat).");
-      }
-    }
-    ByteBuffer inputData = Util.castNonNull(inputBuffer.data);
-    int inputSize = inputData.limit();
-    ByteBuffer outputData = outputBuffer.init(inputBuffer.timeUs, outputBufferSize);
-    int result = ffmpegDecode(nativeContext, inputData, inputSize, outputData, outputBufferSize);
-    if (result == AUDIO_DECODER_ERROR_INVALID_DATA) {
-      // Treat invalid data errors as non-fatal to match the behavior of MediaCodec. No output will
-      // be produced for this buffer, so mark it as decode-only to ensure that the audio sink's
-      // position is reset when more audio is produced.
-      outputBuffer.setFlags(C.BUFFER_FLAG_DECODE_ONLY);
-      return null;
-    } else if (result == AUDIO_DECODER_ERROR_OTHER) {
-      return new FfmpegDecoderException("Error decoding (see logcat).");
-    }
-    if (!hasOutputFormat) {
-      channelCount = ffmpegGetChannelCount(nativeContext);
-      sampleRate = ffmpegGetSampleRate(nativeContext);
-      if (sampleRate == 0 && "alac".equals(codecName)) {
-        Assertions.checkNotNull(extraData);
-        // ALAC decoder did not set the sample rate in earlier versions of FFmpeg. See
-        // https://trac.ffmpeg.org/ticket/6096.
-        ParsableByteArray parsableExtraData = new ParsableByteArray(extraData);
-        parsableExtraData.setPosition(extraData.length - 4);
-        sampleRate = parsableExtraData.readUnsignedIntToInt();
-      }
-      hasOutputFormat = true;
-    }
-    outputData.position(0);
-    outputData.limit(result);
-    return null;
-  }
-
-  @Override
-  public void release() {
-    super.release();
-    ffmpegRelease(nativeContext);
-    nativeContext = 0;
-  }
-
-  /** Returns the channel count of output audio. */
-  public int getChannelCount() {
-    return channelCount;
-  }
-
-  /** Returns the sample rate of output audio. */
-  public int getSampleRate() {
-    return sampleRate;
-  }
-
-  /** Returns the encoding of output audio. */
-  public @C.Encoding int getEncoding() {
-    return encoding;
-  }
-
-  /**
-   * Returns FFmpeg-compatible codec-specific initialization data ("extra data"), or {@code null} if
-   * not required.
-   */
-  private static @Nullable byte[] getExtraData(String mimeType, List<byte[]> initializationData) {
-    switch (mimeType) {
-      case MimeTypes.AUDIO_AAC:
-      case MimeTypes.AUDIO_OPUS:
-        return initializationData.get(0);
-      case MimeTypes.AUDIO_ALAC:
-        return getAlacExtraData(initializationData);
-      case MimeTypes.AUDIO_VORBIS:
-        return getVorbisExtraData(initializationData);
-      default:
-        // Other codecs do not require extra data.
-        return null;
-    }
-  }
-
-  private static byte[] getAlacExtraData(List<byte[]> initializationData) {
-    // FFmpeg's ALAC decoder expects an ALAC atom, which contains the ALAC "magic cookie", as extra
-    // data. initializationData[0] contains only the magic cookie, and so we need to package it into
-    // an ALAC atom. See:
-    // https://ffmpeg.org/doxygen/0.6/alac_8c.html
-    // https://github.com/macosforge/alac/blob/master/ALACMagicCookieDescription.txt
-    byte[] magicCookie = initializationData.get(0);
-    int alacAtomLength = 12 + magicCookie.length;
-    ByteBuffer alacAtom = ByteBuffer.allocate(alacAtomLength);
-    alacAtom.putInt(alacAtomLength);
-    alacAtom.putInt(0x616c6163); // type=alac
-    alacAtom.putInt(0); // version=0, flags=0
-    alacAtom.put(magicCookie, /* offset= */ 0, magicCookie.length);
-    return alacAtom.array();
-  }
-
-  private static byte[] getVorbisExtraData(List<byte[]> initializationData) {
-    byte[] header0 = initializationData.get(0);
-    byte[] header1 = initializationData.get(1);
-    byte[] extraData = new byte[header0.length + header1.length + 6];
-    extraData[0] = (byte) (header0.length >> 8);
-    extraData[1] = (byte) (header0.length & 0xFF);
-    System.arraycopy(header0, 0, extraData, 2, header0.length);
-    extraData[header0.length + 2] = 0;
-    extraData[header0.length + 3] = 0;
-    extraData[header0.length + 4] = (byte) (header1.length >> 8);
-    extraData[header0.length + 5] = (byte) (header1.length & 0xFF);
-    System.arraycopy(header1, 0, extraData, header0.length + 6, header1.length);
-    return extraData;
-  }
-
-  private native long ffmpegInitialize(
-      String codecName,
-      @Nullable byte[] extraData,
-      boolean outputFloat,
-      int rawSampleRate,
-      int rawChannelCount);
-
-  private native int ffmpegDecode(
-      long context, ByteBuffer inputData, int inputSize, ByteBuffer outputData, int outputSize);
-
-  private native int ffmpegGetChannelCount(long context);
-
-  private native int ffmpegGetSampleRate(long context);
-
-  private native long ffmpegReset(long context, @Nullable byte[] extraData);
-
-  private native void ffmpegRelease(long context);
-}