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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.media;
import android.media.MediaCodec;
import android.media.MediaCodec.BufferInfo;
import android.media.MediaCodec.CryptoInfo;
import android.os.Build;
import android.util.Log;
import java.nio.ByteBuffer;
import java.util.List;
import org.mozilla.geckoview.BuildConfig;
import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
import org.mozilla.thirdparty.com.google.android.exoplayer2.ExoPlaybackException;
import org.mozilla.thirdparty.com.google.android.exoplayer2.Format;
import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererCapabilities;
import org.mozilla.thirdparty.com.google.android.exoplayer2.decoder.DecoderInputBuffer;
import org.mozilla.thirdparty.com.google.android.exoplayer2.mediacodec.MediaCodecInfo;
import org.mozilla.thirdparty.com.google.android.exoplayer2.mediacodec.MediaCodecSelector;
import org.mozilla.thirdparty.com.google.android.exoplayer2.mediacodec.MediaCodecUtil;
import org.mozilla.thirdparty.com.google.android.exoplayer2.util.MimeTypes;
public class GeckoHlsAudioRenderer extends GeckoHlsRendererBase {
public GeckoHlsAudioRenderer(final GeckoHlsPlayer.ComponentEventDispatcher eventDispatcher) {
super(C.TRACK_TYPE_AUDIO, eventDispatcher);
assertTrue(Build.VERSION.SDK_INT >= 16);
LOGTAG = getClass().getSimpleName();
DEBUG = !BuildConfig.MOZILLA_OFFICIAL;
}
@Override
public final int supportsFormat(final Format format) {
/*
* FORMAT_EXCEEDS_CAPABILITIES : The Renderer is capable of rendering
* formats with the same mime type, but
* the properties of the format exceed
* the renderer's capability.
* FORMAT_UNSUPPORTED_SUBTYPE : The Renderer is a general purpose
* renderer for formats of the same
* top-level type, but is not capable of
* rendering the format or any other format
* with the same mime type because the
* sub-type is not supported.
* FORMAT_UNSUPPORTED_TYPE : The Renderer is not capable of rendering
* the format, either because it does not support
* the format's top-level type, or because it's
* a specialized renderer for a different mime type.
* ADAPTIVE_NOT_SEAMLESS : The Renderer can adapt between formats,
* but may suffer a brief discontinuity (~50-100ms)
* when adaptation occurs.
*/
final String mimeType = format.sampleMimeType;
if (!MimeTypes.isAudio(mimeType)) {
return RendererCapabilities.create(FORMAT_UNSUPPORTED_TYPE);
}
List<MediaCodecInfo> decoderInfos = null;
try {
final MediaCodecSelector mediaCodecSelector = MediaCodecSelector.DEFAULT;
decoderInfos = mediaCodecSelector.getDecoderInfos(mimeType, false, false);
} catch (final MediaCodecUtil.DecoderQueryException e) {
Log.e(LOGTAG, e.getMessage());
}
if (decoderInfos == null || decoderInfos.isEmpty()) {
return RendererCapabilities.create(FORMAT_UNSUPPORTED_SUBTYPE);
}
final MediaCodecInfo info = decoderInfos.get(0);
/*
* Note : If the code can make it to this place, ExoPlayer assumes
* support for unknown sampleRate and channelCount when
* SDK version is less than 21, otherwise, further check is needed
* if there's no sampleRate/channelCount in format.
*/
final boolean decoderCapable =
(Build.VERSION.SDK_INT < 21)
|| ((format.sampleRate == Format.NO_VALUE
|| info.isAudioSampleRateSupportedV21(format.sampleRate))
&& (format.channelCount == Format.NO_VALUE
|| info.isAudioChannelCountSupportedV21(format.channelCount)));
return RendererCapabilities.create(
decoderCapable ? FORMAT_HANDLED : FORMAT_EXCEEDS_CAPABILITIES,
ADAPTIVE_NOT_SEAMLESS,
TUNNELING_NOT_SUPPORTED);
}
@Override
protected final void createInputBuffer() {
// We're not able to estimate the size for audio from format. So we rely
// on the dynamic allocation mechanism provided in DecoderInputBuffer.
mInputBuffer = null;
}
@Override
protected void resetRenderer() {
mInputBuffer = null;
mInitialized = false;
}
@Override
protected void handleReconfiguration(final DecoderInputBuffer bufferForRead) {
// Do nothing
}
@Override
protected void handleFormatRead(final DecoderInputBuffer bufferForRead)
throws ExoPlaybackException {
onInputFormatChanged(mFormatHolder.format);
}
@Override
protected void handleEndOfStream(final DecoderInputBuffer bufferForRead) {
mInputStreamEnded = true;
mDemuxedInputSamples.offer(GeckoHLSSample.EOS);
}
@Override
protected void handleSamplePreparation(final DecoderInputBuffer bufferForRead) {
final int size = bufferForRead.data.limit();
final byte[] realData = new byte[size];
bufferForRead.data.get(realData, 0, size);
final ByteBuffer buffer = ByteBuffer.wrap(realData);
mInputBuffer = bufferForRead.data;
mInputBuffer.clear();
final CryptoInfo cryptoInfo =
bufferForRead.isEncrypted() ? bufferForRead.cryptoInfo.getFrameworkCryptoInfoV16() : null;
final BufferInfo bufferInfo = new BufferInfo();
// Flags in DecoderInputBuffer are synced with MediaCodec Buffer flags.
int flags = 0;
flags |= bufferForRead.isKeyFrame() ? MediaCodec.BUFFER_FLAG_KEY_FRAME : 0;
flags |= bufferForRead.isEndOfStream() ? MediaCodec.BUFFER_FLAG_END_OF_STREAM : 0;
bufferInfo.set(0, size, bufferForRead.timeUs, flags);
assertTrue(mFormats.size() >= 0);
// We add a new format in the list once format changes, so the formatIndex
// should indicate to the last(latest) format.
final GeckoHLSSample sample =
GeckoHLSSample.create(buffer, bufferInfo, cryptoInfo, mFormats.size() - 1);
mDemuxedInputSamples.offer(sample);
if (BuildConfig.DEBUG_BUILD) {
Log.d(
LOGTAG,
"Demuxed sample PTS : "
+ sample.info.presentationTimeUs
+ ", duration :"
+ sample.duration
+ ", formatIndex("
+ sample.formatIndex
+ "), queue size : "
+ mDemuxedInputSamples.size());
}
}
@Override
protected boolean clearInputSamplesQueue() {
if (DEBUG) {
Log.d(LOGTAG, "clearInputSamplesQueue");
}
mDemuxedInputSamples.clear();
return true;
}
@Override
protected void notifyPlayerInputFormatChanged(final Format newFormat) {
mPlayerEventDispatcher.onAudioInputFormatChanged(newFormat);
}
}
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