/*
* Copyright (C) 2014 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 tv.danmaku.ijk.media.exo.demo.player;
import com.google.android.exoplayer.DefaultLoadControl;
import com.google.android.exoplayer.LoadControl;
import com.google.android.exoplayer.MediaCodecAudioTrackRenderer;
import com.google.android.exoplayer.MediaCodecSelector;
import com.google.android.exoplayer.MediaCodecVideoTrackRenderer;
import com.google.android.exoplayer.TrackRenderer;
import com.google.android.exoplayer.audio.AudioCapabilities;
import com.google.android.exoplayer.chunk.ChunkSampleSource;
import com.google.android.exoplayer.chunk.ChunkSource;
import com.google.android.exoplayer.chunk.FormatEvaluator.AdaptiveEvaluator;
import com.google.android.exoplayer.dash.DashChunkSource;
import com.google.android.exoplayer.dash.DefaultDashTrackSelector;
import com.google.android.exoplayer.dash.mpd.AdaptationSet;
import com.google.android.exoplayer.dash.mpd.MediaPresentationDescription;
import com.google.android.exoplayer.dash.mpd.MediaPresentationDescriptionParser;
import com.google.android.exoplayer.dash.mpd.Period;
import com.google.android.exoplayer.dash.mpd.UtcTimingElement;
import com.google.android.exoplayer.dash.mpd.UtcTimingElementResolver;
import com.google.android.exoplayer.dash.mpd.UtcTimingElementResolver.UtcTimingCallback;
import tv.danmaku.ijk.media.exo.demo.player.DemoPlayer.RendererBuilder;
import com.google.android.exoplayer.drm.MediaDrmCallback;
import com.google.android.exoplayer.drm.StreamingDrmSessionManager;
import com.google.android.exoplayer.drm.UnsupportedDrmException;
import com.google.android.exoplayer.text.TextTrackRenderer;
import com.google.android.exoplayer.upstream.DataSource;
import com.google.android.exoplayer.upstream.DefaultAllocator;
import com.google.android.exoplayer.upstream.DefaultBandwidthMeter;
import com.google.android.exoplayer.upstream.DefaultUriDataSource;
import com.google.android.exoplayer.upstream.UriDataSource;
import com.google.android.exoplayer.util.ManifestFetcher;
import com.google.android.exoplayer.util.Util;
import android.content.Context;
import android.media.AudioManager;
import android.media.MediaCodec;
import android.os.Handler;
import android.util.Log;
import java.io.IOException;
/**
* A {link RendererBuilder} for DASH.
*/
public class DashRendererBuilder implements RendererBuilder {
private static final String TAG = "DashRendererBuilder";
private static final int BUFFER_SEGMENT_SIZE = 64 * 1024;
private static final int VIDEO_BUFFER_SEGMENTS = 200;
private static final int AUDIO_BUFFER_SEGMENTS = 54;
private static final int TEXT_BUFFER_SEGMENTS = 2;
private static final int LIVE_EDGE_LATENCY_MS = 30000;
private static final int SECURITY_LEVEL_UNKNOWN = -1;
private static final int SECURITY_LEVEL_1 = 1;
private static final int SECURITY_LEVEL_3 = 3;
private final Context context;
private final String userAgent;
private final String url;
private final MediaDrmCallback drmCallback;
private AsyncRendererBuilder currentAsyncBuilder;
public DashRendererBuilder(Context context, String userAgent, String url,
MediaDrmCallback drmCallback) {
this.context = context;
this.userAgent = userAgent;
this.url = url;
this.drmCallback = drmCallback;
}
@Override
public void buildRenderers(DemoPlayer player) {
currentAsyncBuilder = new AsyncRendererBuilder(context, userAgent, url, drmCallback, player);
currentAsyncBuilder.init();
}
@Override
public void cancel() {
if (currentAsyncBuilder != null) {
currentAsyncBuilder.cancel();
currentAsyncBuilder = null;
}
}
private static final class AsyncRendererBuilder
implements ManifestFetcher.ManifestCallback<MediaPresentationDescription>, UtcTimingCallback {
private final Context context;
private final String userAgent;
private final MediaDrmCallback drmCallback;
private final DemoPlayer player;
private final ManifestFetcher<MediaPresentationDescription> manifestFetcher;
private final UriDataSource manifestDataSource;
private boolean canceled;
private MediaPresentationDescription manifest;
private long elapsedRealtimeOffset;
public AsyncRendererBuilder(Context context, String userAgent, String url,
MediaDrmCallback drmCallback, DemoPlayer player) {
this.context = context;
this.userAgent = userAgent;
this.drmCallback = drmCallback;
this.player = player;
MediaPresentationDescriptionParser parser = new MediaPresentationDescriptionParser();
manifestDataSource = new DefaultUriDataSource(context, userAgent);
manifestFetcher = new ManifestFetcher<>(url, manifestDataSource, parser);
}
public void init() {
manifestFetcher.singleLoad(player.getMainHandler().getLooper(), this);
}
public void cancel() {
canceled = true;
}
@Override
public void onSingleManifest(MediaPresentationDescription manifest) {
if (canceled) {
return;
}
this.manifest = manifest;
if (manifest.dynamic && manifest.utcTiming != null) {
UtcTimingElementResolver.resolveTimingElement(manifestDataSource, manifest.utcTiming,
manifestFetcher.getManifestLoadCompleteTimestamp(), this);
} else {
buildRenderers();
}
}
@Override
public void onSingleManifestError(IOException e) {
if (canceled) {
return;
}
player.onRenderersError(e);
}
@Override
public void onTimestampResolved(UtcTimingElement utcTiming, long elapsedRealtimeOffset) {
if (canceled) {
return;
}
this.elapsedRealtimeOffset = elapsedRealtimeOffset;
buildRenderers();
}
@Override
public void onTimestampError(UtcTimingElement utcTiming, IOException e) {
if (canceled) {
return;
}
Log.e(TAG, "Failed to resolve UtcTiming element [" + utcTiming + "]", e);
// Be optimistic and continue in the hope that the device clock is correct.
buildRenderers();
}
private void buildRenderers() {
Period period = manifest.getPeriod(0);
Handler mainHandler = player.getMainHandler();
LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(mainHandler, player);
boolean hasContentProtection = false;
for (int i = 0; i < period.adaptationSets.size(); i++) {
AdaptationSet adaptationSet = period.adaptationSets.get(i);
if (adaptationSet.type != AdaptationSet.TYPE_UNKNOWN) {
hasContentProtection |= adaptationSet.hasContentProtection();
}
}
// Check drm support if necessary.
boolean filterHdContent = false;
StreamingDrmSessionManager drmSessionManager = null;
if (hasContentProtection) {
if (Util.SDK_INT < 18) {
player.onRenderersError(
new UnsupportedDrmException(UnsupportedDrmException.REASON_UNSUPPORTED_SCHEME));
return;
}
try {
drmSessionManager = StreamingDrmSessionManager.newWidevineInstance(
player.getPlaybackLooper(), drmCallback, null, player.getMainHandler(), player);
filterHdContent = getWidevineSecurityLevel(drmSessionManager) != SECURITY_LEVEL_1;
} catch (UnsupportedDrmException e) {
player.onRenderersError(e);
return;
}
}
// Build the video renderer.
DataSource videoDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
ChunkSource videoChunkSource = new DashChunkSource(manifestFetcher,
DefaultDashTrackSelector.newVideoInstance(context, true, filterHdContent),
videoDataSource, new AdaptiveEvaluator(bandwidthMeter), LIVE_EDGE_LATENCY_MS,
elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_VIDEO);
ChunkSampleSource videoSampleSource = new ChunkSampleSource(videoChunkSource, loadControl,
VIDEO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
DemoPlayer.TYPE_VIDEO);
TrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context, videoSampleSource,
MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000,
drmSessionManager, true, mainHandler, player, 50);
// Build the audio renderer.
DataSource audioDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
ChunkSource audioChunkSource = new DashChunkSource(manifestFetcher,
DefaultDashTrackSelector.newAudioInstance(), audioDataSource, null, LIVE_EDGE_LATENCY_MS,
elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_AUDIO);
ChunkSampleSource audioSampleSource = new ChunkSampleSource(audioChunkSource, loadControl,
AUDIO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
DemoPlayer.TYPE_AUDIO);
TrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(audioSampleSource,
MediaCodecSelector.DEFAULT, drmSessionManager, true, mainHandler, player,
AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);
// Build the text renderer.
DataSource textDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
ChunkSource textChunkSource = new DashChunkSource(manifestFetcher,
DefaultDashTrackSelector.newTextInstance(), textDataSource, null, LIVE_EDGE_LATENCY_MS,
elapsedRealtimeOffset, mainHandler, player, DemoPlayer.TYPE_TEXT);
ChunkSampleSource textSampleSource = new ChunkSampleSource(textChunkSource, loadControl,
TEXT_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
DemoPlayer.TYPE_TEXT);
TrackRenderer textRenderer = new TextTrackRenderer(textSampleSource, player,
mainHandler.getLooper());
// Invoke the callback.
TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
player.onRenderers(renderers, bandwidthMeter);
}
private static int getWidevineSecurityLevel(StreamingDrmSessionManager sessionManager) {
String securityLevelProperty = sessionManager.getPropertyString("securityLevel");
return securityLevelProperty.equals("L1") ? SECURITY_LEVEL_1 : securityLevelProperty
.equals("L3") ? SECURITY_LEVEL_3 : SECURITY_LEVEL_UNKNOWN;
}
}
}