/*
* 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 tv.danmaku.ijk.media.exo.demo.player.DemoPlayer.RendererBuilder;
import com.google.android.exoplayer.drm.DrmSessionManager;
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.smoothstreaming.DefaultSmoothStreamingTrackSelector;
import com.google.android.exoplayer.smoothstreaming.SmoothStreamingChunkSource;
import com.google.android.exoplayer.smoothstreaming.SmoothStreamingManifest;
import com.google.android.exoplayer.smoothstreaming.SmoothStreamingManifestParser;
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.DefaultHttpDataSource;
import com.google.android.exoplayer.upstream.DefaultUriDataSource;
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 java.io.IOException;
/**
* A {link RendererBuilder} for SmoothStreaming.
*/
public class SmoothStreamingRendererBuilder implements RendererBuilder {
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 final Context context;
private final String userAgent;
private final String url;
private final MediaDrmCallback drmCallback;
private AsyncRendererBuilder currentAsyncBuilder;
public SmoothStreamingRendererBuilder(Context context, String userAgent, String url,
MediaDrmCallback drmCallback) {
this.context = context;
this.userAgent = userAgent;
this.url = Util.toLowerInvariant(url).endsWith("/manifest") ? url : url + "/Manifest";
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<SmoothStreamingManifest> {
private final Context context;
private final String userAgent;
private final MediaDrmCallback drmCallback;
private final DemoPlayer player;
private final ManifestFetcher<SmoothStreamingManifest> manifestFetcher;
private boolean canceled;
public AsyncRendererBuilder(Context context, String userAgent, String url,
MediaDrmCallback drmCallback, DemoPlayer player) {
this.context = context;
this.userAgent = userAgent;
this.drmCallback = drmCallback;
this.player = player;
SmoothStreamingManifestParser parser = new SmoothStreamingManifestParser();
manifestFetcher = new ManifestFetcher<>(url, new DefaultHttpDataSource(userAgent, null),
parser);
}
public void init() {
manifestFetcher.singleLoad(player.getMainHandler().getLooper(), this);
}
public void cancel() {
canceled = true;
}
@Override
public void onSingleManifestError(IOException exception) {
if (canceled) {
return;
}
player.onRenderersError(exception);
}
@Override
public void onSingleManifest(SmoothStreamingManifest manifest) {
if (canceled) {
return;
}
Handler mainHandler = player.getMainHandler();
LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(mainHandler, player);
// Check drm support if necessary.
DrmSessionManager drmSessionManager = null;
if (manifest.protectionElement != null) {
if (Util.SDK_INT < 18) {
player.onRenderersError(
new UnsupportedDrmException(UnsupportedDrmException.REASON_UNSUPPORTED_SCHEME));
return;
}
try {
drmSessionManager = new StreamingDrmSessionManager(manifest.protectionElement.uuid,
player.getPlaybackLooper(), drmCallback, null, player.getMainHandler(), player);
} catch (UnsupportedDrmException e) {
player.onRenderersError(e);
return;
}
}
// Build the video renderer.
DataSource videoDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
ChunkSource videoChunkSource = new SmoothStreamingChunkSource(manifestFetcher,
DefaultSmoothStreamingTrackSelector.newVideoInstance(context, true, false),
videoDataSource, new AdaptiveEvaluator(bandwidthMeter), LIVE_EDGE_LATENCY_MS);
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 SmoothStreamingChunkSource(manifestFetcher,
DefaultSmoothStreamingTrackSelector.newAudioInstance(),
audioDataSource, null, LIVE_EDGE_LATENCY_MS);
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 SmoothStreamingChunkSource(manifestFetcher,
DefaultSmoothStreamingTrackSelector.newTextInstance(),
textDataSource, null, LIVE_EDGE_LATENCY_MS);
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);
}
}
}