/*
* 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.SampleSource;
import com.google.android.exoplayer.TrackRenderer;
import com.google.android.exoplayer.audio.AudioCapabilities;
import tv.danmaku.ijk.media.exo.demo.player.DemoPlayer.RendererBuilder;
import com.google.android.exoplayer.hls.DefaultHlsTrackSelector;
import com.google.android.exoplayer.hls.HlsChunkSource;
import com.google.android.exoplayer.hls.HlsMasterPlaylist;
import com.google.android.exoplayer.hls.HlsPlaylist;
import com.google.android.exoplayer.hls.HlsPlaylistParser;
import com.google.android.exoplayer.hls.HlsSampleSource;
import com.google.android.exoplayer.hls.PtsTimestampAdjusterProvider;
import com.google.android.exoplayer.metadata.MetadataTrackRenderer;
import com.google.android.exoplayer.metadata.id3.Id3Frame;
import com.google.android.exoplayer.metadata.id3.Id3Parser;
import com.google.android.exoplayer.text.TextTrackRenderer;
import com.google.android.exoplayer.text.eia608.Eia608TrackRenderer;
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.util.ManifestFetcher;
import com.google.android.exoplayer.util.ManifestFetcher.ManifestCallback;
import android.content.Context;
import android.media.AudioManager;
import android.media.MediaCodec;
import android.os.Handler;
import java.io.IOException;
import java.util.List;
/**
* A {link RendererBuilder} for HLS.
*/
public class HlsRendererBuilder implements RendererBuilder {
private static final int BUFFER_SEGMENT_SIZE = 64 * 1024;
private static final int MAIN_BUFFER_SEGMENTS = 254;
private static final int AUDIO_BUFFER_SEGMENTS = 54;
private static final int TEXT_BUFFER_SEGMENTS = 2;
private final Context context;
private final String userAgent;
private final String url;
private AsyncRendererBuilder currentAsyncBuilder;
public HlsRendererBuilder(Context context, String userAgent, String url) {
this.context = context;
this.userAgent = userAgent;
this.url = url;
}
@Override
public void buildRenderers(DemoPlayer player) {
currentAsyncBuilder = new AsyncRendererBuilder(context, userAgent, url, player);
currentAsyncBuilder.init();
}
@Override
public void cancel() {
if (currentAsyncBuilder != null) {
currentAsyncBuilder.cancel();
currentAsyncBuilder = null;
}
}
private static final class AsyncRendererBuilder implements ManifestCallback<HlsPlaylist> {
private final Context context;
private final String userAgent;
private final String url;
private final DemoPlayer player;
private final ManifestFetcher<HlsPlaylist> playlistFetcher;
private boolean canceled;
public AsyncRendererBuilder(Context context, String userAgent, String url, DemoPlayer player) {
this.context = context;
this.userAgent = userAgent;
this.url = url;
this.player = player;
HlsPlaylistParser parser = new HlsPlaylistParser();
playlistFetcher = new ManifestFetcher<>(url, new DefaultUriDataSource(context, userAgent),
parser);
}
public void init() {
playlistFetcher.singleLoad(player.getMainHandler().getLooper(), this);
}
public void cancel() {
canceled = true;
}
@Override
public void onSingleManifestError(IOException e) {
if (canceled) {
return;
}
player.onRenderersError(e);
}
@Override
public void onSingleManifest(HlsPlaylist manifest) {
if (canceled) {
return;
}
Handler mainHandler = player.getMainHandler();
LoadControl loadControl = new DefaultLoadControl(new DefaultAllocator(BUFFER_SEGMENT_SIZE));
DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
PtsTimestampAdjusterProvider timestampAdjusterProvider = new PtsTimestampAdjusterProvider();
boolean haveSubtitles = false;
boolean haveAudios = false;
if (manifest instanceof HlsMasterPlaylist) {
HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) manifest;
haveSubtitles = !masterPlaylist.subtitles.isEmpty();
haveAudios = !masterPlaylist.audios.isEmpty();
}
// Build the video/id3 renderers.
DataSource dataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
HlsChunkSource chunkSource = new HlsChunkSource(true /* isMaster */, dataSource, url,
manifest, DefaultHlsTrackSelector.newDefaultInstance(context), bandwidthMeter,
timestampAdjusterProvider, HlsChunkSource.ADAPTIVE_MODE_SPLICE);
HlsSampleSource sampleSource = new HlsSampleSource(chunkSource, loadControl,
MAIN_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, DemoPlayer.TYPE_VIDEO);
MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
sampleSource, MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT,
5000, mainHandler, player, 50);
MetadataTrackRenderer<List<Id3Frame>> id3Renderer = new MetadataTrackRenderer<>(
sampleSource, new Id3Parser(), player, mainHandler.getLooper());
// Build the audio renderer.
MediaCodecAudioTrackRenderer audioRenderer;
if (haveAudios) {
DataSource audioDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
HlsChunkSource audioChunkSource = new HlsChunkSource(false /* isMaster */, audioDataSource,
url, manifest, DefaultHlsTrackSelector.newAudioInstance(), bandwidthMeter,
timestampAdjusterProvider, HlsChunkSource.ADAPTIVE_MODE_SPLICE);
HlsSampleSource audioSampleSource = new HlsSampleSource(audioChunkSource, loadControl,
AUDIO_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player,
DemoPlayer.TYPE_AUDIO);
audioRenderer = new MediaCodecAudioTrackRenderer(
new SampleSource[] {sampleSource, audioSampleSource}, MediaCodecSelector.DEFAULT, null,
true, player.getMainHandler(), player, AudioCapabilities.getCapabilities(context),
AudioManager.STREAM_MUSIC);
} else {
audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
MediaCodecSelector.DEFAULT, null, true, player.getMainHandler(), player,
AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);
}
// Build the text renderer.
TrackRenderer textRenderer;
if (haveSubtitles) {
DataSource textDataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
HlsChunkSource textChunkSource = new HlsChunkSource(false /* isMaster */, textDataSource,
url, manifest, DefaultHlsTrackSelector.newSubtitleInstance(), bandwidthMeter,
timestampAdjusterProvider, HlsChunkSource.ADAPTIVE_MODE_SPLICE);
HlsSampleSource textSampleSource = new HlsSampleSource(textChunkSource, loadControl,
TEXT_BUFFER_SEGMENTS * BUFFER_SEGMENT_SIZE, mainHandler, player, DemoPlayer.TYPE_TEXT);
textRenderer = new TextTrackRenderer(textSampleSource, player, mainHandler.getLooper());
} else {
textRenderer = new Eia608TrackRenderer(sampleSource, player, mainHandler.getLooper());
}
TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
renderers[DemoPlayer.TYPE_METADATA] = id3Renderer;
renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
player.onRenderers(renderers, bandwidthMeter);
}
}
}