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Diffstat (limited to 'src/com/android/tv/tuner/tvinput/FileSourceEventDetector.java')
-rw-r--r--src/com/android/tv/tuner/tvinput/FileSourceEventDetector.java249
1 files changed, 0 insertions, 249 deletions
diff --git a/src/com/android/tv/tuner/tvinput/FileSourceEventDetector.java b/src/com/android/tv/tuner/tvinput/FileSourceEventDetector.java
deleted file mode 100644
index 99222bf8..00000000
--- a/src/com/android/tv/tuner/tvinput/FileSourceEventDetector.java
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Copyright (C) 2015 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.android.tv.tuner.tvinput;
-
-import android.util.Log;
-import android.util.SparseArray;
-import android.util.SparseBooleanArray;
-
-import com.android.tv.tuner.data.PsiData.PatItem;
-import com.android.tv.tuner.data.PsiData.PmtItem;
-import com.android.tv.tuner.data.PsipData.EitItem;
-import com.android.tv.tuner.data.PsipData.SdtItem;
-import com.android.tv.tuner.data.PsipData.VctItem;
-import com.android.tv.tuner.data.TunerChannel;
-import com.android.tv.tuner.data.nano.Track.AtscAudioTrack;
-import com.android.tv.tuner.data.nano.Track.AtscCaptionTrack;
-import com.android.tv.tuner.source.FileTsStreamer;
-import com.android.tv.tuner.ts.TsParser;
-import com.android.tv.tuner.tvinput.EventDetector.EventListener;
-
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-/**
- * PSIP event detector for a file source.
- *
- * <p>Uses {@link TsParser} to analyze input MPEG-2 transport stream, detects and reports
- * various PSIP-related events via {@link TsParser.TsOutputListener}.
- */
-public class FileSourceEventDetector {
- private static final String TAG = "FileSourceEventDetector";
- private static final boolean DEBUG = true;
- public static final int ALL_PROGRAM_NUMBERS = 0;
-
- private TsParser mTsParser;
- private final Set<Integer> mVctProgramNumberSet = new HashSet<>();
- private final Set<Integer> mSdtProgramNumberSet = new HashSet<>();
- private final SparseArray<TunerChannel> mChannelMap = new SparseArray<>();
- private final SparseBooleanArray mVctCaptionTracksFound = new SparseBooleanArray();
- private final SparseBooleanArray mEitCaptionTracksFound = new SparseBooleanArray();
- private final EventListener mEventListener;
- private final boolean mEnableDvbSignal;
- private FileTsStreamer.StreamProvider mStreamProvider;
- private int mProgramNumber = ALL_PROGRAM_NUMBERS;
-
- public FileSourceEventDetector(EventDetector.EventListener listener, boolean enableDvbSignal) {
- mEventListener = listener;
- mEnableDvbSignal = enableDvbSignal;
- }
-
- /**
- * Starts detecting channel and program information.
- *
- * @param provider MPEG-2 transport stream source.
- * @param programNumber The program number if this is for handling tune request. For scanning
- * purpose, supply {@link #ALL_PROGRAM_NUMBERS}.
- */
- public void start(FileTsStreamer.StreamProvider provider, int programNumber) {
- mStreamProvider = provider;
- mProgramNumber = programNumber;
- reset();
- }
-
- private void reset() {
- mTsParser = new TsParser(mTsOutputListener, mEnableDvbSignal); // TODO: Use TsParser.reset()
- mStreamProvider.clearPidFilter();
- mVctProgramNumberSet.clear();
- mSdtProgramNumberSet.clear();
- mVctCaptionTracksFound.clear();
- mEitCaptionTracksFound.clear();
- mChannelMap.clear();
- }
-
- public void feedTSStream(byte[] data, int startOffset, int length) {
- if (mStreamProvider.isFilterEmpty()) {
- startListening(TsParser.ATSC_SI_BASE_PID);
- startListening(TsParser.PAT_PID);
- }
- if (mTsParser != null) {
- mTsParser.feedTSData(data, startOffset, length);
- }
- }
-
- private void startListening(int pid) {
- if (mStreamProvider.isInFilter(pid)) {
- return;
- }
- mStreamProvider.addPidFilter(pid);
- }
-
- private final TsParser.TsOutputListener mTsOutputListener = new TsParser.TsOutputListener() {
- @Override
- public void onPatDetected(List<PatItem> items) {
- for (PatItem i : items) {
- if (mProgramNumber == ALL_PROGRAM_NUMBERS || mProgramNumber == i.getProgramNo()) {
- mStreamProvider.addPidFilter(i.getPmtPid());
- }
- }
- }
-
- @Override
- public void onEitPidDetected(int pid) {
- startListening(pid);
- }
-
- @Override
- public void onEitItemParsed(VctItem channel, List<EitItem> items) {
- TunerChannel tunerChannel = mChannelMap.get(channel.getProgramNumber());
- if (DEBUG) {
- Log.d(TAG, "onEitItemParsed tunerChannel:" + tunerChannel + " "
- + channel.getProgramNumber());
- }
- int channelSourceId = channel.getSourceId();
-
- // Source id 0 is useful for cases where a cable operator wishes to define a channel for
- // which no EPG data is currently available.
- // We don't handle such a case.
- if (channelSourceId == 0) {
- return;
- }
-
- // If at least a one caption track have been found in EIT items for the given channel,
- // we starts to interpret the zero tracks as a clearance of the caption tracks.
- boolean captionTracksFound = mEitCaptionTracksFound.get(channelSourceId);
- for (EitItem item : items) {
- if (captionTracksFound) {
- break;
- }
- List<AtscCaptionTrack> captionTracks = item.getCaptionTracks();
- if (captionTracks != null && !captionTracks.isEmpty()) {
- captionTracksFound = true;
- }
- }
- mEitCaptionTracksFound.put(channelSourceId, captionTracksFound);
- if (captionTracksFound) {
- for (EitItem item : items) {
- item.setHasCaptionTrack();
- }
- }
- if (tunerChannel != null && mEventListener != null) {
- mEventListener.onEventDetected(tunerChannel, items);
- }
- }
-
- @Override
- public void onEttPidDetected(int pid) {
- startListening(pid);
- }
-
- @Override
- public void onAllVctItemsParsed() {
- // do nothing.
- }
-
- @Override
- public void onVctItemParsed(VctItem channel, List<PmtItem> pmtItems) {
- if (DEBUG) {
- Log.d(TAG, "onVctItemParsed VCT " + channel);
- Log.d(TAG, " PMT " + pmtItems);
- }
-
- // Merges the audio and caption tracks located in PMT items into the tracks of the given
- // tuner channel.
- TunerChannel tunerChannel = TunerChannel.forFile(channel, pmtItems);
- List<AtscAudioTrack> audioTracks = new ArrayList<>();
- List<AtscCaptionTrack> captionTracks = new ArrayList<>();
- for (PmtItem pmtItem : pmtItems) {
- if (pmtItem.getAudioTracks() != null) {
- audioTracks.addAll(pmtItem.getAudioTracks());
- }
- if (pmtItem.getCaptionTracks() != null) {
- captionTracks.addAll(pmtItem.getCaptionTracks());
- }
- }
- int channelProgramNumber = channel.getProgramNumber();
-
- // If at least a one caption track have been found in VCT items for the given channel,
- // we starts to interpret the zero tracks as a clearance of the caption tracks.
- boolean captionTracksFound = mVctCaptionTracksFound.get(channelProgramNumber)
- || !captionTracks.isEmpty();
- mVctCaptionTracksFound.put(channelProgramNumber, captionTracksFound);
- if (captionTracksFound) {
- tunerChannel.setHasCaptionTrack();
- }
- tunerChannel.setFilepath(mStreamProvider.getFilepath());
- tunerChannel.setAudioTracks(audioTracks);
- tunerChannel.setCaptionTracks(captionTracks);
-
- mChannelMap.put(tunerChannel.getProgramNumber(), tunerChannel);
- boolean found = mVctProgramNumberSet.contains(channelProgramNumber);
- if (!found) {
- mVctProgramNumberSet.add(channelProgramNumber);
- }
- if (mEventListener != null) {
- mEventListener.onChannelDetected(tunerChannel, !found);
- }
- }
-
- @Override
- public void onSdtItemParsed(SdtItem channel, List<PmtItem> pmtItems) {
- if (DEBUG) {
- Log.d(TAG, "onSdtItemParsed SDT " + channel);
- Log.d(TAG, " PMT " + pmtItems);
- }
-
- // Merges the audio and caption tracks located in PMT items into the tracks of the given
- // tuner channel.
- TunerChannel tunerChannel = TunerChannel.forDvbFile(channel, pmtItems);
- List<AtscAudioTrack> audioTracks = new ArrayList<>();
- List<AtscCaptionTrack> captionTracks = new ArrayList<>();
- for (PmtItem pmtItem : pmtItems) {
- if (pmtItem.getAudioTracks() != null) {
- audioTracks.addAll(pmtItem.getAudioTracks());
- }
- if (pmtItem.getCaptionTracks() != null) {
- captionTracks.addAll(pmtItem.getCaptionTracks());
- }
- }
- int channelProgramNumber = channel.getServiceId();
- tunerChannel.setFilepath(mStreamProvider.getFilepath());
- tunerChannel.setAudioTracks(audioTracks);
- tunerChannel.setCaptionTracks(captionTracks);
- mChannelMap.put(tunerChannel.getProgramNumber(), tunerChannel);
- boolean found = mSdtProgramNumberSet.contains(channelProgramNumber);
- if (!found) {
- mSdtProgramNumberSet.add(channelProgramNumber);
- }
- if (mEventListener != null) {
- mEventListener.onChannelDetected(tunerChannel, !found);
- }
- }
- };
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 07:45:36 +0000