/* * Copyright (C) 2016 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.google.android.exoplayer2.extractor.ts; import com.google.android.exoplayer2.C; import com.google.android.exoplayer2.Format; import com.google.android.exoplayer2.extractor.ExtractorOutput; import com.google.android.exoplayer2.extractor.TrackOutput; import com.google.android.exoplayer2.util.MimeTypes; import com.google.android.exoplayer2.util.ParsableByteArray; import com.google.android.exoplayer2.util.TimestampAdjuster; /** * Parses splice info sections as defined by SCTE35. */ public final class SpliceInfoSectionReader implements SectionPayloadReader { private TimestampAdjuster timestampAdjuster; private TrackOutput output; private boolean formatDeclared; @Override public void init(TimestampAdjuster timestampAdjuster, ExtractorOutput extractorOutput, TsPayloadReader.TrackIdGenerator idGenerator) { this.timestampAdjuster = timestampAdjuster; idGenerator.generateNewId(); output = extractorOutput.track(idGenerator.getTrackId(), C.TRACK_TYPE_METADATA); output.format(Format.createSampleFormat(idGenerator.getFormatId(), MimeTypes.APPLICATION_SCTE35, null, Format.NO_VALUE, null)); } @Override public void consume(ParsableByteArray sectionData) { if (!formatDeclared) { if (timestampAdjuster.getTimestampOffsetUs() == C.TIME_UNSET) { // There is not enough information to initialize the timestamp adjuster. return; } output.format(Format.createSampleFormat(null, MimeTypes.APPLICATION_SCTE35, timestampAdjuster.getTimestampOffsetUs())); formatDeclared = true; } int sampleSize = sectionData.bytesLeft(); output.sampleData(sectionData, sampleSize); output.sampleMetadata(timestampAdjuster.getLastAdjustedTimestampUs(), C.BUFFER_FLAG_KEY_FRAME, sampleSize, 0, null); } }