ExoPlayer播放器

/* * 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.mkv; import android.support.annotation.IntDef; import android.util.Log; import android.util.SparseArray; import com.google.android.exoplayer2.C; import com.google.android.exoplayer2.Format; import com.google.android.exoplayer2.ParserException; import com.google.android.exoplayer2.drm.DrmInitData; import com.google.android.exoplayer2.drm.DrmInitData.SchemeData; import com.google.android.exoplayer2.extractor.ChunkIndex; import com.google.android.exoplayer2.extractor.Extractor; import com.google.android.exoplayer2.extractor.ExtractorInput; import com.google.android.exoplayer2.extractor.ExtractorOutput; import com.google.android.exoplayer2.extractor.ExtractorsFactory; import com.google.android.exoplayer2.extractor.MpegAudioHeader; import com.google.android.exoplayer2.extractor.PositionHolder; import com.google.android.exoplayer2.extractor.SeekMap; import com.google.android.exoplayer2.extractor.TrackOutput; import com.google.android.exoplayer2.util.LongArray; import com.google.android.exoplayer2.util.MimeTypes; import com.google.android.exoplayer2.util.NalUnitUtil; import com.google.android.exoplayer2.util.ParsableByteArray; import com.google.android.exoplayer2.util.Util; import com.google.android.exoplayer2.video.AvcConfig; import com.google.android.exoplayer2.video.ColorInfo; import com.google.android.exoplayer2.video.HevcConfig; import java.io.IOException; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.nio.ByteBuffer; import java.nio.ByteOrder; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.List; import java.util.Locale; import java.util.UUID; /** * Extracts data from a Matroska or WebM file. */ public final class MatroskaExtractor implements Extractor { /** * Factory for {@link MatroskaExtractor} instances. */ public static final ExtractorsFactory FACTORY = new ExtractorsFactory() { @Override public Extractor[] createExtractors() { return new Extractor[] {new MatroskaExtractor()}; } }; /** * Flags controlling the behavior of the extractor. */ @Retention(RetentionPolicy.SOURCE) @IntDef(flag = true, value = {FLAG_DISABLE_SEEK_FOR_CUES}) public @interface Flags {} /** * Flag to disable seeking for cues. * <p> * Normally (i.e. when this flag is not set) the extractor will seek to the cues element if its * position is specified in the seek head and if it's after the first cluster. Setting this flag * disables seeking to the cues element. If the cues element is after the first cluster then the * media is treated as being unseekable. */ public static final int FLAG_DISABLE_SEEK_FOR_CUES = 1; private static final String TAG = "MatroskaExtractor"; private static final int UNSET_ENTRY_ID = -1; private static final int BLOCK_STATE_START = 0; private static final int BLOCK_STATE_HEADER = 1; private static final int BLOCK_STATE_DATA = 2; private static final String DOC_TYPE_MATROSKA = "matroska"; private static final String DOC_TYPE_WEBM = "webm"; private static final String CODEC_ID_VP8 = "V_VP8"; private static final String CODEC_ID_VP9 = "V_VP9"; private static final String CODEC_ID_MPEG2 = "V_MPEG2"; private static final String CODEC_ID_MPEG4_SP = "V_MPEG4/ISO/SP"; private static final String CODEC_ID_MPEG4_ASP = "V_MPEG4/ISO/ASP"; private static final String CODEC_ID_MPEG4_AP = "V_MPEG4/ISO/AP"; private static final String CODEC_ID_H264 = "V_MPEG4/ISO/AVC"; private static final String CODEC_ID_H265 = "V_MPEGH/ISO/HEVC"; private static final String CODEC_ID_FOURCC = "V_MS/VFW/FOURCC"; private static final String CODEC_ID_THEORA = "V_THEORA"; private static final String CODEC_ID_VORBIS = "A_VORBIS"; private static final String CODEC_ID_OPUS = "A_OPUS"; private static final String CODEC_ID_AAC = "A_AAC"; private static final String CODEC_ID_MP2 = "A_MPEG/L2"; private static final String CODEC_ID_MP3 = "A_MPEG/L3"; private static final String CODEC_ID_AC3 = "A_AC3"; private static final String CODEC_ID_E_AC3 = "A_EAC3"; private static final String CODEC_ID_TRUEHD = "A_TRUEHD"; private static final String CODEC_ID_DTS = "A_DTS"; private static final String CODEC_ID_DTS_EXPRESS = "A_DTS/EXPRESS"; private static final String CODEC_ID_DTS_LOSSLESS = "A_DTS/LOSSLESS"; private static final String CODEC_ID_FLAC = "A_FLAC"; private static final String CODEC_ID_ACM = "A_MS/ACM"; private static final String CODEC_ID_PCM_INT_LIT = "A_PCM/INT/LIT"; private static final String CODEC_ID_SUBRIP = "S_TEXT/UTF8"; private static final String CODEC_ID_ASS = "S_TEXT/ASS"; private static final String CODEC_ID_VOBSUB = "S_VOBSUB"; private static final String CODEC_ID_PGS = "S_HDMV/PGS"; private static final String CODEC_ID_DVBSUB = "S_DVBSUB"; private static final int VORBIS_MAX_INPUT_SIZE = 8192; private static final int OPUS_MAX_INPUT_SIZE = 5760; private static final int ENCRYPTION_IV_SIZE = 8; private static final int TRACK_TYPE_AUDIO = 2; private static final int ID_EBML = 0x1A45DFA3; private static final int ID_EBML_READ_VERSION = 0x42F7; private static final int ID_DOC_TYPE = 0x4282; private static final int ID_DOC_TYPE_READ_VERSION = 0x4285; private static final int ID_SEGMENT = 0x18538067; private static final int ID_SEGMENT_INFO = 0x1549A966; private static final int ID_SEEK_HEAD = 0x114D9B74; private static final int ID_SEEK = 0x4DBB; private static final int ID_SEEK_ID = 0x53AB; private static final int ID_SEEK_POSITION = 0x53AC; private static final int ID_INFO = 0x1549A966; private static final int ID_TIMECODE_SCALE = 0x2AD7B1; private static final int ID_DURATION = 0x4489; private static final int ID_CLUSTER = 0x1F43B675; private static final int ID_TIME_CODE = 0xE7; private static final int ID_SIMPLE_BLOCK = 0xA3; private static final int ID_BLOCK_GROUP = 0xA0; private static final int ID_BLOCK = 0xA1; private static final int ID_BLOCK_DURATION = 0x9B; private static final int ID_REFERENCE_BLOCK = 0xFB; private static final int ID_TRACKS = 0x1654AE6B; private static final int ID_TRACK_ENTRY = 0xAE; private static final int ID_TRACK_NUMBER = 0xD7; private static final int ID_TRACK_TYPE = 0x83; private static final int ID_FLAG_DEFAULT = 0x88; private static final int ID_FLAG_FORCED = 0x55AA; private static final int ID_DEFAULT_DURATION = 0x23E383; private static final int ID_CODEC_ID = 0x86; private static final int ID_CODEC_PRIVATE = 0x63A2; private static final int ID_CODEC_DELAY = 0x56AA; private static final int ID_SEEK_PRE_ROLL = 0x56BB; private static final int ID_VIDEO = 0xE0; private static final int ID_PIXEL_WIDTH = 0xB0; private static final int ID_PIXEL_HEIGHT = 0xBA; private static final int ID_DISPLAY_WIDTH = 0x54B0; private static final int ID_DISPLAY_HEIGHT = 0x54BA; private static final int ID_DISPLAY_UNIT = 0x54B2; private static final int ID_AUDIO = 0xE1; private static final int ID_CHANNELS = 0x9F; private static final int ID_AUDIO_BIT_DEPTH = 0x6264; private static final int ID_SAMPLING_FREQUENCY = 0xB5; private static final int ID_CONTENT_ENCODINGS = 0x6D80; private static final int ID_CONTENT_ENCODING = 0x6240; private static final int ID_CONTENT_