diff options
Diffstat (limited to 'mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/extractor/mp4/Atom.java')
| -rw-r--r-- | mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/extractor/mp4/Atom.java | 558 |
1 files changed, 558 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/extractor/mp4/Atom.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/extractor/mp4/Atom.java new file mode 100644 index 0000000000..56f0eab1cd --- /dev/null +++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/extractor/mp4/Atom.java @@ -0,0 +1,558 @@ +/* + * 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 org.mozilla.thirdparty.com.google.android.exoplayer2.extractor.mp4; + +import androidx.annotation.Nullable; +import org.mozilla.thirdparty.com.google.android.exoplayer2.util.ParsableByteArray; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; + +@SuppressWarnings("ConstantField") +/* package */ abstract class Atom { + + /** + * Size of an atom header, in bytes. + */ + public static final int HEADER_SIZE = 8; + + /** + * Size of a full atom header, in bytes. + */ + public static final int FULL_HEADER_SIZE = 12; + + /** + * Size of a long atom header, in bytes. + */ + public static final int LONG_HEADER_SIZE = 16; + + /** + * Value for the size field in an atom that defines its size in the largesize field. + */ + public static final int DEFINES_LARGE_SIZE = 1; + + /** + * Value for the size field in an atom that extends to the end of the file. + */ + public static final int EXTENDS_TO_END_SIZE = 0; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_ftyp = 0x66747970; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_avc1 = 0x61766331; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_avc3 = 0x61766333; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_avcC = 0x61766343; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_hvc1 = 0x68766331; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_hev1 = 0x68657631; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_hvcC = 0x68766343; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_vp08 = 0x76703038; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_vp09 = 0x76703039; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_vpcC = 0x76706343; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_av01 = 0x61763031; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_av1C = 0x61763143; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dvav = 0x64766176; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dva1 = 0x64766131; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dvhe = 0x64766865; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dvh1 = 0x64766831; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dvcC = 0x64766343; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dvvC = 0x64767643; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_s263 = 0x73323633; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_d263 = 0x64323633; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mdat = 0x6d646174; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mp4a = 0x6d703461; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE__mp3 = 0x2e6d7033; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_wave = 0x77617665; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_lpcm = 0x6c70636d; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_sowt = 0x736f7774; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_ac_3 = 0x61632d33; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dac3 = 0x64616333; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_ec_3 = 0x65632d33; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dec3 = 0x64656333; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_ac_4 = 0x61632d34; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dac4 = 0x64616334; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dtsc = 0x64747363; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dtsh = 0x64747368; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dtsl = 0x6474736c; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dtse = 0x64747365; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_ddts = 0x64647473; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_tfdt = 0x74666474; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_tfhd = 0x74666864; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_trex = 0x74726578; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_trun = 0x7472756e; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_sidx = 0x73696478; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_moov = 0x6d6f6f76; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mvhd = 0x6d766864; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_trak = 0x7472616b; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mdia = 0x6d646961; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_minf = 0x6d696e66; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stbl = 0x7374626c; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_esds = 0x65736473; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_moof = 0x6d6f6f66; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_traf = 0x74726166; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mvex = 0x6d766578; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mehd = 0x6d656864; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_tkhd = 0x746b6864; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_edts = 0x65647473; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_elst = 0x656c7374; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mdhd = 0x6d646864; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_hdlr = 0x68646c72; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stsd = 0x73747364; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_pssh = 0x70737368; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_sinf = 0x73696e66; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_schm = 0x7363686d; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_schi = 0x73636869; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_tenc = 0x74656e63; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_encv = 0x656e6376; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_enca = 0x656e6361; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_frma = 0x66726d61; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_saiz = 0x7361697a; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_saio = 0x7361696f; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_sbgp = 0x73626770; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_sgpd = 0x73677064; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_uuid = 0x75756964; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_senc = 0x73656e63; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_pasp = 0x70617370; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_TTML = 0x54544d4c; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_vmhd = 0x766d6864; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mp4v = 0x6d703476; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stts = 0x73747473; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stss = 0x73747373; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_ctts = 0x63747473; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stsc = 0x73747363; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stsz = 0x7374737a; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stz2 = 0x73747a32; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stco = 0x7374636f; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_co64 = 0x636f3634; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_tx3g = 0x74783367; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_wvtt = 0x77767474; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_stpp = 0x73747070; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_c608 = 0x63363038; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_samr = 0x73616d72; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_sawb = 0x73617762; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_udta = 0x75647461; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_meta = 0x6d657461; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_keys = 0x6b657973; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_ilst = 0x696c7374; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_mean = 0x6d65616e; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_name = 0x6e616d65; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_data = 0x64617461; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_emsg = 0x656d7367; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_st3d = 0x73743364; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_sv3d = 0x73763364; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_proj = 0x70726f6a; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_camm = 0x63616d6d; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_alac = 0x616c6163; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_alaw = 0x616c6177; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_ulaw = 0x756c6177; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_Opus = 0x4f707573; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dOps = 0x644f7073; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_fLaC = 0x664c6143; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_dfLa = 0x64664c61; + + @SuppressWarnings("ConstantCaseForConstants") + public static final int TYPE_twos = 0x74776f73; + + public final int type; + + public Atom(int type) { + this.type = type; + } + + @Override + public String toString() { + return getAtomTypeString(type); + } + + /** + * An MP4 atom that is a leaf. + */ + /* package */ static final class LeafAtom extends Atom { + + /** + * The atom data. + */ + public final ParsableByteArray data; + + /** + * @param type The type of the atom. + * @param data The atom data. + */ + public LeafAtom(int type, ParsableByteArray data) { + super(type); + this.data = data; + } + + } + + /** + * An MP4 atom that has child atoms. + */ + /* package */ static final class ContainerAtom extends Atom { + + public final long endPosition; + public final List<LeafAtom> leafChildren; + public final List<ContainerAtom> containerChildren; + + /** + * @param type The type of the atom. + * @param endPosition The position of the first byte after the end of the atom. + */ + public ContainerAtom(int type, long endPosition) { + super(type); + this.endPosition = endPosition; + leafChildren = new ArrayList<>(); + containerChildren = new ArrayList<>(); + } + + /** + * Adds a child leaf to this container. + * + * @param atom The child to add. + */ + public void add(LeafAtom atom) { + leafChildren.add(atom); + } + + /** + * Adds a child container to this container. + * + * @param atom The child to add. + */ + public void add(ContainerAtom atom) { + containerChildren.add(atom); + } + + /** + * Returns the child leaf of the given type. + * + * <p>If no child exists with the given type then null is returned. If multiple children exist + * with the given type then the first one to have been added is returned. + * + * @param type The leaf type. + * @return The child leaf of the given type, or null if no such child exists. + */ + @Nullable + public LeafAtom getLeafAtomOfType(int type) { + int childrenSize = leafChildren.size(); + for (int i = 0; i < childrenSize; i++) { + LeafAtom atom = leafChildren.get(i); + if (atom.type == type) { + return atom; + } + } + return null; + } + + /** + * Returns the child container of the given type. + * + * <p>If no child exists with the given type then null is returned. If multiple children exist + * with the given type then the first one to have been added is returned. + * + * @param type The container type. + * @return The child container of the given type, or null if no such child exists. + */ + @Nullable + public ContainerAtom getContainerAtomOfType(int type) { + int childrenSize = containerChildren.size(); + for (int i = 0; i < childrenSize; i++) { + ContainerAtom atom = containerChildren.get(i); + if (atom.type == type) { + return atom; + } + } + return null; + } + + /** + * Returns the total number of leaf/container children of this atom with the given type. + * + * @param type The type of child atoms to count. + * @return The total number of leaf/container children of this atom with the given type. + */ + public int getChildAtomOfTypeCount(int type) { + int count = 0; + int size = leafChildren.size(); + for (int i = 0; i < size; i++) { + LeafAtom atom = leafChildren.get(i); + if (atom.type == type) { + count++; + } + } + size = containerChildren.size(); + for (int i = 0; i < size; i++) { + ContainerAtom atom = containerChildren.get(i); + if (atom.type == type) { + count++; + } + } + return count; + } + + @Override + public String toString() { + return getAtomTypeString(type) + + " leaves: " + Arrays.toString(leafChildren.toArray()) + + " containers: " + Arrays.toString(containerChildren.toArray()); + } + + } + + /** + * Parses the version number out of the additional integer component of a full atom. + */ + public static int parseFullAtomVersion(int fullAtomInt) { + return 0x000000FF & (fullAtomInt >> 24); + } + + /** + * Parses the atom flags out of the additional integer component of a full atom. + */ + public static int parseFullAtomFlags(int fullAtomInt) { + return 0x00FFFFFF & fullAtomInt; + } + + /** + * Converts a numeric atom type to the corresponding four character string. + * + * @param type The numeric atom type. + * @return The corresponding four character string. + */ + public static String getAtomTypeString(int type) { + return "" + (char) ((type >> 24) & 0xFF) + + (char) ((type >> 16) & 0xFF) + + (char) ((type >> 8) & 0xFF) + + (char) (type & 0xFF); + } + +} |