/* * The contents of this file are subject to the Mozilla Public * License Version 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code is MPEG4IP. * * The Initial Developer of the Original Code is Cisco Systems Inc. * Portions created by Cisco Systems Inc. are * Copyright (C) Cisco Systems Inc. 2004. All Rights Reserved. * * Contributor(s): * Bill May (from others work). */ #include "mp4common.h" #include "atoms.h" static const char name[5]={'\xA9','n', 'a', 'm', '\0'}; static const char art[5]={'\xA9','A', 'R', 'T', '\0'}; static const char wrt[5]={'\xA9','w', 'r', 't', '\0'}; static const char alb[5]={'\xA9','a', 'l', 'b', '\0'}; static const char day[5]={'\xA9','d', 'a', 'y', '\0'}; static const char too[5]={'\xA9','t', 'o', 'o', '\0'}; static const char cmt[5]={'\xA9','c', 'm', 't', '\0'}; static const char gen[5]={'\xA9','g', 'e', 'n', '\0'}; static const char grp[5]={'\xA9','g', 'r', 'p', '\0'}; MP4StandardAtom::MP4StandardAtom (const char *type) : MP4Atom(type) { /* * This is a big if else loop. Make sure that you don't break it * when adding new atoms, or you will set the unknown type flag * * Try to keep it in alphabetical order - it should only be called * 1 time per atom, so it's not that urgent. */ if (ATOMID(type) == ATOMID("aART") || ATOMID(type) == ATOMID("akID") || ATOMID(type) == ATOMID("apID") || ATOMID(type) == ATOMID("atID")) { ExpectChildAtom("data", Required, OnlyOne); /* * b??? */ } else if (ATOMID(type) == ATOMID("bitr")) { AddProperty( /* 0 */ new MP4Integer32Property("avgBitrate")); AddProperty( /* 1 */ new MP4Integer32Property("maxBitrate")); } else if (ATOMID(type) == ATOMID("btrt")) { AddProperty( new MP4Integer32Property("bufferSizeDB")); /* 0 */ AddProperty( new MP4Integer32Property("avgBitrate")); /* 1 */ AddProperty( new MP4Integer32Property("maxBitrate")); /* 2 */ } else if (ATOMID(type) == ATOMID("burl")) { AddProperty( new MP4StringProperty("base_url")); /* * c??? */ } else if (ATOMID(type) == ATOMID("co64")) { AddVersionAndFlags(); MP4Integer32Property* pCount = new MP4Integer32Property("entryCount"); AddProperty(pCount); MP4TableProperty* pTable = new MP4TableProperty("entries", pCount); AddProperty(pTable); pTable->AddProperty( new MP4Integer64Property("chunkOffset")); } else if (ATOMID(type) == ATOMID("cpil")) { ExpectChildAtom("data", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("covr")) { /* Apple iTunes */ ExpectChildAtom("data", Required, Many); } else if (ATOMID(type) == ATOMID("cprt") || ATOMID(type) == ATOMID("cnID")) { #if 0 AddVersionAndFlags(); AddProperty( new MP4Integer16Property("language")); AddProperty( new MP4StringProperty("notice")); #else ExpectChildAtom("data", Required, OnlyOne); #endif } else if (ATOMID(type) == ATOMID("ctts")) { AddVersionAndFlags(); MP4Integer32Property* pCount = new MP4Integer32Property("entryCount"); AddProperty(pCount); MP4TableProperty* pTable = new MP4TableProperty("entries", pCount); AddProperty(pTable); pTable->AddProperty(new MP4Integer32Property("sampleCount")); pTable->AddProperty(new MP4Integer32Property("sampleOffset")); /* * d??? */ } else if (ATOMID(type) == ATOMID("dinf")) { ExpectChildAtom("dref", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("dimm")) { AddProperty( // bytes of immediate data new MP4Integer64Property("bytes")); } else if (ATOMID(type) == ATOMID("disk")) { /* Apple iTunes */ ExpectChildAtom("data", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("dmax")) { AddProperty( // max packet duration new MP4Integer32Property("milliSecs")); } else if (ATOMID(type) == ATOMID("dmed")) { AddProperty( // bytes sent from media data new MP4Integer64Property("bytes")); } else if (ATOMID(type) == ATOMID("drep")) { AddProperty( // bytes of repeated data new MP4Integer64Property("bytes")); /* * e??? */ } else if (ATOMID(type) == ATOMID("edts")) { ExpectChildAtom("elst", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("esds")) { AddVersionAndFlags(); AddProperty( new MP4DescriptorProperty(NULL, MP4ESDescrTag, 0, Required, OnlyOne)); /* * f??? */ } else if (ATOMID(type) == ATOMID("frma")) { AddProperty( /* 0 */ new MP4Integer32Property("data-format")); /* * g??? */ } else if (ATOMID(type) == ATOMID("gmhd")) { ExpectChildAtom("gmin", Required, OnlyOne); ExpectChildAtom("tmcd", Optional, OnlyOne); ExpectChildAtom("text", Optional, OnlyOne); } else if (ATOMID(type) == ATOMID("gnre") || ATOMID(type) == ATOMID("geID")) { // Apple iTunes ExpectChildAtom("data", Optional, OnlyOne); /* * h??? */ } else if (ATOMID(type) == ATOMID("hmhd")) { AddVersionAndFlags(); AddProperty(new MP4Integer16Property("maxPduSize")); AddProperty(new MP4Integer16Property("avgPduSize")); AddProperty(new MP4Integer32Property("maxBitRate")); AddProperty(new MP4Integer32Property("avgBitRate")); AddProperty(new MP4Integer32Property("slidingAvgBitRate")); /* * i??? */ } else if (ATOMID(type) == ATOMID("iKMS")) { AddVersionAndFlags(); /* 0, 1 */ MP4StringProperty* pProp = new MP4StringProperty("kms_URI"); AddProperty(pProp); /* 2 */ } else if (ATOMID(type) == ATOMID("iSFM")) { AddVersionAndFlags(); /* 0, 1 */ AddProperty( /* 2 */ new MP4BitfieldProperty("selective-encryption", 1)); AddProperty( /* 3 */ new MP4BitfieldProperty("reserved", 7)); AddProperty( /* 4 */ new MP4Integer8Property("key-indicator-length")); AddProperty( /* 5 */ new MP4Integer8Property("IV-length")); } else if (ATOMID(type) == ATOMID("ilst")) { ExpectChildAtom("\251nam", Optional, OnlyOne); /* name */ ExpectChildAtom("\251ART", Optional, OnlyOne); /* artist */ ExpectChildAtom("\251wrt", Optional, OnlyOne); /* writer */ ExpectChildAtom("\251alb", Optional, OnlyOne); /* album */ ExpectChildAtom("\251day", Optional, OnlyOne); /* date */ ExpectChildAtom("\251too", Optional, OnlyOne); /* tool */ ExpectChildAtom("\251cmt", Optional, OnlyOne); /* comment */ ExpectChildAtom("\251gen", Optional, OnlyOne); /* custom genre */ ExpectChildAtom("trkn", Optional, OnlyOne); /* tracknumber */ ExpectChildAtom("disk", Optional, OnlyOne); /* disknumber */ ExpectChildAtom("gnre", Optional, OnlyOne); /* genre (ID3v1 index + 1) */ ExpectChildAtom("cpil", Optional, OnlyOne); /* compilation */ ExpectChildAtom("tmpo", Optional, OnlyOne); /* BPM */ ExpectChildAtom("covr", Optional, OnlyOne); /* cover art */ ExpectChildAtom("aART", Optional, OnlyOne); /* album artist */ ExpectChildAtom("----", Optional, Many); /* ---- free form */ ExpectChildAtom("pgap", Optional, OnlyOne); /* part of gapless album */ ExpectChildAtom("rate", Optional, OnlyOne); /* rating 0-100 */ } else if (ATOMID(type) == ATOMID("imif")) { AddVersionAndFlags(); AddProperty(new MP4DescriptorProperty("ipmp_desc", MP4IPMPDescrTag, MP4IPMPDescrTag, Required, Many)); } else if (ATOMID(type) == ATOMID("iods")) { AddVersionAndFlags(); AddProperty( new MP4DescriptorProperty(NULL, MP4FileIODescrTag, MP4FileODescrTag, Required, OnlyOne)); /* * m??? */ } else if (ATOMID(type) == ATOMID("maxr")) { AddProperty(new MP4Integer32Property("granularity")); AddProperty(new MP4Integer32Property("bytes")); } else if (ATOMID(type) == ATOMID("mdia")) { ExpectChildAtom("mdhd", Required, OnlyOne); ExpectChildAtom("hdlr", Required, OnlyOne); ExpectChildAtom("minf", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("meta")) { // iTunes AddVersionAndFlags(); /* 0, 1 */ ExpectChildAtom("hdlr", Required, OnlyOne); ExpectChildAtom("ilst", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("mfhd")) { AddVersionAndFlags(); /* 0, 1 */ AddProperty( /* 2 */ new MP4Integer32Property("sequenceNumber")); } else if (ATOMID(type) == ATOMID("minf")) { ExpectChildAtom("vmhd", Optional, OnlyOne); ExpectChildAtom("smhd", Optional, OnlyOne); ExpectChildAtom("hmhd", Optional, OnlyOne); ExpectChildAtom("nmhd", Optional, OnlyOne); ExpectChildAtom("gmhd", Optional, OnlyOne); ExpectChildAtom("dinf", Required, OnlyOne); ExpectChildAtom("stbl", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("moof")) { ExpectChildAtom("mfhd", Required, OnlyOne); ExpectChildAtom("traf", Optional, Many); } else if (ATOMID(type) == ATOMID("moov")) { ExpectChildAtom("mvhd", Required, OnlyOne); ExpectChildAtom("iods", Optional, OnlyOne); ExpectChildAtom("trak", Required, Many); ExpectChildAtom("udta", Optional, Many); ExpectChildAtom("mvex", Optional, OnlyOne); } else if (ATOMID(type) == ATOMID("mvex")) { ExpectChildAtom("trex", Required, Many); /* * n??? */ } else if (ATOMID(type) == ATOMID("nmhd")) { AddVersionAndFlags(); } else if (ATOMID(type) == ATOMID("nump")) { AddProperty( // packets sent new MP4Integer64Property("packets")); /* * o??? */ } else if (ATOMID(type) == ATOMID("odkm")) { AddVersionAndFlags(); ExpectChildAtom("ohdr", Required, OnlyOne); /* * p??? */ } else if (ATOMID(type) == ATOMID("payt")) { AddProperty(new MP4Integer32Property("payloadNumber")); AddProperty(new MP4StringProperty("rtpMap", Counted)); } else if (ATOMID(type) == ATOMID("pinf")) { ExpectChildAtom("frma", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("pmax")) { AddProperty( // max packet size new MP4Integer32Property("bytes")); } else if (ATOMID(type) == ATOMID("pgap") || ATOMID(type) == ATOMID("plID") || ATOMID(type) == ATOMID("purd") || ATOMID(type) == ATOMID("rtng")) { ExpectChildAtom("data", Required, OnlyOne); /* * s??? */ } else if (ATOMID(type) == ATOMID("schi")) { // not sure if this is child atoms or table of boxes // get clarification on spec 9.1.2.5 ExpectChildAtom("odkm", Optional, OnlyOne); ExpectChildAtom("iKMS", Optional, OnlyOne); ExpectChildAtom("iSFM", Optional, OnlyOne); } else if (ATOMID(type) == ATOMID("schm")) { AddVersionAndFlags(); /* 0, 1 */ AddProperty( /* 2 */ new MP4Integer32Property("scheme_type")); AddProperty( /* 3 */ new MP4Integer32Property("scheme_version")); // browser URI if flags set, TODO } else if (ATOMID(type) == ATOMID("sinf")) { ExpectChildAtom("frma", Required, OnlyOne); ExpectChildAtom("imif", Optional, OnlyOne); ExpectChildAtom("schm", Optional, OnlyOne); ExpectChildAtom("schi", Optional, OnlyOne); } else if (ATOMID(type) == ATOMID("smhd")) { AddVersionAndFlags(); AddReserved("reserved", 4); } else if (ATOMID(type) == ATOMID("snro")) { AddProperty(new MP4Integer32Property("offset")); } else if (ATOMID(type) == ATOMID("stco")) { AddVersionAndFlags(); MP4Integer32Property* pCount = new MP4Integer32Property("entryCount"); AddProperty(pCount); MP4TableProperty* pTable = new MP4TableProperty("entries", pCount); AddProperty(pTable); pTable->AddProperty(new MP4Integer32Property("chunkOffset")); } else if (ATOMID(type) == ATOMID("stsh")) { AddVersionAndFlags(); MP4Integer32Property* pCount = new MP4Integer32Property("entryCount"); AddProperty(pCount); MP4TableProperty* pTable = new MP4TableProperty("entries", pCount); AddProperty(pTable); pTable->AddProperty(new MP4Integer32Property("shadowedSampleNumber")); pTable->AddProperty(new MP4Integer32Property("syncSampleNumber")); } else if (ATOMID(type) == ATOMID("stss")) { AddVersionAndFlags(); MP4Integer32Property* pCount = new MP4Integer32Property("entryCount"); AddProperty(pCount); MP4TableProperty* pTable = new MP4TableProperty("entries", pCount); AddProperty(pTable); pTable->AddProperty(new MP4Integer32Property("sampleNumber")); } else if (ATOMID(type) == ATOMID("stts")) { AddVersionAndFlags(); MP4Integer32Property* pCount = new MP4Integer32Property("entryCount"); AddProperty(pCount); MP4TableProperty* pTable = new MP4TableProperty("entries", pCount); AddProperty(pTable); pTable->AddProperty(new MP4Integer32Property("sampleCount")); pTable->AddProperty(new MP4Integer32Property("sampleDelta")); } else if (ATOMID(type) == ATOMID("sfID") || ATOMID(type) == ATOMID("stik")) { ExpectChildAtom("data", Required, OnlyOne); /* * t??? */ } else if (ATOMID(type) == ATOMID("tims")) { AddProperty( new MP4Integer32Property("timeScale")); } else if (ATOMID(type) == ATOMID("tmin")) { AddProperty( // min relative xmit time new MP4Integer32Property("milliSecs")); } else if (ATOMID(type) == ATOMID("tmax")) { AddProperty( // max relative xmit time new MP4Integer32Property("milliSecs")); } else if (ATOMID(type) == ATOMID("tmpo")) { // iTunes ExpectChildAtom("data", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("traf")) { ExpectChildAtom("tfhd", Required, OnlyOne); ExpectChildAtom("trun", Optional, Many); } else if (ATOMID(type) == ATOMID("trak")) { ExpectChildAtom("tkhd", Required, OnlyOne); ExpectChildAtom("tref", Optional, OnlyOne); ExpectChildAtom("edts", Optional, OnlyOne); ExpectChildAtom("mdia", Required, OnlyOne); ExpectChildAtom("udta", Optional, Many); } else if (ATOMID(type) == ATOMID("tref")) { ExpectChildAtom("chap", Optional, OnlyOne); ExpectChildAtom("dpnd", Optional, OnlyOne); ExpectChildAtom("hint", Optional, OnlyOne); ExpectChildAtom("ipir", Optional, OnlyOne); ExpectChildAtom("mpod", Optional, OnlyOne); ExpectChildAtom("sync", Optional, OnlyOne); } else if (ATOMID(type) == ATOMID("trex")) { AddVersionAndFlags(); /* 0, 1 */ AddProperty( /* 2 */ new MP4Integer32Property("trackId")); AddProperty( /* 3 */ new MP4Integer32Property("defaultSampleDesriptionIndex")); AddProperty( /* 4 */ new MP4Integer32Property("defaultSampleDuration")); AddProperty( /* 5 */ new MP4Integer32Property("defaultSampleSize")); AddProperty( /* 6 */ new MP4Integer32Property("defaultSampleFlags")); } else if (ATOMID(type) == ATOMID("rate")) { ExpectChildAtom("data", Optional, OnlyOne); } else if (ATOMID(type) == ATOMID("trkn")) { // iTunes ExpectChildAtom("data", Required, OnlyOne); } else if (ATOMID(type) == ATOMID("trpy") || ATOMID(type) == ATOMID("tpyl")) { AddProperty( // bytes sent including RTP headers new MP4Integer64Property("bytes")); } else if (ATOMID(type) == ATOMID("tsro")) { AddProperty( new MP4Integer32Property("offset")); } else if (ATOMID(type) == ATOMID("wave")) { ExpectChildAtom("esds", Required, OnlyOne); /* * copyright??? */ } else if (ATOMID(type) == ATOMID(art) || ATOMID(type) == ATOMID(wrt) || ATOMID(type) == ATOMID(alb) || ATOMID(type) == ATOMID(day) || ATOMID(type) == ATOMID(too) || ATOMID(type) == ATOMID(gen) || ATOMID(type) == ATOMID(grp)) { /* Apple iTunes */ ExpectChildAtom("data", Required, OnlyOne); /* * ---- */ } else if (ATOMID(type) == ATOMID("----")) { /* Apple iTunes */ ExpectChildAtom("mean", Required, OnlyOne); ExpectChildAtom("name", Required, OnlyOne); ExpectChildAtom("data", Required, OnlyOne); } else { /* * default - unknown type */ SetUnknownType(true); } }