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< li class = "navelem" > < a class = "el" href = "../../dir_39dc0668bd5a501998f94e8b4e546c71.html" > media< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_65f7acfa8cf3a5f1edc11faa2428b914.html" > formats< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_3e9291fd7a18fdecc763294cb2628910.html" > mp4< / a > < / li > < / ul >
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< div class = "title" > box_reader.cc< / div > < / div >
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright (c) 2012 The Chromium Authors. All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > // Use of this source code is governed by a BSD-style license that can be< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // found in the LICENSE file.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp4/box_reader.h" < / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "preprocessor" > #include < inttypes.h> < / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > #include < limits> < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " packager/base/logging.h" < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/base/memory/scoped_ptr.h" < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include " packager/base/strings/stringprintf.h" < / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " packager/media/formats/mp4/box.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
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< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "keyword" > namespace < / span > shaka {< / div >
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< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "keyword" > namespace < / span > mp4 {< / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   BoxReader::BoxReader(< span class = "keyword" > const< / span > uint8_t* buf, < span class = "keywordtype" > size_t< / span > size)< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   : BufferReader(buf, size), type_(FOURCC_NULL), scanned_(false) {< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   DCHECK(buf);< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   DCHECK_LT(0u, size);< / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   }< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   BoxReader::~BoxReader() {< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keywordflow" > if< / span > (scanned_ & & !children_.empty()) {< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "keywordflow" > for< / span > (ChildMap::iterator itr = children_.begin(); itr != children_.end();< / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   ++itr) {< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   DVLOG(1) < < < span class = "stringliteral" > " Skipping unknown box: " < / span > < < FourCCToString(itr-> first);< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keyword" > delete< / span > itr-> second;< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   }< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   }< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   }< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "comment" > // static< / span > < / div >
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< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > < a class = "line" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#ae348922875d67128d2af6d88b692e205" > 37< / a > < / span >   < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html" > BoxReader< / a > * < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#ae348922875d67128d2af6d88b692e205" > BoxReader::ReadBox< / a > (< span class = "keyword" > const< / span > uint8_t* buf,< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > buf_size,< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < span class = "keywordtype" > bool< / span > * err) {< / div >
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< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   scoped_ptr< BoxReader> reader(< span class = "keyword" > new< / span > < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html" > BoxReader< / a > (buf, buf_size));< / div >
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< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "keywordflow" > if< / span > (!reader-> ReadHeader(err))< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "keywordflow" > return< / span > NULL;< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "comment" > // We don' t require the complete box to be available for MDAT box.< / span > < / div >
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< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "keywordflow" > if< / span > (reader-> type() == FOURCC_mdat)< / div >
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< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "keywordflow" > return< / span > reader.release();< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < / div >
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< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordflow" > if< / span > (reader-> size() < = buf_size)< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keywordflow" > return< / span > reader.release();< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "keywordflow" > return< / span > NULL;< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   }< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "comment" > // static< / span > < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > < a class = "line" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a6bafd9cd95a97c4c1475d1806d602ae2" > 55< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a6bafd9cd95a97c4c1475d1806d602ae2" > BoxReader::StartBox< / a > (< span class = "keyword" > const< / span > uint8_t* buf,< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > buf_size,< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   FourCC* type,< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   uint64_t* box_size,< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordtype" > bool< / span > * err) {< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html" > BoxReader< / a > reader(buf, buf_size);< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordflow" > if< / span > (!reader.ReadHeader(err))< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   *type = reader.type();< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   *box_size = reader.size();< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   }< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > < a class = "line" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#acc5a55985f95b73ac64c9eab7bd09242" > 68< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#acc5a55985f95b73ac64c9eab7bd09242" > BoxReader::ScanChildren< / a > () {< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   DCHECK(!scanned_);< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   scanned_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "keywordflow" > while< / span > (pos() < size()) {< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   scoped_ptr< BoxReader> child(< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "keyword" > new< / span > < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html" > BoxReader< / a > (& data()[pos()], size() - pos()));< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "keywordtype" > bool< / span > err;< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keywordflow" > if< / span > (!child-> ReadHeader(& err))< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   FourCC box_type = child-> type();< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keywordtype" > size_t< / span > box_size = child-> size();< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   children_.insert(std::pair< FourCC, BoxReader*> (box_type, child.release()));< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   RCHECK(< a class = "code" href = "../../d9/d13/classshaka_1_1media_1_1BufferReader.html#a2b15dfcd6ff891a9cb7b76f48d91d15d" > SkipBytes< / a > (box_size));< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   }< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   }< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > < a class = "line" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a68defcd9be85bbd5cbded3bee86aa03a" > 88< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a68defcd9be85bbd5cbded3bee86aa03a" > BoxReader::ReadChild< / a > (< a class = "code" href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html" > Box< / a > * child) {< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   DCHECK(scanned_);< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   FourCC child_type = child-> < a class = "code" href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#ac7c07671ab4c56d19e085570862015ca" > BoxType< / a > ();< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   ChildMap::iterator itr = children_.find(child_type);< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   RCHECK(itr != children_.end());< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   DVLOG(2) < < < span class = "stringliteral" > " Found a " < / span > < < FourCCToString(child_type) < < < span class = "stringliteral" > " box." < / span > ;< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   RCHECK(child-> < a class = "code" href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#a209382fcd42e82a896c29e856627ca52" > Parse< / a > (itr-> second));< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < span class = "keyword" > delete< / span > itr-> second;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   children_.erase(itr);< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   }< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > < a class = "line" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#aa65236a6b94ac59d5da409412992211c" > 101< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#aa65236a6b94ac59d5da409412992211c" > BoxReader::ChildExist< / a > (< a class = "code" href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html" > Box< / a > * child) {< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "keywordflow" > return< / span > children_.count(child-> < a class = "code" href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#ac7c07671ab4c56d19e085570862015ca" > BoxType< / a > ()) > 0;< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   }< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > < a class = "line" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a1a4457e9638e8cf3fb30b0031b513cec" > 105< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a1a4457e9638e8cf3fb30b0031b513cec" > BoxReader::TryReadChild< / a > (< a class = "code" href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html" > Box< / a > * child) {< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "keywordflow" > if< / span > (!children_.count(child-> < a class = "code" href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#ac7c07671ab4c56d19e085570862015ca" > BoxType< / a > ()))< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a68defcd9be85bbd5cbded3bee86aa03a" > ReadChild< / a > (child);< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   }< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "keywordtype" > bool< / span > BoxReader::ReadHeader(< span class = "keywordtype" > bool< / span > * err) {< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   uint64_t size = 0;< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   *err = < span class = "keyword" > false< / span > ;< / div >
2016-06-08 00:58:09 +00:00
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < / div >
2016-06-08 17:08:08 +00:00
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../d9/d13/classshaka_1_1media_1_1BufferReader.html#ac98c6631c07300a6b78ec58bfd4ced30" > ReadNBytesInto8< / a > (& size, < span class = "keyword" > sizeof< / span > (uint32_t)) || !ReadFourCC(& type_))< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "keywordflow" > if< / span > (size == 0) {< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "comment" > // Boxes that run to EOS are not supported.< / span > < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   NOTIMPLEMENTED() < < base::StringPrintf(< span class = "stringliteral" > " Box ' %s' run to EOS." < / span > ,< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   FourCCToString(type_).c_str());< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   *err = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (size == 1) {< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "keywordflow" > if< / span > (!Read8(& size))< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   }< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < span class = "comment" > // The box should have at least the size of what have been parsed.< / span > < / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < span class = "keywordflow" > if< / span > (size < pos()) {< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   LOG(ERROR) < < base::StringPrintf(< span class = "stringliteral" > " Box ' %s' with size (%" < / span > PRIu64< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < span class = "stringliteral" > " ) is invalid." < / span > ,< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   FourCCToString(type_).c_str(),< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   size);< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   *err = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   }< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < span class = "comment" > // ' mdat' box could have a 64-bit size; other boxes should be very small.< / span > < / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "keywordflow" > if< / span > (size > static_cast< uint64_t> (std::numeric_limits< int32_t> ::max()) & & < / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   type_ != FOURCC_mdat) {< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   LOG(ERROR) < < base::StringPrintf(< span class = "stringliteral" > " Box ' %s' size (%" < / span > PRIu64< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "stringliteral" > " ) is too large." < / span > ,< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   FourCCToString(type_).c_str(),< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   size);< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   *err = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   }< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "comment" > // Note that the pos_ head has advanced to the byte immediately after the< / span > < / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "comment" > // header, which is where we want it.< / span > < / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   set_size(size);< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   }< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   } < span class = "comment" > // namespace mp4< / span > < / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1mp4_1_1Box_html_ac7c07671ab4c56d19e085570862015ca" > < div class = "ttname" > < a href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#ac7c07671ab4c56d19e085570862015ca" > shaka::media::mp4::Box::BoxType< / a > < / div > < div class = "ttdeci" > virtual FourCC BoxType() const =0< / div > < / div >
2016-06-08 17:08:08 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html_acc5a55985f95b73ac64c9eab7bd09242" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#acc5a55985f95b73ac64c9eab7bd09242" > shaka::media::mp4::BoxReader::ScanChildren< / a > < / div > < div class = "ttdeci" > bool ScanChildren() WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d3/df1/box__reader_8cc_source.html#l00068" > box_reader.cc:68< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1BufferReader_html_ac98c6631c07300a6b78ec58bfd4ced30" > < div class = "ttname" > < a href = "../../d9/d13/classshaka_1_1media_1_1BufferReader.html#ac98c6631c07300a6b78ec58bfd4ced30" > shaka::media::BufferReader::ReadNBytesInto8< / a > < / div > < div class = "ttdeci" > bool ReadNBytesInto8(uint64_t *v, size_t num_bytes) WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dd/dbc/buffer__reader_8cc_source.html#l00040" > buffer_reader.cc:40< / a > < / div > < / div >
< div class = "ttc" id = "structshaka_1_1media_1_1mp4_1_1Box_html" > < div class = "ttname" > < a href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html" > shaka::media::mp4::Box< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dc/d19/box_8h_source.html#l00027" > box.h:27< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1BufferReader_html_a2b15dfcd6ff891a9cb7b76f48d91d15d" > < div class = "ttname" > < a href = "../../d9/d13/classshaka_1_1media_1_1BufferReader.html#a2b15dfcd6ff891a9cb7b76f48d91d15d" > shaka::media::BufferReader::SkipBytes< / a > < / div > < div class = "ttdeci" > bool SkipBytes(size_t num_bytes) WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dd/dbc/buffer__reader_8cc_source.html#l00065" > buffer_reader.cc:65< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html" > shaka::media::mp4::BoxReader< / a > < / div > < div class = "ttdoc" > Class for reading MP4 boxes. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d92/box__reader_8h_source.html#l00024" > box_reader.h:24< / a > < / div > < / div >
2016-06-08 17:08:08 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html_a68defcd9be85bbd5cbded3bee86aa03a" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a68defcd9be85bbd5cbded3bee86aa03a" > shaka::media::mp4::BoxReader::ReadChild< / a > < / div > < div class = "ttdeci" > bool ReadChild(Box *child) WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d3/df1/box__reader_8cc_source.html#l00088" > box_reader.cc:88< / a > < / div > < / div >
2016-05-24 23:43:16 +00:00
< div class = "ttc" id = "structshaka_1_1media_1_1mp4_1_1Box_html_a209382fcd42e82a896c29e856627ca52" > < div class = "ttname" > < a href = "../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#a209382fcd42e82a896c29e856627ca52" > shaka::media::mp4::Box::Parse< / a > < / div > < div class = "ttdeci" > bool Parse(BoxReader *reader)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/d4d/box_8cc_source.html#l00019" > box.cc:19< / a > < / div > < / div >
2016-06-08 17:08:08 +00:00
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html_a1a4457e9638e8cf3fb30b0031b513cec" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a1a4457e9638e8cf3fb30b0031b513cec" > shaka::media::mp4::BoxReader::TryReadChild< / a > < / div > < div class = "ttdeci" > bool TryReadChild(Box *child) WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d3/df1/box__reader_8cc_source.html#l00105" > box_reader.cc:105< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html_a6bafd9cd95a97c4c1475d1806d602ae2" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a6bafd9cd95a97c4c1475d1806d602ae2" > shaka::media::mp4::BoxReader::StartBox< / a > < / div > < div class = "ttdeci" > static bool StartBox(const uint8_t *buf, const size_t buf_size, FourCC *type, uint64_t *box_size, bool *err) WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d3/df1/box__reader_8cc_source.html#l00055" > box_reader.cc:55< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html_aa65236a6b94ac59d5da409412992211c" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#aa65236a6b94ac59d5da409412992211c" > shaka::media::mp4::BoxReader::ChildExist< / a > < / div > < div class = "ttdeci" > bool ChildExist(Box *child) WARN_UNUSED_RESULT< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d3/df1/box__reader_8cc_source.html#l00101" > box_reader.cc:101< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1mp4_1_1BoxReader_html_ae348922875d67128d2af6d88b692e205" > < div class = "ttname" > < a href = "../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#ae348922875d67128d2af6d88b692e205" > shaka::media::mp4::BoxReader::ReadBox< / a > < / div > < div class = "ttdeci" > static BoxReader * ReadBox(const uint8_t *buf, const size_t buf_size, bool *err)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d3/df1/box__reader_8cc_source.html#l00037" > box_reader.cc:37< / a > < / div > < / div >
2015-10-16 00:33:37 +00:00
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2016-08-18 21:18:15 +00:00
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2015-10-16 00:33:37 +00:00
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