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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_5039d854a18988ed1f1dbebc120ffbf7.html" > webm< / a > < / li > < / ul >
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< div class = "title" > webm_webvtt_parser.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 2014 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/webm/webm_webvtt_parser.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 = "keyword" > namespace < / span > edash_packager {< / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < / div >
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< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > < a class = "line" href = "../../dc/dc8/classedash__packager_1_1media_1_1WebMWebVTTParser.html#a979168b11e59b863de2d3ba3fbb60815" > 10< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../dc/dc8/classedash__packager_1_1media_1_1WebMWebVTTParser.html#a979168b11e59b863de2d3ba3fbb60815" > WebMWebVTTParser::Parse< / a > (< span class = "keyword" > const< / span > uint8_t* payload,< / div >
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< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "keywordtype" > int< / span > payload_size,< / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   std::string* < span class = "keywordtype" > id< / span > ,< / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   std::string* settings,< / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   std::string* content) {< / div >
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< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < a class = "code" href = "../../dc/dc8/classedash__packager_1_1media_1_1WebMWebVTTParser.html" > WebMWebVTTParser< / a > parser(payload, payload_size);< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   parser.< a class = "code" href = "../../dc/dc8/classedash__packager_1_1media_1_1WebMWebVTTParser.html#a979168b11e59b863de2d3ba3fbb60815" > Parse< / a > (< span class = "keywordtype" > id< / span > , settings, content);< / div >
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< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   }< / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   WebMWebVTTParser::WebMWebVTTParser(< span class = "keyword" > const< / span > uint8_t* payload, < span class = "keywordtype" > int< / span > payload_size)< / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   : ptr_(payload), ptr_end_(payload + payload_size) {}< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < / div >
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< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../dc/dc8/classedash__packager_1_1media_1_1WebMWebVTTParser.html#a979168b11e59b863de2d3ba3fbb60815" > WebMWebVTTParser::Parse< / a > (std::string* < span class = "keywordtype" > id< / span > ,< / div >
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< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   std::string* settings,< / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   std::string* content) {< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   ParseLine(< span class = "keywordtype" > id< / span > );< / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   ParseLine(settings);< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   content-> assign(ptr_, ptr_end_);< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   }< / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "keywordtype" > bool< / span > WebMWebVTTParser::GetByte(uint8_t* byte) {< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keywordflow" > if< / span > (ptr_ > = ptr_end_)< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ; < span class = "comment" > // indicates end-of-stream< / 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 >   *byte = *ptr_++;< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   }< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "keywordtype" > void< / span > WebMWebVTTParser::UngetByte() {< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   --ptr_;< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   }< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "keywordtype" > void< / span > WebMWebVTTParser::ParseLine(std::string* line) {< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   line-> clear();< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "comment" > // Consume characters from the stream, until we reach end-of-line.< / span > < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "comment" > // The WebVTT spec states that lines may be terminated in any of the following< / span > < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "comment" > // three ways:< / span > < / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "comment" > // LF< / span > < / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "comment" > // CR< / span > < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "comment" > // CR LF< / span > < / 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 >   < span class = "comment" > // The spec is here:< / span > < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "comment" > // http://wiki.webmproject.org/webm-metadata/temporal-metadata/webvtt-in-webm< / span > < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keyword" > enum< / span > {< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   kLF = < span class = "stringliteral" > ' \x0A' < / span > ,< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   kCR = < span class = "stringliteral" > ' \x0D' < / span > < / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   };< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordflow" > for< / span > (;;) {< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   uint8_t byte;< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keywordflow" > if< / span > (!GetByte(& byte) || byte == kLF)< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordflow" > return< / 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 >   < span class = "keywordflow" > if< / span > (byte == kCR) {< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "keywordflow" > if< / span > (GetByte(& byte) & & byte != kLF)< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   UngetByte();< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   }< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   line-> push_back(byte);< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   }< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   }< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   } < span class = "comment" > // namespace edash_packager< / span > < / div >
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< div class = "ttc" id = "classedash__packager_1_1media_1_1WebMWebVTTParser_html" > < div class = "ttname" > < a href = "../../dc/dc8/classedash__packager_1_1media_1_1WebMWebVTTParser.html" > edash_packager::media::WebMWebVTTParser< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../dd/dbf/webm__webvtt__parser_8h_source.html#l00017" > webm_webvtt_parser.h:17< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1WebMWebVTTParser_html_a979168b11e59b863de2d3ba3fbb60815" > < div class = "ttname" > < a href = "../../dc/dc8/classedash__packager_1_1media_1_1WebMWebVTTParser.html#a979168b11e59b863de2d3ba3fbb60815" > edash_packager::media::WebMWebVTTParser::Parse< / a > < / div > < div class = "ttdeci" > static void Parse(const uint8_t *payload, int payload_size, std::string *id, std::string *settings, std::string *content)< / div > < div class = "ttdoc" > Utility function to parse the WebVTT cue from a byte stream. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d5/dc1/webm__webvtt__parser_8cc_source.html#l00010" > webm_webvtt_parser.cc:10< / a > < / div > < / div >
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