2016-10-31 21:08:55 +00:00
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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_279fd47bebb21302c25cfb685e84c359.html" > file< / a > < / li > < / ul >
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< div class = "title" > udp_options.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 2016 Google Inc. All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // Use of this source code is governed by a BSD-style< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > // license that can be found in the LICENSE file or at< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > // https://developers.google.com/open-source/licenses/bsd< / 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 " packager/media/file/udp_options.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 < gflags/gflags.h> < / 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/strings/string_number_conversions.h" < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/base/strings/string_split.h" < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   DEFINE_string(udp_interface_address,< / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "stringliteral" > " " < / span > ,< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "stringliteral" > " IP address of the interface over which to receive UDP unicast" < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "stringliteral" > " or multicast streams" < / 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 >   < span class = "keyword" > namespace < / span > shaka {< / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "keyword" > enum< / span > FieldType {< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   kUnknownField = 0,< / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   kReuseField,< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   kInterfaceAddressField,< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   kTimeoutField,< / 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 >   < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keyword" > struct < / span > FieldNameToTypeMapping {< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > * field_name;< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   FieldType field_type;< / 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 = "keyword" > const< / span > FieldNameToTypeMapping kFieldNameTypeMappings[] = {< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   {< span class = "stringliteral" > " reuse" < / span > , kReuseField},< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   {< span class = "stringliteral" > " interface" < / span > , kInterfaceAddressField},< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   {< span class = "stringliteral" > " source" < / span > , kInterfaceAddressField},< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   {< span class = "stringliteral" > " timeout" < / span > , kTimeoutField},< / 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 >   < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   FieldType GetFieldType(< span class = "keyword" > const< / span > std::string& field_name) {< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > idx = 0; idx < arraysize(kFieldNameTypeMappings); ++idx) {< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "keywordflow" > if< / span > (field_name == kFieldNameTypeMappings[idx].field_name)< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "keywordflow" > return< / span > kFieldNameTypeMappings[idx].field_type;< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   }< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordflow" > return< / span > kUnknownField;< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   }< / 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 = "keywordtype" > bool< / span > StringToAddressAndPort(base::StringPiece addr_and_port,< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   std::string* addr,< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   uint16_t* port) {< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   DCHECK(addr);< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   DCHECK(port);< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > colon_pos = addr_and_port.find(< span class = "charliteral" > ' :' < / span > );< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keywordflow" > if< / span > (colon_pos == base::StringPiece::npos) {< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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 >   *addr = addr_and_port.substr(0, colon_pos).as_string();< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "keywordtype" > unsigned< / span > port_value;< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "keywordflow" > if< / span > (!base::StringToUint(addr_and_port.substr(colon_pos + 1), & port_value) ||< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   (port_value > 65535)) {< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / 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 >   *port = port_value;< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   }< / 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 = "comment" > // namespace< / 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" > < a class = "line" href = "../../d4/d8e/classshaka_1_1media_1_1UdpOptions.html#a0f105a42c4f852f083827892138a4f25" > 73< / a > < / span >   std::unique_ptr< UdpOptions> < a class = "code" href = "../../d4/d8e/classshaka_1_1media_1_1UdpOptions.html#a0f105a42c4f852f083827892138a4f25" > UdpOptions::ParseFromString< / a > (< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   base::StringPiece udp_url) {< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   std::unique_ptr< UdpOptions> options(< span class = "keyword" > new< / span > < a class = "code" href = "../../d4/d8e/classshaka_1_1media_1_1UdpOptions.html" > UdpOptions< / a > );< / 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 >   < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > question_mark_pos = udp_url.find(< span class = "charliteral" > ' ?' < / span > );< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   base::StringPiece address_str = udp_url.substr(0, question_mark_pos);< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keywordflow" > if< / span > (question_mark_pos != base::StringPiece::npos) {< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   base::StringPiece options_str = udp_url.substr(question_mark_pos + 1);< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   base::StringPairs pairs;< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "keywordflow" > if< / span > (!base::SplitStringIntoKeyValuePairs(options_str, < span class = "charliteral" > ' =' < / span > , < span class = "charliteral" > ' & ' < / span > , & pairs)) {< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Invalid udp options name/value pairs " < / span > < < options_str;< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / 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" > 88< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & pair : pairs) {< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "keywordflow" > switch< / span > (GetFieldType(pair.first)) {< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "keywordflow" > case< / span > kReuseField: {< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "keywordtype" > int< / span > reuse_value = 0;< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "keywordflow" > if< / span > (!base::StringToInt(pair.second, & reuse_value)) {< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Invalid udp option for reuse field " < / span > < < pair.second;< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   }< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   options-> reuse_ = reuse_value > 0;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   }< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "keywordflow" > case< / span > kInterfaceAddressField:< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   options-> interface_address_ = pair.second;< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "keywordflow" > case< / span > kTimeoutField:< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < span class = "keywordflow" > if< / span > (!base::StringToUint(pair.second, & options-> timeout_us_)) {< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Invalid udp option for timeout field " < / span > < < pair.second;< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   }< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Unknown field in udp options (\" " < / span > < < pair.first< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < < < span class = "stringliteral" > " \" )." < / span > ;< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   }< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   }< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   }< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "keywordflow" > if< / span > (!FLAGS_udp_interface_address.empty()) {< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   LOG(WARNING) < < < span class = "stringliteral" > " --udp_interface_address is deprecated. Consider switching " < / span > < / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "stringliteral" > " to udp options instead, something like " < / span > < / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "stringliteral" > " udp:://ip:port?interface=interface_ip." < / span > ;< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   options-> interface_address_ = FLAGS_udp_interface_address;< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   }< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "keywordflow" > if< / span > (!StringToAddressAndPort(address_str, & options-> address_,< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   & options-> port_)) {< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   LOG(ERROR) < < < span class = "stringliteral" > " Malformed address:port UDP url " < / span > < < address_str;< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / 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 >   < span class = "keywordflow" > return< / span > options;< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   }< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1UdpOptions_html" > < div class = "ttname" > < a href = "../../d4/d8e/classshaka_1_1media_1_1UdpOptions.html" > shaka::media::UdpOptions< / a > < / div > < div class = "ttdoc" > Options parsed from UDP url string of the form: udp://ip:port[?options]. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../de/dbf/udp__options_8h_source.html#l00016" > udp_options.h:16< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1UdpOptions_html_a0f105a42c4f852f083827892138a4f25" > < div class = "ttname" > < a href = "../../d4/d8e/classshaka_1_1media_1_1UdpOptions.html#a0f105a42c4f852f083827892138a4f25" > shaka::media::UdpOptions::ParseFromString< / a > < / div > < div class = "ttdeci" > static std::unique_ptr< UdpOptions > ParseFromString(base::StringPiece udp_url)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../da/d1d/udp__options_8cc_source.html#l00073" > udp_options.cc:73< / a > < / div > < / div >
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