2017-01-26 19:23:57 +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_c6ada2450b25ab5438a4dba6c9b890af.html" > base< / a > < / li > < / ul >
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< div class = "title" > media_handler.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 2017 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/base/media_handler.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 = "keyword" > namespace < / span > shaka {< / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#aced66ff3e906e7dd45f1f3771d61edd7" > 12< / a > < / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#aced66ff3e906e7dd45f1f3771d61edd7" > MediaHandler::SetHandler< / a > (< span class = "keywordtype" > int< / span > output_stream_index,< / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   std::shared_ptr< MediaHandler> handler) {< / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#a7b61972eedda125b436dc4d26f88c1e6" > ValidateOutputStreamIndex< / a > (output_stream_index))< / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > (error::INVALID_ARGUMENT, < span class = "stringliteral" > " Invalid output stream index" < / span > );< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "keywordflow" > if< / span > (output_handlers_.find(output_stream_index) != output_handlers_.end()) {< / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > (error::ALREADY_EXISTS,< / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "stringliteral" > " The handler at the specified index already exists." < / span > );< / 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 >   output_handlers_[output_stream_index] =< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   std::make_pair(handler, handler-> num_input_streams_++);< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   next_output_stream_index_ = output_stream_index + 1;< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / 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 >
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< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#aed0da512bbd998ec9d0a5c019ad17acb" > 26< / a > < / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#aed0da512bbd998ec9d0a5c019ad17acb" > MediaHandler::Initialize< / a > () {< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keywordflow" > if< / span > (initialized_)< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > status = < a class = "code" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#a0e05325d62bfb66318301c1ed790a46e" > InitializeInternal< / a > ();< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "keywordflow" > if< / span > (!status.ok())< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > auto< / span > & pair : output_handlers_) {< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   status = pair.second.first-> Initialize();< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "keywordflow" > if< / span > (!status.ok())< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "keywordflow" > return< / span > status;< / 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 >   initialized_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "keywordflow" > return< / span > Status::OK;< / div >
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< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   }< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < / div >
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< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#ae7b4b8f83bf00b3bac0441f3fd991d4b" > 41< / a > < / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#ae7b4b8f83bf00b3bac0441f3fd991d4b" > MediaHandler::FlushStream< / a > (< span class = "keywordtype" > int< / span > input_stream_index) {< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "comment" > // The default implementation treats the output stream index to be identical< / span > < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "comment" > // to the input stream index, which is true for most handlers.< / span > < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "keyword" > auto< / span > handler_it = output_handlers_.find(input_stream_index);< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "keywordflow" > if< / span > (handler_it == output_handlers_.end()) {< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > (error::NOT_FOUND,< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "stringliteral" > " No output handler exist at the specified index." < / span > );< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   }< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keywordflow" > return< / span > handler_it-> second.first-> FlushStream(handler_it-> second.second);< / div >
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< 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 >   < / div >
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< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > < a class = "line" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#a7b61972eedda125b436dc4d26f88c1e6" > 52< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#a7b61972eedda125b436dc4d26f88c1e6" > MediaHandler::ValidateOutputStreamIndex< / a > (< span class = "keywordtype" > int< / span > stream_index)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "keywordflow" > return< / span > stream_index > = 0 & & stream_index < num_input_streams_;< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / 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" > < a class = "line" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#accd62dd4def920571f95f4e1a98ab7ca" > 56< / a > < / span >   < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > < a class = "code" href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#accd62dd4def920571f95f4e1a98ab7ca" > MediaHandler::Dispatch< / a > (std::unique_ptr< StreamData> stream_data) {< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keywordtype" > int< / span > output_stream_index = stream_data-> stream_index;< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keyword" > auto< / span > handler_it = output_handlers_.find(output_stream_index);< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordflow" > if< / span > (handler_it == output_handlers_.end()) {< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > Status< / a > (error::NOT_FOUND,< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "stringliteral" > " No output handler exist at the specified index." < / span > );< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   }< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   stream_data-> stream_index = handler_it-> second.second;< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keywordflow" > return< / span > handler_it-> second.first-> Process(std::move(stream_data));< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / 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 = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
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< div class = "ttc" id = "classshaka_1_1media_1_1MediaHandler_html_aced66ff3e906e7dd45f1f3771d61edd7" > < div class = "ttname" > < a href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#aced66ff3e906e7dd45f1f3771d61edd7" > shaka::media::MediaHandler::SetHandler< / a > < / div > < div class = "ttdeci" > Status SetHandler(int output_stream_index, std::shared_ptr< MediaHandler > handler)< / div > < div class = "ttdoc" > Connect downstream handler at the specified output stream index. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/de9/media__handler_8cc_source.html#l00012" > media_handler.cc:12< / a > < / div > < / div >
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< div class = "ttc" id = "classshaka_1_1media_1_1MediaHandler_html_a0e05325d62bfb66318301c1ed790a46e" > < div class = "ttname" > < a href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#a0e05325d62bfb66318301c1ed790a46e" > shaka::media::MediaHandler::InitializeInternal< / a > < / div > < div class = "ttdeci" > virtual Status InitializeInternal()=0< / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1MediaHandler_html_accd62dd4def920571f95f4e1a98ab7ca" > < div class = "ttname" > < a href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#accd62dd4def920571f95f4e1a98ab7ca" > shaka::media::MediaHandler::Dispatch< / a > < / div > < div class = "ttdeci" > Status Dispatch(std::unique_ptr< StreamData > stream_data)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/de9/media__handler_8cc_source.html#l00056" > media_handler.cc:56< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1MediaHandler_html_a7b61972eedda125b436dc4d26f88c1e6" > < div class = "ttname" > < a href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#a7b61972eedda125b436dc4d26f88c1e6" > shaka::media::MediaHandler::ValidateOutputStreamIndex< / a > < / div > < div class = "ttdeci" > virtual bool ValidateOutputStreamIndex(int stream_index) const < / div > < div class = "ttdoc" > Validate if the stream at the specified index actually exists. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/de9/media__handler_8cc_source.html#l00052" > media_handler.cc:52< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1MediaHandler_html_ae7b4b8f83bf00b3bac0441f3fd991d4b" > < div class = "ttname" > < a href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#ae7b4b8f83bf00b3bac0441f3fd991d4b" > shaka::media::MediaHandler::FlushStream< / a > < / div > < div class = "ttdeci" > virtual Status FlushStream(int input_stream_index)< / div > < div class = "ttdoc" > Flush the stream at the specified input stream index. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/de9/media__handler_8cc_source.html#l00041" > media_handler.cc:41< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1Status_html" > < div class = "ttname" > < a href = "../../d0/d93/classshaka_1_1media_1_1Status.html" > shaka::media::Status< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d1/d13/status_8h_source.html#l00082" > status.h:82< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1MediaHandler_html_aed0da512bbd998ec9d0a5c019ad17acb" > < div class = "ttname" > < a href = "../../da/dfd/classshaka_1_1media_1_1MediaHandler.html#aed0da512bbd998ec9d0a5c019ad17acb" > shaka::media::MediaHandler::Initialize< / a > < / div > < div class = "ttdeci" > Status Initialize()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/de9/media__handler_8cc_source.html#l00026" > media_handler.cc:26< / a > < / div > < / div >
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