195 lines
21 KiB
HTML
195 lines
21 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.6"/>
|
|
<title>DASH Media Packaging SDK: media/base/buffer_writer.cc Source File</title>
|
|
<link href="../../tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="../../jquery.js"></script>
|
|
<script type="text/javascript" src="../../dynsections.js"></script>
|
|
<link href="../../search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="../../search/search.js"></script>
|
|
<script type="text/javascript">
|
|
$(document).ready(function() { searchBox.OnSelectItem(0); });
|
|
</script>
|
|
<link href="../../doxygen.css" rel="stylesheet" type="text/css" />
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td style="padding-left: 0.5em;">
|
|
<div id="projectname">DASH Media Packaging SDK
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.6 -->
|
|
<script type="text/javascript">
|
|
var searchBox = new SearchBox("searchBox", "../../search",false,'Search');
|
|
</script>
|
|
<div id="navrow1" class="tabs">
|
|
<ul class="tablist">
|
|
<li><a href="../../index.html"><span>Main Page</span></a></li>
|
|
<li><a href="../../namespaces.html"><span>Namespaces</span></a></li>
|
|
<li><a href="../../annotated.html"><span>Classes</span></a></li>
|
|
<li class="current"><a href="../../files.html"><span>Files</span></a></li>
|
|
<li>
|
|
<div id="MSearchBox" class="MSearchBoxInactive">
|
|
<span class="left">
|
|
<img id="MSearchSelect" src="../../search/mag_sel.png"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
alt=""/>
|
|
<input type="text" id="MSearchField" value="Search" accesskey="S"
|
|
onfocus="searchBox.OnSearchFieldFocus(true)"
|
|
onblur="searchBox.OnSearchFieldFocus(false)"
|
|
onkeyup="searchBox.OnSearchFieldChange(event)"/>
|
|
</span><span class="right">
|
|
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="../../search/close.png" alt=""/></a>
|
|
</span>
|
|
</div>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
<div id="navrow2" class="tabs2">
|
|
<ul class="tablist">
|
|
<li><a href="../../files.html"><span>File List</span></a></li>
|
|
</ul>
|
|
</div>
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerator</a></div>
|
|
|
|
<!-- iframe showing the search results (closed by default) -->
|
|
<div id="MSearchResultsWindow">
|
|
<iframe src="javascript:void(0)" frameborder="0"
|
|
name="MSearchResults" id="MSearchResults">
|
|
</iframe>
|
|
</div>
|
|
|
|
<div id="nav-path" class="navpath">
|
|
<ul>
|
|
<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>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">buffer_writer.cc</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2014 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/buffer_writer.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 "packager/base/sys_byteorder.h"</span></div>
|
|
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/media/file/file.h"</span></div>
|
|
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
|
|
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="keyword">namespace </span>edash_packager {</div>
|
|
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">namespace </span>media {</div>
|
|
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
|
|
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> BufferWriter::BufferWriter() {</div>
|
|
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> kDefaultReservedCapacity = 0x40000; <span class="comment">// 256KB.</span></div>
|
|
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  buf_.reserve(kDefaultReservedCapacity);</div>
|
|
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> }</div>
|
|
<div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#abffefbaff39469927deaaa97fec636a4"> 19</a></span> BufferWriter::BufferWriter(<span class="keywordtype">size_t</span> reserved_size_in_bytes) {</div>
|
|
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  buf_.reserve(reserved_size_in_bytes);</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> BufferWriter::~BufferWriter() {}</div>
|
|
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
|
|
<div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115"> 24</a></span> <span class="keywordtype">void</span> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">BufferWriter::AppendInt</a>(uint8_t v) {</div>
|
|
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  buf_.push_back(v);</div>
|
|
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> }</div>
|
|
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keywordtype">void</span> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">BufferWriter::AppendInt</a>(uint16_t v) {</div>
|
|
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  AppendInternal(base::HostToNet16(v));</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">void</span> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">BufferWriter::AppendInt</a>(uint32_t v) {</div>
|
|
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  AppendInternal(base::HostToNet32(v));</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> <span class="keywordtype">void</span> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">BufferWriter::AppendInt</a>(uint64_t v) {</div>
|
|
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  AppendInternal(base::HostToNet64(v));</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="keywordtype">void</span> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">BufferWriter::AppendInt</a>(int16_t v) {</div>
|
|
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  AppendInternal(base::HostToNet16(v));</div>
|
|
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> }</div>
|
|
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keywordtype">void</span> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">BufferWriter::AppendInt</a>(int32_t v) {</div>
|
|
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  AppendInternal(base::HostToNet32(v));</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> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">BufferWriter::AppendInt</a>(int64_t v) {</div>
|
|
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  AppendInternal(base::HostToNet64(v));</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> </div>
|
|
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#ac929211fc97bc8ec880109775757bb81"> 46</a></span> <span class="keywordtype">void</span> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#ac929211fc97bc8ec880109775757bb81">BufferWriter::AppendNBytes</a>(uint64_t v, <span class="keywordtype">size_t</span> num_bytes) {</div>
|
|
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  DCHECK_GE(<span class="keyword">sizeof</span>(v), num_bytes);</div>
|
|
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  v = base::HostToNet64(v);</div>
|
|
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> uint8_t* data = <span class="keyword">reinterpret_cast<</span>uint8_t*<span class="keyword">></span>(&v);</div>
|
|
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  AppendArray(&data[<span class="keyword">sizeof</span>(v) - num_bytes], num_bytes);</div>
|
|
<div class="line"><a name="l00051"></a><span class="lineno"> 51</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="keywordtype">void</span> BufferWriter::AppendVector(<span class="keyword">const</span> std::vector<uint8_t>& v) {</div>
|
|
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  buf_.insert(buf_.end(), v.begin(), v.end());</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> </div>
|
|
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keywordtype">void</span> BufferWriter::AppendArray(<span class="keyword">const</span> uint8_t* buf, <span class="keywordtype">size_t</span> size) {</div>
|
|
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  buf_.insert(buf_.end(), buf, buf + size);</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="keywordtype">void</span> BufferWriter::AppendBuffer(<span class="keyword">const</span> BufferWriter& buffer) {</div>
|
|
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  buf_.insert(buf_.end(), buffer.buf_.begin(), buffer.buf_.end());</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> </div>
|
|
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#aa83fe945386e5a75d3c377904fdddce2"> 65</a></span> <a class="code" href="../../d2/d90/classedash__packager_1_1media_1_1Status.html">Status</a> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#aa83fe945386e5a75d3c377904fdddce2">BufferWriter::WriteToFile</a>(<a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>* file) {</div>
|
|
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  DCHECK(file);</div>
|
|
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  DCHECK(!buf_.empty());</div>
|
|
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
|
|
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">size_t</span> remaining_size = buf_.size();</div>
|
|
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">const</span> uint8_t* buf = &buf_[0];</div>
|
|
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">while</span> (remaining_size > 0) {</div>
|
|
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  int64_t size_written = file-><a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#ad82196743ff131dd81e8f806735eb818">Write</a>(buf, remaining_size);</div>
|
|
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">if</span> (size_written <= 0) {</div>
|
|
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/d90/classedash__packager_1_1media_1_1Status.html">Status</a>(error::FILE_FAILURE,</div>
|
|
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="stringliteral">"Fail to write to file in BufferWriter"</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>  remaining_size -= size_written;</div>
|
|
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  buf += size_written;</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>  buf_.clear();</div>
|
|
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> Status::OK;</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> </div>
|
|
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
|
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="keywordtype">void</span> BufferWriter::AppendInternal(T v) {</div>
|
|
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  AppendArray(reinterpret_cast<uint8_t*>(&v), <span class="keyword">sizeof</span>(T));</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> </div>
|
|
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> } <span class="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> } <span class="comment">// namespace edash_packager</span></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1BufferWriter_html_ac929211fc97bc8ec880109775757bb81"><div class="ttname"><a href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#ac929211fc97bc8ec880109775757bb81">edash_packager::media::BufferWriter::AppendNBytes</a></div><div class="ttdeci">void AppendNBytes(uint64_t v, size_t num_bytes)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd3/buffer__writer_8cc_source.html#l00046">buffer_writer.cc:46</a></div></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html">edash_packager::media::File</a></div><div class="ttdoc">Define an abstract file interface. </div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d4d/file_8h_source.html#l00023">file.h:23</a></div></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1Status_html"><div class="ttname"><a href="../../d2/d90/classedash__packager_1_1media_1_1Status.html">edash_packager::media::Status</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d13/status_8h_source.html#l00076">status.h:76</a></div></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1BufferWriter_html_aa83fe945386e5a75d3c377904fdddce2"><div class="ttname"><a href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#aa83fe945386e5a75d3c377904fdddce2">edash_packager::media::BufferWriter::WriteToFile</a></div><div class="ttdeci">Status WriteToFile(File *file)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd3/buffer__writer_8cc_source.html#l00065">buffer_writer.cc:65</a></div></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1BufferWriter_html_afd1449487750c41331a2d91ac417f115"><div class="ttname"><a href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">edash_packager::media::BufferWriter::AppendInt</a></div><div class="ttdeci">void AppendInt(uint8_t v)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd3/buffer__writer_8cc_source.html#l00024">buffer_writer.cc:24</a></div></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_ad82196743ff131dd81e8f806735eb818"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#ad82196743ff131dd81e8f806735eb818">edash_packager::media::File::Write</a></div><div class="ttdeci">virtual int64_t Write(const void *buffer, uint64_t length)=0</div></div>
|
|
</div><!-- fragment --></div><!-- contents -->
|
|
<!-- start footer part -->
|
|
<hr class="footer"/><address class="footer"><small>
|
|
Generated on Tue Dec 15 2015 20:37:32 for DASH Media Packaging SDK by  <a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="../../doxygen.png" alt="doxygen"/>
|
|
</a> 1.8.6
|
|
</small></address>
|
|
</body>
|
|
</html>
|