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<div class="title">local_file.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 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<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>
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<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>
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<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>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/media/file/local_file.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <stdio.h></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#if defined(OS_WIN)</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor"></span><span class="preprocessor">#include <windows.h></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#endif // defined(OS_WIN)</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor"></span><span class="preprocessor">#include "packager/base/files/file_util.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<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>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// Always open files in binary mode.</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">const</span> <span class="keywordtype">char</span> kAdditionalFileMode[] = <span class="stringliteral">"b"</span>;</div>
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<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"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#abb25b0c4dae0509458507d9afb83da0d"> 22</a></span> <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#abb25b0c4dae0509458507d9afb83da0d">LocalFile::LocalFile</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* file_name, <span class="keyword">const</span> <span class="keywordtype">char</span>* mode)</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  : <a class="code" href="../../d3/d61/classshaka_1_1media_1_1File.html">File</a>(file_name),</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  file_mode_(mode),</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  internal_file_(NULL) {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">if</span> (file_mode_.find(kAdditionalFileMode) == std::string::npos)</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  file_mode_ += kAdditionalFileMode;</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> }</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a8bc11d5bf5ee05904620ab3816c6eaf4"> 30</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a8bc11d5bf5ee05904620ab3816c6eaf4">LocalFile::Close</a>() {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordtype">bool</span> result = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">if</span> (internal_file_) {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  result = base::CloseFile(internal_file_);</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  internal_file_ = NULL;</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  }</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">delete</span> <span class="keyword">this</span>;</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> }</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a65a1abae386202a08deb5bfa8aeef7c1"> 40</a></span> int64_t <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a65a1abae386202a08deb5bfa8aeef7c1">LocalFile::Read</a>(<span class="keywordtype">void</span>* buffer, uint64_t length) {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  DCHECK(buffer != NULL);</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  DCHECK(internal_file_ != NULL);</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> fread(buffer, <span class="keyword">sizeof</span>(<span class="keywordtype">char</span>), length, internal_file_);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ac23125695f0cfe77adee36df9650da8b"> 46</a></span> int64_t <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ac23125695f0cfe77adee36df9650da8b">LocalFile::Write</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* buffer, uint64_t length) {</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  DCHECK(buffer != NULL);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  DCHECK(internal_file_ != NULL);</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> fwrite(buffer, <span class="keyword">sizeof</span>(<span class="keywordtype">char</span>), length, internal_file_);</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div>
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<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="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a4cc3427bb01a0989de7711b2a004a099"> 52</a></span> int64_t <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a4cc3427bb01a0989de7711b2a004a099">LocalFile::Size</a>() {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  DCHECK(internal_file_ != NULL);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// Flush any buffered data, so we get the true file size.</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ad09f01654ef3109b66e3fb5dd9730516">Flush</a>()) {</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  LOG(ERROR) << <span class="stringliteral">"Cannot flush file."</span>;</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> -1;</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  int64_t file_size;</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (!base::GetFileSize(base::FilePath::FromUTF8Unsafe(<a class="code" href="../../d3/d61/classshaka_1_1media_1_1File.html#abe158b9e7b1e073956a16c55a8fcf5f4">file_name</a>()),</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  &file_size)) {</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  LOG(ERROR) << <span class="stringliteral">"Cannot get file size."</span>;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> -1;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> file_size;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> }</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
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<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ad09f01654ef3109b66e3fb5dd9730516"> 70</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ad09f01654ef3109b66e3fb5dd9730516">LocalFile::Flush</a>() {</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  DCHECK(internal_file_ != NULL);</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> ((fflush(internal_file_) == 0) && !ferror(internal_file_));</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> }</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a6cb6e6bf3a47fbcda6d759ff4f551939"> 75</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a6cb6e6bf3a47fbcda6d759ff4f551939">LocalFile::Seek</a>(uint64_t position) {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#if defined(OS_WIN)</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> _fseeki64(internal_file_, static_cast<__int64>(position),</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  SEEK_SET) == 0;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor">#else</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> fseeko(internal_file_, position, SEEK_SET) >= 0;</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#endif // !defined(OS_WIN)</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"></span>}</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ad8dd99ee399830616cd23869ed35d768"> 84</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ad8dd99ee399830616cd23869ed35d768">LocalFile::Tell</a>(uint64_t* position) {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#if defined(OS_WIN)</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span> __int64 offset = _ftelli64(internal_file_);</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#else</span></div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor"></span> off_t offset = ftello(internal_file_);</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#endif // !defined(OS_WIN)</span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (offset < 0)</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  *position = <span class="keyword">static_cast<</span>uint64_t<span class="keyword">></span>(offset);</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> }</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> LocalFile::~LocalFile() {}</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a73844c50f00e8427233038abf45425a7"> 98</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a73844c50f00e8427233038abf45425a7">LocalFile::Open</a>() {</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  internal_file_ =</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  base::OpenFile(base::FilePath::FromUTF8Unsafe(<a class="code" href="../../d3/d61/classshaka_1_1media_1_1File.html#abe158b9e7b1e073956a16c55a8fcf5f4">file_name</a>()), file_mode_.c_str());</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> (internal_file_ != NULL);</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
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<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#aab9c8faf7e459f38e2f8fb2d63e5bd59"> 104</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#aab9c8faf7e459f38e2f8fb2d63e5bd59">LocalFile::Delete</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* file_name) {</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> base::DeleteFile(base::FilePath::FromUTF8Unsafe(file_name), <span class="keyword">false</span>);</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> }</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> } <span class="comment">// namespace shaka</span></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_a65a1abae386202a08deb5bfa8aeef7c1"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a65a1abae386202a08deb5bfa8aeef7c1">shaka::media::LocalFile::Read</a></div><div class="ttdeci">int64_t Read(void *buffer, uint64_t length) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00040">local_file.cc:40</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_a8bc11d5bf5ee05904620ab3816c6eaf4"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a8bc11d5bf5ee05904620ab3816c6eaf4">shaka::media::LocalFile::Close</a></div><div class="ttdeci">bool Close() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00030">local_file.cc:30</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_a6cb6e6bf3a47fbcda6d759ff4f551939"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a6cb6e6bf3a47fbcda6d759ff4f551939">shaka::media::LocalFile::Seek</a></div><div class="ttdeci">bool Seek(uint64_t position) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00075">local_file.cc:75</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1File_html"><div class="ttname"><a href="../../d3/d61/classshaka_1_1media_1_1File.html">shaka::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#l00024">file.h:24</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_abb25b0c4dae0509458507d9afb83da0d"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#abb25b0c4dae0509458507d9afb83da0d">shaka::media::LocalFile::LocalFile</a></div><div class="ttdeci">LocalFile(const char *file_name, const char *mode)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00022">local_file.cc:22</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_ad8dd99ee399830616cd23869ed35d768"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ad8dd99ee399830616cd23869ed35d768">shaka::media::LocalFile::Tell</a></div><div class="ttdeci">bool Tell(uint64_t *position) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00084">local_file.cc:84</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_ac23125695f0cfe77adee36df9650da8b"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ac23125695f0cfe77adee36df9650da8b">shaka::media::LocalFile::Write</a></div><div class="ttdeci">int64_t Write(const void *buffer, uint64_t length) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00046">local_file.cc:46</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1File_html_abe158b9e7b1e073956a16c55a8fcf5f4"><div class="ttname"><a href="../../d3/d61/classshaka_1_1media_1_1File.html#abe158b9e7b1e073956a16c55a8fcf5f4">shaka::media::File::file_name</a></div><div class="ttdeci">const std::string & file_name() const </div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d4d/file_8h_source.html#l00091">file.h:91</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_a73844c50f00e8427233038abf45425a7"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a73844c50f00e8427233038abf45425a7">shaka::media::LocalFile::Open</a></div><div class="ttdeci">bool Open() override</div><div class="ttdoc">Internal open. Should not be used directly. </div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00098">local_file.cc:98</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_ad09f01654ef3109b66e3fb5dd9730516"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#ad09f01654ef3109b66e3fb5dd9730516">shaka::media::LocalFile::Flush</a></div><div class="ttdeci">bool Flush() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00070">local_file.cc:70</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_a4cc3427bb01a0989de7711b2a004a099"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#a4cc3427bb01a0989de7711b2a004a099">shaka::media::LocalFile::Size</a></div><div class="ttdeci">int64_t Size() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00052">local_file.cc:52</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1LocalFile_html_aab9c8faf7e459f38e2f8fb2d63e5bd59"><div class="ttname"><a href="../../d9/de6/classshaka_1_1media_1_1LocalFile.html#aab9c8faf7e459f38e2f8fb2d63e5bd59">shaka::media::LocalFile::Delete</a></div><div class="ttdeci">static bool Delete(const char *file_name)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de8/local__file_8cc_source.html#l00104">local_file.cc:104</a></div></div>
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