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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> </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/files/file_util.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"><a class="line" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a0167e3eb79bc5f86cb1484b8da828fcc"> 17</a></span> <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a0167e3eb79bc5f86cb1484b8da828fcc">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="l00018"></a><span class="lineno"> 18</span>  : <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>(file_name), file_mode_(mode), internal_file_(NULL) {}</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"><a class="line" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#ad8bcb9e07851a62c6440458ef2c31e4f"> 20</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#ad8bcb9e07851a62c6440458ef2c31e4f">LocalFile::Close</a>() {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keywordtype">bool</span> result = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordflow">if</span> (internal_file_) {</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  result = base::CloseFile(internal_file_);</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  internal_file_ = NULL;</div>
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<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"> 26</span>  <span class="keyword">delete</span> <span class="keyword">this</span>;</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">return</span> result;</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="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#ab974c5c7fd38d9fe184bf055173fd8cf"> 30</a></span> int64_t <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#ab974c5c7fd38d9fe184bf055173fd8cf">LocalFile::Read</a>(<span class="keywordtype">void</span>* buffer, uint64_t length) {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  DCHECK(buffer != NULL);</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  DCHECK(internal_file_ != NULL);</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</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="l00034"></a><span class="lineno"> 34</span> }</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"><a class="line" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a3a1ae071948947e9885b8afd4e5eebb4"> 36</a></span> int64_t <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a3a1ae071948947e9885b8afd4e5eebb4">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="l00037"></a><span class="lineno"> 37</span>  DCHECK(buffer != NULL);</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  DCHECK(internal_file_ != NULL);</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</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="l00040"></a><span class="lineno"> 40</span> }</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a8984949196dc5230a8ece08c738a9fd3"> 42</a></span> int64_t <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a8984949196dc5230a8ece08c738a9fd3">LocalFile::Size</a>() {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  DCHECK(internal_file_ != NULL);</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>  <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="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a4ab0f69a137a370d49005a1c9f13259d">Flush</a>()) {</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  LOG(ERROR) << <span class="stringliteral">"Cannot flush file."</span>;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> -1;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</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>  int64_t file_size;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> (!base::GetFileSize(base::FilePath(<a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#ad736ca7bb8da1cec749f51275a87872c">file_name</a>()), &file_size)) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  LOG(ERROR) << <span class="stringliteral">"Cannot get file size."</span>;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> -1;</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  }</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> file_size;</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> }</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a4ab0f69a137a370d49005a1c9f13259d"> 59</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a4ab0f69a137a370d49005a1c9f13259d">LocalFile::Flush</a>() {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  DCHECK(internal_file_ != NULL);</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">return</span> ((fflush(internal_file_) == 0) && !ferror(internal_file_));</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
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<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a31ed97a6c4a45bb9d80f55dc444aba35"> 64</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a31ed97a6c4a45bb9d80f55dc444aba35">LocalFile::Seek</a>(uint64_t position) {</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> fseeko(internal_file_, position, SEEK_SET) >= 0;</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> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a4151ac1c3198e4037292040bb7f2504b"> 68</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a4151ac1c3198e4037292040bb7f2504b">LocalFile::Tell</a>(uint64_t* position) {</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  off_t offset = ftello(internal_file_);</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> (offset < 0)</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  *position = offset;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> <span class="keyword">true</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"> 75</span> </div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> LocalFile::~LocalFile() {}</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
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<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a74829bb7ba2e219ab2d3137917c55271"> 78</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a74829bb7ba2e219ab2d3137917c55271">LocalFile::Open</a>() {</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  internal_file_ =</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  base::OpenFile(base::FilePath(<a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#ad736ca7bb8da1cec749f51275a87872c">file_name</a>()), file_mode_.c_str());</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> (internal_file_ != NULL);</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</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="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a95e4a5eff87224c9a156b5e2c7824cb9"> 84</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a95e4a5eff87224c9a156b5e2c7824cb9">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="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> base::DeleteFile(base::FilePath(file_name), <span class="keyword">false</span>);</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> }</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> } <span class="comment">// namespace edash_packager</span></div>
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<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#l00022">file.h:22</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_a0167e3eb79bc5f86cb1484b8da828fcc"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a0167e3eb79bc5f86cb1484b8da828fcc">edash_packager::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#l00017">local_file.cc:17</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_a4151ac1c3198e4037292040bb7f2504b"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a4151ac1c3198e4037292040bb7f2504b">edash_packager::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#l00068">local_file.cc:68</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1File_html_ad736ca7bb8da1cec749f51275a87872c"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#ad736ca7bb8da1cec749f51275a87872c">edash_packager::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#l00089">file.h:89</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_a4ab0f69a137a370d49005a1c9f13259d"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a4ab0f69a137a370d49005a1c9f13259d">edash_packager::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#l00059">local_file.cc:59</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_a8984949196dc5230a8ece08c738a9fd3"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a8984949196dc5230a8ece08c738a9fd3">edash_packager::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#l00042">local_file.cc:42</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_a3a1ae071948947e9885b8afd4e5eebb4"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a3a1ae071948947e9885b8afd4e5eebb4">edash_packager::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#l00036">local_file.cc:36</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_ab974c5c7fd38d9fe184bf055173fd8cf"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#ab974c5c7fd38d9fe184bf055173fd8cf">edash_packager::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#l00030">local_file.cc:30</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_a31ed97a6c4a45bb9d80f55dc444aba35"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a31ed97a6c4a45bb9d80f55dc444aba35">edash_packager::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#l00064">local_file.cc:64</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_a95e4a5eff87224c9a156b5e2c7824cb9"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a95e4a5eff87224c9a156b5e2c7824cb9">edash_packager::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#l00084">local_file.cc:84</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_a74829bb7ba2e219ab2d3137917c55271"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a74829bb7ba2e219ab2d3137917c55271">edash_packager::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#l00078">local_file.cc:78</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1LocalFile_html_ad8bcb9e07851a62c6440458ef2c31e4f"><div class="ttname"><a href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#ad8bcb9e07851a62c6440458ef2c31e4f">edash_packager::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#l00020">local_file.cc:20</a></div></div>
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