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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">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/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 <gflags/gflags.h></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/memory/scoped_ptr.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/media/file/local_file.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/media/file/threaded_io_file.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/media/file/udp_file.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/base/strings/string_util.h"</span></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"> 17</span> DEFINE_uint64(io_cache_size,</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  32ULL << 20,</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="stringliteral">"Size of the threaded I/O cache, in bytes. Specify 0 to disable "</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="stringliteral">"threaded I/O."</span>);</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> DEFINE_uint64(io_block_size,</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  2ULL << 20,</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="stringliteral">"Size of the block size used for threaded I/O, in bytes."</span>);</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* kLocalFilePrefix = <span class="stringliteral">"file://"</span>;</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* kUdpFilePrefix = <span class="stringliteral">"udp://"</span>;</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">typedef</span> File* (*FileFactoryFunction)(<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="l00034"></a><span class="lineno"> 34</span> <span class="keyword">typedef</span> bool (*FileDeleteFunction)(<span class="keyword">const</span> <span class="keywordtype">char</span>* file_name);</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">struct </span>SupportedTypeInfo {</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* type;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">size_t</span> type_length;</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">const</span> FileFactoryFunction factory_function;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">const</span> FileDeleteFunction delete_function;</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"> 42</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> File* CreateLocalFile(<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="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> LocalFile(file_name, mode);</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"> 46</span> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keywordtype">bool</span> DeleteLocalFile(<span class="keyword">const</span> <span class="keywordtype">char</span>* file_name) {</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> <a class="code" href="../../dd/d98/classedash__packager_1_1media_1_1LocalFile.html#a95e4a5eff87224c9a156b5e2c7824cb9">LocalFile::Delete</a>(file_name);</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> File* CreateUdpFile(<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="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> (base::strcasecmp(mode, <span class="stringliteral">"r"</span>)) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  NOTIMPLEMENTED() << <span class="stringliteral">"UdpFile only supports read (receive) mode."</span>;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> NULL;</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> <span class="keyword">new</span> UdpFile(file_name);</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"> 59</span> <span class="keyword">static</span> <span class="keyword">const</span> SupportedTypeInfo kSupportedTypeInfo[] = {</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>  kLocalFilePrefix,</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  strlen(kLocalFilePrefix),</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  &CreateLocalFile,</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  &DeleteLocalFile</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  },</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>  kUdpFilePrefix,</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  strlen(kUdpFilePrefix),</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  &CreateUdpFile,</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  NULL</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  },</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> };</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> } <span class="comment">// namespace</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> File* File::Create(<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="l00077"></a><span class="lineno"> 77</span>  scoped_ptr<File, FileCloser> internal_file(</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  CreateInternalFile(file_name, mode));</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">if</span> (FLAGS_io_cache_size) {</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Enable threaded I/O for "r", "w", and "a" modes only.</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">if</span> (!strcmp(mode, <span class="stringliteral">"r"</span>)) {</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> ThreadedIoFile(internal_file.Pass(),</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  ThreadedIoFile::kInputMode,</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  FLAGS_io_cache_size,</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  FLAGS_io_block_size);</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strcmp(mode, <span class="stringliteral">"w"</span>) || !strcmp(mode, <span class="stringliteral">"a"</span>)) {</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> ThreadedIoFile(internal_file.Pass(),</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  ThreadedIoFile::kOutputMode,</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  FLAGS_io_cache_size,</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  FLAGS_io_block_size);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</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>  <span class="comment">// Threaded I/O is disabled.</span></div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  DLOG(WARNING) << <span class="stringliteral">"Threaded I/O is disabled. Performance may be decreased."</span>;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> internal_file.release();</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> }</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> File* File::CreateInternalFile(<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="l00101"></a><span class="lineno"> 101</span>  scoped_ptr<File, FileCloser> internal_file;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < arraysize(kSupportedTypeInfo); ++i) {</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">const</span> SupportedTypeInfo& type_info = kSupportedTypeInfo[i];</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">if</span> (strncmp(type_info.type, file_name, type_info.type_length) == 0) {</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  internal_file.reset(type_info.factory_function(</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  file_name + type_info.type_length, mode));</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>  }</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment">// Otherwise we assume it is a local file</span></div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (!internal_file)</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  internal_file.reset(CreateLocalFile(file_name, mode));</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">return</span> internal_file.release();</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> }</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a4dfd6f4d8f67d2ee1caff4f4e1717c70"> 116</a></span> <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>* <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a0933ccd7df76fcf8fbcfe12c15dbf6c5">File::Open</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="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>* file = File::Create(file_name, mode);</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">if</span> (!file)</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> NULL;</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">if</span> (!file-><a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a4dfd6f4d8f67d2ee1caff4f4e1717c70">Open</a>()) {</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">delete</span> file;</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> NULL;</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  }</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">return</span> file;</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> }</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
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<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a47194a7cd303640c2a8b689d18ef9701"> 127</a></span> <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>* <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a47194a7cd303640c2a8b689d18ef9701">File::OpenWithNoBuffering</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="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>* file = File::CreateInternalFile(file_name, mode);</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> (!file)</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> NULL;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">if</span> (!file-><a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a4dfd6f4d8f67d2ee1caff4f4e1717c70">Open</a>()) {</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">delete</span> file;</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> NULL;</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  }</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">return</span> file;</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> }</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
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<div class="line"><a name="l00138"></a><span class="lineno"><a class="line" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a7e0fcd3c439e810e8e17baf32dcc75af"> 138</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a7e0fcd3c439e810e8e17baf32dcc75af">File::Delete</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* file_name) {</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < arraysize(kSupportedTypeInfo); ++i) {</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">const</span> SupportedTypeInfo& type_info = kSupportedTypeInfo[i];</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">if</span> (strncmp(type_info.type, file_name, type_info.type_length) == 0) {</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">return</span> type_info.delete_function ?</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  type_info.delete_function(file_name + type_info.type_length) :</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// Otherwise we assume it is a local file</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span> DeleteLocalFile(file_name);</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> }</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
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<div class="line"><a name="l00151"></a><span class="lineno"><a class="line" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a239a76adb5ff5c5340c58f96d7034ec6"> 151</a></span> int64_t <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a239a76adb5ff5c5340c58f96d7034ec6">File::GetFileSize</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* file_name) {</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>* file = <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a0933ccd7df76fcf8fbcfe12c15dbf6c5">File::Open</a>(file_name, <span class="stringliteral">"r"</span>);</div>
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|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">if</span> (!file)</div>
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|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">return</span> -1;</div>
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|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  int64_t res = file-><a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a1bb2a295cb69b3e51b9cc14969848632">Size</a>();</div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  file-><a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a42290da768cd34316d2f4c5fc3976b38">Close</a>();</div>
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|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> res;</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> }</div>
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|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
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|
<div class="line"><a name="l00160"></a><span class="lineno"><a class="line" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a9a4f45dcab338be2b6843e0de87ce8f1"> 160</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a9a4f45dcab338be2b6843e0de87ce8f1">File::ReadFileToString</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* file_name, std::string* contents) {</div>
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|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  DCHECK(contents);</div>
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|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>* file = <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a0933ccd7df76fcf8fbcfe12c15dbf6c5">File::Open</a>(file_name, <span class="stringliteral">"r"</span>);</div>
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|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (!file)</div>
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|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> kBufferSize = 0x40000; <span class="comment">// 256KB.</span></div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  scoped_ptr<char[]> buf(<span class="keyword">new</span> <span class="keywordtype">char</span>[kBufferSize]);</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  int64_t len;</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">while</span> ((len = file-><a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a663547ead01b035117429c0bc757aab7">Read</a>(buf.get(), kBufferSize)) > 0)</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  contents->append(buf.get(), len);</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
|
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  file-><a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a42290da768cd34316d2f4c5fc3976b38">Close</a>();</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span> len == 0;</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> }</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> } <span class="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> } <span class="comment">// namespace edash_packager</span></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a9a4f45dcab338be2b6843e0de87ce8f1"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a9a4f45dcab338be2b6843e0de87ce8f1">edash_packager::media::File::ReadFileToString</a></div><div class="ttdeci">static bool ReadFileToString(const char *file_name, std::string *contents)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dfc/file_8cc_source.html#l00160">file.cc:160</a></div></div>
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|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a42290da768cd34316d2f4c5fc3976b38"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a42290da768cd34316d2f4c5fc3976b38">edash_packager::media::File::Close</a></div><div class="ttdeci">virtual bool Close()=0</div></div>
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|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a663547ead01b035117429c0bc757aab7"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a663547ead01b035117429c0bc757aab7">edash_packager::media::File::Read</a></div><div class="ttdeci">virtual int64_t Read(void *buffer, uint64_t length)=0</div></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a7e0fcd3c439e810e8e17baf32dcc75af"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a7e0fcd3c439e810e8e17baf32dcc75af">edash_packager::media::File::Delete</a></div><div class="ttdeci">static bool Delete(const char *file_name)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dfc/file_8cc_source.html#l00138">file.cc:138</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#l00022">file.h:22</a></div></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a0933ccd7df76fcf8fbcfe12c15dbf6c5"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a0933ccd7df76fcf8fbcfe12c15dbf6c5">edash_packager::media::File::Open</a></div><div class="ttdeci">virtual bool Open()=0</div><div class="ttdoc">Internal open. Should not be used directly. </div></div>
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|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a4dfd6f4d8f67d2ee1caff4f4e1717c70"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a4dfd6f4d8f67d2ee1caff4f4e1717c70">edash_packager::media::File::Open</a></div><div class="ttdeci">static File * Open(const char *file_name, const char *mode)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dfc/file_8cc_source.html#l00116">file.cc:116</a></div></div>
|
|
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a1bb2a295cb69b3e51b9cc14969848632"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a1bb2a295cb69b3e51b9cc14969848632">edash_packager::media::File::Size</a></div><div class="ttdeci">virtual int64_t Size()=0</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_1File_html_a239a76adb5ff5c5340c58f96d7034ec6"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a239a76adb5ff5c5340c58f96d7034ec6">edash_packager::media::File::GetFileSize</a></div><div class="ttdeci">static int64_t GetFileSize(const char *file_name)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dfc/file_8cc_source.html#l00151">file.cc:151</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a47194a7cd303640c2a8b689d18ef9701"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a47194a7cd303640c2a8b689d18ef9701">edash_packager::media::File::OpenWithNoBuffering</a></div><div class="ttdeci">static File * OpenWithNoBuffering(const char *file_name, const char *mode)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dfc/file_8cc_source.html#l00127">file.cc:127</a></div></div>
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</div><!-- fragment --></div><!-- contents -->
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<!-- start footer part -->
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<hr class="footer"/><address class="footer"><small>
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Generated on Tue Oct 27 2015 21:17:27 for DASH Media Packaging SDK by  <a href="http://www.doxygen.org/index.html">
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</a> 1.8.6
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