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<div class="title">webvtt_timestamp.cc</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2017 Google Inc. All rights reserved.</span></div>
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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/formats/webvtt/webvtt_timestamp.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 <ctype.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/logging.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/strings/string_number_conversions.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>shaka {</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> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keywordtype">bool</span> GetTotalMilliseconds(uint64_t hours,</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  uint64_t minutes,</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  uint64_t seconds,</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  uint64_t ms,</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  uint64_t* out) {</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  DCHECK(out);</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keywordflow">if</span> (minutes > 59 || seconds > 59 || ms > 999) {</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  VLOG(1) << <span class="stringliteral">"Hours:"</span> << hours</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  << <span class="stringliteral">" Minutes:"</span> << minutes</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  << <span class="stringliteral">" Seconds:"</span> << seconds</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  << <span class="stringliteral">" MS:"</span> << ms</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  << <span class="stringliteral">" shoud have never made it to GetTotalMilliseconds"</span>;</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  }</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  *out = 60 * 60 * 1000 * hours +</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  60 * 1000 * minutes +</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  1000 * seconds +</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  ms;</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> }</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> } <span class="comment">// namespace</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"> 40</span> <span class="keywordtype">bool</span> WebVttTimestampParse(<span class="keyword">const</span> base::StringPiece& source, uint64_t* out) {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  DCHECK(out);</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>  <span class="keywordflow">if</span> (source.length() < 9) {</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  LOG(WARNING) << <span class="stringliteral">"Timestamp '"</span> << source << <span class="stringliteral">"' is mal-formed"</span>;</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">return</span> <span class="keyword">false</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> </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> minutes_begin = source.length() - 9;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> seconds_begin = source.length() - 6;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> milliseconds_begin = source.length() - 3;</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"> 52</span>  uint64_t hours = 0;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  uint64_t minutes = 0;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  uint64_t seconds = 0;</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  uint64_t ms = 0;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> has_hours = minutes_begin >= 3 &&</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  source[minutes_begin-1] == <span class="charliteral">':'</span> &&</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  base::StringToUint64(source.substr(0, minutes_begin-1), &hours);</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>  <span class="keywordflow">if</span> ((minutes_begin == 0 || has_hours) &&</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  source[seconds_begin-1] == <span class="charliteral">':'</span> &&</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  source[milliseconds_begin-1] == <span class="charliteral">'.'</span> &&</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  base::StringToUint64(source.substr(minutes_begin, 2), &minutes) &&</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  base::StringToUint64(source.substr(seconds_begin, 2), &seconds) &&</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  base::StringToUint64(source.substr(milliseconds_begin, 3), &ms)) {</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> GetTotalMilliseconds(hours, minutes, seconds, ms, out);</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"> 70</span>  LOG(WARNING) << <span class="stringliteral">"Timestamp '"</span> << source << <span class="stringliteral">"' is mal-formed"</span>;</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> }</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> } <span class="comment">// namespace shaka</span></div>
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