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<a href="timestamp_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * This file is part of FFmpeg.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * FFmpeg is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * License as published by the Free Software Foundation; either</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * FFmpeg is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * License along with FFmpeg; if not, write to the Free Software</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"></span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * @file</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * timestamp utils, mostly useful for debugging/logging purposes</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#ifndef AVUTIL_TIMESTAMP_H</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span><span class="preprocessor">#define AVUTIL_TIMESTAMP_H</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="common_8h.html">common.h</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#if defined(__cplusplus) && !defined(__STDC_FORMAT_MACROS) && !defined(PRId64)</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span><span class="preprocessor">#error missing -D__STDC_FORMAT_MACROS / #define __STDC_FORMAT_MACROS</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="timestamp_8h.html#ae37ff84f45d95eb72f7bef6cd6b06bb9"> 33</a></span> <span class="preprocessor">#define AV_TS_MAX_STRING_SIZE 32</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"></span><span class="comment"></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * Fill the provided buffer with a string containing a timestamp</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * representation.</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * @param ts the timestamp to represent</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * @return the buffer in input</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="timestamp_8h.html#ac227a6941d6e760371a5391290db38eb"> 43</a></span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">char</span> *<a class="code" href="timestamp_8h.html#ac227a6941d6e760371a5391290db38eb">av_ts_make_string</a>(<span class="keywordtype">char</span> *buf, int64_t ts)</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (ts == <a class="code" href="group__lavu__time.html#ga2eaefe702f95f619ea6f2d08afa01be1">AV_NOPTS_VALUE</a>) snprintf(buf, <a class="code" href="timestamp_8h.html#ae37ff84f45d95eb72f7bef6cd6b06bb9">AV_TS_MAX_STRING_SIZE</a>, <span class="stringliteral">"NOPTS"</span>);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">else</span> snprintf(buf, <a class="code" href="timestamp_8h.html#ae37ff84f45d95eb72f7bef6cd6b06bb9">AV_TS_MAX_STRING_SIZE</a>, <span class="stringliteral">"%"</span>PRId64, ts);</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> buf;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> }</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"></span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> * Convenience macro, the return value should be used only directly in</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * function arguments but never stand-alone.</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="timestamp_8h.html#a86d797e907fa454ed5fd34bfb0bcd747"> 54</a></span> <span class="preprocessor">#define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts)</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor"></span><span class="comment"></span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * Fill the provided buffer with a string containing a timestamp time</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> * representation.</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * @param ts the timestamp to represent</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> * @param tb the timebase of the timestamp</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * @return the buffer in input</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="timestamp_8h.html#a6b063ccd14f9c6c5742e0a81d40580df"> 65</a></span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">char</span> *<a class="code" href="timestamp_8h.html#a6b063ccd14f9c6c5742e0a81d40580df">av_ts_make_time_string</a>(<span class="keywordtype">char</span> *buf, int64_t ts, <a class="code" href="structAVRational.html">AVRational</a> *tb)</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (ts == <a class="code" href="group__lavu__time.html#ga2eaefe702f95f619ea6f2d08afa01be1">AV_NOPTS_VALUE</a>) snprintf(buf, <a class="code" href="timestamp_8h.html#ae37ff84f45d95eb72f7bef6cd6b06bb9">AV_TS_MAX_STRING_SIZE</a>, <span class="stringliteral">"NOPTS"</span>);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">else</span> snprintf(buf, <a class="code" href="timestamp_8h.html#ae37ff84f45d95eb72f7bef6cd6b06bb9">AV_TS_MAX_STRING_SIZE</a>, <span class="stringliteral">"%.6g"</span>, <a class="code" href="group__lavu__math.html#ga935dbbf6bde8dfe5fa7ddb1da582eb07">av_q2d</a>(*tb) * ts);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> buf;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"></span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> * Convenience macro, the return value should be used only directly in</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> * function arguments but never stand-alone.</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="timestamp_8h.html#ad344b91ede6b86fc0a530611293f42da"> 76</a></span> <span class="preprocessor">#define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb)</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor">#endif </span><span class="comment">/* AVUTIL_TIMESTAMP_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="group__lavu__math_html_ga935dbbf6bde8dfe5fa7ddb1da582eb07"><div class="ttname"><a href="group__lavu__math.html#ga935dbbf6bde8dfe5fa7ddb1da582eb07">av_q2d</a></div><div class="ttdeci">static double av_q2d(AVRational a)</div><div class="ttdoc">Convert rational to double. </div><div class="ttdef"><b>Definition:</b> <a href="rational_8h_source.html#l00080">rational.h:80</a></div></div>
<div class="ttc" id="timestamp_8h_html_a6b063ccd14f9c6c5742e0a81d40580df"><div class="ttname"><a href="timestamp_8h.html#a6b063ccd14f9c6c5742e0a81d40580df">av_ts_make_time_string</a></div><div class="ttdeci">static char * av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb)</div><div class="ttdoc">Fill the provided buffer with a string containing a timestamp time representation. </div><div class="ttdef"><b>Definition:</b> <a href="timestamp_8h_source.html#l00065">timestamp.h:65</a></div></div>
<div class="ttc" id="structAVRational_html"><div class="ttname"><a href="structAVRational.html">AVRational</a></div><div class="ttdoc">rational number numerator/denominator </div><div class="ttdef"><b>Definition:</b> <a href="rational_8h_source.html#l00043">rational.h:43</a></div></div>
<div class="ttc" id="timestamp_8h_html_ac227a6941d6e760371a5391290db38eb"><div class="ttname"><a href="timestamp_8h.html#ac227a6941d6e760371a5391290db38eb">av_ts_make_string</a></div><div class="ttdeci">static char * av_ts_make_string(char *buf, int64_t ts)</div><div class="ttdoc">Fill the provided buffer with a string containing a timestamp representation. </div><div class="ttdef"><b>Definition:</b> <a href="timestamp_8h_source.html#l00043">timestamp.h:43</a></div></div>
<div class="ttc" id="common_8h_html"><div class="ttname"><a href="common_8h.html">common.h</a></div><div class="ttdoc">common internal and external API header </div></div>
<div class="ttc" id="timestamp_8h_html_ae37ff84f45d95eb72f7bef6cd6b06bb9"><div class="ttname"><a href="timestamp_8h.html#ae37ff84f45d95eb72f7bef6cd6b06bb9">AV_TS_MAX_STRING_SIZE</a></div><div class="ttdeci">#define AV_TS_MAX_STRING_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="timestamp_8h_source.html#l00033">timestamp.h:33</a></div></div>
<div class="ttc" id="group__lavu__time_html_ga2eaefe702f95f619ea6f2d08afa01be1"><div class="ttname"><a href="group__lavu__time.html#ga2eaefe702f95f619ea6f2d08afa01be1">AV_NOPTS_VALUE</a></div><div class="ttdeci">#define AV_NOPTS_VALUE</div><div class="ttdoc">Undefined timestamp value. </div><div class="ttdef"><b>Definition:</b> <a href="avutil_8h_source.html#l00240">avutil.h:240</a></div></div>
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