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<div id="projectname">ESP32 WebCam Server<span id="projectnumber">&#160;5.0</span>
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<div id="projectbrief">Fully customizable WebCam server based on Espressif ESP32-based board with a camera.</div>
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<a href="app__cam_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#ifndef app_cam_h</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#define app_cam_h</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;esp_camera.h&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;esp_int_wdt.h&gt;</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;esp_task_wdt.h&gt;</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span> </div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include &quot;<a class="code" href="app__component_8h.html">app_component.h</a>&quot;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include &quot;<a class="code" href="camera__pins_8h.html">camera_pins.h</a>&quot;</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html"> 16</a></span><span class="keyword">class </span><a class="code hl_class" href="class_c_l_app_cam.html">CLAppCam</a> : <span class="keyword">public</span> <a class="code hl_class" href="class_c_l_app_component.html">CLAppComponent</a> {</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <a class="code hl_function" href="class_c_l_app_cam.html#a5489d93c51c1b4f3457af58970ff953d">CLAppCam</a>();</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#af277f42041c7c0a561bd8c8b087f4b3a">start</a>();</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#a8f1da94b3efb536a15419e5983fcac81">stop</a>(); </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#a26a9c706c7c9f86adbfa3cfb748760df">loadPrefs</a>();</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#a0f2bc29dea9609204871b7b5bc281c4f">savePrefs</a>();</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#ac20c8599dfc6112502b2ca9e446e6af5"> 26</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#ac20c8599dfc6112502b2ca9e446e6af5">getSensorPID</a>() {<span class="keywordflow">return</span> (sensor?sensor-&gt;id.PID:0);};</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#af812f50b9e35bcdb56af399c4fafd8f2"> 27</a></span> sensor_t * <a class="code hl_function" href="class_c_l_app_cam.html#af812f50b9e35bcdb56af399c4fafd8f2">getSensor</a>() {<span class="keywordflow">return</span> sensor;};</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#a97ffe4ceb1fc0ae537d4e5f96cb7691e"> 28</a></span> String <a class="code hl_function" href="class_c_l_app_cam.html#a97ffe4ceb1fc0ae537d4e5f96cb7691e">getErr</a>() {<span class="keywordflow">return</span> critERR;};</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#a790db89fdbe6524175ad6f447b863c26"> 30</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#a790db89fdbe6524175ad6f447b863c26">getFrameRate</a>() {<span class="keywordflow">return</span> frameRate;};</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#a6581e369883546817a1edaedf4af1734"> 31</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_c_l_app_cam.html#a6581e369883546817a1edaedf4af1734">setFrameRate</a>(<span class="keywordtype">int</span> newFrameRate) {frameRate = newFrameRate;};</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#a9ccd0763eb8eeb559b46e747df25d268"> 33</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_c_l_app_cam.html#a9ccd0763eb8eeb559b46e747df25d268">setXclk</a>(<span class="keywordtype">int</span> val) {xclk = val;};</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#a8e19e1d337c7d7406d713a42615005aa"> 34</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#a8e19e1d337c7d7406d713a42615005aa">getXclk</a>() {<span class="keywordflow">return</span> xclk;};</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#a27d4c05b87660b0e04b6a8902f0f173e"> 36</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_c_l_app_cam.html#a27d4c05b87660b0e04b6a8902f0f173e">setRotation</a>(<span class="keywordtype">int</span> val) {myRotation = val;};</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#a65918dca872c1d5bdcb0bb556451127f"> 37</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#a65918dca872c1d5bdcb0bb556451127f">getRotation</a>() {<span class="keywordflow">return</span> myRotation;};</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordtype">int</span> <a class="code hl_function" href="class_c_l_app_cam.html#a89a7a39bd89130cab06fd7139fc9b6d9">snapToBuffer</a>();</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#aac54409dcd9344abbbe434b237dc505f"> 40</a></span> uint8_t * <a class="code hl_function" href="class_c_l_app_cam.html#aac54409dcd9344abbbe434b237dc505f">getBuffer</a>() {<span class="keywordflow">return</span> fb-&gt;buf;};</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#aa0f1c434be24055bab3abb459a071abd"> 41</a></span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="class_c_l_app_cam.html#aa0f1c434be24055bab3abb459a071abd">getBufferSize</a>() {<span class="keywordflow">return</span> fb-&gt;len;};</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="class_c_l_app_cam.html#a1f01a309f73eb36142ab8b449c81a381"> 42</a></span> <span class="keywordtype">bool</span> <a class="code hl_function" href="class_c_l_app_cam.html#a1f01a309f73eb36142ab8b449c81a381">isJPEGinBuffer</a>() {<span class="keywordflow">return</span> fb-&gt;format == PIXFORMAT_JPEG;};</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_c_l_app_cam.html#aaf9c6d7306c5122eb6766011b8fc4c4c">releaseBuffer</a>(); </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// Camera config structure</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> camera_config_t config;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="comment">// Camera module bus communications frequency.</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// Originally: config.xclk_freq_mhz = 20000000, but this lead to visual artifacts on many modules.</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="comment">// See https://github.com/espressif/esp32-camera/issues/150#issuecomment-726473652 et al.</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// Initial setting is configured in /default_prefs.json</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordtype">int</span> xclk = 8;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="comment">// frame rate in FPS</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="comment">// default can be set in /default_prefs.json</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordtype">int</span> frameRate = 25;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordtype">int</span> lampChannel = 7; <span class="comment">// a free PWM channel (some channels used by camera)</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">const</span> <span class="keywordtype">int</span> pwmfreq = 50000; <span class="comment">// 50K pwm frequency</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keyword">const</span> <span class="keywordtype">int</span> pwmresolution = 9; <span class="comment">// duty cycle bit range</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">const</span> <span class="keywordtype">int</span> pwmMax = pow(2,pwmresolution)-1;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// Critical error string; if set during init (camera hardware failure) it</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// will be returned for stream and still image requests</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> String critERR = <span class="stringliteral">&quot;&quot;</span>;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// initial rotation</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="comment">// default can be set in /default_prefs.json</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordtype">int</span> myRotation = 0;</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="comment">// camera buffer pointer</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> camera_fb_t * fb = NULL;</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="comment">// camera sensor</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> sensor_t * sensor;</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>};</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="keyword">extern</span> <a class="code hl_class" href="class_c_l_app_cam.html">CLAppCam</a> <a class="code hl_variable" href="app__cam_8h.html#a2c40f09444d86a4ed61c53c20f0c9825">AppCam</a>;</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aapp__cam_8h_html_a2c40f09444d86a4ed61c53c20f0c9825"><div class="ttname"><a href="app__cam_8h.html#a2c40f09444d86a4ed61c53c20f0c9825">AppCam</a></div><div class="ttdeci">CLAppCam AppCam</div><div class="ttdef"><b>Definition:</b> app_cam.cpp:217</div></div>
<div class="ttc" id="aapp__component_8h_html"><div class="ttname"><a href="app__component_8h.html">app_component.h</a></div></div>
<div class="ttc" id="acamera__pins_8h_html"><div class="ttname"><a href="camera__pins_8h.html">camera_pins.h</a></div></div>
<div class="ttc" id="aclass_c_l_app_cam_html"><div class="ttname"><a href="class_c_l_app_cam.html">CLAppCam</a></div><div class="ttdoc">Camera Manager Manages all interactions with camera.</div><div class="ttdef"><b>Definition:</b> app_cam.h:16</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a0f2bc29dea9609204871b7b5bc281c4f"><div class="ttname"><a href="class_c_l_app_cam.html#a0f2bc29dea9609204871b7b5bc281c4f">CLAppCam::savePrefs</a></div><div class="ttdeci">int savePrefs()</div><div class="ttdef"><b>Definition:</b> app_cam.cpp:141</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a1f01a309f73eb36142ab8b449c81a381"><div class="ttname"><a href="class_c_l_app_cam.html#a1f01a309f73eb36142ab8b449c81a381">CLAppCam::isJPEGinBuffer</a></div><div class="ttdeci">bool isJPEGinBuffer()</div><div class="ttdef"><b>Definition:</b> app_cam.h:42</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a26a9c706c7c9f86adbfa3cfb748760df"><div class="ttname"><a href="class_c_l_app_cam.html#a26a9c706c7c9f86adbfa3cfb748760df">CLAppCam::loadPrefs</a></div><div class="ttdeci">int loadPrefs()</div><div class="ttdef"><b>Definition:</b> app_cam.cpp:83</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a27d4c05b87660b0e04b6a8902f0f173e"><div class="ttname"><a href="class_c_l_app_cam.html#a27d4c05b87660b0e04b6a8902f0f173e">CLAppCam::setRotation</a></div><div class="ttdeci">void setRotation(int val)</div><div class="ttdef"><b>Definition:</b> app_cam.h:36</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a5489d93c51c1b4f3457af58970ff953d"><div class="ttname"><a href="class_c_l_app_cam.html#a5489d93c51c1b4f3457af58970ff953d">CLAppCam::CLAppCam</a></div><div class="ttdeci">CLAppCam()</div><div class="ttdef"><b>Definition:</b> app_cam.cpp:3</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a6581e369883546817a1edaedf4af1734"><div class="ttname"><a href="class_c_l_app_cam.html#a6581e369883546817a1edaedf4af1734">CLAppCam::setFrameRate</a></div><div class="ttdeci">void setFrameRate(int newFrameRate)</div><div class="ttdef"><b>Definition:</b> app_cam.h:31</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a65918dca872c1d5bdcb0bb556451127f"><div class="ttname"><a href="class_c_l_app_cam.html#a65918dca872c1d5bdcb0bb556451127f">CLAppCam::getRotation</a></div><div class="ttdeci">int getRotation()</div><div class="ttdef"><b>Definition:</b> app_cam.h:37</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a790db89fdbe6524175ad6f447b863c26"><div class="ttname"><a href="class_c_l_app_cam.html#a790db89fdbe6524175ad6f447b863c26">CLAppCam::getFrameRate</a></div><div class="ttdeci">int getFrameRate()</div><div class="ttdef"><b>Definition:</b> app_cam.h:30</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a89a7a39bd89130cab06fd7139fc9b6d9"><div class="ttname"><a href="class_c_l_app_cam.html#a89a7a39bd89130cab06fd7139fc9b6d9">CLAppCam::snapToBuffer</a></div><div class="ttdeci">int snapToBuffer()</div><div class="ttdef"><b>Definition:</b> app_cam.cpp:202</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a8e19e1d337c7d7406d713a42615005aa"><div class="ttname"><a href="class_c_l_app_cam.html#a8e19e1d337c7d7406d713a42615005aa">CLAppCam::getXclk</a></div><div class="ttdeci">int getXclk()</div><div class="ttdef"><b>Definition:</b> app_cam.h:34</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a8f1da94b3efb536a15419e5983fcac81"><div class="ttname"><a href="class_c_l_app_cam.html#a8f1da94b3efb536a15419e5983fcac81">CLAppCam::stop</a></div><div class="ttdeci">int stop()</div><div class="ttdef"><b>Definition:</b> app_cam.cpp:78</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a97ffe4ceb1fc0ae537d4e5f96cb7691e"><div class="ttname"><a href="class_c_l_app_cam.html#a97ffe4ceb1fc0ae537d4e5f96cb7691e">CLAppCam::getErr</a></div><div class="ttdeci">String getErr()</div><div class="ttdef"><b>Definition:</b> app_cam.h:28</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_a9ccd0763eb8eeb559b46e747df25d268"><div class="ttname"><a href="class_c_l_app_cam.html#a9ccd0763eb8eeb559b46e747df25d268">CLAppCam::setXclk</a></div><div class="ttdeci">void setXclk(int val)</div><div class="ttdef"><b>Definition:</b> app_cam.h:33</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_aa0f1c434be24055bab3abb459a071abd"><div class="ttname"><a href="class_c_l_app_cam.html#aa0f1c434be24055bab3abb459a071abd">CLAppCam::getBufferSize</a></div><div class="ttdeci">size_t getBufferSize()</div><div class="ttdef"><b>Definition:</b> app_cam.h:41</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_aac54409dcd9344abbbe434b237dc505f"><div class="ttname"><a href="class_c_l_app_cam.html#aac54409dcd9344abbbe434b237dc505f">CLAppCam::getBuffer</a></div><div class="ttdeci">uint8_t * getBuffer()</div><div class="ttdef"><b>Definition:</b> app_cam.h:40</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_aaf9c6d7306c5122eb6766011b8fc4c4c"><div class="ttname"><a href="class_c_l_app_cam.html#aaf9c6d7306c5122eb6766011b8fc4c4c">CLAppCam::releaseBuffer</a></div><div class="ttdeci">void releaseBuffer()</div><div class="ttdef"><b>Definition:</b> app_cam.cpp:208</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_ac20c8599dfc6112502b2ca9e446e6af5"><div class="ttname"><a href="class_c_l_app_cam.html#ac20c8599dfc6112502b2ca9e446e6af5">CLAppCam::getSensorPID</a></div><div class="ttdeci">int getSensorPID()</div><div class="ttdef"><b>Definition:</b> app_cam.h:26</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_af277f42041c7c0a561bd8c8b087f4b3a"><div class="ttname"><a href="class_c_l_app_cam.html#af277f42041c7c0a561bd8c8b087f4b3a">CLAppCam::start</a></div><div class="ttdeci">int start()</div><div class="ttdef"><b>Definition:</b> app_cam.cpp:8</div></div>
<div class="ttc" id="aclass_c_l_app_cam_html_af812f50b9e35bcdb56af399c4fafd8f2"><div class="ttname"><a href="class_c_l_app_cam.html#af812f50b9e35bcdb56af399c4fafd8f2">CLAppCam::getSensor</a></div><div class="ttdeci">sensor_t * getSensor()</div><div class="ttdef"><b>Definition:</b> app_cam.h:27</div></div>
<div class="ttc" id="aclass_c_l_app_component_html"><div class="ttname"><a href="class_c_l_app_component.html">CLAppComponent</a></div><div class="ttdoc">Abstract root class for the appication components.</div><div class="ttdef"><b>Definition:</b> app_component.h:14</div></div>
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