<div dir="ltr"><div class="gmail-adn gmail-ads" style="border-left:none;padding:0px;display:flex;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:medium"><div class="gmail-gs" style="margin:0px;padding:0px 0px 20px;width:884px"><div class="gmail-"><div id="gmail-:13s" class="gmail-ii gmail-gt" style="font-size:0.875rem;direction:ltr;margin:8px 0px 0px;padding:0px"><div id="gmail-:13r" class="gmail-a3s gmail-aXjCH" style="overflow:hidden;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:small;line-height:1.5;font-family:Arial,Helvetica,sans-serif"><div dir="ltr">Hello, I have compiled succesfuly the 7th tutorial, but when I am trying to run it, nothing happens, and  there are errors in the terminal :<div><br></div><div>alex@alex-PORTEGE-Z30-A:~/phantomInternship/gstHell/gst-docs/examples/tutorials$ ./basic-tutorial-7</div><div>Obtained request pad src_0 for audio branch.<br>Obtained request pad src_1 for video branch.<br>libva info: VA-API version 0.39.0<br>libva info: va_getDriverName() returns 0<br>libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so<br>libva info: Found init function __vaDriverInit_0_39<br>libva info: va_openDriver() returns 0<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_video_calculate_display_ratio: assertion 'num > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_vaapi_window_new_internal: assertion 'width > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_video_calculate_display_ratio: assertion 'num > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_vaapi_window_new_internal: assertion 'width > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_video_calculate_display_ratio: assertion 'num > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_vaapi_window_new_internal: assertion 'width > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_video_calculate_display_ratio: assertion 'num > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_vaapi_window_new_internal: assertion 'width > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_video_calculate_display_ratio: assertion 'num > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_vaapi_window_new_internal: assertion 'width > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_video_calculate_display_ratio: assertion 'num > 0' failed<br><br>** (basic-tutorial-7:21268): CRITICAL **: gst_vaapi_window_new_internal: assertion 'width > 0' failed<div class="gmail-yj6qo"></div><div class="gmail-adL"><br></div></div></div><div class="gmail-adL"></div></div></div><div class="gmail-hi" style="border-bottom-left-radius:1px;border-bottom-right-radius:1px;padding:0px;width:auto;background:rgb(242,242,242);margin:0px"></div></div></div><div class="gmail-ajx" style="clear:both"></div></div><div class="gmail-gA gmail-gt gmail-acV" style="font-size:0.875rem;padding:0px;width:auto;border-bottom-left-radius:0px;border-bottom-right-radius:0px;border-top:none;margin:0px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"><div class="gmail-gB gmail-xu" style="border-top:0px;padding:0px"><div class="gmail-ip gmail-iq" style="clear:both;margin:0px;padding:16px 0px;border-top:none"><br class="gmail-Apple-interchange-newline"></div></div></div></div>