victor elalemanyo

## ampify_img.php
<?php
/**
 * Replace img tag with amp-img
 *
 * <amp-img src="[src]"
 *   width="[width]"
 *   height="[height]"
 *   layout="responsive"
 *   alt="[alt]">
 * </amp-img>

## Create a mosaic out of several input videos
// Video mosaic
ffmpeg
  -i 1.mp4 -i 2.mp4 -i 3.mp4 -i 4.mp4
  -filter_complex "
    nullsrc=size=1280x720 [base];
    [0:v] setpts=PTS-STARTPTS, scale=640x360 [upperleft];
    [1:v] setpts=PTS-STARTPTS, scale=640x360 [upperright];
    [2:v] setpts=PTS-STARTPTS, scale=640x360 [lowerleft];
    [3:v] setpts=PTS-STARTPTS, scale=640x360 [lowerright];
    [base][upperleft] overlay=shortest=1 [tmp1];

## raspberrypi_vnc.md

      
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                elalemanyo
                / raspberrypi_vnc.md
            
            
              Last active
              September 18, 2015 14:25
            
              
                Installing VNC server on Raspberry Pi for remote desktop functionality
              
          
sudo apt-get install x11vnc


Make x11vnc server start with LXDE
cd .config
mkdir autostart
cd autostart
nano x11vnc.desktop
	<?php
	/**
	* Replace img tag with amp-img
	*
	* <amp-img src="[src]"
	* width="[width]"
	* height="[height]"
	* layout="responsive"
	* alt="[alt]">
	* </amp-img>
	// Video mosaic
	ffmpeg
	-i 1.mp4 -i 2.mp4 -i 3.mp4 -i 4.mp4
	-filter_complex "
	nullsrc=size=1280x720 [base];
	[0:v] setpts=PTS-STARTPTS, scale=640x360 [upperleft];
	[1:v] setpts=PTS-STARTPTS, scale=640x360 [upperright];
	[2:v] setpts=PTS-STARTPTS, scale=640x360 [lowerleft];
	[3:v] setpts=PTS-STARTPTS, scale=640x360 [lowerright];
	[base][upperleft] overlay=shortest=1 [tmp1];