/**
* Render the actual video frames
*
* @param mixed $tests
* @param mixed $frameCount
* @param mixed $im
*/
function RenderFrames(&$tests, $frameCount, $im)
{
global $width, $height, $backgroundColor, $videoPath, $image_bytes, $textColor, $encodeFormat, $encoderSpeed, $fps, $labelHeight, $forceBackgroundColor, $forceTextColor, $combineTimeLabel, $evenTextBackground, $oddTextBackground, $bgEvenText, $bgOddText;
// allocate the background and foreground colors
$bgcolor = isset($tests[0]['bg']) ? html2rgb($tests[0]['bg']) : html2rgb('000000');
$color = isset($tests[0]['text']) ? html2rgb($tests[0]['text']) : html2rgb('ffffff');
if (isset($forceBackgroundColor)) {
$bgcolor = html2rgb($forceBackgroundColor);
}
if (isset($forceTextColor)) {
$color = html2rgb($forceTextColor);
}
$bgEvenTextColor = isset($evenTextBackground) ? html2rgb($evenTextBackground) : $bgcolor;
$bgOddTextColor = isset($oddTextBackground) ? html2rgb($oddTextBackground) : $bgcolor;
// prepare the image
$backgroundColor = imagecolorallocate($im, $bgcolor[0], $bgcolor[1], $bgcolor[2]);
$textColor = imagecolorallocate($im, $color[0], $color[1], $color[2]);
$bgEvenText = imagecolorallocate($im, $bgEvenTextColor[0], $bgEvenTextColor[1], $bgEvenTextColor[2]);
$bgOddText = imagecolorallocate($im, $bgOddTextColor[0], $bgOddTextColor[1], $bgOddTextColor[2]);
imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backgroundColor);
// figure out what a good interval for keyframes would be based on the video length
$keyInt = min(max(6, $frameCount / 30), 240);
// set up ffmpeg
$descriptors = array(0 => array("pipe", "r"));
$videoFile = realpath($videoPath) . '/render.mp4';
if (is_file($videoFile)) {
unlink($videoFile);
}
$codec = $encodeFormat == 'jpg' ? 'mjpeg' : $encodeFormat;
$command = "ffmpeg -f image2pipe -vcodec {$codec} -r {$fps} -i - " . "-vcodec libx264 -r {$fps} -crf 24 -g {$keyInt} " . "-preset {$encoderSpeed} -y \"{$videoFile}\"";
$ffmpeg = proc_open($command, $descriptors, $pipes);
if (is_resource($ffmpeg)) {
if ($labelHeight > 0 || $combineTimeLabel) {
DrawLabels($tests, $im);
}
for ($frame = 0; $frame < $frameCount; $frame++) {
RenderFrame($tests, $frame, $im);
if (isset($image_bytes)) {
fwrite($pipes[0], $image_bytes);
}
}
fclose($pipes[0]);
proc_close($ffmpeg);
}
}
/**
* Render the actual video frames
*
* @param mixed $tests
* @param mixed $frameCount
* @param mixed $im
*/
function RenderFrames(&$tests, $frameCount, $im)
{
global $width, $height, $black, $videoPath, $image_bytes, $textColor, $encodeFormat, $encoderSpeed, $fps, $labelHeight;
// prepare the image (black background)
$black = imagecolorallocate($im, 0, 0, 0);
$textColor = imagecolorallocate($im, 255, 255, 255);
imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $black);
// figure out what a good interval for keyframes would be based on the video length
$keyInt = min(max(6, $frameCount / 30), 240);
// set up ffmpeg
$descriptors = array(0 => array("pipe", "r"));
$videoFile = realpath($videoPath) . '/render.mp4';
if (is_file($videoFile)) {
unlink($videoFile);
}
$codec = $encodeFormat == 'jpg' ? 'mjpeg' : $encodeFormat;
$command = "ffmpeg -f image2pipe -vcodec {$codec} -r {$fps} -i - " . "-vcodec libx264 -r {$fps} -crf 24 -g {$keyInt} " . "-preset {$encoderSpeed} -y \"{$videoFile}\"";
$ffmpeg = proc_open($command, $descriptors, $pipes);
if (is_resource($ffmpeg)) {
if ($labelHeight > 0) {
DrawLabels($tests, $im);
}
for ($frame = 0; $frame < $frameCount; $frame++) {
RenderFrame($tests, $frame, $im);
if (isset($image_bytes)) {
fwrite($pipes[0], $image_bytes);
}
}
fclose($pipes[0]);
proc_close($ffmpeg);
}
}
