phpffmpegffmpeg-php

Merge Multiple Inputs in One With PHP-FFmpeg

I want to merge multiple videos side by side in one video with PHP-FFmpeg, is there anyone help me about that?

public function GENERATE_VIDEO()
{
    require_once APPPATH . '/third_party/vendor/autoload.php';
    $ffmpeg = FFMpeg\FFMpeg::create([
        'ffmpeg.binaries'  => APPPATH . '/third_party/ffmpeg',
        'ffprobe.binaries'  => APPPATH . '/third_party/ffprobe',
    ]);;
    $inputs = array(
        '../output/01.webm',
        '../output/02.webm',
    );
    $advancedMedia = $ffmpeg->openAdvanced($inputs);
    $ffmpeg->getFFMpegDriver()->listen(new \Alchemy\BinaryDriver\Listeners\DebugListener());
    $ffmpeg->getFFMpegDriver()->on('debug', function ($message) {
        echo $message . "\n";
    });
    $advancedMedia = $ffmpeg->openAdvanced($inputs);
    $advancedMedia->filters()
        ->custom('[0]', 'overlay=:x=000:y=000', '[output0]')
        ->custom('[output0][1]', 'overlay=:x=058:y=000', '[output1]');
    $advancedMedia
        ->map(array('[output1]'), new FFMpeg\Format\Video\WebM(), '../output/output.webm')
        ->save();
}

Above code is working actually, but there is something wrong with custom filters, it's saving only one input.

Solution

  • Use hstack filter instead of overlay filter if you want side-by-side.

    Change:

        ->custom('[0]', 'overlay=:x=000:y=000', '[output0]')
    ->custom('[output0][1]', 'overlay=:x=058:y=000', '[output1]');

    To:

        ->custom('[0][1]', 'hstack', '[output1]');