PHP ffmpeg 将 GIF 转换为 MP4

Question

我使用以下代码将 GIF 转换为 MP4：

$videoname = str_replace('.gif', '.mp4', $picname);

$ffmpeg = FFMpeg\FFMpeg::create(array(

    'ffmpeg.binaries'  => 'ffmpeg/bin/ffmpeg.exe',

    'ffprobe.binaries' => 'ffmpeg/bin/ffprobe.exe',

    'timeout'          => 6600, // The timeout for the underlying process

    'ffmpeg.threads'   => 12,   // The number of threads that FFMpeg should use

), $logger);

$video = $ffmpeg->open('memes/' . $folder . '/' . $picname);

$format = new \FFMpeg\Format\Video\X264('libvo_aacenc', 'libx264');

$format->setAdditionalParameters(array('-profile:v', 'baseline', '-pix_fmt', 'yuv420p'));

$video

    ->save($format, 'memes/' . $folder . '/' . $videoname);

有些 GIF 正在转换，但有些则没有，这是错误消息：

[16-Aug-2020 14:47:21 Europe/Berlin] PHP Fatal error:  Uncaught Alchemy\BinaryDriver\Exception\ExecutionFailureException: ffmpeg failed to execute command "ffmpeg/bin/ffmpeg.exe" -y -i "memes/38/Dr5W6yzR_gif_38.gif" -threads 12 -vcodec libx264 -acodec libvo_aacenc -b:v 1000k -refs 6 -coder 1 -sc_threshold 40 -flags +loop -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -trellis 1 -b:a 128k -profile:v baseline -pix_fmt yuv420p -pass 1 -passlogfile "C:\Windows\TEMP\ffmpeg-passes5f392ad8ba750qewzr/pass-5f392ad8bb9b7" "memes/38/Dr5W6yzR_gif_38.mp4":

Error Output:

 ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers

  built with gcc 9.2.1 (GCC) 20200122

  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --e in C:\Inetpub\vhosts\yolol.de\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\Media\AbstractVideo.php on line 106

这都是些什么废话？

Answer 1

解决方案：$format->setAdditionalParameters(array('-profile:v', 'baseline', '-pix_fmt', 'yuv420p', '-vf', 'scale=trunc(iw/2)*2:trunc(ih/2)*2'));