截取视频指定帧为图片，php ffmpeg扩展已经完美实现：

1. $movie = new ffmpeg_movie($video_filePath);
2. $ff_frame = $movie->getFrame(1);
3. $gd_image = $ff_frame->toGDImage();
4. $img="./test.jpg";
5. imagejpeg($gd_image, $img);
6. imagedestroy($gd_image);

1. /usr/local/ffmpeg/bin/ffprobe test.mp4 -show_streams | grep rotate

1. function get_video_orientation($video_path) {
2. $cmd = "/usr/local/ffmpeg/bin/ffprobe " . $video_path . " -show_streams 2>/dev/null";
3. $result = shell_exec($cmd);
4.  
5. $orientation = 0;
6. if(strpos($result, 'TAG:rotate') !== FALSE) {
7. $result = explode("\n", $result);
8. foreach($result as $line) {
9. if(strpos($line, 'TAG:rotate') !== FALSE) {
10. $stream_info = explode("=", $line);
11. $orientation = $stream_info[1];
12. }
13. }
14. }
15. return $orientation;
16. }

1. $movie = new ffmpeg_movie($video_filePath);
2. $frame = $movie->getFrame(1);
3. $gd = $frame->toGDImage();
4. if ($orientation = $this->get_video_orientation($video_filePath)) {
5. $gd = imagerotate($gd, 360-$orientation, 0);
6. }
7. $img="./test.jpg";
8. imagejpeg($gd, $img);
9. imagedestroy($gd_image);

1. /usr/local/ffmpeg/bin/ffmpeg -i input.mp4 -vf 'transpose=3' -metadata:s:v:0 rotate=0 -codec:v libx264 -strict -2 -y output.mp4

• ffmpeg官方文档