php实现ffmpeg处理视频的实践

本文主要介绍了php实现ffmpeg处理视频的实践，文中通过示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

最近有一个项目需要使用ffmpeg处理视频，这里我写了一个demo，方便我们来实现视频操作

ffmpeg操作demo

<?phpnamespace commonhelpers;use commonmodelsConfig;use commonmodelsVideoApiLog;use Yii;use yiihelpersArrayHelper;use commonhelpersUniversal;use yiihelpersFileHelper;use yiihttpclientClient;use yiiwebServerErrorHttpException;/** * ffmpeg视频处理 * * @author wangjian * @since 0.1 */class FfmpegVideo{public $ffmpeg = 'ffmpeg';public function __construct($ffmpeg = null){if ($ffmpeg) {$this->ffmpeg = $ffmpeg;}}/** * 添加视频文字滚动 * @param $source string 视频 * @param $saveFile string 保存文件 * @param $text string 水印文字 * @param array $options 水印样式 * @param int $step 每秒步长 * @param int $star 出现时间 */public function titleMod($source, $saveFile, $text, $options = [], $step = 20, $star = 0){$command = $this->ffmpeg .' -y -i '. $source .' -async 1 -metadata:s:v:0 start_time=0 -vf ';$fonts = Yii::getAlias('@webroot') . "/fonts/simsun.ttc";$fonts = str_replace('\', '/', $fonts);$fonts = str_replace(':', '\:', $fonts);$command .= '"drawtext=fontfile=''. $fonts .'': text=''. $text .''';foreach ($options as $key => $value) {$command .= ':' . $key . '=' . $value;}$command .= ':x='if(gte(t,'. $star .'),((t-'. $star .') * '. $step .'),NAN)'';$command .= '" ';$command .= $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 图片水印 * @param $source string 视频 * @param $saveFile string 保存文件 * @param $waterImage string 水印图片 * @param $left integer 水印水平位置 * @param $top integer 水印垂直位置 * @param null $star 水印开始时间 * @param null $duration 水印时长 */public function imageWater($source, $saveFile, $waterImage, $left, $top, $star = null, $duration = null){$waterImage = str_replace('\', '/', $waterImage);$waterImage = str_replace(':', '\:', $waterImage);$command = $this->ffmpeg . ' -y -i '. $source .' -vf "movie=''. $waterImage .''[watermark];';$command .= '[in][watermark] overlay='. $left .':'. $top;if ($star) {$end = ($duration) ? $star + $duration : $star;$command .= ':enable='between(t,'. $star .','. $end .')'';}$command .= '[out] " ' . $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 给视频添加文字水印 * @param $source string 视频 * @param $saveFile string 保存文件 * @param $text string 水印文字 * @param array $options 水印样式 * @param null $star 水印开始时间 * @param null $duration 水印时长 */public function titleWater($source, $saveFile, $text, $options = [], $star = null, $duration = null){$command = $this->ffmpeg .' -y -i '. $source .' -vf ';$fonts = Yii::getAlias('@webroot') . "/fonts/STZHONGS.TTF";$fonts = str_replace('\', '/', $fonts);$fonts = str_replace(':', '\:', $fonts);$command .= '"drawtext=fontfile=''. $fonts .'': text=''. $text .''';foreach ($options as $key => $value) {$command .= ':' . $key . '=' . $value;}if ($star) {$end = ($duration) ? $star + $duration : $star;$command .= ':enable='between(t,'. $star .','. $end .')'';}$command .= '" ';$command .= $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 将音频合并到视频中 * @param $videoFile string 视频文件 * @param $audioFile string 音频文件 * @param $saveFile string 保存文件 * @param $delay integer 声音插入延时秒数 */public function mergeVideoAudio($videoFile, $audioFile, $saveFile, $delay = null){$delayTime = 0;if ($delay) {$delayTime = $delay * 1000;}$command =$this->ffmpeg . ' -y -i '. $audioFile .' -i '. $videoFile .' -c:v copy -c:a aac -strict experimental -filter_complex "[0]adelay='. $delayTime .'|'. $delayTime .'[del1],[1][del1]amix" ' . $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 静音 */public function audioMute($source, $saveFile){$command =$this->ffmpeg . ' -y -i '. $source .' -filter:a "volume=0" ' . $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 提取视频的音频 * @param $source string 需要提取声音的视频 * @param $saveFile string 提取声音后保存的音频 * @return bool */public function collectAudio($source, $saveFile){$command =$this->ffmpeg . ' -y -i '. $source .' -vn -acodec copy ' . $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 去除视频声音 * @param $source string 需要去除声音的视频 * @param $saveFile string 去除声音后保存的视频 */public function removeAudio($source, $saveFile){$command =$this->ffmpeg . ' -y -i '. $source .' -an ' . $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 视频拼接 * @param $sources array 需要拼接的视频/音频 * @param $saveFile string 拼接后的视频/音频 */public function spliceVideo($sources, $saveFile){$commands = [];$temporaryFile = [];$basePath = sys_get_temp_dir();$index = 0;foreach ($sources as $i => $source) {$file = $basePath . '/' . $i . '.ts';$commands[$index] = $this->ffmpeg . ' -y -i '. $source .' -vcodec copy -acodec copy -vbsf h264_mp4toannexb ' . $file;$temporaryFile[] = $file;$index++;}$commands[$index] = $this->ffmpeg . ' -y -i "concat:'. implode('|', $temporaryFile) .'"-acodec copy -vcodec copy -absf aac_adtstoasc ' . $saveFile;foreach ($commands as $command) {exec($command, $output, $result_code);}foreach ($temporaryFile as $file) {@unlink($file);}return true;}/** * 视频剪切 * @param $source string 需要剪切视频/音频 * @param $saveFile string 剪切后保存视频/音频 * @param $star string 剪切开始时间 * @param null $duration string 剪切时长 */public function clipVideo($source, $saveFile, $star, $duration = null){$command = $this->ffmpeg . ' -y -ss '. $star;if ($duration) {$command .= ' -t '. $duration;}$command .= ' -i '. $source .' -acodec copy ' . $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}const ROTATE_90 = 'transpose=1';const ROTATE_180 = 'hflip,vflip';const ROTATE_270 = 'transpose=2';/** * 视频旋转 * @param $source string 需要旋转的视频 * @param $saveFile string 旋转后视频 * @param $rotate string 旋转角度 */public function transposeVideo($source, $saveFile, $rotate){$command = $this->ffmpeg . ' -y -i ' . $source . ' -vf ""transpose=1"" ' . $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 视频转码 * @param $source string 需要转码的视频/音频 * @param $saveFile string 转码后的视频/音频 */public function acodecVideo($source, $saveFile){$command = $this->ffmpeg . ' -y -i '. $source .' -acodec copy -vcodec copy -f mp4 ' . $saveFile;exec($command, $output, $result_code);if ($result_code == 0) {return true;}returnfalse;}/** * 视频拼接 * @param $sources array 需要拼接的视频/音频 * @param $saveFile string 拼接后的视频/音频 */public function concatVideo($sources, $saveFile){$file = $this->createTemporaryFile();$fileStream = @fopen($file, 'w');if($fileStream === false) {throw new ServerErrorHttpException('Cannot open the temporary file.');}$count_videos = 0;if(is_array($sources) && (count($sources) > 0)) {foreach ($sources as $videoPath) {$line = "";if($count_videos != 0)$line .= "n";$line .= "file '". str_replace('\','/',$videoPath) ."'";fwrite($fileStream, $line);$count_videos++;}}else {throw new ServerErrorHttpException('The list of videos is not a valid array.');}$command = $this->ffmpeg .' -y -f concat -safe 0 -i '. $file . ' -c copy ' . $saveFile;exec($command, $output, $result_code);fclose($fileStream);@unlink($file);//删除文件if ($result_code == 0) {return true;}returnfalse;}/** * 创建一个临时文件 */public function createTemporaryFile(){$basePath = sys_get_temp_dir();if (false === $file = @tempnam($basePath, null)) {throw new ServerErrorHttpException('Unable to generate a temporary filename');}return $file;}/** * 获取视频信息 * @param $source string 需要获取时长的资源 */public function getAttributes($source){ob_start();$command = $this->ffmpeg . ' -i "'. $source .'" 2>&1';passthru($command);$getContent = ob_get_contents();ob_end_clean();$duration = 0;$widht = 0;$height = 0;if (preg_match("/Duration: (.*?), start: (.*?), bitrate: (d*) kb/s/", $getContent, $match)) {$matchs = explode(':', $match[1]);$duration = $matchs[0] * 3600 + $matchs[1] * 60 + $matchs[2]; //转换播放时间为秒数}if (preg_match("/Video: (.*?), (.*?), (.*?)[,s]/", $getContent, $match)) {$matchs = explode('x', $match[3]);$widht = $matchs[0];$height = $matchs[1];}return ['duration' => intval($duration),'widht' => intval($widht),'height' => intval($height),];}}

使用简单示例

这里注意如果无法执行ffmpeg，实例化时需要传入ffmpeg的安装地址，例如linux下ffmpeg安装地址为/usr/local/ffmepg，那么实例化时需要传入/usr/local/ffmpeg/bin/ffmpeg

1：给视频添加文字

$ffmpeg = new FfmpegVideo();$ffmpeg ->titleWater('XXX',//原视频'XXX',//处理后保存视频'XXX',//文字['x' => 30,//水平距离'y' => 30,//垂直距离'fontsize' => 20,//文字大小'fontcolor' => 'red',//文字颜色'shadowy' => 2,//文字阴影],200,//每秒移动步长2//文字出现时间(秒));

2：将视频设为静音

$ffmpeg = new FfmpegVideo();$ffmpeg->audioMute('XXX',//原视频'XXX',//处理后保存视频);

3：视频裁剪

$ffmpeg = new FfmpegVideo();$ffmpeg->clipVideo('XXX',//原视频'XXX',//处理后保存视频0,//裁剪开始时间10//裁剪时长);

4：视频拼接

$ffmpeg = new FfmpegVideo();$ffmpeg->concatVideo(['XXX', 'XXX'],//需要拼接的视频'XXX',//处理后保存视频);

5：将音频合并到视频中

$ffmpeg = new FfmpegVideo();$ffmpeg->mergeVideoAudio('XXX',//视频'XXX',//音频'XXX',//处理后保存视频0//音频插入视频延时时间(秒));

6：获取视频信息(长，宽，时长)

$ffmpeg = new FfmpegVideo();$ffmpeg->getAttributes('XXX',//视频);

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