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With the rise of social media, video content has become increasingly popular among users. As one of China's largest social platforms, WeChat Mini Programs also face growing demand for video editing functionalities. This article will introduce how to use PHP to develop video editing features for WeChat Mini Programs, with specific code examples provided.
Before you begin, ensure you have completed the following preparations:
Users can select a video file for editing on the WeChat Mini Program and upload it to the server. Once the server receives the video file, it will be stored in the specified directory.
Example Code:
if ($_FILES['video']['error'] === UPLOAD_ERR_OK) {
$targetPath = '/path/to/video/files/';
$fileName = basename($_FILES['video']['name']);
move_uploaded_file($_FILES['video']['tmp_name'], $targetPath . $fileName);
}Use the FFmpeg library to clip the video. You can invoke the FFmpeg command-line tool using the shell_exec() function to process the video.
Example Code:
$inputFile = '/path/to/video/files/video.mp4';
$outputFile = '/path/to/video/files/output.mp4';
$start = '00:00:10'; // Start time
$end = '00:00:20'; // End time
$command = "ffmpeg -i $inputFile -ss $start -t $end -c:v copy -c:a copy $outputFile";
shell_exec($command);Combine multiple video files into one video file to implement the video merging feature.
Example Code:
$inputFile1 = '/path/to/video/files/video1.mp4';
$inputFile2 = '/path/to/video/files/video2.mp4';
$outputFile = '/path/to/video/files/output.mp4';
$command1 = "ffmpeg -i $inputFile1 -c:v copy -c:a copy -f mpegts intermediate1.ts";
$command2 = "ffmpeg -i $inputFile2 -c:v copy -c:a copy -f mpegts intermediate2.ts";
$command3 = "ffmpeg -i concat:intermediate1.ts|intermediate2.ts -c:v copy -c:a copy -bsf:a aac_adtstoasc $outputFile";
shell_exec($command1);
shell_exec($command2);
shell_exec($command3);Transcode the video file to a format that can be accepted by the Mini Program, such as MP4.
Example Code:
$inputFile = '/path/to/video/files/video.mov';
$outputFile = '/path/to/video/files/output.mp4';
$command = "ffmpeg -i $inputFile -c:v libx264 -preset slow -crf 22 -pix_fmt yuv420p -c:a copy $outputFile";
shell_exec($command);Use the ImageMagick library to extract a thumbnail from the video file and save it as an image.
Example Code:
$inputFile = '/path/to/video/files/video.mp4';
$outputFile = '/path/to/video/files/cover.jpg';
$time = '00:00:10'; // Time point for the thumbnail
$command = "ffmpeg -i $inputFile -ss $time -vframes 1 $outputFile";
shell_exec($command);On the Mini Program's frontend, you can use the APIs provided by WeChat Mini Program to perform video editing operations, such as uploading video files and obtaining video thumbnails. For specific steps, refer to the WeChat Mini Program development documentation.
Example Code:
wx.chooseVideo({
sourceType: ['album', 'camera'],
maxDuration: 60,
success(res) {
const tempFilePath = res.tempFilePath;
wx.uploadFile({
url: 'http://example.com/upload.php',
filePath: tempFilePath,
name: 'video',
success(result) {
console.log('Video upload successful');
},
});
wx.createVideoContext("video").getImageInfo({
src: tempFilePath,
success(result) {
const coverUrl = result.path;
console.log('Thumbnail extraction successful');
},
});
},
});This article introduces how to develop video editing features for WeChat Mini Programs using PHP, providing specific code examples. With this guide, developers can implement video clipping, merging, transcoding, and thumbnail extraction in their Mini Programs.
