Question

ffmpeg-php输出错误：ffmpeg-php安装成功后，输出错误ffmpeg_movie::__construct() []: ISO: File Type

源码：
extension_loaded('ffmpeg');
$ffmpegInstance = new ffmpeg_movie('D:\PHP\PHPnow-1.5.6\htdocs\edu118\videos\1111.mp4');echo "getDuration: " . $ffmpegInstance->getDuration()."<br>" .
"getFrameCount: " . $ffmpegInstance->getFrameCount()."<br>" .
"getFrameRate: " . $ffmpegInstance->getFrameRate()."<br>" .
"getFilename: " . $ffmpegInstance->getFilename()."<br>" .
"getComment: " . $ffmpegInstance->getComment()."<br>" .
"getTitle: " . $ffmpegInstance->getTitle()."<br>" .
"getAuthor: " . $ffmpegInstance->getAuthor()."<br>" .
"getCopyright: " . $ffmpegInstance->getCopyright()."<br>" .
"getArtist: " . $ffmpegInstance->getArtist()."<br>" .
"getGenre: " . $ffmpegInstance->getGenre()."<br>" .
"getTrackNumber: " . $ffmpegInstance->getTrackNumber()."<br>" .
"getYear: " . $ffmpegInstance->getYear()."<br>" .
"getFrameHeight: " . $ffmpegInstance->getFrameHeight()."<br>" .
"getFrameWidth: " . $ffmpegInstance->getFrameWidth()."<br>" .
"getPixelFormat: " . $ffmpegInstance->getPixelFormat()."<br>" .
"getBitRate: " . $ffmpegInstance->getBitRate()."<br>" .
"getVideoBitRate: " . $ffmpegInstance->getVideoBitRate()."<br>" .
"getAudioBitRate: " . $ffmpegInstance->getAudioBitRate()."<br>" .
"getAudioSampleRate: " . $ffmpegInstance->getAudioSampleRate()."<br>" .
"getVideoCodec: " . $ffmpegInstance->getVideoCodec()."<br>" .
"getAudioCodec: " . $ffmpegInstance->getAudioCodec()."<br>" .
"getAudioChannels: " . $ffmpegInstance->getAudioChannels()."<br>" .
"hasAudio: " . $ffmpegInstance->hasAudio();

输出：
Notice: ffmpeg_movie::__construct() []: ISO: File Type
Major Brand: isom in D:\PHP\PHPnow-1.5.6\htdocs\edu118\123.php on line
12
getDuration: 145.63555908203
getFrameCount:
3641
getFrameRate: 25
getFilename:
D:\PHP\PHPnow-1.5.6\htdocs\edu118\videos\1111.mp4
getComment:
getTitle:

getAuthor:
getCopyright:
getArtist:
getGenre:

getTrackNumber: 0
getYear: 0
getFrameHeight: 432
getFrameWidth:
576
getPixelFormat: yuv420p
getBitRate: 549357
getVideoBitRate:

getAudioBitRate:
getAudioSampleRate: 22050
getVideoCodec:
h264
getAudioCodec: mpeg4aac
getAudioChannels: 2
hasAudio: 1

这是什么原因啊

Answer 1

参考答案:在自然界中能为我们人的听觉所感受的音是非常多的,但并不是所有的音都可以作为音乐的材料。在音乐中所使用的音,是人们在艺术、生活实践中按一定的音律的比特意挑选出来的，这些音被组成为一个固定的体系,用来表现音乐思想和塑造音乐形象。