如何播放html5视频?什么时候文件是file.m4v? [英] How to play html5 video? When the file is file.m4v?
问题描述
我尝试了几种方法，但没有一个使用html5播放file2.m4v，请参见屏幕截图.
I have tried several methods but none is playing the file2.m4v using html5 see screen shot.
但是，如果我使用VLC/Mplayer使用相同的文件，则可以很好地播放电影(没问题).请查看以下代码和文件详细信息，以查找该代码的用法:
But if i use that same file using VLC/Mplayer it play the film nicely (no problem). Please see following the code and the file detail information's to find the code's its using:
<html>
<head>
</head>
<body>
<video preload="auto" autoplay="autoplay" controls>
<source
src="/var/www/html/video/file2.m4v"
type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"'>
</video>
</body>
</html>
找到文件音频/视频编解码器:
$ mplayer -vo null -ao null -frames 0 -identify file2.m4v
MPlayer SVN-r33251-4.6.0 (C) 2000-2011 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing file2.m4v.
TS file format detected.
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
TS_PARSE: COULDN'T SYNC
VIDEO MPEG4(pid=69) AUDIO AAC(pid=68) NO SUBS (yet)! PROGRAM N. 1
ID_VIDEO_ID=69
ID_AUDIO_ID=68
FPS not specified in the header or invalid, use the -fps option.
Load subtitles in ./
ID_FILENAME=file2.m4v
ID_DEMUXER=mpegts
ID_VIDEO_FORMAT=0x10000004
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=352
ID_VIDEO_HEIGHT=288
ID_VIDEO_FPS=0.000
ID_VIDEO_ASPECT=0.0000
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
ID_AUDIO_FORMAT=MP4A
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=0
ID_AUDIO_NCH=0
PROGRAM_ID=1 (0x01), PMT_PID: 66(0x42)
ID_START_TIME=28315.35
ID_LENGTH=0.00
ID_SEEKABLE=1
ID_CHAPTERS=0
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Unsupported PixelFormat 61
Unsupported PixelFormat 53
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
ID_VIDEO_CODEC=ffodivx
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 8000 Hz, 1 ch, s16le, 0.0 kbit/0.00% (ratio: 0->16000)
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=8000
ID_AUDIO_NCH=1
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
AO: [null] 8000Hz 1ch s16le (2 bytes per sample)
ID_AUDIO_CODEC=ffaac
Starting playback...
Exiting... (End of file)
ID_EXIT=EOF
我还能在浏览器中播放此文件吗?是否有可用的JavaScript播放器，以防html5无法播放?
What else i can use to play this file in the browser? Is there any javascript player available also in case html5 cant play it?
推荐答案
HTML5视频只是使用新元素播放某些视频格式的约定，浏览器将为此实现自己的播放器.HTML5无法提供播放器或类似功能.
HTML5 Video is just a convention to play a certain video formats with a new element for which browsers will implement an own player. HTML5 won’t provide players or something like that.
您必须寻找大多数浏览器支持的编解码器和包含的内容，如果我记得很好的话，它们是在OGG容器中大部分用于视频的Theora和用于音频的Vorbis.
You have to look for the codecs and contained supported by most browsers, which, if I remember well, are mostly Theora for Video and Vorbis for audio, in an OGG container.
然后，我记得Webkit浏览器将使用V8作为视频编解码器和Vorbis作为音频来支持Matroska(MKV)容器.
Then I remember that Webkit browsers will support Matroska (MKV) containers using V8 as video codec and Vorbis for audio.
我的建议:提供一个分别带有Theora和Vorbis的OGG文件作为视频和音频编解码器.内部使用MKV文件和V8和Vorbis提供后备广告，然后，如果可以的话，在内部使用Mpeg2和MP2(再好不过了)作为视频和音频编解码器的MPG视频文件内部，进行后备广告.然后作为最后的后备，Flash播放器播放FLV视频文件.
My recommendation: provide an OGG file with Theora and Vorbis as video and audio codecs respectively. Inside provide a fallback using an MKV file with V8 and Vorbis and then, if you can, inside an MPG video file using Mpeg2 and MP2 (couldn’t think on something better) as video and audio codecs, fallback. Then as the last fallback, a Flash player playing a FLV video file.
HTML外观示例:
<video src="thevideo.ogg">
<video src="firstFallback.mkv">
<object type="video/mpeg" src="secondFallback.mpeg">
<object
type="application/x-shockwave-flash"
src="player.swf?etc...">
<p>Download <a href="videourl">the video etc...</a><br />
or use a more modern browser to watch online, etc...</p>
</object>
</object>
</video>
</video>
等等...;-)
使用此配置，大多数(如果不是全部)浏览器都应该能够播放您的视频，而选择最受支持(也是最现代的)格式.进行"Fallbacking"，直到他们找到Flash Player.
With this configuration, most (if not all) browsers should be able to play your video, preferring the most supported (and most modern) format. "Fallbacking" until they find a Flash Player.
有关支持哪种格式的提示:请查看Wikipedia中的HTML5视频部分.
重要:在您的代码中，您所指的是绝对文件系统路径，对于Web访问者而言，这是完全不可行的.也许在 src 中，您的意思是/video/file2.m4v .
Important: In your code you are refering to an absolute filesystem path, which is totally not-accesible for a web visitor. Maybe in the src you meant /video/file2.m4v.
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