我最近遇到了同样的问题，因为我想把我的图书馆服务于浏览器。令人惊讶的是，通过ffmpeg发送流并在飞行中传送的想法效果非常好。主要问题是支持寻求…

以下，您在Python中使用Flask找到代码sniplet来解决问题：

我们需要一个功能来流式传输内容：

@app.route('/media/.ogv')

def media_content_ogv(path):

d= os.path.abspath( os.path.join( config.media_folder,path ) )

if not os.path.isfile( d ): abort(404)

start= request.args.get("start") or 0

def generate():

cmdline= list()

cmdline.append( config.ffmpeg )

cmdline.append( "-i" )

cmdline.append( d );

cmdline.append( "-ss" )

cmdline.append( str(start) );

cmdline.extend( config.ffmpeg_args )

print cmdline

FNULL = open(os.devnull,'w')

proc= subprocess.Popen( cmdline,stdout=subprocess.PIPE,stderr=FNULL )

try:

f= proc.stdout

byte = f.read(512)

while byte:

yield byte

byte = f.read(512)

finally:

proc.kill()

return Response(response=generate(),status=200,mimetype='video/ogg',headers={'Access-Control-Allow-Origin': '*',"Content-Type":"video/ogg","Content-Disposition":"inline","Content-Transfer-Enconding":"binary"})

那么我们需要一个函数来返回持续时间：

@app.route('/media/.js')

def media_content_js(path):

d= os.path.abspath( os.path.join( config.media_folder,path ) )

if not os.path.isfile( d ): abort(404)

cmdline= list()

cmdline.append( config.ffmpeg )

cmdline.append( "-i" )

cmdline.append( d );

duration= -1

FNULL = open(os.devnull,'w')

proc= subprocess.Popen( cmdline,stderr=subprocess.PIPE,stdout=FNULL )

try:

for line in iter(proc.stderr.readline,''):

line= line.rstrip()

#Duration: 00:00:45.13,start: 0.000000,bitrate: 302 kb/s

m = re.search('Duration: (..):(..):(..)\...',line)

if m is not None: duration= int(m.group(1)) * 3600 + int(m.group(2)) * 60 + int(m.group(3)) + 1

finally:

proc.kill()

return jsonify(duration=duration)

最后，我们使用videojs将其侵入HTML5：

var video= videojs('video');

video.src("media/testavi.avi.ogv");

// hack duration

video.duration= function() { return video.theDuration; };

video.start= 0;

video.oldCurrentTime= video.currentTime;

video.currentTime= function(time)

{

if( time == undefined )

{

return video.oldCurrentTime() + video.start;

}

console.log(time)

video.start= time;

video.oldCurrentTime(0);

video.src("media/testavi.avi.ogv?start=" + time);

video.play();

return this;

};

$.getJSON( "media/testavi.avi.js",function( data )

{

video.theDuration= data.duration;

});

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