mp4

问题 I am trying to stream video from a IP Cam to my my Wordpress site. I would like my stream to be available via common devices Windows, Mac, Android and IOS. Currently I am using VLC to stream,but I can only get a flash stream to work but I would like to do FLV, MP4 and webm. What player should I use to display the MP4 and webm video on the site? Also I don't think the calls to VLC are correct cause I can't open the MP4 and webm stream in VLC on another computer, but I can open the flv stream.

问题 I am trying to stream video from a IP Cam to my my Wordpress site. I would like my stream to be available via common devices Windows, Mac, Android and IOS. Currently I am using VLC to stream,but I can only get a flash stream to work but I would like to do FLV, MP4 and webm. What player should I use to display the MP4 and webm video on the site? Also I don't think the calls to VLC are correct cause I can't open the MP4 and webm stream in VLC on another computer, but I can open the flv stream.

问题 I know one difference between ogg video and mp4 video is that ogg video doesn't have metadata describing the file size, so when an ogg video is loaded, the controls can't show the time remaining until the file has fully loaded. This can be a problem if the ogg video is more than a few minutes long. Is there a way to get this filesize when the page is requested? (Client-side developer, asking a question that I think has a server-side answer. I welcome suggested edits to this question, if you

问题 I want to play the flv files in Android. So what I thought is to convert the flv file to mp4 or 3gp(for which there is a decoder in Android). OpenCore can be used to convert. I have looked into opencore code, there is a class in opencore "/android/external/opencore/fileformats/mp4/composer" to create the mp4 file. It has apis like AddTrack AddSampleToTrack I should give the input as frames, but in Flv I will get the Sorenson Video and Mp3 audio frame(after doing some trivial string operations

问题 This question already has answers here : mp4 in safari fails with htaccess authentication (6 answers) Closed 6 years ago . i m just working on a private page with some videos, which should only be accessible through htaccess. all videos are html5 encoded, and the site works fine for every browser without the htaccess file. after putting the htaccess file to my server, safari fails to load the mp4-videos. in charles i get an "401 Authorization Required". i checked several posts here to the

问题 I have to design a module that detects mp4 files. If will get any random file as input and it has to tell whether it is a mp4 file or not. Where can I find the specification of headers for the mp4 file? Tried googling but could not find anything except the signature. Any other tips regarding C programming for the module? 回答1: you can check the extension or the file signature ( magic number ) http://www.garykessler.net/library/file_sigs.html http://en.wikipedia.org/wiki/List_of_file_signatures

问题 I have an app that I'm writing for both iOS and Android. I have a content page with which I need to link to/play a .mp4 video in a UIWebView/WebView. The video is going to be included in the app so that it can work offline. With iOS I just used a video tag (with source to a project file) and then used NSNotifications to fullscreen and landscape the video (app normally runs in portrait mode). Job done. On Android I'm having some issues. Firstly, when you use a local image as the video poster

问题 I have a very strange issue. My OSX app is generating an mp4 video based on a screen cast. For some reason, if I open this video in Quicktime or any OSX-based AVPlayer, it will start about 14-15 frames in advance of frame 0. If I open the mp4 with Chrome or Firefox, it will actually start playing at frame 0. What could cause this ignoring of beginning frames? Here's a screenshot of a timer countdown comparing Quicktime vs Firefox at time zero. Notice how the Firefox player starts at 9:55,

问题 So, I'm building a website on which users can upload an watch videos. I'm using the standard HTML5 video player ( <video...> <src>... ) Currently, I use multiple sources: MP4, OGG and WEBM, for cross-browser compatibility Due to the fact that maintaining three formats is both CPU intensive (converting) as well as eating away precious disk space, I started searching the need to find out whether it's really needed to support this three formats According to the chart I found on Wikipedia (http:/

问题 I'm using the latest mediaelement.js on my website to play html5 video. There is something strange in Google Chrome. He plays one video, but doesn't want to play the other video in mp4 format and doesn't fallback to webm. Both videos were converted with ffmpeg with this params: ffmpeg -i input.mov -acodec libfaac -ab 96k -vcodec libx264 -vpre slower -vpre main -level 21 -refs 2 -b 345k -bt 345k -threads 0 -s 640x360 output.mp4 Besides, the first video plays normally without using mediaelement