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3

Many different factors can contribute to stutter in video playback. It could be a CPU issue (check your CPU when playing the video) in which case, a simpler codec or a player that can leverage the graphics card for decoding would help. It could also be data rate related though. In this case, using a simpler format would actually compound the problem as ...


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http://www.openthefile.com/ext/mjp/4458 and http://www.fileinfo.com/extension/mjp both suggest mplayerx (http://mplayerx.org/) can play them. It would make sense to post a file for people to examine. If mplayer or ffmpeg can play them, chances are mencoder or ffmpeg can encode to the format.


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If compatibility is your top priority, then you should include two alternative versions of your video on your website, like in this HTML example. As for the exact formats I would suggest: H.264 and AAC in MP4: Chrome, Firefox 22+ on Windows, IE9, Safari 3.1 VP8 and Vorbis in WebM: Firefox fallback for Mac and older versions on Windows. (If you need ...


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H.263 was a sole development of the ITU but I wouldn't bother all too much with the specified use case of video conferencing. It's a codec with the main purpose of improving the compression compared to older codecs which of course is beneficial for video conferencing where bandwidth is a very limiting factor, especially at the time the codec got developed. ...


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Vantolinomo - You might just be experiencing 'gamma shift' which can happen when you are exporting to H264 video. You can find a tutorial to fix this here: http://www.videocopilot.net/blog/2008/06/fix-quicktime-gamma-shift/


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The video may look choppy because of the codec you're using. For fun, I recommend trying out your h.264 variant, x264vfw. I know that h.264 is almost ubiquitously used for internet content. Playback in premiere is extremely variable when it comes to sequence settings, video preview settings, system preferences (such as scratch discs, and optimizing for ...


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According to Miraizon support this is a peculiarity in Premiere Pro handling of ProRes that causes it to interact "very inefficiently" with the the codec. There is an update forthcoming but until then they suggested this as a work-around: Move the AppleProResDecoder.qtx from the /Quicktime/QTSystem/ folder to a temp folder. I still get some inconsistencies ...


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There isn't really an alternative to x264vfw. Are you sure the error is with the codec and not your application? It's in wide use, such a major bug would definitely be found. Also be aware that h264 doesn't work in a frame by frame basis unless you encode only intra frames. VP80 is NOT h264, just a similar codec. If you need to develop an app you probably ...


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You don't need a 64bit codec to use it in 64bit Software like VirtualDub or After Effects, a 32bit codec will work just fine. For intermediate codecs I generally use either a QuickTime with PhotoJPEG compression or Animation like you suggested yourself. The latter is lossless and produces fairly big files, the former is lossy just like JPEG but offers ...


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I'm going to repost a section of my answer from this question, as it seems generally relevant: YouTube (as well as Vimeo, and practically every other video website nowadays) works using the H.264 codec. Here are YouTube's instructions for how they'd like videos to be encoded for upload. The TL;DR version of that page: Container: ...


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This is just a result of the compression that Youtube chooses to apply. Your initial data rate for the video (3.5 megabits for an SD video) is exceptionally high and not really designed for streaming. Youtube probably sees that it is only an SD stream and then drops the bit-rate accordingly. It may not be possible to get better quality since Youtube's ...


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There's a table here showing support for the various video codecs by the four main browsers around today. For Chrome and Safari the only option that plays on both is h.264 in an mp4 container. I've found that main profile h264 video plays best across most modern devices, but you can wind it back to base profile if you're having problems. This is a good ...


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I resolved this issue by installing VLC. Apparently VLC has some necessary codecs that Vegas Pro uses. After installing VLC I was able to import the video and use it normally with no hindrances.


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You can try using either of the two Motion JPEG codec's available with Quicktime and see if either of those works after renaming the extension. Motion JPEGs are kind of a major pain though because it's literally just a sequence of JPEG images for each frame within the video and the exact specifications of the container can vary. This can result in files ...


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Not sure on the AVI but kept searching and found http://sketchucation.com/forums/viewtopic.php?f=11&t=18827 What OS are you using? Vista 64 bit has codec issues, so if it is indeed a Vista 64 bit you need to export as a series of images (which is best anyway) and compile it in after effects. I'm on Windows 7 so don't know why it was an issue ...


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I don't know about the specific format of mjpeg that you are working with, but it is certainly possible to handle interlaced video with mjpeg. I believe the most common way is to do a jpeg per field, so you get half the vertical resolution and alternate between the odd and even fields.


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I don't think you will find a single clear tutorial as you are talking about a very very broad field and talking about multiple aspects of it. Many, many, many tutorials exist for help with encoding for YouTube or encoding for Bluray. In fact, most Bluray authoring software has pretty good walkthroughs in their help. Youtube itself outlines the basics for ...


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When video or audio data is compressed, it works by two different mechanisms. The first (which is the only one used by lossless compression) is to look for patterns that are repeated. When patterns are found, it can store the data once and reference the stored copy. The second is only used lossy compression and involves discarding the least significant ...


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Not all video formats use square pixels. In this case, the pixel's are oval (anamorphic wide screen). This comes indirectly from the film days when anamorphic lenses would condense a wide screen image on to a narrower strip of film. The same concept was later applied to squeeze wide screen videos in to video formats that wouldn't normally support them. ...



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