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3

I found a way to resolve this jittering issue. The root cause is that mpeg file doesn't have full PTS info. There's a closed ticket of FFmpeg talking about exactly this problem: FFmpeg ticket #974 In order to solve this problem, add -fflags +genpts before the input file. Here is a sample FFmpeg command: ffmpeg -fflags +genpts -i ...


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This is possible with the FFmpeg command ffmpeg -i input.mp4 -ss 0 -c copy -t 60 output.mp4. This would cut the video from the beginning -ss 0 to second 60 -t 60. Be aware that -ss is and offset which -t is based upon. So -ss 10 and -t 60 would result in cutting to second 70 and removing the first 10. You can use the -to option to cut at a fixed time ...


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Yes, it is generally possible, but with a few limitations. h.264 uses what is known as a group of pictures. A group of pictures groups multiple frames together in a way that allows for further compression, but the entire group of pictures has to be decoded together. As such, it is only possible to cut a video stream in between groups of pictures. This is ...


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This is available on the page you linked to directly. Look under the Configuration Files section. Relevant details from the page: A file "-conf" file. [ID] # The ID of the representation type=T # T can be "audio" or "video" width=W # if type is "video", # W is the width of the representation height=H # if type is "video", ...


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Sounds like thoses apps aren't respecting the Pixel Aspect Ratio (PAR) flag. Widescreen DVD movies aren't usually made of more pixels, they have a setting in the metadata telling the player to stretch the pixels from squares into rectangles to make the picture look right. VLC is reading the PAR flag and playing the pixels back in their correct aspect ...


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As @LordNeckbeard wrote in the comments, moving the -t flag to after the -i flag works: ffmpeg -ss 0 -i in.mp4 -t 00:30:00 -acodec copy -vcodec copy out.mp4


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After some deep Googling, I did find explanations for a few of these options: MPEG macroblock quantization level. Valid values are from 2 to 31. Low values of this variable mean higher quality and higher bitrate, so 2 is the highest quality and 31 is the lowest quality. VBV buffer size in units of 16k bits. The meaning of this parameter is ...


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You can use tsMuxer to add the audio stream from one .ts file into the .ts file containing the video or vice versa. This is called muxing and doesn't affect the quality of the audio or video in any way.


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Export it from any transcoding software to a frame by frame format such as motion JPEG or an actual image sequence.


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Either After Effects or Premiere will do this for you no problem. I'd probably use After Effects for simplicity since it is easier to understand the layers there. Either use a text effect or use Illustrator to make the text a bit nicer and import it in as a layer in After Effects. Position the video that it is playing over as the bottom layer then import ...


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Adobe Media Server appears to support the functionality you are looking for. There is a free starter edition or the Extended or Professional editions also support live stream splitting.


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You could check out these links to see if they provide what you need: http://www.theneitherworld.com/mcpoodle/SCC_TOOLS/DOCS/SCC_TOOLS.HTML Caption Maker Pro: http://www.cpcweb.com/ And of course Scenarist and Encore, although both are DVD oriented you should be able to produce at least MPEG-2 with closed captions embedded: ...


1

Sounds like your Quicktime install has been messed up, possibly by iTunes or something else installing Quicktime. Try reinstalling Quicktime Player or the whole of Premiere if you can face it...


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Take a look at MPEG Streamclip for Windows. It's a very usefull converter. It's free. You can step frame-by-frame thought your TS-Streams, and you can export frames.



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