Miguel
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Camera shake produces ripple-like effect
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8 votes

This "effect" is called Rolling Shutter. It is common in most CMOS camera sensors because they don't capture an instantaneous image, instead they do it progressively over a period of time. CCD sensors ...

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video bitrate - how large should my video be?
8 votes

The bitrate that you choose determines the quality of your video and the file size. The standard units for bitrate is bits per second, or bps. Sometimes bitrates are expressed in Kbps (kilobits per ...

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Which decoder allows for fast seeking or how to configure k-lite codec pack?
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6 votes

Let me describe what the bottleneck in seeking is. You didn't say what format are your videos encoded in, but I'm guessing you are using H.264 or maybe MPEG-2. Am I correct? To maximize quality, ...

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I changed the .mp4 extension of my video to .mpg and it still opens and plays fine (in VLC and in Windows Media Player). Why is this so?
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5 votes

The .mpg and .mpeg extensions are typically associated with MPEG-1 and MPEG-2 files. The structure of these files is different than the .mp4 format used for H.264 video, part of the MPEG-4 family of ...

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Is it possible that the actual video resolution of the t2i/550d is not 1920x1080
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5 votes

The sensor in your camera has about 18 megapixels, and all those MP are used to record pictures and movies. What's different is how the sensor data was processed on the picture and the movie. Scaling ...

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Why is my video alternating between blurry and sharp?
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5 votes

The effect that you've seen is a side effect of the compression algorithm that was used to encode the video. The most common compression algorithms (MPEG-4 and MPEG-2 among them) compress different ...

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Panasonic's AVCHD video format: questions about quality, compatability, conversion
4 votes

The AVCHD vs. MP4 is just a choice of a container format. When all other parameters are the same, choosing AVCHD or MP4 depends on the use you intend to give to the movie clips that you record. If you ...

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How can I make a video more seekable?
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4 votes

The problems with seeking are typically in the video player and not in the videos themselves, so you may want to look at different video player. A video player should be able to seek to any frame in ...

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What is a good efficient way to isolate clips from long movies?
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3 votes

What format is your long video? The seeking performance problem may not be in Kdenlive but in your movie. If you aren't yet, you should consider using a container format that has index tables. Now ...

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Looking For A Video Editor that will maintain the codecs of the original source video
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3 votes

In many instances you can use ffmpeg to create a clip out of a longer clip, and request that the original frames are copied instead of re-encoded. I'm writing this from memory so you may want to ...

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Editing AVCHD on older XP host?
2 votes

In the early days of AVC where pretty much nobody had a computer that can decode H.264 with decent performance it was standard to transcode to an intermediate format for editing. There are many ...

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Does the M4V file type have direct support for Audio?
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2 votes

I find the m4v extension a bit confusing. For MPEG-2, the .m2v extension is associated with a raw video stream. Those files can have only video. Now for MPEG-4, Apple uses the .m4v extension as a ...

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Tips to make a stopmotion walk
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2 votes

I'm not sure you need a better camera for this. since you are downgrading the images to a pretty low quality anyway. The secret to good green screen photography is in the lighting more than in the ...

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What are the advantages camcorders have over zoom digital cameras?
2 votes

From the point of view of image quality, I think the choice is clear. Camcorders shoot good video and crappy stills, digital still cameras shoot good video and good stills. Some digital still cameras ...

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Canon DSLR home-video. Need advice
1 votes

DSLRs don't have decent auto-focus that can be engaged during video recording. The proper way to work with a DSLR when shooting video is to plan your focus in advance of your shot. If you need to ...

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2 h264/mp4 files does not merging in right way by mp4box
1 votes

I believe this statement: I've a problem while merging 2 h264/mp4 files width the same parameters except length is incorrect. In addition to length your video files have different picture ...

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Shooting with a camera and then pausing while recording
0 votes

You may want to look at MythTV, a very good open source DVR. A more complete list of free DVR applications can be found on Wikipedia's Digital video recorder page.

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filming objects that emit light in low light conditions
0 votes

The main problem I have with the camera is that it quickly renders the objects to be white when in fact they emit purple light (the diffuser is purple on the object). This is because you are letting ...

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