Looking for:
Sony vegas pro 13 x264 free |
Bevor Sie zu Google weitergehen - Sony vegas pro 13 x264 free
Other codecs are "lossy", and that means that you loss some of the video information during compression. Lossless codecs create better video, but don't typically do as good a job of reducing the file size, so most commonly used codecs are lossy.
The holy grail is a codec that gives maximum quality with minimum file size. Codecs are getting better all the time, but the perfect one has yet to be developed. First, the camcorder takes the video stream from the camera sensor and compresses it for recording.
A huge amount of information comes from the camera sensor, and it would be too much for a typical camcorder to try to record, so the camera compresses the data to make recordable video files. The codec is the format used to do this. Second, your editing software uses the codec to decode the video for playback and editing.
It reads the video file and plays it back as video. And finally, when you finish your video , you choose a codec for export so you can deliver your video for others to watch. You can use the same codec as the video was recorded in, or you can choose another, and your software will recompress the video into your chosen delivery codec.
Keep in mind that since most commonly used codecs are lossy, each recompression stage potentially degrades your footage even further, so you want to recompress as few times as possible. A number of codecs are in common use today. Some are best for recording , and some are best for display , or watching video.
It also commonly used for some Blu-rays. Codecs often used for display on the Internet are MP4 and H. These are highly efficient codecs which are often used for recording as well. These are all in the same family of codecs and work similarly. Most camcorders you will use record in one or more of these codecs, so the video you shoot will most likely be in these formats.
The codecs in the H. You can then record for longer periods of time and still enjoy a high level of quality. Even though these codecs all work similarly, you have a wide range of options for how they compress video. The different options give you different advantages, so you'll choose the one you want to use according to your specific needs. The video bit rate determines how much information is processed per second.
The higher the bit rate, the more information per second, and the higher the quality of the video. The bit rate largely determines the file size. A high bit rate can be very high-quality, but the file size will be much larger. A lower bit rate will produce a smaller file size, but the video quality will not be as high.
When recording your video, as long as you have adequate storage space, choose your bit rate based on the level of quality you need versus file size. If highest quality is most important to you, then you should choose a high bit rate. But if you need a longer recording time or smaller file sizes, you can choose a lower bit rate.
It's a constant trade off, and you have to decide which level of quality is acceptable compared to the resultant file size. Some cameras and NLEs give you the option to choose your color sampling , or the amount of color information retained in the video. Video you watch on TV or the Web usually uses color sampling, which gives you very good color. But there are other options with more color information, like The higher color sampling will mean a higher bit rate and larger file sizes, so you have a choice between better color or smaller file sizes.
The topic of what those numbers mean precisely gets into the realm of advanced color science, and is beyond the scope of this article, so for now you can simply use these guidelines. Do you want it to look live news or sports? Choose a faster frame rate like 50 fps or 60 fps. Do you want it to look fictional, like movies or TV? Choose a slower frame rate like 24 fps or 25 fps. As mentioned above, 30 fps is something in between.
You do want to choose timeline properties which match your footage — resolution and frame rate — but most NLEs will conform the timeline automatically to the first media clip you place on it.
Just put the footage on the NLE timeline, and then go right to export. No matter what format you choose to shoot with , and no matter what editing you did to the footage, your NLE will give you a full range of format options and templates for export. In order to know what to choose for export, you must know how your audience will watch the video. Are they going to watch it online such as on YouTube or Vimeo?
Are you going to stream it through Facebook or Instagram or other social media? Are you going to give your audience DVDs or Blu-ray discs? Or are you just going to give people video files for them to watch on video players? Each one has specific requirements. The most common online streaming sites prefer MP4 files. Both YouTube and Vimeo list their recommendations for creating files for upload to those sites. Vime o prefers H. The higher the bit rate, the higher the quality , and you will want the highest quality possible.
Both sites will re-process your video , and you need robust files so that your video comes out looking as good as it can. If your bit rate is too low, your video could break down and degrade during re-processing, resulting in poor-quality playback.
Social media sites like Facebook are similar; they will also list their recommendations. They will be a lot like those for YouTube and Vimeo, but may have file size limitations. In that case, you will want to find a format and bit rate which balances quality vs.
Facebook recommends a frame size of x , and Instagram has a maximum frame rate of 30 fps. With a few easy clicks, VEGAS Pro will automatically format your video according to YouTube or Vimeo or Facebook guidelines, render it, and upload it to your account, all in a single step. DVD is limited only to SD resolutions.
Most software will have export templates specifically for DVD export. Most often, you will want to use H. For both DVD and Blu-ray, be mindful of the storage capability of the discs. Most DVDs and Blu-ray discs can hold about two hours of video at the highest quality. If your program is longer than two hours , you may have to lower the quality by choosing a lower bit rate. Like above, this will be a matter of choosing a bit rate which gives you an acceptable level of quality for the file size you need.
Sometimes you just want to make a video file for someone to play on their computer or tablet. You can make your video as high-quality as you want, and the only limit is the storage space on the media card or thumb drive or file-sharing service you use. But your frame size, frame rate, and bit rate are totally up to you! Leverage the latest workflows and the power of your graphics card to accelerate your playback performance and rendering speeds.
For export, take control of your video through extremely customizable render templates , allowing you to dial in exactly what you need. Good to know: What is a video format? Choosing the right video format for you What format is best for sharing my video? Some of them center around video formats: What is a video format? How do I choose the right format for my project? What format is best for sharing my video?
Characteristics of Video. Color Sampling:. Frame Rate:. Bit Rate:. Bit Depth:. Audio Track:.
❿ ❿
No comments:
Post a Comment