The Great Joy 60mm T2. Apple's flagship M1 Max MacBook Pro offers a combination of performance, efficiency, build quality, and screen quality that you cannot find in any PC on the market, full stop. What's the best camera for shooting landscapes? High resolution, weather-sealed bodies and wide dynamic range are all important. In this buying guide we've rounded-up several great cameras for shooting landscapes, and recommended the best. If you're looking for the perfect drone for yourself, or to gift someone special, we've gone through all of the options and selected our favorites.
These capable cameras should be solid and well-built, have both speed and focus for capturing fast action and offer professional-level image quality. Although a lot of people only upload images to Instagram from their smartphones, the app is much more than just a mobile photography platform. In this guide we've chosen a selection of cameras that make it easy to shoot compelling lifestyle images, ideal for sharing on social media. Submit a News Tip! Reading mode: Light Dark.
Login Register. Best cameras and lenses. All forums Digital Video Talk Change forum. Started Mar 20, Questions. Forum Threaded view. Mar 20, Can someone explain this please? Reply to thread Reply with quote Complain. DMKAlex wrote: Can someone explain this please? Reply Reply with quote Reply to thread Complain. Since 2 pass requires twice the time to render, is there any distinct benefit over 1 pass?
Thank you very much. I think I am going to stick with the 1 or 2 pass VBR then. Osman Vielma wrote: I tried all 3 options VBR 2 pass, 1 pass, and CBR all, more or less, took the same time 5 minutes to recode a long video and got the, more or less, the same file size 18 MB , the only difference was, VBR 2 pass was definitively better quality.
Though not evident from our experiments, CBR encodes infrequently produce transient quality drops when the encoder sacrifices short-term quality to meet the target bitrates. For this reason, most producers avoid CBR whenever possible. Most digital broadcast streams are encoded using CBR because the streams are transmitted through fixed bandwidth connections with a low tolerance for stream variations. During the early years of streaming, when producers attempted to deliver video to Today, because the average video download speed in the U.
In a live workflow , you have to choose in your on-site streaming encoder and your transcoder. In video on demand VOD workflows, you have to choose when encoding the files for upload to your streaming server. Though one-pass VBR encoding is possible, VBR is most effective when the encoder can scan the entire file and identify the hard-to-encode and easy-to-encode regions.
In addition, when encoding onsite for streaming to the cloud for transcoding and packaging , producers often work with tight outbound bandwidth constraints. In these instances, you want very tight control over your outbound bitrate because data rate spikes could exceed available bandwidth and stop the outbound stream. Most producers prefer CBR for cloud transcoding of live streams because it keeps outbound bandwidth requirements relatively consistent.
Remember that all viewers of a live stream watch the same bits at the same time. Therefore, in order to ensure a reliable, convenient and efficient conversion, this article will vulgarly explain the difference between CBR and VBR.
CBR means Constant Bitrate, the bit rate remains constant in a fixed value during the video encoding, e.
Based on this, CBR is the most effective solution for online video streaming. Think about it, if there is the limited bandwidth on some streaming platforms that matters the maximum bit rate, CBR encoding will take full advantage of the capacity to reach the best quality. However, CBR is not suitable for local multimedia storage, because CBR will result in insufficient bitrates to encode complex video scenes thus leading to quality degradation , while some bitrates will be wasted on simple scenes.
As its name implies, the video bit rate can vary with the complexity of the image, so the video encoding in VBR mode is very efficient with high quality but smaller file size. That is to say, during a VBR video encoding, the video bitrate will dynamically go higher or lower based on the changes of different parts, increased for complex scenes and decreased for simple scenes, which will save storage space.
So VBR is quite suitable for local multimedia storage. VBR encoding seems pretty good, huh? This user-friendly program will simplify some editing or setting process, and is simple enough to pick up quickly for zero-based beginners. Why not download and experience it by yourself?
Constant video bit rate, fixed quality. Faster encoding speed. Useful for multimedia streaming. Better compatibility. Better quality-to-space ratio.
Flexibly adjust bit rate to meet different scenes. Useful for local multimedia storage.
0コメント