12/3/2023 0 Comments Xmedia recode join files![]() Also the encoding settings can change the size (for example xmediarecode didn't use same settings as default cli, file size was >2x the size). Container overhead can be that large (Check the elementary stream if you're doing that). And for a simple gradient, it is lossless (You can re-encode with CRF1 and PSNR is infinity)īe careful about just looking at the "filesize" only especially when it's just 1 frame, ~5Kb. "Lossless mode" isn't as widely supported in other programs, NLE's etc. Could you still please post your 10bit gradient test video here ? It's easy enough, even for beginners, to measure filesize and check for 10bit output in MediaInfo.Īlso why not use the encoder Lossless mode (x265 -lossless, x264 crf=0) ? I check end to end tests for various workflows (e.g. ![]() OK, I can imagine that the difficulty may in fact be analyzing the result rather than generating a gradient. Note on "real" content, the "ballooning" size won't be so drastic, but it's still suboptimal if you start with 10bit content Handbrake output >10x the size mainly because of the dithering, and gaps in the data (0,4,8) when you examine it. Handbrake "10bit" 2nd generation x265 crf 1 76kb Handbrake "10bit" 2nd generation x264 crf 1 70kb Xmediarecode 10bit x264 2nd generation crf 1 (same settings) 5kb X264cli 10bit 2nd generation crf 1 5kb (output PSNR actually lossless CRF1) I think some GUI's like staxrip canĠ-1023 gradient original produced at crf1 5kb ![]() Xmedia can preserve 10bit if you set it up correctly but I see no way of preserving the HDR metadata automatically. When you test - it dithers the intermediate stage (functions like noise to "hide" the banding), so it doesn't look as bad on a gradient as no dither - but the filesize balloons up because of the dithering Handbrake/vidcoder definitely uses an 8bit intermediate stage this is well documented. If there is an 8bit step, you will get gaps in the data such as 0,4,8, instead of 0,1,2,3,4,6,7,8, which of course results in more banding, less accuracy, worse compression You can also set the codec, bit rate, resolution, frame rate, sample rate and channel of the output video, as well as take snapshot of video still images (PC gamers will be happy for that) and select your favorite audio track and subtitle in case of multiple subtitles and audio tracks.īEST FREE (& some even PORTABLE) ALTERNATIVESYou can test it with a 10bit gradient. Very easy to use, good speed conversion (supports multithreading and batch conversion) and excellent output quality: in my view this tool is far above average and deserves being installed in your system if you love convert HD movies to your portable devices with no hassle (supports iPhone, iPad, Samsung Galaxy.Kindle Fire, Google Nexus, Lumia, iPod Touch, Apple TV, HP TouchPad, PSP, PS3, BlackBerry, Wii, NDS, Creative ZEN, Xbox 360, iRiver etc.).Ĭan also extract audio from videos, enabling you to personalize your videos with special effects like 3D grid, pictures or text watermark with customized transparency.Īnd it sports pretty much advanced VIDEO EDITING features as well, such as the ability to cut off unwanted borders from a video frame, change video size to fit your screen, deinterlace video, trim video file into several clips or join multiple video files into one single file, giving users the possibility to compare the edited video with the original one.
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