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16

You can encode to Theora video and Vorbis audio with ffmpeg if it has been compiled with --enable-libtheora and --enable-libvorbis. Depending on your ffmpeg version the default settings may not provide good enough quality. Therefore you must add some additional parameters to enable a constant quality type of mode for the video. Theora video Adjust video ...


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I've answered a similar question some time ago. YouTube added a few codecs since then but all the info there still applys: How does YouTube encode my uploads and what codec should I use to upload? Short answer: Yes if you are concerned about maximum quality a lossless codec or visually lossless codec is the way to go. Re-encoding always means loss of ...


2

Fixed by updating FFMpeg to newer version


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You should upload the highest quality your tubes can afford. The current YouTube help text on uploads is misleading. It states: Your videos will process faster if you encode into a streamable file format. For more information, visit our Help Center. It contradicts what Colleen Henry, formerly of Google, now at Facebook said: Colleen Henry, Video ...


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You need to make sure your artwork is at least 720x1280 in size. Then open a video editing package like Adobe Premiere, Final Cut, or an animation package like After Effects. Create a project with a canvas of 720 x 1280 pixels, and drag your artwork into it. Make the timeline 10 seconds in duration (set in and out points on your timeline). Export your ...


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Here are my starting premises. In the scientific community, There are some standards in the assignation of letters for units. Normally a capital letter is assigned if the unit cames after the last name of a person, like Kelvin or Newton, and a lowercase letter in the case of just words like the case of a meter. In the case of the liter, where it is not ...


1

Without an example it's hard to say, but I think perhaps sometimes people just hold up their camera and film, they can't or don't frame the shot or adjust the zoom, they're often standing in one place and can't get closer to line up a good shot. Also lighting is super important for good video, unless it's filmed during the daytime in sunlight, the quality ...


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If all you need to do is superscale an image, going through the trouble of training neural networks is re-inventing the wheel. By all means, if you're studying computer science and are interested in AI/ML, I'd encourage you to look into it, but to just superscale an image, you don't need to train a neural network. There are tools available. In DaVinci ...


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Your viewport preview is set to Quarter resolution (see just below the preview video). Set it to full. Depending on your machine, preview may not be fluid. This setting only affects the preview.


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Compression by default is removing information. “Lossless” compression, if repeated, will indeed result in degradation after a few generations. Higher compression rates will degrade after fewer generations.


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Lossy codecs such as x264 degrade the image quality by design, if you don't want to lose image quality you either have to use a lossless codec or better yet, not re-encode at all. I assume the source material is either H.264 or MPEG-2, so the best solution in your case would be to simply copy all the streams into the new container: ffmpeg -i input.flv -c ...


1

There are charts on their website, but in short, the Black allows for 4k recording, 60 mbps bandwidth, higher frame rates at various resolutions, simply put, it has a larger bottleneck enabling it to capture more data. I would suspect the cameras may be perhaps identical, and are firmware locked down into lower levels for the less expensive versions. ...


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As you can imagine, a file that is compressed from 1.96gb to 100mb has lost a lot of information. The question is what you need to do with this film now. If you want to make a version to be shown in cinemas, that's not going to work well since you probably will see compression artifacts etc on a big screen. If you need to create a Sd DVD from it, probably ...


1

The PS3 is very picky on what it plays and what not. I had the same problem as you (again with an OpenShot video) Solutions 1)Use http://www.ps3mediaserver.org/ that automatically transcodes to formats for PS3 2)Convert your existing video to PS3 format with https://handbrake.fr/


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You can use the Free FFmpeg Mux/Demux... Type onto ffmpeg/bin the following ffmpeg.exe -i artwork.jpg -vcodec h264 -s 720x1280 -aspect 16:9 -ss 0 -t 10 -b 3072k outputvideo.mp4


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You have to check the specification of your camera. 30Mb/s could be plenty for 60fps 4k or not enough for 24p SD, entirely depending on what format and data rate is being used. Your camera should say the data rate of whatever you intend to record in. Use that to determine the needed card speed. Make sure that the write speed is actually what you need as ...


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Ultimately youtube is thinking about upload quality versus upload speed. If someone tries to upload lossless on a less-than-amazing internet connection, they'll get frustrated and quit. If they upload with a lossy codec which is less-than-satisfactory (eg. motion-jpeg or mpeg2) they'll either take a long time to upload, have a poor quality end result, or ...


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Ok, now that I'm home I think I see what you are noticing. That is just an error with the block transitioning from black to white. You can either slow down the fade or increase the keyframe frequency. H.264 works by storing only certain frames and then storing the change in-between. It breaks the image in to sections to analyse and so you can see if you ...


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