Tag Info

New answers tagged

1

I have seen this also with libfdk_aac and x264 and am not sure what causes it but I have had success using the itsoffset flag like this: ffmpeg -itsoffset 0.046440 -i original.wav -c:a libfdk_aac -vbr 5 ffmpeg.m4a


1

After a few hours of searching, I was only able to find this. I don't know if that's kind of what you are looking for, or at least gives you the info you need to modify the channel volume. I hope it helps!


1

So it turns out after a lot of research that this is the desired behaviour for Apple's AVPlayer component. Basically, my Internet is so slow here where I live, the component waits until the video has fully downloaded before it starts playing. The best and recommended way around this, is to generate alternate streams for the video before trying to play it. ...


2

x264 must be compiled with --bit-depth=10. Note that the resulting build will not be able to output 8-bit depth. Of course you can have separate builds, but whatever build ffmpeg is linked to will determine what bit depth it can output.


0

Your paper is asking for an impossible data point unless you have some method of evaluation specified. By definition, lossy compression results in a loss of data. Modern lossy compression is very good at discarding data that is not visually meaningful to people, but it is still discarding data. The amount of data loss when related to a human viewer is ...


2

You could possibly use the curves filter. It has a lighter preset: ffmpeg -i input -vf curves=preset=lighter -c:a copy output The red, green, and blue components can be adjusted separately. The following is the same as what the lighter preset uses: curves=r='0.4/0.5':g='0.4/0.5':b='0.4/0.5' Additionally you can make your own curves preset in ...



Top 50 recent answers are included