Search found 62 matches

by richardpl
Wed Mar 25, 2020 3:40 pm
Forum: Usage
Topic: How to create video cross fade filter?
Replies: 9
Views: 3621

Re: How to create video cross fade filter?

It is not trivial, and results are very slow to process.

What kind of transition you actually seek?
by richardpl
Wed Feb 05, 2020 4:01 pm
Forum: Usage
Topic: How to create video cross fade filter?
Replies: 9
Views: 3621

Re: How to create video cross fade filter?

Stop using very old ffmpeg versions for once.
by richardpl
Tue Feb 04, 2020 5:45 pm
Forum: Usage
Topic: How to create video cross fade filter?
Replies: 9
Views: 3621

Re: How to create video cross fade filter?

Use xfade filter instead.
by richardpl
Wed Jan 22, 2020 9:09 am
Forum: Suggestions
Topic: Adding build module Gl Transitions support ?
Replies: 5
Views: 5614

Re: Adding build module Gl Transitions support ?

Why are you building evil FFmpeg incarnations, i will sue you!

Please give real user name so I can send DMCA.
by richardpl
Sat Oct 26, 2019 4:38 pm
Forum: Suggestions
Topic: Adding build module Gl Transitions support ?
Replies: 5
Views: 5614

Re: Adding build module Gl Transitions support ?

That module is insecure to use. So answer is no.
by richardpl
Sat Oct 26, 2019 4:37 pm
Forum: FFmpeg Examples
Topic: Video bit depth
Replies: 4
Views: 5841

Re: Video bit depth

zscale also does pixel format conversion between planar formats.
by richardpl
Sat Oct 19, 2019 9:01 am
Forum: Suggestions
Topic: Adding build module Gl Transitions support ?
Replies: 5
Views: 5614

Re: Adding build module Gl Transitions support ?

It is never gonna be added.
by richardpl
Sat Sep 21, 2019 5:55 pm
Forum: Usage
Topic: Help with plugging in values for the AIIR filter?
Replies: 1
Views: 772

Re: Help with plugging in values for the AIIR filter?

You can use two cascaded biquad filters for such simple coefficients. Make sure that a coefficients are really a and not b and vice versa.
by richardpl
Wed Jul 10, 2019 1:49 pm
Forum: Usage
Topic: showspectrumpic and background color
Replies: 5
Views: 1340

Re: showspectrumpic and background color

Consider donating to FFmpeg for this addition.
by richardpl
Sat Jul 06, 2019 5:42 pm
Forum: Usage
Topic: Apply BiQuad filter to wav at certian timespans
Replies: 12
Views: 2292

Re: Apply BiQuad filter to wav at certian timespans

He can do FFT with afftfilt at expense of huge latency, just set bins he want to 0 (or better to multiply values with very small factor greater than zero). Also he may need huge window size to have good resolution. On another hand afir have options to control latency and performance of filtering no ...