Recommendations about FFmpeg filters to enhance video quality or fixes

[mapg]

Hi all,

I am developing a web application using FFmpeg, and I would like to know your recommendations about what filters (to be implemented as presets) my users could use to enhance the video image quality and fix the common video problems.

I have in mind for example to use the "Automatic Levels" filter (using "pp=al"), "Audio Level Normalization", some "Denoise" filter, and "Deinterlacing" filter.

But as you can see I only have in mind 4 filters while FFmpeg has a lot of them.

What filters could I add to a Set of Presets for my users? Something useful. Like a Set of Swiss Army Knife tools.

I am looking forward to hearing your recommendations.

Any other tool or fix is good too, even using other software in the shell. No problem.

Thank you very much in advance!!

Mapg

[FranceBB]

Cover automatic resizing respecting AR, deinterlace, Bob deinterlace and IVTC, frame rate conversion with either blending or speed up + pitch adjustment or linear interpolation according to the use case, cover matrix conversion, cover clipping and loudness, channel mapping and remuxing, THEN AND ONLY THEN you can try to start focusing on other things...

[tebasuna51]

Talking about audio you have a couple of sample filters in the [FFMEG] section of file Vid_enc.par attached here (https://forum.doom9.org/showthread.php?p=1259686#post1259686):

delay, trim, edit, split/remap Channels, slowdown/speedup changing/preserving pitch, downmix 7.1-5.1/5.1-2.0/DplII, volumedetect/volume (Audio Normalization preserving DRC), extract core from DTS/TrueHD

About Audio Normalization changing the DRC you have dynaudnorm (http://ffmpeg.org/ffmpeg-filters.html#toc-dynaudnorm)

[mapg]

Cover automatic resizing respecting AR, deinterlace, Bob deinterlace and IVTC, frame rate conversion with either blending or speed up + pitch adjustment or linear interpolation according to the use case, cover matrix conversion, cover clipping and loudness, channel mapping and remuxing, THEN AND ONLY THEN you can try to start focusing on other things...

Amazing set of things!

To be honest, I will need to research some of them because it's a very professional tunning, but thank you very much, indeed.

I will research IVTC firstly.

I hope you don't mind if I ask you some extra quick questions.

Thanks in advance!!

[mapg]

Talking about audio you have a couple of sample filters in the [FFMEG] section of file Vid_enc.par attached here (https://forum.doom9.org/showthread.php?p=1259686#post1259686):

delay, trim, edit, split/remap Channels, slowdown/speedup changing/preserving pitch, downmix 7.1-5.1/5.1-2.0/DplII, volumedetect/volume (Audio Normalization preserving DRC), extract core from DTS/TrueHD

About Audio Normalization changing the DRC you have dynaudnorm (http://ffmpeg.org/ffmpeg-filters.html#toc-dynaudnorm)

Thanks a lot.

A good list of things to research for audio.

I needed all those kinds of ideas!!

Best regards,

Mapg