Recommendations about FFmpeg filters to enhance video quality or fixes

mapg · 1st June 2021, 05:54

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 · 1st June 2021, 07:44

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 · 1st June 2021, 13:10

Talking about audio you have a couple of sample filters in the [FFMEG] section of file Vid_enc.par attached here:

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

mapg · 1st June 2021, 21:14

Quote:

Originally Posted by 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...

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 · 1st June 2021, 21:16

Quote:

Originally Posted by tebasuna51

Talking about audio you have a couple of sample filters in the [FFMEG] section of file Vid_enc.par attached here:

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

Thanks a lot.

A good list of things to research for audio.

I needed all those kinds of ideas!!

Best regards,

Mapg

1st June 2021, 05:54	#1 \| Link
mapg Registered User Join Date: Dec 2014 Posts: 8	Recommendations about FFmpeg filters to enhance video quality or fixes 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 Last edited by mapg; 1st June 2021 at 06:01.

1st June 2021, 07:44	#2 \| Link
FranceBB Broadcast Encoder Join Date: Nov 2013 Location: Royal Borough of Kensington & Chelsea, UK Posts: 2,904	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... __________________ LUT Collection FFAStrans Videotek - AAA - SafeColorLimiter

1st June 2021, 13:10	#3 \| Link
tebasuna51 Moderator Join Date: Feb 2005 Location: Spain Posts: 6,915	Talking about audio you have a couple of sample filters in the [FFMEG] section of file Vid_enc.par attached here: 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 __________________ BeHappy, AviSynth audio transcoder.