[FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Ulf Zibis
Hi, does anyone know a good guide how to denoise mpeg2 videos, which come from VHS videos, recorded with DVD-recorder? My goal is to reduce the bit rate as much as possible. From my view, the most disturbing is the temporal noise. Some few videos in "long play" recordings too show heavy

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Carl Zwanzig
On 4/11/2021 3:10 AM, Ulf Zibis wrote: does anyone know a good guide how to denoise mpeg2 videos, which come from VHS videos, recorded with DVD-recorder? I assume you're stuck with the captures you already have, yes? (Most of the issues come from the analog world and ought to be fixed there-

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Ulf Zibis
Am 11.04.21 um 20:46 schrieb Carl Zwanzig: I assume you're stuck with the captures you already have, yes? (Most of the issues come from the analog world and ought to be fixed there- a TBC on the playback deck output, capturing YC outputs if available instead of composite, cleaning the

Re: [FFmpeg-user] ERROR: libglslang not found

2021-04-11 Thread Moritz Barsnick
On Thu, Apr 08, 2021 at 09:49:02 +1000, Dylan Fernando wrote: > g++ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE > -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -std=c11 > -fomit-frame-pointer -fPIC -pthread -D__STDC_CONSTANT_MACROS -c -o > /tmp/ffconf.j3rfnDQR/test.o

Re: [FFmpeg-user] -b:v option

2021-04-11 Thread Moritz Barsnick
On Thu, Apr 08, 2021 at 11:53:52 +, Mar Andrés López wrote: > I want to do this in order to generate a DASH content, one of the > profiles sould have the original bitrate, and the other ones fixed > values. As an example: Have you considered using the copy codec for the first profile? That

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Phil Rhodes via ffmpeg-user
> a TBC on the playback deck output Did anyone ever write a TBC filter in software? It might be a bit dependent on picture content, but it strikes me it ought to be possible to do something that would match up the horizontal position of rows of pixels by minimising contrast between adjacent

Re: [FFmpeg-user] Guide to denoise VHS videos

2021-04-11 Thread Carl Zwanzig
On 4/11/2021 12:41 PM, Phil Rhodes via ffmpeg-user wrote: Did anyone ever write a TBC filter in software? It might be a bit dependent on picture content, but it strikes me it ought to be possible to do something that would match up the horizontal position of rows of pixels by minimising contrast