[FFmpeg-user] preserve creation time

2019-04-26 Thread Sian Doherty
Hi, Is it possible to preserve the creation time of an avi when adding metadata info such as comment, copyright etc using ffmpeg in batch. I want to rename the files using the date time original and a tool called exiftool but i want to record the original filename information first in the

Re: [FFmpeg-user] PGM files are loading extremely slow

2019-04-26 Thread Paul B Mahol
On 4/27/19, Michael Koch wrote: > Hi, > > I'd like to report a problem when loading large PGM files, which are > required for the remap filter. > These files are loading extremely slow in the latest ffmpeg version. > Much slower than a few weeks before. > I found out that the problem began

[FFmpeg-user] PGM files are loading extremely slow

2019-04-26 Thread Michael Koch
Hi, I'd like to report a problem when loading large PGM files, which are required for the remap filter. These files are loading extremely slow in the latest ffmpeg version. Much slower than a few weeks before. I found out that the problem began between April 10 and 11. The PGM file that I

Re: [FFmpeg-user] extract frames every n frames

2019-04-26 Thread francesco piasentini
Is working fine. I'm working on a video that's a basically a slideshow of images morphing through different steps. frame 1: step 1 frame +8: step 2 +7 frames: step 3 +6: step 4 +8: step 5 .. +7: step n So the number of frames between animation steps is variable, randomly, with a media of 7. If I

Re: [FFmpeg-user] extract frames every n frames

2019-04-26 Thread Moritz Barsnick
On Fri, Apr 26, 2019 at 14:54:07 +0200, francesco piasentini wrote: > Thanks Moritz! > it worked out very well: Nice! > .\ffmpeg -i input.wmv -ss 00:00:12.000 -vf select='not(mod(n\,7))' -vsync > vfr -compression_algo raw -pix_fmt rgb24 output.tiff -hide_banner > > is there the possibility to

Re: [FFmpeg-user] extract frames every n frames

2019-04-26 Thread francesco piasentini
Thanks Moritz! it worked out very well: .\ffmpeg -i input.wmv -ss 00:00:12.000 -vf select='not(mod(n\,7))' -vsync vfr -compression_algo raw -pix_fmt rgb24 output.tiff -hide_banner is there the possibility to have a grayscale 8bit output? best wishes f Il giorno gio 25 apr 2019 alle ore 00:57

Re: [FFmpeg-user] Error while decoding stream

2019-04-26 Thread Moritz Barsnick
On Fri, Apr 26, 2019 at 13:23:14 +0300, Ivan Kirillov wrote: > https://i.gyazo.com/a5beb3f0798b7423d2bb7e773b0521c1.png > here is an outpot after start (You should copy the text from the console into the email instead of creating a screenshot.) You are using a very old version of ffmpeg. Please

Re: [FFmpeg-user] Error while decoding stream

2019-04-26 Thread Ivan Kirillov
https://i.gyazo.com/a5beb3f0798b7423d2bb7e773b0521c1.png here is an outpot after start 26.04.2019 1:01, Carl Zwanzig пишет: On 4/25/2019 5:21 AM, Ivan Kirillov wrote: pls explain to me how can i fix this ? pls (please) post the command output; it's OK to remove some duplicate lines but