[FFmpeg-user] filters zoompan and crop

Hi, Does zoompan not work outside the range 1 .. 8? I want to generate an overlay to zoom in, have the input png start small, and grow to half the video size, like from 20 to 320 in width. Starting the zoompan at z=0.1 does not seem to work. Also if the first filter was successful, I need to cro

Re: [FFmpeg-user] filters zoompan and crop

Jim DeLaHunt wrote: . I want to generate an overlay to zoom in, have the input png start small, and grow to half the video size, like from 20 to 320 in width. Starting the zoompan at z=0.1 does not seem to work. Take a look at the *pad* filter . That gene

[FFmpeg-user] concat with differing tbn in h264 streams

Hi, I am getting problems creating a single video from different cameras. I first convert each to the desired size and codecs, so that the concat function will work. But the video codecs are still not exactly the same, and thus the output is getting errors and dropped video frames with time st

Re: [FFmpeg-user] concat with differing tbn in h264 streams

Carl Eugen Hoyos wrote: The input streams have different frame rates, use the -r option when encoding the input files (or use setpts if you prefer not to drop / duplicate frames). Hi Carl, Right, I used -r on file# 3: ~/camera/solar/editing$ ffmpeg -i 20160916_0601_Conpus-250A-stressTest_trip

Re: [FFmpeg-user] concat with differing tbn in h264 streams

Carl Eugen Hoyos wrote: The correct value is "-r 3/1001" and you should probably use it on all three sources. Perfect, thank you. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscrib

[FFmpeg-user] error in make test

Hi, I have current ffmpeg by git, updated yesterday, running on Debian desktop. I was successful in configure, make, and make install, but when trying to get ass to work (not the issue for this email) I ran make test and it stopped with this error, and it looks reportable to me, and I can't ge

[FFmpeg-user] current ffmpeg creates shortened audio stream when filter amix

I am getting a shortened audio stream when including the audio filters aresample and amix, which later makes it impossible to concat the clips, because the different stream lengths lose sync between audio and video, with errors: Invalid audio PTS First, here is the output from latest ffmpeg in

Re: [FFmpeg-user] current ffmpeg creates shortened audio stream when filter amix

Moritz Barsnick wrote: Hi Stewart, On Mon, Sep 30, 2019 at 12:48:31 -0700, S Andreason wrote: Moritz Barsnick wrote: On Sun, Sep 29, 2019 at 10:38:33 +0200, Paul B Mahol wrote: Stewart, it helps if you leave away the parts of the video filter which aren't relevant to the issue (assumin

Re: [FFmpeg-user] error in make test

Carl Eugen Hoyos wrote: Am Sa., 28. Sept. 2019 um 21:01 Uhr schrieb S Andreason : TESTlavf-gray.fits --- ./tests/ref/lavf/gray.fits2019-06-30 20:40:14.0 -0700 +++ tests/data/fate/lavf-gray.fits2019-09-28 10:42:08.360464015 -0700 @@ -1,3 +1,3

[FFmpeg-user] ffmpeg timestamps, offsets, and frame count

Hi, I am having trouble combining a video and a gif. complete command and console output, starting with the source video made by the camera: Mobius Maxi: $ ffprobe 20190913_144617_driveway-Acoustimeter_USPS_0.12Vm_753uWm2_FHDw.MOV ffprobe version N-95997-g9f7b2b37e3 Copyright (c) 2007-2019 the

Re: [FFmpeg-user] ffmpeg timestamps, offsets, and frame count

S Andreason wrote: 1. frame# as n, or at playback and pressing the keys for back to beginning, does not start until 0.566 for frame # 0 because (I think) the source video has an audio offset. This makes problem#1 affect all future edits. 2. How can I override the timing, and just copy frame

Re: [FFmpeg-user] How to get DVB-Teletxt into MP4

Carl Eugen Hoyos wrote: ffmpeg -ss 00:04:45 -i 'Beck_ _je for _je (4).ts' -to 00:05:00 -c copy sample.ts NO! Don’t use ffmpeg to cut your samples, avoid it at all costs! dd is your friend. ___ ffmpeg-user mailing list Seriously? ffmpeg-user says

[FFmpeg-user] gif overlay miscalculating x and y, extra frame flash

Hi, I continued building and rendering after asking some questions last week. After 6 days x10 hours per day of (render,test,measure,edit,repeat) I finally was able to publish my video. In doing so I made it easy to duplicate the bugs I have been seeing. I have put the 7 files together in one

Re: [FFmpeg-user] gif overlay miscalculating x and y, extra frame flash

Paul B Mahol wrote: On 2/9/20, S Andreason wrote: The issue is with -i gif and overlay=x=(calculations):y=(calculations):between 1. between calculates n differently than the 30fps video, No, it is completely correct, you give it different timebase and fps video inputs. overlay video is 33.33

[FFmpeg-user] amix fills 16Gb memory, ffmpeg killed

Hi, I am trying to join 11 video files, each 3 minutes in length. I can get the video rendered correctly, where the audio only lasts 3 minutes from input 0. But when I add the amix filter, it fills 16Gb of memory in 2 minutes and gets it's process killed. The full command line and output, bef

[FFmpeg-user] concat fails in current build with Mobius videos

Hi, I am seeing what looks like a regression bug in concat. It stops after the first file, and this only appeared when the input files are from the older Mobius camera. I get the same error trying a version of ffmpeg I built 2019-12-09. But ffmpeg-3.3 from 2017 DOES work, and switching over to

Re: [FFmpeg-user] concat fails in current build with Mobius videos

Carl Eugen Hoyos wrote: Please either run git bisect yourself or provide a reproducible testcase for us. I can provide a reproducible sample. https://www.seahorsecorral.org/videos/tests/20200227_1039_panorama-canyon-snow-lowres_rec_1504.mov The resolution was not a factor, and repeating a singl

Re: [FFmpeg-user] amix fills 16Gb memory, ffmpeg killed

Lou Logan wrote: On Thu, Feb 27, 2020, at 7:50 AM, S Andreason wrote: Hi, I am trying to join 11 video files, each 3 minutes in length. I can get the video rendered correctly, where the audio only lasts 3 minutes from input 0. But when I add the amix filter, it fills 16Gb of memory in 2 minutes

[FFmpeg-user] ffmpeg-2.4 creates grey screen, corrupted videos

Hi, After upgrading mplayer to 2.4, I was unable to play h264 videos with the tag major_brand=qt made by several cameras. I discovered that I could create a h264 file using ffmpeg-1.0.1 and x264 (yesterday's snapshot), and recreate the mplayer problem. Since this version of ffmpeg is old (but

Re: [FFmpeg-user] ffmpeg-2.4 creates grey screen, corrupted videos

Carl Eugen Hoyos wrote: What does 'upgrading mplayer to 2.4' mean? Oops. Aspie made one typo. Meant 1.1.1 http://seahorseCorral.org/videos/tests/20140128_pond-W_rec10990.mov I tested the following command line: $ ffmpeg -i 20140128_pond-W_rec10990.mov -s 640x360 -qscale 2 -acodec

[FFmpeg-user] concat loses 2 frames or freezes up video

Hi, I'd like to report a problem with concat in ffmpeg. When a mini camera like the 808 or Mobius is configured to loop-record and save short files, the need to re-assemble them together is the basis for this issue. The 3 minute setting has an overlap of one second, (the length of each file is

Re: [FFmpeg-user] concat loses 2 frames or freezes up video

Moritz Barsnick wrote: On Sun, Dec 07, 2014 at 14:15:37 -0800, S Andreason wrote: Test instructions, sample file names and locations, plus debug output, are uploaded to: http://seahorseCorral.org/videos/tests/ffmpeg-concat-test-instructions.txt Waiting for questions? Thank you

Re: [FFmpeg-user] concat loses 2 frames or freezes up video

> Never-the-less, trying to concat certain files that appear whole and intact with all I/P/B frames, does cause a couple problems, with several files, about 10% of the ones I tested. > The input files used for these tests, can be found at: > http://seahorseCorral.org/videos/tests/20141107_4

Re: [FFmpeg-user] Image sequence naming convention

Andreas Weller wrote: I did a bunch of camera shots with my raspberry pi camera. In my script I use the following naming scheme for the files created: `date --iso-8601=seconds`.jpg Now I would like to further process them with ffmpeg. What's the correct way to call ffmpeg with these files? Most

[FFmpeg-user] can not clip/trim some files made by ffmpeg same version

After starting with a raw camera file, after I process it by resizing and/or cropping etc, using the h264 codec, When I later try to use that output file as an input file for further processing, (intending to trim the length and starting time) it gives an error and drops the video stream. Two

[FFmpeg-user] clipping bug on h264 files made by ffmpeg same version

I didn't get any reply to my Jan22 report, so I'm sending this again with working examples, and freshly compiled ffmpeg code: After starting with a raw camera file, after I process it by resizing and/or cropping etc, using the h264 codec, When I later try to use that output file as an input file

Re: [FFmpeg-user] clipping bug on h264 files made by ffmpeg same version

Werner Robitza wrote: I didn't get any reply to my Jan22 report, so I'm sending this again with working examples, and freshly compiled ffmpeg code: Good report, but have you considered posting an official bug report? => https://trac.ffmpeg.org No, I was not aware of that website. Than