Re: [FFmpeg-user] Question regarding "Thread message queue blocking"

> Am 10.03.2021 um 07:01 schrieb : > > I have a question Please (test current FFmpeg git head, the only version supported here, and) provide the command line you tested together with the complete, uncut console output as text, do not attach images. Carl Eugen ___

Re: [FFmpeg-user] How to scale FFmpeg

> Am 12.03.2021 um 08:27 schrieb : > > I'm trying to run the following command: When asking questions on this mailing list, please do not attach screenshots of your console output, instead post the command line you tested (without using the hidebanner option!) together with the complete, unc

Re: [FFmpeg-user] How to pipe png output from FFmpeg into cavif.

> Am 15.03.2021 um 16:17 schrieb bat guano : > > How do I make FFmpeg send it's png output to stdout? -f rawvideo -vcodec png - FFmpeg accepts such streams as input, other programs may fail. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpe

Re: [FFmpeg-user] [FPGA HEVC Encode Plugin] Tutorial and Performance Review

Am Fr., 19. März 2021 um 08:56 Uhr schrieb tai truong : > Sorry for my first naive question. As googling, I found some talk about > fpga hevc encode plugin for ffmpeg from Xilinx. I have no idea if this is your question but a patch is attached to this ticket: https://trac.ffmpeg.org/ticket/7214

Re: [FFmpeg-user] ffmpeg srt to udp

Am Di., 16. März 2021 um 13:28 Uhr schrieb Javier Fuentes : > ffmpeg -i "srt://xx.xx.xx.xx:9002?mode=listener" -map 0 -codec copy -tune > zerolatency -f mpegts udp://xx.xx.xx.xx:9000?pkt_size=1316 (-tune zerolatency looks disturbing here...) Complete, uncut console output missing. It should be

Re: [FFmpeg-user] Repeatable output?

Am Sa., 20. März 2021 um 22:10 Uhr schrieb amindfv--- via ffmpeg-user : > > When can I expect the output of ffmpeg to be byte-for-byte identical > across runs given the same input and command-line flags? Command line and complete, uncut console output missing but "real" encoders do not to produce

Re: [FFmpeg-user] libaom - first frame not lossless when > 7 frames in source

Am Sa., 6. Juni 2020 um 21:05 Uhr schrieb Kieran O Leary : > I was doing some tests with libaom and lossness encoding and with synthetic > files and some real world files, I kept finding that the framemd5s for the > first frame was different than the source, but every other libaom encoded > frame

Re: [FFmpeg-user] Recorded Frame Timestamps are Inconsistent! How to Fix it?

Am So., 21. März 2021 um 22:13 Uhr schrieb Mark Filipak (ffmpeg) : > I think '-framerate 60' may not be needed at all. It is only needed if 60fps recording is wanted. As said before, setpts should generally be avoided and this is even more true for settb. If you have to smooth timestamps, use th

Re: [FFmpeg-user] Recorded Frame Timestamps are Inconsistent! How to Fix it?

Am So., 21. März 2021 um 23:31 Uhr schrieb Mark Filipak (ffmpeg) : > > On 2021-03-21 17:50, Carl Eugen Hoyos wrote: > > Am So., 21. März 2021 um 22:13 Uhr schrieb Mark Filipak (ffmpeg) > > : > > > >> I think '-framerate 60' may not be needed at all. >

Re: [FFmpeg-user] Recorded Frame Timestamps are Inconsistent! How to Fix it?

Am So., 21. März 2021 um 23:55 Uhr schrieb Mark Filipak (ffmpeg) : > > On 2021-03-21 18:36, Carl Eugen Hoyos wrote: > > Am So., 21. März 2021 um 23:31 Uhr schrieb Mark Filipak (ffmpeg) > > : > >> > >> On 2021-03-21 17:50, Carl Eugen Hoyos wrote: > >>

Re: [FFmpeg-user] Recorded Frame Timestamps are Inconsistent! How to Fix it?

Am Mo., 22. März 2021 um 14:51 Uhr schrieb Hassan : > > ffmpeg -f gdigrab -i desktop > > -vf "settb=expr=1/72, setpts=N*12000, fps=60" This filter chain looks either useless or broken. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.or

Re: [FFmpeg-user] Recorded Frame Timestamps are Inconsistent! How to Fix it?

Am Mo., 22. März 2021 um 20:36 Uhr schrieb Hassan : > Given the discussion above and the question under discussion, can you > please give a command to achieve the accurate timestamping of the frames? You should start with something like the following: $ ffmpeg -f gdigrab -i desktop -vcodec libx26

Re: [FFmpeg-user] Impossible to convert between... formats... 'Parsed_null_0' and 'auto_scaler_0'

Am Mo., 22. März 2021 um 13:33 Uhr schrieb Andrews, Vincent : > We are trying to setup ffmpeg on a CentOS7 system without hardware > acceleration so that we can convert *.mov files to *.mp4. > > ffmpeg V4.3.2 was configured with: Please test current FFmpeg git head, if you use a precompiled bina

Re: [FFmpeg-user] How to use the diff of palettegen with screen capturen

Am Mi., 24. März 2021 um 08:38 Uhr schrieb jun li : > > ffmpeg -f gdigrab -framerate 30 -i desktop -ss 1 -lavfi > palettegen=stats_mode=*diff*:transparency_color=ff[pal],[0:v][pal]paletteuse=new=1:dither=bayer:bayer_scale=1 > default.gif This is not how palettegen / paletteuse work, see: https

Re: [FFmpeg-user] Split stream in equal chunks

Am Do., 25. März 2021 um 08:03 Uhr schrieb Marian Klymov : > > I want to receive rtmp stream (using nginx-rtmp module), transcode > it and save it in chunks. > I would like to have splitting at specific times and to have all chunks > equal to 30.00 seconds (except first and last obviously). I've tr

Re: [FFmpeg-user] ffmpeg bottleneck, thread-safe ?

Am Do., 25. März 2021 um 17:04 Uhr schrieb : > 76 vCPUs (Skylake Gold 6161 v5 bi-pro 2.2Ghz) | 304 GB | cc3.19xlarge.4 | OBS > CentOS 7.7 > o /home/local/ffmpeg_build/bin/ffmpeg -i > /data/testjulien/iss_ep01telco_DT_video360_h265_7680x7680_10b_250Mbps_stereo_v001.mp4 > -maxrate 25M -bufsize

Re: [FFmpeg-user] 1080i AVC-I 100 frame rate conversion

Am Fr., 26. März 2021 um 15:32 Uhr schrieb Bruce Roberts : > I'm looking for advice on the best ways to convert 23.976fps > and 29.97fps AVC-I 100Mbps content to 25fps The single most important question is: What do you mean with "convert"? Usually, changing the speed of the video is completely u

Re: [FFmpeg-user] Removing black beams

Am Fr., 26. März 2021 um 10:05 Uhr schrieb Cecil Westerhof via ffmpeg-user : > > Because people have different resolutions there are sometimes black > beams to the side of a video. What is the best way to remove them? Did you test the cropdetect filter? https://ffmpeg.org/ffmpeg-filters.html#cropd

Re: [FFmpeg-user] Cutting out part of a video does not work

Am Fr., 26. März 2021 um 17:28 Uhr schrieb Cecil Westerhof via ffmpeg-user : > ffmpeg -y -ss 1189 -i 2021-03-25ToastmastersClubAvond.mp4 > -to 442 -acodec copy -vcodec libx264 -crf 8 -async 1 speech.mp4 The x264 documentation states that there is no good reason to use "crf 8" and please don't use

Re: [FFmpeg-user] How to use the diff of palettegen with screen capturen

Am Mo., 29. März 2021 um 12:22 Uhr schrieb jun li : > > ffmpeg -f gdigrab -framerate 5 -i desktop output.gif This command line cannot produce a nice-looking gif, paletteuse is needed for good pal8 output. Either record first (not using gif) and convert to gif later or use a palette of your choice

Re: [FFmpeg-user] 1080i AVC-I 100 frame rate conversion

Am Mo., 29. März 2021 um 10:44 Uhr schrieb Bruce Roberts : > The background to this is that I have to transcode 23.976fps and 29.97fps > content for a VOD platform that will only accept 25fps. Their > documentation says that *prefer *speed change when going from 23.976fps > or 24fps to 25fps but t

Re: [FFmpeg-user] 1080i AVC-I 100 frame rate conversion

Am Mo., 29. März 2021 um 18:48 Uhr schrieb Nicolas George : > > Carl Eugen Hoyos (12021-03-29): > > Either you are showing content where the speed (and duration) can be > > changed but this does not matter - such content is rare but likely > > exists > > You mean

Re: [FFmpeg-user] Error Message: sps_id 1 out of range

> Am 02.04.2021 um 23:54 schrieb Simone Croci : > > I am decoding an MVC H.264 video and I get a lot of error messages "sps_id > 1 out of range". What is the problem? > is it caused by the fact that ffmpeg > does not support MVC H.264? Yes. As Carl wrote: When asking questions on this mailin

Re: [FFmpeg-user] Extraction of H.264 MVC bitstream from Matroska

> Am 03.04.2021 um 20:20 schrieb Simone Croci : > > Does ffmepg support the extraction of H.264 MVC bitstreams from Matroska? Please test and report back. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listi

Re: [FFmpeg-user] Using Homebrew to install FFmpeg, But having wired problems.

> Am 05.04.2021 um 04:39 schrieb Kosei Seki <1446513973wh...@gmail.com>: > > (base) XXX-MacBook-Air ~ % brew install ffmpeg --HEAD You will have to ask elsewhere (we are not brew) if you don’t like the links on our download page: http://ffmpeg.org/download.html Carl Eugen ___

Re: [FFmpeg-user] Cut part of a video, crop it and blackout parts of it

> Am 05.04.2021 um 01:48 schrieb Cecil Westerhof via ffmpeg-user > : > > I have to cut out a part of a video, crop it and blackout two parts. > I do this with: >ffmpeg -y \ > -ss 00:19:49\ > -i 2021-03-25

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

Am Mi., 7. Apr. 2021 um 10:46 Uhr schrieb Dylan Fernando : > Include the log file "ffbuild/config.log" produced by configure as this > will help solve the problem. Did you see this? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https:/

Re: [FFmpeg-user] How to dynamically drop frames as required to keep transcoding real time?

Am Di., 6. Apr. 2021 um 03:02 Uhr schrieb Adrian Cable : > > The problem/question is: how do I get ffmpeg to drop frames as required to > keep the pipeline running real time? This is not possible with ffmpeg, the application. Did you look at the x264 presets? Carl Eugen __

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

> Am 08.04.2021 um 12:45 schrieb Mar Andrés López : > > Is posible to specify bitrate option -b:v as the bitrate from the input? > instead of doing -b:v 300k is posible for example -b:v source, which would > output the bitrate from original video? No, technically this would make very little

Re: [FFmpeg-user] Trying to extract video stream but output only has 30 frames

Am Sa., 10. Apr. 2021 um 16:20 Uhr schrieb William Breathitt Gray : > > I can play the video file correctly on my phone and > desktop (albeit with some minor corrupted video frames and perhaps an > audio skip here or there), but when I try to convert the video file > using ffmpeg, I am unable to ge

Re: [FFmpeg-user] Trying to extract video stream but output only has 30 frames

Am Sa., 10. Apr. 2021 um 14:43 Uhr schrieb William Breathitt Gray : > $ ffmpeg -hide_banner -i VID_20210401_150222.mp4 -c:v copy -an onlyvideo.mp4 Work-around is to use -ignore_editlist 1 For future questions: Please remember not to sue -hide_banner and do not cut the console output. Carl Eugen

Re: [FFmpeg-user] Issue affecting ffmpeg and youtube-dl

Am Mo., 12. Apr. 2021 um 19:42 Uhr schrieb JD : > ffmpeg version 4.2.4-1ubuntu0.1 Copyright I don't see any indication for an issue that can be fixed in FFmpeg, if you disagree please test current FFmpeg git head and provide the failing ffmpeg (!) command line together with the complete, uncut co

Re: [FFmpeg-user] Preserving PAL 720x576 resolution

Am Mo., 12. Apr. 2021 um 12:46 Uhr schrieb Matthew Yang : > ffmpeg -ss 00:00:00 -i "input.mxf" -c copy -t 00:05:00 output.mxf Complete, uncut console output missing. Is your input really 720x576 or is it maybe interlaced content encoded as two separate frames with height 288? This is not yet sup

Re: [FFmpeg-user] Advice on getting help from ffmpeg-user list

Am Mo., 12. Apr. 2021 um 10:42 Uhr schrieb Jim DeLaHunt : > 3. Use the current version of ffmpeg to reproduce your problem. Your > output says, "ffmpeg version n3.0.1", but the current numbered version > is 4.4. To make this as clear as possible: The only version supported on this mailing list is

Re: [FFmpeg-user] Preserving PAL 720x576 resolution

Am Mo., 12. Apr. 2021 um 23:38 Uhr schrieb Mark Filipak (ffmpeg) : > > On 2021-04-12 06:40, Matthew Yang wrote: > > Hello all > > > > I was trying to extract a 5-minute segment of a video, keeping the same > > settings using the following command > > > > ffmpeg -ss 00:00:00 -i "input.mxf" -c copy -

Re: [FFmpeg-user] Issue affecting ffmpeg and youtube-dl

Am Mo., 12. Apr. 2021 um 23:42 Uhr schrieb JD : > > I will request the specific ffmpeg command that youtube-dl is using that > appears to fail. While there, please find out what top-posting means and avoid it here. Thank you ___ ffmpeg-user mailing list

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

Am Mo., 12. Apr. 2021 um 00:54 Uhr schrieb Dylan Fernando : > Thanks, Now I am getting: > > /usr/bin/ld: cannot find -lMachineIndependent > /usr/bin/ld: cannot find -lGenericCodeGen It doesn't work here either, maybe you need a particular version of glslang. Hopefully somebody who knows what it

Re: [FFmpeg-user] Preserving PAL 720x576 resolution

Am Mo., 12. Apr. 2021 um 23:52 Uhr schrieb Carl Zwanzig : > > On 4/12/2021 2:42 PM, Carl Eugen Hoyos wrote: > > and since Matthew didn't mention "interlaced" > > Video (ORIGINAL) > Scan type: Interlaced > Scan order

Re: [FFmpeg-user] Issue affecting ffmpeg and youtube-dl

Am Mo., 12. Apr. 2021 um 23:46 Uhr schrieb JD : > > Noted. > > >While there, please find out what top-posting means and avoid it here. > > Here is the output: > > Y:\youtube-dl>ffmpeg -y -loglevel "repeat+info" -i "file:deltron - > Videos\LIGHTSKINJOHN - only - MakTbhIZ5zo.f302.webm" -i "file:deltr

Re: [FFmpeg-user] Change in video length and loss of audio sync

Am Di., 13. Apr. 2021 um 22:18 Uhr schrieb Michael Koch : > > Am 13.04.2021 um 21:53 schrieb John Harlow via ffmpeg-user: > > RES1=`nice -20 cpulimit -l 400 /usr/bin/ffmpeg -y -hide_banner -loglevel > > verbose -r 29.97 -i "$TMP" \ > > I'm not sure, but doesn't the -r option before the input overw

Re: [FFmpeg-user] Preserving PAL 720x576 resolution

Am Di., 13. Apr. 2021 um 17:25 Uhr schrieb Carl Zwanzig : > > On 4/13/2021 12:48 AM, Kieran O Leary wrote: > > The developer of mediainfo, as mediainfo output was included. > > Cool, so completely irrelevant* to the question; that or we start > "blaming" every developer for their program's output.

Re: [FFmpeg-user] Preserving PAL 720x576 resolution

Am Di., 13. Apr. 2021 um 12:48 Uhr schrieb Erik Dobberkau : > > > Is your input really 720x576 or is it maybe interlaced content > > encoded as two separate frames with height 288? This is not > > yet supported by FFmpeg at all without filter insertion, it is > > possible that we will never write s

Re: [FFmpeg-user] repair missing audio header

Am So., 18. Apr. 2021 um 17:54 Uhr schrieb Alexander Machev : > > ffmpeg is reporting audio errors in some of my tv recordings. > > [mp2 @ 03956040] [error] Header missing > [error] Error while decoding stream #0:1: Invalid data found when > processing input Command line and complete, uncu

Re: [FFmpeg-user] Errors in swscaler or broken video

Am Sa., 8. Mai 2021 um 10:58 Uhr schrieb WR : > since some days I experience errormessages in ffplay: Is the issue also reproducible with ffmpeg? If the issue is reproducible with current FFmpeg git head, please provide the command line you tested together with the complete, uncut console output

Re: [FFmpeg-user] Syncronizing live sources across multiple / separate FFmpeg commands

Am Sa., 8. Mai 2021 um 07:28 Uhr schrieb Gabriel Balaich : > > Hey there, I'm wondering if anybody would have any ideas in regards to > synchronizing live sources across multiple / separate FFmpeg commands. It might be possible, please provide one of the command lines that are fast enough for reco

Re: [FFmpeg-user] Video Freezing Sometimes, and not other times.

> Am 12.05.2021 um 02:05 schrieb Craig L. : > > ffmpeg version 4.3.1-static Is the issue you see reproducible with current FFmpeg git head? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-use

Re: [FFmpeg-user] Errors in swscaler or broken video

Am Mi., 12. Mai 2021 um 08:39 Uhr schrieb WR : > Maybe, there is a way, to scale the subtitles in that way, that they > would fit the videos size. Yes, this is supposed to work fine. Please provide the command line you tested together with the complete, uncut console output to allow us to better

Re: [FFmpeg-user] h265 file from IP camera - audio stream

> Am 15.05.2021 um 14:29 schrieb Martin Woolley : > > I'm happy to share a sample file if it > would help. Please provide both a H264 and a H265 file with audio from the camera. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https:/

Re: [FFmpeg-user] h265 file from IP camera - audio stream

Am Sa., 15. Mai 2021 um 14:29 Uhr schrieb Martin Woolley : > > Unfortunately neither VLC or my media server/TV are able to > play the H265 files from the IP camera Am I the only one who interpreted this as "H264 files work fine"? I opened ticket #9245, thank you for the sample files! Carl Eugen

Re: [FFmpeg-user] h265 file from IP camera - audio stream

Am Sa., 15. Mai 2021 um 19:33 Uhr schrieb Martin Woolley : > > Sorry, no... reading my own words again, I too read it that way :-) Thank you! > But as you have no doubt discovered, neither format plays in > VLC. Apologies for my lack of rigour. Don't worry! > You're welcome. Looking forward to

Re: [FFmpeg-user] How to repair iPhone photos

Am Sa., 15. Mai 2021 um 18:28 Uhr schrieb Ulf Zibis : > I have some photos from a iPhone in HEIC format. Is there a > chance, to convert them to a "normal" format? You're welcome to test this repository with your samples: https://github.com/Swaraj1998/FFmpeg Thank you, Carl Eugen ___

Re: [FFmpeg-user] h265 file from IP camera - audio stream

Am So., 16. Mai 2021 um 08:11 Uhr schrieb Martin Woolley : > Would you mind educating me (or helping me educate myself)? > What is HXVF / HXVS / HXVT I chose this name for the file type because these strings / tags happen to appear in your files. > and is there a specification I can read coveri

Re: [FFmpeg-user] triming an audio wavfile

Am Mo., 24. Mai 2021 um 22:23 Uhr schrieb pink panther : > > I have a 325kb audio wave file recorded in g729. If the file does not work at all, we would love to test a sample Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.

Re: [FFmpeg-user] triming an audio wavfile

Am Mo., 24. Mai 2021 um 23:21 Uhr schrieb pink panther : > > I have tried all of the below. I just want to cut the audio(music on hold) > to 1 minute because it's too long Complete, uncut console output missing. Can the input file be decoded? If not, please provide a sample. Please find out what

Re: [FFmpeg-user] triming an audio wavfile

> Am 25.05.2021 um 03:39 schrieb pink panther : > > Input #0, wav, from 'Mohg729.wav': > Duration: 00:05:32.55, bitrate: 8 kb/s > Stream #0:0: Audio: none (3[1][0][0] / 0x0133), 8000 Hz, mono, 8 kb/s Please provide the file Mohg729.wav to allow us to fix the issue you see. Thank you, Carl E

Re: [FFmpeg-user] Convert flv to mp4. Bad video quality

> Am 28.05.2021 um 11:44 schrieb Michael Koch : > > Am 28.05.2021 um 11:25 schrieb Flavio Sartoretto: >> I use ffmpeg in order to convert fname.flv video to mp4: >> ffmpeg -i fname.flv -c:v mpeg4 -copyts -loglevel verbose fname.mp4 >> >> The video quality of my output is bad. How can I impro

Re: [FFmpeg-user] Recovery of broken Dohiker 'trailcam' videos

> Am 06.06.2021 um 14:44 schrieb Rob Hallam : > > However, while some of the videos play both video and audio, others have no > video Feel free to provide sample file(s) after confirming that the issue is reproducible with current FFmpeg git head, the only version supported on this mailing

Re: [FFmpeg-user] Recovery of broken Dohiker 'trailcam' videos

Am Di., 8. Juni 2021 um 14:52 Uhr schrieb Rob Hallam : > > On Tue, 8 Jun 2021 at 00:57, Carl Eugen Hoyos wrote: > > > > Feel free to provide sample file(s) after confirming that the > > issue is reproducible with current FFmpeg git head, the > > only version

Re: [FFmpeg-user] Issue in converting a dss audio file to wav

Am Mi., 9. Juni 2021 um 18:00 Uhr schrieb Aman Bisht : > ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers Is the issue you see reproducible with current FFmpeg git head? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org htt

Re: [FFmpeg-user] triming an audio wavfile

Am So., 13. Juni 2021 um 08:47 Uhr schrieb Robert Jeffares : > ffmpeg -hide_banner -loglevel error -i $SOURCE -ss $HEADNUM > -to $TAILNUM somedesiredoutput.wav This cannot work as the file does not get recognized currently. The usual way of dealing with such a case is to upload a sample. Carl

Re: [FFmpeg-user] Streaming video over UDP, connecting at any time

Am Di., 15. Juni 2021 um 15:17 Uhr schrieb Ad Go : > I'm trying to receive a video from a tcp stream and to re-stream > it over udp on localhost. This is what I have now: I don't use many tools except FFmpeg but I believe this should be done with tcpdump. Carl Eugen _

Re: [FFmpeg-user] FFmpeg and libx264 presets and Constant Rate Factor (CRF)

Am Sa., 7. Aug. 2021 um 11:12 Uhr schrieb Bill Crockett : > If I choose a CRF of 20, and I use the "veryslow" preset, the quality will > still be the same if I choose a CRF of 20 and use the "superfast" preset? > > The same with this. If I choose a CRF of 10, and I use the "veryslow" > preset, th

Re: [FFmpeg-user] Copied Video and Audio Way Out of Sync

Am So., 8. Aug. 2021 um 22:13 Uhr schrieb Wayne : > > Here's the simple command line I'm using to copy part of an mp4 file to > a new file. > > ffmpeg -ss 6.6401 -i inFile.mp4 -to 17.6679 -c copy outFile.mp4 Complete, uncut console output missing. > Since the seek position does not fall on a keyf

Re: [FFmpeg-user] ITU-R BS.1770-1 (Netflix) audio measurement

> Am 10.08.2021 um 11:03 schrieb Bouke : > > I'm using the R128 functionality now, but Netflix wants sound to be Dolby > dialogue-gated measured. > Seems that the needed Dolby code is free now. Very generally, this was unlikely, after following the links you provided, it’s not correct. („fre

Re: [FFmpeg-user] 'incorrect' number of extracted frames in a non-VFR video

> Am 11.08.2021 um 03:35 schrieb Jon Beyer : > > I have a video that is supposedly not VFR (ffmpeg vfrdet command and output > pasted at the very bottom), but the number of extracted frames, or > frame count with ffprobe, doesn't match what would be expected based on > frame rate and duration b

Re: [FFmpeg-user] Can MJPEG be live streamed without transcoding?

Am Sa., 8. Jan. 2022 um 07:54 Uhr schrieb Adam Nielsen via ffmpeg-user : > [mpegts @ 0x6725d0] Stream 0, codec mjpeg, is muxed as a private data > stream and may not be recognized upon reading. You cannot mux random data into mpegts, this is not a limitation of FFmpeg. A small change to the

Re: [FFmpeg-user] Pixel format for sdl output device

Am Fr., 7. Jan. 2022 um 22:16 Uhr schrieb Michael Koch : > > At the end of the > filter chain I had to insert "format=bgra". It doesn't work if I use > rgb24 or bgrp or no format at all. > Why does the sdl output device need a > pixel format with alpha channel? You can use bgr0 which is a format

Re: [FFmpeg-user] ffmpeg 4.4.1 security issue

Am Do., 6. Jan. 2022 um 14:13 Uhr schrieb Dama, Nikhil via ffmpeg-user : > My security team denied the download of the package, and here is the > following explanation that they gave: > DOWNLOAD DENIED: Muliple known vulnerabilities like CVE-2021-38171 Because of the extreme reaction by your secu

Re: [FFmpeg-user] How to submit sample media

Am Do., 20. Jan. 2022 um 00:04 Uhr schrieb Whatsthis XTnetwork : > > In some recent ffmpeg logs I see messages like: > > [h264 @ 0x123456789abc] If you want to help, upload a sample of this file > to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing > list. (ffmpeg-de...@ffmpeg

Re: [FFmpeg-user] Feeding frames to ffmpeg directly

Am So., 16. Jan. 2022 um 22:24 Uhr schrieb Moritz Barsnick : > > Hi Violet, > > On Sun, Jan 16, 2022 at 15:14:47 -0600, Violet White wrote: > > Hi, I have a program that generates frames of animation and saves > > them to individual files on a disk, but what I would like to do is avoid > > writing

Re: [FFmpeg-user] issue with pcm_mulaw

Am So., 16. Jan. 2022 um 12:34 Uhr schrieb manu . : > I used to transcode my cams Stream RTSP in HLS with ffmpeg on my Raspberry > for years > to play it in all browsers without problem, since i have updated my Raspberry > with the > latest Raspbian Bullseye and ffmpeg, i have no more audio … an

Re: [FFmpeg-user] Error while hardcoding subtitles (Invalid object location)

Am Mo., 24. Jan. 2022 um 19:46 Uhr schrieb Sergey_S : > > C:\Users\shuts\Downloads\ffmpeg-2022-01-19-git-dd17c86aa1-essentials_build\bin>ffmpeg > -i C:\Users\shuts\Desktop\Ep1.ts -vcodec libx264 -s 720x576 -g 50 > -keyint_min 50 -sc_threshold 0 -vprofile main -level 4.1 -b:v 3000K > -maxrate 3000K

Re: [FFmpeg-user] How to submit sample media

Am Mi., 26. Jan. 2022 um 00:13 Uhr schrieb Whatsthis : > > The webpage stating the upload procedure > (https://ffmpeg.org/bugreports.html#SubmittingSampleMedia) also says: > > > Furthermore movie files uploaded to services like rapidshare or any other > > similar service will be ignored. We are not

Re: [FFmpeg-user] Guidance on debugging a potential memory leak

Am Do., 1. Sept. 2022 um 19:07 Uhr schrieb Jorge Villatoro via ffmpeg-user : > I've tried running valgrind on this process for a while but I'm not really > sure how to decipher the results other than that there doesn't appear to be > an obvious leak. If valgrind does not show a memory there is no

Re: [FFmpeg-user] Guidance on debugging a potential memory leak

Am Do., 1. Sept. 2022 um 21:16 Uhr schrieb Jorge Villatoro via ffmpeg-user : > > If you'd like to call it something else that's fine with me, but it's clear > that the memory usage of the process escalates over time Which is not unusual for applications writing multimedia files. massif (another m

Re: [FFmpeg-user] multiple srt outputs with tee

> Am 17.10.2022 um 22:52 schrieb i...@mbsoft.biz: > > I would use the tee filter to output 3 srt streams. > ffmpeg.exe -report -f gdigrab -framerate 25 -offset_x 1063 -offset_y 147 > -video_size 854x480 -draw_mouse 0 -show_region 0 -i desktop -filter:v > "scale=-2:720" -vcodec libx264 -x264-p

Re: [FFmpeg-user] 16:9 to 2.35:1 and true HD 7.1 to DTS

Am Do., 3. Nov. 2022 um 20:34 Uhr schrieb Robin van der Linden via ffmpeg-user : > About the audio, I'm pretty sure that TrueHD is a BlackBox to ffmpeg FFmpeg contains a TrueHD deccoder and encoder. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@f

Re: [FFmpeg-user] 16:9 to 2.35:1 and true HD 7.1 to DTS

Am Do., 3. Nov. 2022 um 20:18 Uhr schrieb Bartosz Trzebuchowski : > > Is is possible with ffmpeg to convert the sound to DTS 7.1? There is a DTS 5.1 encoder in FFmpeg but it is highly experimental and it is unlikely that it would really help you, use the ac3 encoder instead. Carl Eugen __

Re: [FFmpeg-user] 16:9 to 2.35:1 and true HD 7.1 to DTS

Am Do., 3. Nov. 2022 um 22:49 Uhr schrieb Robin van der Linden via ffmpeg-user : > > @Carl Eugen > I check on the web for that Why didn't you test yourself? Regarding your earlier comment about TrueHD being "a proprietary format": TrueHD is based on Meridian Possless Packing, a format specified a

Re: [FFmpeg-user] 16:9 to 2.35:1 and true HD 7.1 to DTS

Am Do., 3. Nov. 2022 um 20:18 Uhr schrieb Bartosz Trzebuchowski : > 1. How can I convert 16:9 movies to 2.35:1? My projector can’t > scale down and 16:9 movies run outside my 2.35:1 canvas at > the top and the bottom. I need to black out top and bottom so > only 2.35:1 is visible. Use the crop fi

Re: [FFmpeg-user] combining audio and video

Am So., 6. Nov. 2022 um 12:50 Uhr schrieb owen s : > > Is it possible to have two urls, one streaming audio and one for video; > using ffmpeg to combine these streams and just playing them as one without > saving a file? Note that synchronisation can be an issue. Carl Eugen __

Re: [FFmpeg-user] Change fps from 50 to 25

Am Sa., 12. Nov. 2022 um 13:57 Uhr schrieb Cecil Westerhof via ffmpeg-user : > > Michael Koch writes: > > > Am 12.11.2022 um 12:39 schrieb Cecil Westerhof via ffmpeg-user: > >> I have a few videos that have a 50 fps. But the computer I am playing > >> them on cannot handle that properly. Can I use

Re: [FFmpeg-user] How to reduce interlace artifacts while trancoding to mp4

Am Sa., 12. Nov. 2022 um 01:46 Uhr schrieb Ulf Zibis : > > I have transcoded a avi video to mp4 for compressing by factor 8. > Now I see interlace artifacts. https://ffmpeg.org/ffmpeg-filters.html offers a few options: kerndeint is old / outdated, should be fast yadif was for a long time the most

Re: [FFmpeg-user] Video Object Notation

Am Fr., 11. Nov. 2022 um 22:41 Uhr schrieb Mark Filipak : > Can this be corrected? First thing to be corrected is that your mail is missing the ffmpeg command line you tested (I believe there is very little ffprobe support here) together with the complete, uncut console output. Once this is avai

Re: [FFmpeg-user] How to reduce interlace artifacts while trancoding to mp4

Am Sa., 12. Nov. 2022 um 17:03 Uhr schrieb Ulf Zibis : > > > Am 12.11.22 um 14:41 schrieb Carl Eugen Hoyos: > > https://ffmpeg.org/ffmpeg-filters.html offers a few options: > > kerndeint is old / outdated, should be fast > > yadif was for a long time the most useful d

Re: [FFmpeg-user] ffmpeg finds errors in AC3 but VLC player plays it without problems

Am Fr., 2. Dez. 2022 um 13:08 Uhr schrieb Mahesh Velankar : > > (removed unwanted part from output) Never do that if you ask for support here. What is needed is the command line that allows to reproduce the issue together with its complete, uncut console output. ffprobe typically cannot be a comm

Re: [FFmpeg-user] AVCintra100 encoding with horizontal blocking artefacts

Am Fr., 9. Dez. 2022 um 13:54 Uhr schrieb Barnett, Phillip : > I'm trying to encode AVC100 in UK (25i) but getting odd blocking artefacts, > where > the screen is banded in about 10 horizontal rows with random levels of > brightness, > which change on a sub-second basis, darker or lighter. I'm u

Re: [FFmpeg-user] Trouble selecting a pixel format/colorspace while trying to encode a video using ffmpeg and HW accelerated vaapi or qsv interfaces

Am Do., 8. Dez. 2022 um 20:32 Uhr schrieb : > Stream #0:0: Video: hevc (Rext), gbrp Completely unrelated: Do all your video players play above file? > ffmpeg -init_hw_device qsv=hw -filter_hw_device hw -v verbose > -f x11grab -draw_mouse 0 -framerate 20 -probesize 42M > -video_size 1920x1200 -

Re: [FFmpeg-user] Getting Unknown encoder 'libopencore-amrwb'

Am Di., 13. Dez. 2022 um 08:57 Uhr schrieb Govind Rathi : > configuration: --enable-gpl --enable-version3 --enable-libmp3lame > --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 > --enable-nonfree --enable-libopencore-amrnb --enable-libopencore-amrwb > --enable-libvo_amrwbenc

Re: [FFmpeg-user] Getting Unknown encoder 'libopencore-amrwb'

Am Mi., 14. Dez. 2022 um 06:31 Uhr schrieb Govind Rathi : > Thank you very much for quick response. > But I am still facing the same issue after making the changes as you > suggested. Sorry for the wrong advice, please try: --enable-gpl --enable-version3 --enable-libmp3lame --enable-libtheora --e

Re: [FFmpeg-user] Getting Unknown encoder 'libopencore-amrwb'

Am Do., 15. Dez. 2022 um 06:54 Uhr schrieb Govind Rathi : > It worked now but still I am not able to get the proper audio > after the conversion. > I am attaching you the raw file and the command The file contains stereo sound which is currently not supported for raw amr input files. > as well a

Re: [FFmpeg-user] Could not find codec parameters for stream 1 (Audio: pcm_mulaw, 8000 Hz, mono, 64 kb/s): unspecified sample format

Am Do., 9. Apr. 2020 um 00:47 Uhr schrieb Ben Edwards : > $ ffmpeg -loglevel warning -i input.mp4 Please increase the loglevel and provide this command line together with the complete, uncut console output, not an excerpt, if you want help here. Consider providing a sample, Carl Eugen __

Re: [FFmpeg-user] telecine pattern 5555 - Judder-free, 60 FPS telecine (?)

Am Di., 31. März 2020 um 19:53 Uhr schrieb Mark Filipak : Mark: Since dbc5c0c1, you can use the following filter chain: fps=24000/1001,setparams=field_mode=prog,telecine=pattern=5,yadif=deint=interlaced For everybody else: All developers seem to agree that this will not help as expected, please u

Re: [FFmpeg-user] telecine pattern 5555 - Judder-free, 60 FPS telecine (?)

Am Sa., 11. Apr. 2020 um 15:05 Uhr schrieb Mark Filipak : > > On 04/11/2020 08:05 AM, Carl Eugen Hoyos wrote: > > > > Mark: > > Since dbc5c0c1, you can use the following filter chain: > > fps=24000/1001,setparams=field_mode=prog,telecine=pattern=5,yadif=deint=in

Re: [FFmpeg-user] Encoding Settings

Am Sa., 11. Apr. 2020 um 17:09 Uhr schrieb K J : > I have some movies and they are nice encodes so I had a look in MediaInfo > under encoding settings to see what settings was used as I want to do > some movies I have and use the exact same settings. > > Encoding settings: > > cabac=1 / ref=4 / de

Re: [FFmpeg-user] telecine pattern 5555 - Judder-free, 60 FPS telecine (?)

Am Sa., 11. Apr. 2020 um 20:37 Uhr schrieb Mark Filipak : > > On 04/11/2020 10:58 AM, Carl Eugen Hoyos wrote: > > Am Sa., 11. Apr. 2020 um 15:05 Uhr schrieb Mark Filipak > > : > >> > >> On 04/11/2020 08:05 AM, Carl Eugen Hoyos wrote: > >>> &

Re: [FFmpeg-user] Can Decklink and GPu acceleration be used at same time ??

Am So., 12. Apr. 2020 um 03:58 Uhr schrieb Matthew Reus : > > How can we take decklink input from QUAD 2 capture card and use the gpu > for transcoding at same time , could anyone provide the example or tutorial > steps for it , as i have compile ffmpeg with gpu and decklink , but i could > not us

Re: [FFmpeg-user] Can Decklink and GPu acceleration be used at same time ??

Am So., 12. Apr. 2020 um 11:54 Uhr schrieb Matthew Reus : > > here i have attach the 2 of the ffmpeg script > > 1. This code gave me error > * ffmpeg -f decklink -hwaccel_device 1 -hwaccel nvdec > -hwaccel_output_format cuda -format_code pal -i 'DeckLink Quad (4)' -r 25 > -vf "format=yuv420p|cuda,

Re: [FFmpeg-user] Encoding Settings

Am So., 12. Apr. 2020 um 15:19 Uhr schrieb K J : > I really appreciate your help :-) Then why can't you provide the missing information? Please find out what top-posting means and avoid it here. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmp

Re: [FFmpeg-user] Preparing to compile ffmpeg from git source -- stuck

Am Mo., 13. Apr. 2020 um 00:57 Uhr schrieb Mark Filipak : > Following instructions here: > https://github.com/rdp/ffmpeg-windows-build-helpers We do not support external scripts on this mailing list. If you want to compile for Windows, install wsl (wsl2 does not work here, wsl works fine). Then

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