Re: [FFmpeg-user] DV to bob deinterlaced HEVC

Am Fr., 13. Nov. 2020 um 10:44 Uhr schrieb Matti Haveri : > > On Thu, Nov 12, 2020 at 11:39 PM Carl Eugen Hoyos > wrote: > > > > I guess it is better to deinterlace first, then scale? > > > > This is correct. > > I tested to scale & crop first, and

Re: [FFmpeg-user] DV to bob deinterlaced HEVC

Am Do., 12. Nov. 2020 um 20:11 Uhr schrieb Matti Haveri : > I guess it is better to deinterlace first, then scale? This is correct. I am not aware of any advantage of square pixels atm, not scaling (if this is possible) should be preferable. Carl Eugen __

Re: [FFmpeg-user] Reduce ffmpeg response

Am So., 8. Nov. 2020 um 17:42 Uhr schrieb Jeff England : > > I've found a number of posts along the lines of ffmpeg -hide_banner > -loglevel panic. I'm having difficulty knowing exactly where to place > the ffmpeg -hide_banner -loglevel panic (or the like) command. Both options can be placed anyw

Re: [FFmpeg-user] Applying the LGPL to ffmpeg usage

Am Di., 3. Nov. 2020 um 19:02 Uhr schrieb Carl Zwanzig : > > (changed the subject line) > > On 11/1/2020 12:07 PM, Carl Eugen Hoyos wrote: > > > If the question is "am I allowed to distribute a binary based on (L)GPL > > software" then the answer does no

Re: [FFmpeg-user] Decrease CPU usage?

Am Mo., 2. Nov. 2020 um 01:34 Uhr schrieb Diego Patricio Durante : > > Hello community! I have RTSP streams from cameras, and I'm interested > to save it to a disk and share as MP4. The main problems are the trade > off between disk usage and CPU usage without converting the format nor > scaling th

Re: [FFmpeg-user] Building on windows

Am Mo., 2. Nov. 2020 um 00:43 Uhr schrieb Carl Zwanzig : > > On 11/1/2020 3:33 PM, Carl Eugen Hoyos wrote: > > If you cannot use prebuilt binaries but have to build Windows binaries > > yourself, wsl is the best option. > > Are there specific technical reasons for that?

Re: [FFmpeg-user] (no subject)

Am Mo., 2. Nov. 2020 um 00:09 Uhr schrieb juan carlos rebate : > The options that I indicate are listed in the configure file, No. > if it does not make sense for what is included ? Most of the options never make sense. > what would be the correct combination that includes free and non-free >

Re: [FFmpeg-user] (no subject)

Am So., 1. Nov. 2020 um 21:41 Uhr schrieb juan carlos rebate : > Actually my way of compiling is simpler but as it did not work in windows I > looked > in google for some way to do it and I came up with a tutorial, my way that I > have > been using since ffmpeg 2.4.4 is this; > ./configure --ena

Re: [FFmpeg-user] (no subject)

Am So., 1. Nov. 2020 um 21:14 Uhr schrieb Edward Park : > > ./configure > > --arch=x86_64 > > --target-os=mingw32 > > --cross-prefix=x86_64-w64-mingw32- > Does that automatically cross-compile with just make? > I thought you would need to add --enable-cross-compile. No, --cross-prefix is enough.

Re: [FFmpeg-user] (no subject)

Am So., 1. Nov. 2020 um 19:49 Uhr schrieb juan carlos rebate : > Good afternoon, sorry that it took so long to update this thread, well I am > still trying > to use uar ffmpeg in my own way, but it seems that everything is going > against me, > now the problem is that if I try to compile in wind

Re: [FFmpeg-user] (no subject)

Am Mo., 26. Okt. 2020 um 06:44 Uhr schrieb Carl Zwanzig : > > On 10/25/2020 10:14 PM, Juan carlos Rebate wrote: > > However if you compile two separate versions > > there would be no licensing issue if you share it, would it? > > If you "share" the build, then technically you're distributing it. Th

Re: [FFmpeg-user] DASH content FROM UDP (same bitrate in dash manifest for all adaptation sets)

Am Di., 27. Okt. 2020 um 15:04 Uhr schrieb Mar Andrés López : > ffmpeg –i udp://127.0.0.1:12007 –r 25 -c:v libx264 -c:a aac -b:a 128k -ac 1 > -ar 44100 –b:d 2M > -map v:0 -b:v:0 2M -map v:0 -b:v:1 145k -map v:0 -b:v:2 365k -map 0:a? -f > dash dash.mpd Complete, uncut console output missing. Wh

Re: [FFmpeg-user] dshow video source in FFplay

Am So., 1. Nov. 2020 um 11:03 Uhr schrieb Michael Koch : > I'm using a cheap HDMI to USB converter for video input. The converter > supports different sizes and framerates and two different video codecs. > This command line works as expected: > > ffplay -f dshow -video_size 1920x1080 -framerate 30

Re: [FFmpeg-user] ffplay with Havision Makito X video encoder, H.264 stream, and "intra refresh" option enabled

Am Do., 29. Okt. 2020 um 17:44 Uhr schrieb Kevin Hise : > > I've attached 2 sample files (google drive links) captured using netcat (or > 'nc' on my Slackware box)...one showing video without the "intra refresh" > option enabled, and the other with. > > > The commands I've used to record and play b

Re: [FFmpeg-user] Struggling to convert mp4 to HLS with Constant Bit Rate and Constant Frame Rate

Am Fr., 30. Okt. 2020 um 20:15 Uhr schrieb John Harlow via ffmpeg-user : > I am trying to re-encode a set of mp4 files (a mix of 1080p and 720p, all at > 30FPS) to HLS with constant bit and frame rates. Do you know what constant bit rate means? The reason I ask is that you do not explain what is

Re: [FFmpeg-user] 4.3.1 configure error

Am Fr., 30. Okt. 2020 um 18:10 Uhr schrieb MediaStream : > $ CFLAGS=-I/usr/local/include LDFLAGS="-L/usr/local/lib -L/usr/local/lib64" > PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/local/lib64/pkgconfig > LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib64 ./configure > --prefix=/usr/local -

Re: [FFmpeg-user] Converting mp3 with included cover art into mp4 with cover art as video fails

Am Mi., 21. Okt. 2020 um 12:52 Uhr schrieb Rimvydas : > Running "ffmpeg -i in.mp3 out.mp4" fails with: Please test current FFmpeg git head and provide the complete, uncut console output. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org ht

Re: [FFmpeg-user] ION MP4 causing issues

> Am 19.10.2020 um 08:58 schrieb Matthias Opitz : > > I am capturing mp4 files since several years with an ION SPEED PRO without > any issues. I did not use the camera a while. Today I realized that either > W10 (tested different laptops) and even Linux ins not able to play these > files any

Re: [FFmpeg-user] problem capture desktop

Am So., 18. Okt. 2020 um 19:58 Uhr schrieb Juan carlos Rebate : > They also don't sell ffmpeg and if you allow me to use it without > problems, I have checked the video track with ffprobe and I notice > something strange, is that correct? > Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (av

Re: [FFmpeg-user] ffmpeg doesn't see audio stream

Am Sa., 17. Okt. 2020 um 03:13 Uhr schrieb Ivan Gorin : > > Here is the link to a sample, it's the very beginning of the video, where I > think the problem is. VLC says there is an indexing problem but it plays > fine. > > https://drive.google.com/file/d/1hznkCKQWWbmxSSBQxwyKY-G3Kje_D9nh I know th

Re: [FFmpeg-user] ffmpeg doesn't see audio stream

Am Sa., 17. Okt. 2020 um 02:31 Uhr schrieb Ivan Gorin : > > Here is the full output of ffprobe which i built from github (I hope I did > it right). I don't know how to provide a sample input file since I can't > cut the video - it loses the audio stream. Use dd to cut the sample. Carl Eugen _

Re: [FFmpeg-user] ffmpeg doesn't see audio stream

Am Fr., 16. Okt. 2020 um 21:42 Uhr schrieb Ivan Gorin : > > I have several avi files I captured from miniDV cassettes, and now am > trying to compress using ffmpeg. running ffprobe on one of the files yields > this output: Please (test current FFmpeg git head and) provide a sample input file. Car

Re: [FFmpeg-user] DNG images

Am So., 11. Okt. 2020 um 20:57 Uhr schrieb Paul B Mahol : > > On Sun, Oct 11, 2020 at 07:37:25PM +0200, Michael Koch wrote: > > [tiff @ 019996d6fe40] If you want to help, upload a sample of this file > > to https://streams.videolan.org/upload/ and contact the ffmpeg-devel mailing > > list. (ff

Re: [FFmpeg-user] ffplay with Havision Makito X video encoder, H.264 stream, and "intra refresh" option enabled

> Am 10.10.2020 um 01:13 schrieb Kevin Hise : > > I'm looking for some ideas about decoding an H.264 video stream > encoded by a Haivision Makito-X encoder and using its "intra refresh" > option. > > When the option is enabled (e.g. turning intra refresh "on") the video > decode is delayed by s

Re: [FFmpeg-user] Unable to reencode corrupt video file

Am Mo., 5. Okt. 2020 um 18:13 Uhr schrieb Schampignon Cristobal via ffmpeg-user : > could I send it privately for example via wetransfer? You can send it any way you like, but we need to make samples public to improve chances for a fix (exceptions definitely exist). Carl Eugen __

Re: [FFmpeg-user] Is it possible to extract DVD angles from VOB files with ffmpeg?

Am Fr., 2. Okt. 2020 um 00:37 Uhr schrieb Adam Kessel : > > Is it possible to select/extract individual angles from a VOB file? This should work with mplayer -dumpstream, FFmpeg does not support reading (non-trivial) DVDs. Carl Eugen ___ ffmpeg-user mai

Re: [FFmpeg-user] Blender animation: , replaceing part of an animation with another one

Am Sa., 3. Okt. 2020 um 08:09 Uhr schrieb : > And finally replace the corresponding part of the complete animation > with the corrected part (both given by start and end frame). ffmpeg (the application) is not a non-linear video editor and cannot (easily) do what you want. The libraries can be us

Re: [FFmpeg-user] DE-REBERB

Am Sa., 3. Okt. 2020 um 16:12 Uhr schrieb Marco Mircoli : > > As plugin I mean LADSPA plugin FFmpeg allows using ladspa. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visi

Re: [FFmpeg-user] Unable to reencode corrupt video file

> Am 27.09.2020 um 19:44 schrieb Schampignon Cristobal via ffmpeg-user > : > > I have got a corrupt video file Please provide a sample file. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-u

Re: [FFmpeg-user] need help with making an "in sync" screen recording.

Am Fr., 25. Sept. 2020 um 02:06 Uhr schrieb Amon Gibson Albuquerque Nunes : > > i'm confused, why does it (the old documentation) say that -q 1 should not be > used? Because you should use -q 2 instead. > and what am i actually supposed to use instead of -bitrate? I don't know what you want to

Re: [FFmpeg-user] VP8 encoding performances

Am Fr., 25. Sept. 2020 um 17:08 Uhr schrieb Emmanuel Dreyfus : > I have rebuilt ffmpeg with ./configure --enable-libvpx --enable-libwebp > --enable-libvorbis --mandir=/usr/pkg/man --prefix=/usr/pkg --progs-suffix=4 > --datadir=/usr/pkg/share/ffmpeg4 --docdir=/usr/pkg/share/doc/ffmpeg4 > --incdi

Re: [FFmpeg-user] Howto specify needed options for ffmpeg

Am Do., 24. Sept. 2020 um 16:18 Uhr schrieb Thomas Seilund via ffmpeg-user : > > > On 9/23/20 10:42 PM, Carl Eugen Hoyos wrote: > > Am Mi., 23. Sept. 2020 um 17:24 Uhr schrieb Thomas Seilund via > > ffmpeg-user : > > > >> Now I write to udp and n

Re: [FFmpeg-user] av_interleaved_write_frame(): Invalid argument

Am Do., 24. Sept. 2020 um 11:42 Uhr schrieb Mar Andrés López : > I want to set the same timestamps in my video.mpg which has a video > stream and a klv data stream, when I perform this command: > > ffmpeg -vsync drop -i video.mpg -map 0 -codec copy -f mpegts output.mpg Complete, uncut console out

Re: [FFmpeg-user] VP8 encoding performances

Am Do., 24. Sept. 2020 um 17:13 Uhr schrieb Emmanuel Dreyfus : > > Hello > > I am looking for ways to improve VP8 encoding performance. I work with 5 > mn long, 5 MB large MPEG4 test video. Here is the codec information from > ffprobe > > Duration: 00:05:08.20, start: 0.00, bitrate: 150 kb/s

Re: [FFmpeg-user] Howto specify needed options for ffmpeg

Am Mi., 23. Sept. 2020 um 17:24 Uhr schrieb Thomas Seilund via ffmpeg-user : > Now I write to udp and not to a local file with this command: > > raspivid -t 0 -b 1000 -n -o udp://239.255.42.42:5004 > Connecting to 239.255.42.42:5004...connected, sending video... > > > On the same host I read f

Re: [FFmpeg-user] need help with making an "in sync" screen recording.

Am Mi., 23. Sept. 2020 um 13:59 Uhr schrieb Amon Gibson Albuquerque Nunes : > > OK. so first of all i wanted to record some footage of a game i've bought > from a digital storefront. as i experimented on which parameters and > arguments i would use to record said footage i came up with this. > >

Re: [FFmpeg-user] bwdif filter question

Am Di., 22. Sept. 2020 um 00:47 Uhr schrieb Mark Filipak (ffmpeg) : > > On 09/21/2020 06:07 PM, Carl Eugen Hoyos wrote: > > Am Mo., 21. Sept. 2020 um 14:16 Uhr schrieb Mark Filipak (ffmpeg) > > : > >> Here is what you wrote: > >> "The following makes lit

Re: [FFmpeg-user] bwdif filter question

Am Mo., 21. Sept. 2020 um 14:16 Uhr schrieb Mark Filipak (ffmpeg) : > > On 09/21/2020 03:33 AM, Carl Eugen Hoyos wrote: > > > >> Am 21.09.2020 um 01:56 schrieb Mark Filipak (ffmpeg) : > >> > >> How can it 'deinterlace' a single field? > > >

Re: [FFmpeg-user] bwdif filter question

> Am 21.09.2020 um 01:56 schrieb Mark Filipak (ffmpeg) : > > How can it 'deinterlace' a single field? It can’t and that is what I explained several times in my last two mails. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffm

Re: [FFmpeg-user] ffprobe timeout is not working

Am Sa., 19. Sept. 2020 um 19:14 Uhr schrieb gilmotta : > > Hello Everybody, > > I'm afraid this is a recurring subject but -timeout and -stimeout is not > working for me. I look at older posts but no luck. > > I tried seconds, milliseconds and micro seconds but no matter what I do > ffprobe returns

Re: [FFmpeg-user] bwdif filter question

Am So., 20. Sept. 2020 um 06:59 Uhr schrieb Mark Filipak (ffmpeg) : > > On 09/18/2020 03:01 PM, Carl Eugen Hoyos wrote: > >> Am 16.09.2020 um 15:58 schrieb Mark Himsley : > >>> On Mon, 14 Sep 2020 at 15:42, Mark Filipak (ffmpeg) > >>> wrote: > >

Re: [FFmpeg-user] Transcoding mpeg2video in mpegts to h264 in mpegts has fast playback

Am So., 20. Sept. 2020 um 03:13 Uhr schrieb Patrick Double : > > > On Sep 18, 2020, at 1:37 PM, Carl Eugen Hoyos wrote: > > > >> Am 18.09.2020 um 18:51 schrieb Pat Double : > >> > >> Here is my sample: > >> > >> https://www.dropbox.com/

Re: [FFmpeg-user] how to convert *.cin into *.avi?

> Am 20.09.2020 um 08:10 schrieb Reto Kromer : > > Paul B Mahol wrote: > >> FFmpeg currently does not have any support for Cineon (.cin >> file extension with magic bytes 0x802a5fd7 at start) at all. > > If you force their lecture as DPX, then in my experience you can > use them in FFmpeg.

Re: [FFmpeg-user] Transcoding mpeg2video in mpegts to h264 in mpegts has fast playback

> Am 18.09.2020 um 18:51 schrieb Pat Double : > > Here is my sample: > > https://www.dropbox.com/s/7s7itvj1uy2nov7/RobotMaker-short.ts Please provide an input sample, never provide output files unless specifically requested. And please remove -hide_banner from your command line when asking q

Re: [FFmpeg-user] bwdif filter question

> Am 16.09.2020 um 15:58 schrieb Mark Himsley : > >> On Mon, 14 Sep 2020 at 15:42, Mark Filipak (ffmpeg) >> wrote: >> >> Is the input to the bwdif filter fields or frames? > > The input to every filter in a filter chain is a raster of pixels. > That raster may contain one frame or two fields

Re: [FFmpeg-user] USB Camera ffplay real-time and save to file

Am Sa., 12. Sept. 2020 um 02:25 Uhr schrieb Hans Carlson : > [mjpeg @ 0x2b2e580] unable to decode APP fields: Invalid data found when > processing input The tag looks like this: ff e1 00 04 00 00 We (FFmpeg) believe that this is too short for a valid APPx tag. Carl Eugen ___

Re: [FFmpeg-user] Create lossless PNG compressed avi video - not MPNG - for ImageJ

Am Di., 15. Sept. 2020 um 12:32 Uhr schrieb Edward Park : > > Hi, > > >> ... error in ImageJ: "Unsupported compression: 474e504d 'MPNG' in line 16” > > > > ffmpeg -i input -vcodec png -vtag "PNG " out.avi > > I'm just curious, do you know if MPNG a thing Definitely but I likely don't understand yo

Re: [FFmpeg-user] Create lossless PNG compressed avi video - not MPNG - for ImageJ

Am Di., 15. Sept. 2020 um 11:47 Uhr schrieb Rainer M Krug : > > Hi > > I want to compress avi videos which will be read into ImageJ, which supports > the following formats: > > https://imagej.nih.gov/ij/plugins/avi-reader.html > > ``` > • Only a few formats are supported: >

Re: [FFmpeg-user] WAV samplerate conversion with CODEC ID 1 ???

Am Di., 15. Sept. 2020 um 11:59 Uhr schrieb Tobias Rapp : > > On 15.09.2020 11:44, christian.w...@4-real.com wrote: > > Is it somehow possible to convert wav audio takes with a CODEC ID of 1? > > Because ffmpeg and sox are creating very long and "unusal" codec ids like: > > 0001--0010-8000-

Re: [FFmpeg-user] bwdif filter question

> Am 14.09.2020 um 16:39 schrieb Mark Filipak (ffmpeg) : > > Is the input to the bwdif filter fields or frames? In general, FFmpeg’s filter system doesn’t know about fields, only frames that may contain progressive content or interlaced content that you may want to de-interlace. Carl Eugen _

Re: [FFmpeg-user] Need Help

Am Di., 25. Aug. 2020 um 10:38 Uhr schrieb Rihab Sahbani : > I have a problem > I want to detect the glitch and the erroneous macroblocks > in video but i didn't find any filter to detect them . You cannot detect such errors in a filter. > is there any solution. You could write a stream analyze

Re: [FFmpeg-user] rav1e encoding only using one core

Am Fr., 11. Sept. 2020 um 15:48 Uhr schrieb Robert Krüger : > I'm playing around with rav1e and noticed in my first test that only one > core is used of the 8 (16 virtual) I have. I tried with and without > -threads setting. Since most other codecs behave this way I was expecting > it to use as ma

Re: [FFmpeg-user] 5% of audio samples missing when capturing audio on a mac

Am Sa., 12. Sept. 2020 um 10:48 Uhr schrieb Norbert Pozar : > I am attempting to capture a webcam with audio on a MacBook pro (Catalina > 10.15.6), but I am having trouble with the audio stream. The video part is > fine, but audio seems to be missing about 5% of the expected samples. This > simple

Re: [FFmpeg-user] Errors and artefacts when decoding a .h264 file from security camera

Am Mi., 9. Sept. 2020 um 17:18 Uhr schrieb Robert Krüger : > > Hi, > > I have a security camera file that gives me decoding errors which are very > likely the reason for several macroblocks being broken in the resulting > video (by far not all, you can still recognize the motive). You forgot to me

Re: [FFmpeg-user] USB Camera ffplay real-time and save to file

> Am 12.09.2020 um 02:25 schrieb Hans Carlson : > > but there's a couple warning messages and I'm curious if there's any way to > avoid them: > > [swscaler @ 0x2b5bb00] deprecated pixel format used, make sure you did set > range correctly > > I'm assuming this is referring to the input pixe

Re: [FFmpeg-user] USB Camera ffplay real-time and save to file

> Am 11.09.2020 um 21:30 schrieb Hans Carlson : > > $ ffmpeg -f v4l2 -input_format mjpeg -framerate 30 -video_size 1280x720 -i > /dev/video2 -map 0:0 -c:v rawvideo -pixel_format yuv422p -f sdl :0 The output option is called -pix_fmt Carl Eugen ___

Re: [FFmpeg-user] Errors and artefacts when decoding a .h264 file from security camera

> Am 09.09.2020 um 17:18 schrieb Robert Krüger : > > I have a security camera file that gives me decoding errors which are very > likely the reason for several macroblocks being broken in the resulting > video (by far not all, you can still recognize the motive). > > Are there any command line

Re: [FFmpeg-user] USB Camera ffplay real-time and save to file

> Am 09.09.2020 um 23:07 schrieb Hans Carlson : > > I have a cheap USB pipe inspection camera and I want to see the output (via > ffplay) real-time, but also record (via ffmpeg) Use ffmpeg instead of ffplay to show the stream, this should avoid the lagging you saw. Carl Eugen __

Re: [FFmpeg-user] "interlace"

Am So., 6. Sept. 2020 um 21:27 Uhr schrieb Mark Filipak : > All of the ffmpeg documentation that uses the word "interlaced" > should be checked for accuracy. Since real-world users are using this documentation it should only be carefully changed. Or in other words: We will certainly not change o

Re: [FFmpeg-user] Question about macroblocks in soft telecined video

Am So., 6. Sept. 2020 um 19:07 Uhr schrieb Mark Filipak : > > (Apart from the fact that telecined content does not necessarily Sorry for the typo here, this should have said "soft telecined". > > have a framerate of 24000/1001, ... > > That's an ad homonym attack. lol > I didn't say "telecined

Re: [FFmpeg-user] Question about macroblocks in soft telecined video

Am So., 6. Sept. 2020 um 09:28 Uhr schrieb Mark Filipak : [...] > Soft telecined video is actually 23/1.001 frames per second of video > even though the metadata tells the decoder to produce 30/1.001 FPS. On the FFmpeg user mailing list, "decoder" and "metadata" have relatively strict meanings.

Re: [FFmpeg-user] Question about macroblocks in soft telecined video

Am So., 6. Sept. 2020 um 06:20 Uhr schrieb Mark Filipak : > I would guess that, for an undecoded video that's soft telecined (i.e. > @24/1.001 FPS), > the interlace in the macroblocks is field-based (i.e. the same as if > @30/1.001 FPS), > not frame-based (i.e. the same as if @24 FPS). This doe

Re: [FFmpeg-user] builds for Windows

Am Mi., 2. Sept. 2020 um 20:29 Uhr schrieb Michael Koch : > > "ffmpeg.zeranoe.com will close on Sep 18, 2020, and all builds will be > removed." > > Any idea where we can get builds for Windows after this date? The FFmpeg project only provides source code, no builds. Carl Eugen __

Re: [FFmpeg-user] Problem about duration value of converted mp3 file

Am Di., 1. Sept. 2020 um 10:22 Uhr schrieb myounggun jang : > ffmpeg.exe -i 1.wav 1.mp3 Complete, uncut console output missing. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscri

Re: [FFmpeg-user] build error at libavformat/udp.o

Am Di., 1. Sept. 2020 um 01:45 Uhr schrieb Hyoung Kim via ffmpeg-user : > d. Android NDK version : r16 The issue is (for example) not reproducible with r19b here. If you need more support, don't forget to show us the configure line you tested! Carl Eugen ___

Re: [FFmpeg-user] build error at libavformat/udp.o

Am Fr., 28. Aug. 2020 um 18:38 Uhr schrieb Hyoung Kim via ffmpeg-user : >I am a newbie about FFmpeg. >I just need it for using Alexa AVS 1.18.0. > > While I try to build the FFmpeg for Android, I got a build error like > > src/libavformat/udp.c:290:28: error: member reference b

Re: [FFmpeg-user] seeking not working as expected

Am So., 30. Aug. 2020 um 21:32 Uhr schrieb Mike Brown : > > I'm using a Zeranoe 64-bit Windows build, ffmpeg version > git-2020-06-28-4cfcfb3 on Win7. > > I am trying to split DV-AVI files, using https://trac.ffmpeg.org/wiki/Seeking > as my guide. > For example, I want to extract a segment from 4

Re: [FFmpeg-user] ? About ffmpeg's prores implemention

Am Fr., 28. Aug. 2020 um 02:01 Uhr schrieb Gary Yost : > > ’ve got a question about the Prores implementation in ffmpeg because I’ve seen > some odd behavior here with FCPX (running on a very beefy 16-core Mac Pro > with 192Gram and an Afterburner card). > > When I output files from ffmpeg in Prore

Re: [FFmpeg-user] Hoping to make multiple input seeking outputs based on a text file (inspired by concat)

Am Do., 27. Aug. 2020 um 18:35 Uhr schrieb James Sundquist : > > Inspired by concat command for combining a series of clips from a text file. Did you read the documentation of the concat demuxer? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpe

Re: [FFmpeg-user] Yadif_cuda and Pix_fmt

Am Di., 25. Aug. 2020 um 06:38 Uhr schrieb Andy Sheimo : > > I'm trying to use yadif_cuda during a transcode along with converting from > 8bit to 10bit. If I understand correctly, you want to first convert to 10 bit and then upload to cuda (and nvenc). The "pix_fmt" option will try to convert the

Re: [FFmpeg-user] Yadif_cuda and Pix_fmt

> Am 25.08.2020 um 06:38 schrieb Andy Sheimo : > > I'm trying to use yadif_cuda during a transcode along with converting from > 8bit to 10bit. Command line and complete, uncut console output missing. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-us

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

Am Fr., 21. Aug. 2020 um 18:34 Uhr schrieb Michael Koch : > > Am 21.08.2020 um 17:06 schrieb Gyan Doshi: > > What concerns do you have about using git? > > I don't understand how git works. Have tried it some time ago, > but didn't work, so I gave up. No good instructions available. It is not nec

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

Am Mi., 19. Aug. 2020 um 22:48 Uhr schrieb Nicolas George : > > Carl Eugen Hoyos (12020-08-19): > > (I'd like to add that the extremely important information about automatic > > scale filter insertion was originally shown with default verbosity, I always > > wanted

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

Am Mi., 19. Aug. 2020 um 19:59 Uhr schrieb Paul B Mahol : > > 1. Insert a showinfo filter after maskedmerge and check the pixel format. > > Just use -v debug, it will show whenever scale/format filter is auto inserted. Luckily, -v verbose is sufficient. (I'd like to add that the extremely import

Re: [FFmpeg-user] Compression is a lot smaller

Am Sa., 15. Aug. 2020 um 13:01 Uhr schrieb Cecil Westerhof : > > In the past the original file was between 4 to 13 times bigger as the > compressed file. As I tried to explain in the other thread: Even neglecting the fact that you seem to believe your camera does an uncompressed recording (it does

Re: [FFmpeg-user] Why is format=rgb24 required after maskedmerge?

Am Di., 18. Aug. 2020 um 14:44 Uhr schrieb Michael Koch : > c:\ffmpeg\ffmpeg -i red.mp4 -i yellow.mp4 -i mergemap.png -lavfi > "[0]format=rgb24,v360=input=fisheye:output=e:ih_fov=200:iv_fov=200[a];[1]format=rgb24,v360=input=fisheye:output=e:yaw=180:ih_fov=200:iv_fov=200[b];[a][b][2]maskedmerge,for

Re: [FFmpeg-user] libx265 a lot slower

> Am 16.08.2020 um 19:14 schrieb Carl Zwanzig : > > Reindl is known for acerbic and unhelpful answers There are several reasons why you should be extremely careful with such comments, please consider this a little warning. Carl Eugen ___ ffmpeg-user

Re: [FFmpeg-user] libx265 a lot slower

> Am 16.08.2020 um 19:02 schrieb Cecil Westerhof : > > By the way: when searching on the internet, I saw often said that 265 > would be half as big as 264, but I see 'only' a third less space > taken. Are the people saying 50% overly optimistic, or do I just have > 'strange' videos? You complet

Re: [FFmpeg-user] Loading shared libraries in macOS

> Am 12.08.2020 um 09:14 schrieb Aleksid : > > Why is ffmpeg looking for shared libraries in a folder where I compiled > FFmpeg sources on macOS Catalina? > > Source code of FFmpeg is located in /usr/local/Cellar/ffmpeg > > ./configure --enable-shared --extra-cflags="-fno-stack-check" --enabl

Re: [FFmpeg-user] FFmpeg distribution help

Am Mi., 5. Aug. 2020 um 22:26 Uhr schrieb Don Fotheringham : > We have developed software that requires the distribution of FFmpeg > (included in the download). Our intention is to sell the software. > Who do I contact to inquire further about how to proceed regarding > permission, royalties, fee

Re: [FFmpeg-user] Impossible to get the bit depth value of an audio-file with ffprobe

> Am 04.08.2020 um 16:56 schrieb scrutinizer : > > is it possible to retrieve the bit depth value of an audio-file Depends on the file. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To

Re: [FFmpeg-user] Impossible to get the bit depth value of an audio-file with ffprobe

> Am 04.08.2020 um 02:57 schrieb scrutinizer : > > This is, in effect, relates to the similar topic raised in January 2018 no > this forum (“Sample types 's32 (24 bit)' and 's16 (24 bit)' are confusing to > me”). There are „links“ nowadays, have you ever used them? > In it, the user was give

Re: [FFmpeg-user] Compilation of shared libraries for macOS

Am So., 2. Aug. 2020 um 19:40 Uhr schrieb Екатерина : > I have a problem with compilation of shared libraries on macOS Catalina to > include FFmpeg 4.3.1 dylibs for my app video for a simple video playback: > > ./configure --prefix=/usr/local/Cellar/ffmpeg/4.3.1 --enable-shared > --enable-pthreads

Re: [FFmpeg-user] timestamps

Am Do., 30. Juli 2020 um 10:12 Uhr schrieb Valentin Schweitzer : > > On 30/07/2020 08:37, 诸葛亮 wrote: > > I am a beginner. When I was reading your source code, > > I didn't quite understand the meaning of is_relative() and > > RELATIVE_TS_BASE. I would like to ask for your help. > > You very much m

Re: [FFmpeg-user] how to re-add original audio delay back into a 2-inputfile ffmpeg transcode

Am Do., 30. Juli 2020 um 06:53 Uhr schrieb : > I have a .mpg with interlaced mpeg2 and ac3 audio, which needs > converting to progressive .mp4 avc/aac. > > The interlaced video is a bit grainy etc so I hope to deinterlace and > clean it up using vapoursynth CUDA filters I am curious: What are the

Re: [FFmpeg-user] How to create good video from low quality jpeg

Am Di., 28. Juli 2020 um 02:26 Uhr schrieb Kawada Tsuyoshi : > this is not good. > https://mekou.com/ng.jpg Please test current FFmpeg git head before asking for support here. (The file is not low quality and your issue has nothing to do with "good video from low quality jpeg") Carl Eugen __

Re: [FFmpeg-user] ffmpeg extract hdmv pgs subtitle from mkv to srt or ssa

Am So., 19. Juli 2020 um 18:46 Uhr schrieb Ramon Brea : > Stream #0:4 -> #0:0 (hdmv_pgs_subtitle (pgssub) -> subrip (srt)) > Subtitle encoding currently only possible from text to text or bitmap to > bitmap What is unclear about this error message? pgssub are bitmap subtitles while srt is a t

Re: [FFmpeg-user] Ffmpeg issues multiple HTTP requests when starting a video from a URL

Am Fr., 17. Juli 2020 um 08:21 Uhr schrieb Vladimir Grishchenko : > > A bit more details. But still not enough. When asking for support here, please always provide the command line you tested together with the complete, uncut console output. Carl Eugen ___

Re: [FFmpeg-user] Documentation of chromanr filter

Am Sa., 11. Juli 2020 um 19:58 Uhr schrieb Carl Zwanzig : > > On 7/11/2020 1:39 AM, Paul B Mahol wrote: > > Can you elaborate what you tried and what failed? > > Why does it matter??? I believe you misunderstand that the only limiting factor of FFmpeg development is time, therefore reacting to

Re: [FFmpeg-user] Help in improving the documentation is always welcome? [was: write output of find_rect to a file?]

Am So., 12. Juli 2020 um 22:14 Uhr schrieb Jim DeLaHunt : > > On 2020-07-12 05:21, Moritz Barsnick wrote: > > > …(Help in improving the documentation is always welcome…. Useful help in improving the documentation is welcome. The size of such a change often gives a good indication of its usefulnes

Re: [FFmpeg-user] Compiling on an aarch64 machine

Am Mi., 8. Juli 2020 um 21:36 Uhr schrieb Verachten Bruno : > Could this behaviour be considered as a bug? If so, I can file it. What would you like to report where? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mail

Re: [FFmpeg-user] Compiling on an aarch64 machine

Am Mi., 8. Juli 2020 um 12:24 Uhr schrieb Verachten Bruno : > > On Tue, Jul 7, 2020 at 10:49 PM Carl Eugen Hoyos wrote: > > > Am Di., 7. Juli 2020 um 21:34 Uhr schrieb Verachten Bruno < > > gount...@gmail.com>: > > > > > CFLAGS='-mfpu=neon'

Re: [FFmpeg-user] Compiling on an aarch64 machine

Am Di., 7. Juli 2020 um 21:34 Uhr schrieb Verachten Bruno : > CFLAGS='-mfpu=neon' This is apparently not ignored (I thought it should be) and you are therefore responsible not to set these variables. Please find out what top-posting means and avoid it here. Carl Eugen __

Re: [FFmpeg-user] Compiling on an aarch64 machine

Am Di., 7. Juli 2020 um 16:07 Uhr schrieb Verachten Bruno : > Include the log file "ffbuild/config.log" produced by configure as this > will help solve the problem. What is unclear about this request? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-use

Re: [FFmpeg-user] Amiga IFF ILBM image format support

Am Mo., 6. Juli 2020 um 02:15 Uhr schrieb muadib3D : > Here is a 24bit ILBM file: > medieval-castle-3d-model-max-fbx-ma-mb-tga.iff > What does not work with this file using FFmpeg / command line and comple

Re: [FFmpeg-user] Amiga IFF ILBM image format support

Am Mo., 6. Juli 2020 um 00:25 Uhr schrieb muadib3D : > I was wondering if ffmpeg supports an option for Amiga IFF > ILBM 24 image loading/saving? Please provide a sample. > (Found some dated posts regarding this but ffmpeg does > not understand the extension of the format) FFmpeg does not belie

Re: [FFmpeg-user] 3D block_lr or frame-packing to side-by-side format

Am Mi., 1. Juli 2020 um 22:40 Uhr schrieb : > Does anyone know how to convert 3D files from Blu-ray discs MVC is not supported by FFmpeg. I wanted to write "Not with open-source software" but then I remembered that there used to be a patch (possibly not license-conforming) against FFmpeg that yo

Re: [FFmpeg-user] Low CPU HQ format for local streaming?

Am Di., 30. Juni 2020 um 18:22 Uhr schrieb Simon Roberts : > So, I think my question is "what encoding, and what file type" would suit > my needs for a very low CPU overhead, but not caring about bandwidth -vcodec mpeg1video -qscale 2 -mbd 2 (You will probably not be happy with the result, but fi

Re: [FFmpeg-user] Encoding Warnings

Am Mo., 29. Juni 2020 um 16:44 Uhr schrieb Jim : > >> The two lines that are concerning to me are: > >> > >> 'Guessed Channel Layout for Input Stream #1.0 : stereo' > >> > >> Of course it's stereo - I jump dumped it to a 2-channel wave in the step 2! > >> :) > >> I'm guessing that I can sa

Re: [FFmpeg-user] extract first 26 seconds not workings as expected

Am So., 28. Juni 2020 um 20:31 Uhr schrieb Leonardo via ffmpeg-user : > I have a video (main.mp4 - that has about 52 minutes) that I want to cut its > first 26 seconds. > > For this, I'm using command > > $ ffmpeg -i main.mp4 -ss 00:00:00.00 -t 00:00:26.00 -c copy part1.mp4 > ffmpeg version 4.2.3

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