Re: [FFmpeg-user] Trying to Reduce Sizes of Movies Ripped with MakeMKV

bably getting a newer version of FFmpeg, then you can work on configuring with hw acceleration support, or finding a static build that includes it. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpe

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

Hi, I have a feeling specifying the capture region as an input option instead of cropping with a filter will help. Also do you really need the scale? Scaling the encore in another step will probably be indistinguishable if you do. Regards, Ted Park

Re: [FFmpeg-user] OVERLAY_CUDA and PGS Subtitle burn

Hi, > i'm trying to use the OVERLAY_CUDA function to burn PGS titles over a video > Try ffmpeg -I input.mkv -filter_complex ‘[0:v][0:s]overlay_cuda’ (Not completely sure it works with overlay cuda but that’s how you would do it with overlay. Regards

Re: [FFmpeg-user] Correct conversion of yuvj420p?

Hi, >> So, is the file now "AV_PIX_FMT_YUVJ420P" or "AV_PIX_FMT_YUV420P + set >> color_range"? Obviously those names are not relevant until the file meets the av* tools, but they are the same formats. I think yuvj420p was meant to be a separate variant of yuv420p that was not broadcast safe, fr

Re: [FFmpeg-user] Correct conversion of yuvj420p?

Hi, > > Incompatible pixel format 'yuvj420p' for codec 'ffv1', auto-selecting > > format 'yuv420p' > > > [swscaler @ 0x71c9440] deprecated pixel format used, make sure you > > did set range correctly > > > > The comment in > > [libavutil/pixfmt.h](https://github.com/FFmpeg/FFmpeg/blob/

Re: [FFmpeg-user] Convert DNG

Hi, > Let's get back to the matter at hand- > > The results from searching around for "cinemadng ffmpeg" does suggest that > > cinemadng is not fully implemented in ffmpeg. Yes? No? What are the limits? I would imagine because the material is often raw sensor data, as in the OP’s case (film s

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

Hi, I will try to explain one step at a time. Can you explain one step at a time, as in explain the steps you took (one command line at a time)? Maybe it’s because I’ve never cross compiled ffmpeg but your mentioning cmake makes me think you are messing up the build system. Like there’s no info

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

Hi, How do you use a specific library version? Do you have two different versions of the app? Or are you simply switching different dylibs in usr local lib? Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org

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

nd link to the included dylib so it doesn’t depend on the installed version. Regards, Ted Park > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-us

Re: [FFmpeg-user] Can I convert from .ram to .mp4?

le and experienced than a random YouTuber you might find. Best regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Issue in video compression

file to work with, you can use constant quality (vs. constant bitrate) encoding settings, using -crf to control the output filesize by trial and error, instead of explicitly specifying the video bitrate Regards, Ted Park ___ ffmpeg-user mailing list f

Re: [FFmpeg-user] Cant find proper code for using complex filter and overlay with VAAPI

here is an automatic format conversion being attempted that is not happening. What is the input format of x11grab? The command is too complicated right now to investigate efficiently. Can you try a simple screen capture and single overlay with increased verbosity

Re: [FFmpeg-user] delay time in live ultrasound converter

I don't know where I can find bats nearby so I couldn't try it but how does it work? The book makes it sound like you can use any mic, even one built into a laptop for this? I suppose that's plausible looking at a typical mic's frequency response graph, they are just cut off at 20khz, and don't rol

Re: [FFmpeg-user] hw_decode.c on osx?

;t expect it to work in the first place I guess. Do you know hardware decoding works in ffplay? It's harder to tell for mac frameworks imo, I'd try attaching to ffplay and seeing if you can get it to use a hardware decoder. Which gpu does the machine have? Regards, Ted Park __

Re: [FFmpeg-user] ffmpeg architecture question

d the 55 telecine filter script you came up with, and eliminate as many splits as possible, do you mean how the datascope wouldn't appear for the frames selected? Same timestamps might be the issue again, maybe setpts=PTS+1 would make them show up? Or does interleave take identical

Re: [FFmpeg-user] hw_decode.c on osx?

literally mean just the compile step using cc. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Flutter FFmpeg

verything is shifted 16 bits (long is 32 isn't it?) and it actually looks like the moov atom is cut short based on the length field, not appended by other top-level atoms as I originally thought. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] propagation of frames in a filter complex

24 viewed on a 120Hz TV? That wouldn't be surprising, but I'm comparing the result of the same processing just switching between a 120Hz timing and 60Hz timing. I think it's because my laptop is not doing it fast enough to reach 60f

Re: [FFmpeg-user] Copy across core DTS audio

rst (with index 0) audio stream. Hence the suggestion to use -bsf:a:0. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

like a "dailies farm in a backpack". (the "reference" hw accelerated encoding tool included in Raspbian produced output that didn't look as good as I expected from the bitrate) Regards, Ted Park ___ ffmpeg-user mailing list ff

Re: [FFmpeg-user] propagation of frames in a filter complex

do it. Yes, now I understand that it would reduce the stuttering you can get, I didn't know there were 60Hz display controllers that weren't capable of switching to 48Hz (and 96Hz for 120Hz displays) until recently. But I don't understand why the same 60fps result looks so much worse

Re: [FFmpeg-user] ffmpeg architecture question

s something out, it looks closer to the original 24/1.001. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org w

Re: [FFmpeg-user] Copy across core DTS audio

u could just put -c copy and specify -bsf:a:0 here) Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] propagation of frames in a filter complex

don't fully understand the rationale, but I was curious and tried it, on film material I can't tell the difference but animation looks horrible at 120Hz (like I'm dizzy, like a slow motion blur effect at regular speed?) but it's fine at 60Hz. Regards, Ted Park ___

Re: [FFmpeg-user] Copy across core DTS audio

s a simple syntax error that I have, so any help would be much > appreciated -bsf:a applies to all audio streams, thus the error. You can specify the stream in a similar way as you specified -c:a:1 copy (for some reason? -c:a copy should be enough I

Re: [FFmpeg-user] rtsp stream interruption

em should be able to handle? (Memory or storage space-wise) What are you trying to achieve with the -r and fps filter, it doesn't look like it's doing anything other than duplicating massive numbers of frames, each one just as big as the one before with no te

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

I feel like you should fix that library mismatch warning if only as a cosmetic improvement, either reinstall from apt or some static build. I don't think there's much difference whether you specify -s or use scale filter if all you're doing in the end is scaling the frame size.

Re: [FFmpeg-user] rtsp stream interruption

>"-", Why does it say it stopped? loglevel doesn't have an option 99, I don't know what happens when you put in 99 but you might end up with binary 99&56 (56 being the as verbose as possible option, if my memory serves me right) Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] propagation of frames in a filter complex

it-chained-to-split complex graph. But I think you could use the multiple output option for select filter, where you use the value to select which pad the frame gets sent to. (It isn't evaluated as a boolean in that case, so if value is 3.??? it goes to output pad 3, if it's 0.?

Re: [FFmpeg-user] concat demuxer filter_complex (fade)

ing frames for clip 2, when you can stop looping the first part, etc. Like, one filter vs one filterchain. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

cases. Did you try without the -vf ? Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Flutter FFmpeg

e recording that qtfaststart completely fubar'ed, I think something to do with the export/share option adding a bunch of top-level metadata atoms after the moov? Could you possibly try importing the file doing your best not to let iOS alter it, and compare

Re: [FFmpeg-user] concat demuxer filter_complex (fade)

to see how that is complicated if nothing else. Anyway, I remembered that using the ffconcat file, you can define streams within the virtual single input from the concat demuxer, but I've only ever seen it used to specify specific elementary streams within vob files, no

Re: [FFmpeg-user] ffplay options for setting audio volume and locating player windows on the screen

tc but a lot of things don't work and is a pain in the neck in general. I'm pretty sure the static build is appkit. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user T

Re: [FFmpeg-user] Muxing multiple files and concatenating those outputs

ame to find which ones to put together? Or is there a call log to reference? Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] ffplay options for setting audio volume and locating player windows on the screen

ownload the latest release, but it's actually pretty old (relatively) since by nature there is only a few a year, if that. The options I mentioned go back a couple years though, so I'm not sure, maybe it wasn't working for some time?

Re: [FFmpeg-user] ffplay options for setting audio volume and locating player windows on the screen

tried the -volume option to start out at 30% volume, but that option > also wasn't found. I'm not sure if it's the same across all libraries/OS's, but -left and -top set the distance from left and top of screen respectively, for me. And when you specify volume, try not i

Re: [FFmpeg-user] Muxing multiple files and concatenating those outputs

29 -i 20_01_886.g729a -f g729 -i 20_01_886.g729b > -filter_complex > '[0][1]amerge,afifo[l1];[2][3]amerge,afifo[l2];[4][5]amerge,afifo[l3];[l1][l2][l3]concat=v=0:a=1:n=3' > I think this will do what you want, the individual input pads to amerge and/or fifo might not be needed

Re: [FFmpeg-user] concat demuxer filter_complex (fade)

Hi, The filter is not in the version of ffmpeg you are using, you will need to get a more recent version for it to be there. Try downloading a recent static build from the website or try compiling it yourself. (It's not in any release version as far as I can tell) Regards, Ted

Re: [FFmpeg-user] Failed to open codec in avformat_find_stream_info

Hi, > What am I doing wrong? > > I searched but could find no resolution to this error. Maybe my last reply didn’t go through. Try using the bluray scheme to access the file. >> Begin forwarded message: >> >> From: Ted Park >> Subject: Re: [FFm

Re: [FFmpeg-user] AMD GPU + Vaapi encoding problem

hat Vulkan looks like (with Apple cutting it off with their own API and all…) but I thought those ffmpeg options the way you used them would only apply to the decoder? And then the encoder used is Cisco’s version… A bit confused here. Regards, Ted Park __

Re: [FFmpeg-user] AMD GPU + Vaapi encoding problem

itting the argument list: Option not found The option might not be there any more, try using -init_hw_device instead, and use -hwaccels to list additional hardware support? Also confirm this is the same machine (or at least with similar hardware) that ran the earlier command? Regards, Ted Park

Re: [FFmpeg-user] ffmpeg low bitrate with with qulaity

don't see how you achieve 5 Mb/s is you encode with "-b:v 6M" and "-b:a > 128k", that's more than 6.1 Mb/s. I think because it’s a single pass encode, and the encoder simply didn’t find the need for the extra (target) bitrate

Re: [FFmpeg-user] Works in ffmpeg-git, doesn't in ffmpeg 1:4.2.2-5

's web > own site. ffmpeg is another example where using the distro's package is > probably not a good idea. > > z! Are you talking about how like Debian got their ffmpeg packages hijacked years ago I think the ffmpeg on the

Re: [FFmpeg-user] Upmixing Dolby Pro Logic audio - still not possible?

25.com/dolby/Assets/US/Doc/Professional/208_Dolby_Surround_Pro_Logic_Decoder.pdf <https://media.kumowoon1025.com/dolby/Assets/US/Doc/Professional/208_Dolby_Surround_Pro_Logic_Decoder.pdf> Also check out Dolby’s GitHub <https://github.com/DolbyLaboratories>, though I doub

Re: [FFmpeg-user] Please help confirm if this hard, system crash is reproducible

[a1][a2]amix” > > > Michael I did, and nope, nothing happened. This was on OSX 10.14 (first machine was running 10.15.5) so I might try on yet another machine but I’ll leave that for later if I end up not being able to fix the issue on this machine. If anyone has ffmpeg on 10.15.3~5 fr

Re: [FFmpeg-user] Upmixing Dolby Pro Logic audio - still not possible?

e, though you might want an empty equipment rack handy) you could get the matrix coefficients by googling for them and do the math and get the separated channels by hand. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https:/

Re: [FFmpeg-user] Please help confirm if this hard, system crash is reproducible

rted in between. > Did you try > "anoisesrc[a1];sine[a2];[a1][a2]amix” I will try on a secondary machine (I was not expecting that crash the first time x_x ) and be sure to report back. Regards, Ted Park ___ ffmpeg-user mailing list ffmpe

[FFmpeg-user] Please help confirm if this hard, system crash is reproducible

0KB sq=0B f=0/0 9.09 M-A: 0.000 fd= 0 aq= 364KB vq=0KB sq=0B f=0/0 9.12 M-A: 0.000 fd= 0 aq= 380KB vq=0KB sq=0B f=0/0 9.15 M-A: 0.000 fd= 0 aq= 380KB vq=0KB sq=0B f=0/0 9.18 M-A: 0.000 fd= 0 aq= 380KB vq= 0KB s

Re: [FFmpeg-user] Need help splitting stereo FLAC into two separate files

al significance win the windows command line? (and while I’m asking, where do back-ticks and apostrophes fall?) So is the ffescape tool compiled differently to work properly when compiled on/for windows? Regards, Ted Park ___ ffmpeg-user mailing l

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

inal disc and remux to a p24 MKV container > with zero loss. In the meantime I will have a 60fps video to watch that's as > good as the original and is free of telecine judder. I meant the transcoding part. It’s already been mastered onto the dvd/bd with h.264. But if you’re going

Re: [FFmpeg-user] Need help splitting stereo FLAC into two separate files

ight to center (maybe aformat=cl=mono will suffice) take a look at the -map_channel option, it might be simpler for you. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscri

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

make edits and “freeze” it as part of a submix, it’s not going to sound the same when you shrink it back down to its original time. I don’t know if there would be other limitations if you kept the raw yuv video throughout, but then as efficient as H.264 is, you’d be talk

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

Paul was a > developer -- why would I? Maybe not for that filter/file but as someone *trying* to contribute, I can attest to Carl being an active maintainer, his name is hard to miss in the commit history. Regards, Ted Park ___ ffmpeg-user mail

Re: [FFmpeg-user] Question on Segment TImes

timestamps/timecodes are pretty much the same thing since they use either LTC or VITC on the tape that encodes the date (timestamp) as well as the timecodes, in a “striped” tape anyway. It’s how your deck knows when one shot ends and another begins. So it doesn't support timestamps as met

Re: [FFmpeg-user] Timestamps are unset & Error writing trailer

pretend CSS/AACS isn’t implemented, and even then, I wouldn’t bet on it working 100% perfect. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email

Re: [FFmpeg-user] Drop frames during framemd5 calculation of DPX files

gt; Isn’t the framerate the film source original if it’s there? > > I don't know for sure but if you are talking about scans, > this simply doesn't matter. I was actually asking because I was wondering if there were any systems out there that save t

Re: [FFmpeg-user] Convert audio stream to AC4

al? Or is there some additional requirement for the stream to play on a Samsung TV? Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or em

Re: [FFmpeg-user] Failed to open codec in avformat_find_stream_info

dd34864600] Could not find codec parameters for stream 0 (Unknown: none ([145][0][0][0] / 0x0091)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #8, mpegts, from 'TITLE/BDMV/STREAM/8.m2ts': Durati

Re: [FFmpeg-user] Failed to open codec in avformat_find_stream_info

y work. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Failed to open codec in avformat_find_stream_info

y in regular blu-ray players. Those m2ts files are a bit different from the typical mpeg program streams. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, vis

Re: [FFmpeg-user] Failed to open codec in avformat_find_stream_info

5M probably didn’t help. >> Regards, >> Ted Park > > Per https://ffmpeg.org/ffmpeg-all.html#Format-Options, > > "probesize integer (input) > Set probing size in bytes, i.e. the size of the data to analyze to get stream > information. A higher value will enable det

Re: [FFmpeg-user] Failed to open codec in avformat_find_stream_info

Mail acting weird as always :| If anyone could suggest a good (less randomly behaving) alternative to the default mail app on Mac I’d be much obliged. Anyway I was typing that I’m pretty sure 50M is the default for probesize so starting way down at 5M probably didn’t help. Regards, Ted Park

Re: [FFmpeg-user] Failed to open codec in avformat_find_stream_info

bluray, start from chapter 2: -playlist 4 -angle 2 -chapter 2 bluray:/mnt/bluray Not By Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg

Re: [FFmpeg-user] Drop frames during framemd5 calculation of DPX files

not know that, why would it ignore the frame rate? Isn’t the framerate the film source original if it’s there? Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, vi

Re: [FFmpeg-user] How to compress .MOV file compatible to Canon camera

ng the file names/numbers and for the same file, it would play if I named it a certain number but not for a different number so I really think there’s some external factor involved. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Drop frames during framemd5 calculation of DPX files

nc drop? Since the issue is the misdetected frame rate? Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] BT.709 -color_primaries -color_trc -colorspace ?

or pal. I think -colorspace 709 precludes the need to set primaries and trc but I could be wrong. > As you can see below, the transcode 'Output' status doesn't say what it > defaults to. Yeah, from that I’m thinking neither libx265 nor ffmpeg has any defaults. Left to

Re: [FFmpeg-user] Copy all subtitle streams? Possible?

ience feature for subtitles, since if you specify a subtitle format then you obviously want at least one subtitle track included in the output and you probably picked a compatible format at that. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-

[FFmpeg-user] Is there a common build configuration with 10+bpc rendering capability in ffplay?

I’m only thinking of 10bpc, sdr at the moment) Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject

Re: [FFmpeg-user] drawtext, suggestion for improvement

g, I wonder if there is some history behind it. Manually entering the code point in a UTF-8 document goes so far as to crash the character viewer pane on my Mac, I’ll have to test on more. In the drawtext filter it seems to depend on the actual font and its glyph table, some of them render i

Re: [FFmpeg-user] Copying a EIA-608 subtitle stream in an m4v

r/scene titles track from the timed thumbnails disposition on the image track? I don’t think I’ve seen it like that, it reminds me of mkv’s chapters, curious about it now, I don’t seem to remember iTunes being this way ~2016. Does the movie ha

Re: [FFmpeg-user] Copying a EIA-608 subtitle stream in an m4v

mov/mp4/m4v has a pretty solid definition of its structure that tools exist that work on the files in-place. If by other suggestions you meant alternative tools, gpac, l-smash, mp4box are some tools that can work on ISO-family format files, if not in-place, piece by piece. If yo

Re: [FFmpeg-user] How to change overlay parameter at runtime

the configure script, in addition to zmq. I’ve never heard of rabbitmq, can someone comment on the differences between them? Is it more popular? It’d be hard to be easier or lighter than 0mq but if anyone is familiar with it I’d be much obliged

Re: [FFmpeg-user] First 10 seconds don't work well

o in the video. You can try putting the -ss argument before the input to see if it provides the behavior you are looking for. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To uns

Re: [FFmpeg-user] FFmpeg not making videos unique after re-encode

o ensure the same encoding parameters… Since not all of them are available for me to specify I assume at least some of them are managed by the program. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/lis

Re: [FFmpeg-user] screen cast windows 10 desktop with audio

ltek High Definition Audio)': > Duration: N/A, start: 123897.214000, bitrate: 1411 kb/s >Stream #1:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s Why not use dshow for both? Anyhow, do you mean that if you don’t stream audio just the video

Re: [FFmpeg-user] Make Video Unique by ffmpeg

allel processing and all. On the other hand you say that premier produces 2 different outputs, so I doubt you mean they are different visually, and am kinda confused as to how you evaluated the files for “uniqueness." Regards, Ted Park ___ ffmpeg

Re: [FFmpeg-user] Question on AVFoundation and importing from a DV-VCR

nd use final cut there, or install windows 10 and premier with their trial/nfr licenses and archive all the dv tapes you have now. Even on mojave the newer versions of FCPX are finicky with tape decks :/) Regards, Ted Park ___ ffmpeg-user mailing list ff

Re: [FFmpeg-user] "Invalid argument" when running ffmpeg.exe with a pipe as video input

each end opens it (permission wise). Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject

Re: [FFmpeg-user] How to slow down a video

Hi, > for video: -vf setpts=0.5*PTS > for audio: -af atempo=2 Actually, he wanted to slow down the video so you probably meant the reciprocal of this, 2*PTS and atempo 1/2 Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Copying a EIA-608 subtitle stream in an m4v

ubtitles. - Try mapping all input, negative mapping the stream you don’t want, and stream copying into QuickTime (.mov). -strict -2 might be needed. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Drop frames during framemd5 calculation of DPX files

imated 1 fps off? Try specifying 1 fps higher from what is detected explicitly at the input. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email

Re: [FFmpeg-user] How to assessment the memory will use when motion interpolation on a 4k video?

lower data rate movies? Try using a newer a newer build as well. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Using convolution files with ffmpeg

ol had a convolution function that would generate a model of the venue that served as a general starting point for mixing, is it something similar? Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/list

Re: [FFmpeg-user] Screenrecording, audio is sped up when other process starts

give satisfactory results, since the audio format resampling will be handled for you by alsa even if clients use different configurations. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Screenrecording, audio is sped up when other process starts

sound mixer in pygame is to not enable it… So if there’s no sound I don’t think that is the issue. I thought the glitch was the short high pitched noise in the video at 13 seconds in, is it observable anywhere else in that clip? Regards, Ted Park __

Re: [FFmpeg-user] Screenrecording, audio is sped up when other process starts

Hi, If you only need mic audio, grab hardware device exclusively or make sure pygame doesn’t touch the same card/device. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To

Re: [FFmpeg-user] Converting Quicktime (.mov ) from iPhone to mp4

Hi, > FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard > Mac OSX universal build for ffmpegX Are you running a PPC Mac? I wonder how you were led to download this. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Understanding how to use FFmpeg on macOS

dropped support for a lot of features in the format, including some that are still in use (basically any function/codec not available 64bit). How did you convert the mts to a mov? I am pretty sure you have to change the underlying structure of the video to convert from one to the other. Regards, Ted

Re: [FFmpeg-user] FFMpeg and H.323

you need to build one yourself, that would be a pretty big project, but yes, a video stream is only a small part of the system. You mentioned Zoom, that’s a possible vendor that could provide the “everything else”. Tandberg (Cisco) is also a big name. Regards, Ted Park ___

Re: [FFmpeg-user] FFMpeg and H.323

e of a protocol than format. Speaking generally, I guess you could say ffmpeg can produce a stream that conforms to H.323, (by encoding mu-law/a-law and optionally H.261 and using RTP) but anything else is going to depend on (all) the equipment facilitating session communication

Re: [FFmpeg-user] Facing issues in streaming videos

k at the available memory, it only drops from 15408016 KiB to 15363132KiB, about 50MB. If you start another program that requires a lot of memory, that buffer would probably be cleared immediately. The other situation where you are downloading the stream and starti

Re: [FFmpeg-user] Selecting MPEG TS child streams for filter_complex

by the output is the intuitive way to structure the command, if that counts as a reason. Iirc, “complex” filtergraphs as opposed to the older/simpler -vf, -af filters have implicit input and output pads for each chain that can be remapped pretty fr

Re: [FFmpeg-user] Remove everything but a single color (range)

g else black: > > ffplay -f lavfi -i 'smptehdbars=duration=5' -vf > "colorhold=color=0xbcc906:similarity=0.25,chromakey=color=black:similarity=.2" > > but this displays all bars in gray scale except the yellow bar which is in

Re: [FFmpeg-user] Facing issues in streaming videos

ut doesn't that indicate that by the time you launched ffmpeg, only ~1% memory was available? Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link abov

Re: [FFmpeg-user] How to compress .MOV file compatible to Canon camera

butes, it also means you need to know what to change to get the result you want. Off the top of my head mp4box and atomicparsley are some programs that do this. If you have a PPC Mac there’s an ancient version of “Atom Inspector” for quicktime that Apple provides. Just curious, but

Re: [FFmpeg-user] Remove everything but a single color (range)

eme of representing/storing color, so using rgb values to key the subject out might not be ideal. But still, try using colorkey or colorhold with higher similarity values first. Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https:

Re: [FFmpeg-user] How to compress .MOV file compatible to Canon camera

e hardware to test either, I mean I have Canon cameras but chances are not the one OP has :p Regards, Ted Park ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link abov

Re: [FFmpeg-user] How to compress .MOV file compatible to Canon camera

Hi, >> Here it is: https://cloud.disroot.org/s/fBeePRoA4JGZNMB Ah, yes I did, thank you, sorry, I must have made a mental note to download it after 15 mins then forgot about it because I have the attention span of a goldfish. Regards, Te

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