Re: [FFmpeg-user] Differences between ffmpeg and ffplay

On 10/2/18, Michael Koch wrote: > I'm still experimenting with the ultrasonic converter. Converting from > one file to another file works without problems: > > C:\Users\mkoch\Desktop\Ultrasonic Live>c://ffmpeg/ffmpeg -i > test_15kHz.mp3 -f la > vfi -i aevalsrc="sin(12000*2*PI*t):c=stereo:s=44100"

Re: [FFmpeg-user] Converting DNxHD (Atomos) .mov files to mp4 issues

On 9/28/18, Kassim Massop wrote: > Dear community, > > I have been using ffmpeg to convert .mov files captured from my Atomos > Ninja inferno for a few weeks now. > > I recently recorded about an hour of footage in 4k resolution for the first > time and when I use the commands that normally

Re: [FFmpeg-user] silencedetect floor

; documentation. Just set it to some number, like "-40dB" or 0.05. > > Le 2018-09-23 `a 17:06, Paul B Mahol a ecrit : >> On 9/23/18, Josh McNeill wrote: >>> I'm trying to figure out a way to detect silence with FFmpeg but not >>> absolute/digital silence. Is it

Re: [FFmpeg-user] Quick question

On 9/24/18, Ivan Arsic wrote: > Heya ! > > I tried to convert some exr images with ffmpeg tho im getting an error and > im not sure if its triggered by something else (like my mistake) or its > just as is: > > *[exr @ 01a596cac380] Compression 8 is not implemented. Update your > FFmpeg

Re: [FFmpeg-user] Multiply audio samples

On 9/20/18, Michael Koch wrote: > >> >>> c://ffmpeg/ffmpeg -i ultrasonic.wav -f lavfi -i >>> "sine=frequency=15000:sample_rate=48000" -filter_complex >>>

Re: [FFmpeg-user] Timestamp for variable frame rate (VFR ) video

On 9/17/18, Wolfgang Hugemann wrote: >> You want timecode and not pts, look at >> drawtext manual. > > You may assume that I already did that. > > IMHO, the main issue is not drawtext, but where to get the text from. > There only a few ready-made options, all other information has to be > drawn

Re: [FFmpeg-user] Timestamp for variable frame rate (VFR ) video

On 9/17/18, Wolfgang Hugemann wrote: > I have a WhatsApp video which is definitively VFR, as can be told from > the content (a passenger car at constant speed) and is reported by the > new vfrdet filter. > > I would like to display a timecode in each frame, derived from the frame > metadata: > >

Re: [FFmpeg-user] Multiply audio samples

On 9/16/18, Michael Koch wrote: >> Filter inputs will be auto-converted from any non-float formats to >> float or double one. Float/double formats are in [-1 .. +1] interval. > > Thank you very much for the amultiply filter, it works great! > > Here is an example for an ultrasonic converter which

Re: [FFmpeg-user] Multiply audio samples

On 9/15/18, Michael Koch wrote: > Am 15.09.2018 um 09:33 schrieb Gyan: >> On Sat, Sep 15, 2018 at 12:13 PM Michael Koch >> >> wrote: >> >>> Which other filter can I use to convert the input to -1..+1 interval, >>> and convert the output back to 16bit or 24bit interval? I saw that the >>>

Re: [FFmpeg-user] Multiply audio samples

On 9/12/18, Paul B Mahol wrote: > On 9/12/18, Michael Koch wrote: >> Am 12.09.2018 um 09:55 schrieb Paul B Mahol: >>> Hi, >>> >>> On 9/12/18, Michael Koch wrote: >>>> Is it possible to multiply audio samples from two sources? >>>&g

Re: [FFmpeg-user] how to specify pixel format of input image pixels

On 9/14/18, Mayur Patel wrote: > Setting the photometric interpretation to 6 (YCrCb) AND uncompressing the > pixels produces a result which is largely green. I'm assuming at this point > that my channels need to be shuffled. Please provide such files. > > Thanks for the help. > Mayur > >

Re: [FFmpeg-user] IMM5 codec for transcoding on the Mac

On 9/13/18, Jason Sellers wrote: > Hi, > > I was wondering if there was any development, ongoing or planned for > integrating the IMM5 codec into the Mac version of FFmpeg. Wrote IMM5 decoder, need more samples to improve it. ___ ffmpeg-user mailing

Re: [FFmpeg-user] IMM5 codec for transcoding on the Mac

On 9/13/18, Jason Sellers wrote: > Hi, > > I was wondering if there was any development, ongoing or planned for > integrating the IMM5 codec into the Mac version of FFmpeg. No, unless someone step in with request to sponsor developement. ___

Re: [FFmpeg-user] Multiply audio samples

On 9/12/18, Michael Koch wrote: > Am 12.09.2018 um 09:55 schrieb Paul B Mahol: >> Hi, >> >> On 9/12/18, Michael Koch wrote: >>> Is it possible to multiply audio samples from two sources? >>> I'd like to downconvert the 15kHz to 25kHz range to the 0 to 10kH

Re: [FFmpeg-user] Multiply audio samples

Hi, On 9/12/18, Michael Koch wrote: > Is it possible to multiply audio samples from two sources? > I'd like to downconvert the 15kHz to 25kHz range to the 0 to 10kHz > range. First apply a strong 15kHz highpass filter, then multiply the > signal with a 15kHz sine wave (which produces sum and

Re: [FFmpeg-user] Reconnecting ffmpeg rtsp connection

On 9/11/18, Michael Shaffer wrote: > Yea ffmpeg tends to crash every once in a while. I'm streaming 5 cameras to > youtube. I had to write a program to monitor the bandwidth usage and > restart ffmpeg automatically when it crashes. Closing != crashing. > > On Mon, Sep 10, 2018 at 10:46 PM,

Re: [FFmpeg-user] remap filter gives only black and white output

On 8/24/18, Shaji stellaton wrote: > Hello, > > I want to report a functionality regression. > > In version 3.3.2 remap filter gives out colored output for yuv420p but in > katest version ut gives out black and white for yuv420p. > > The command used in both versions is: > > ffmpeg -y

Re: [FFmpeg-user] 3D depth in output

On 8/31/18, xbmcgotham2014 wrote: > Hi, > > I was successful in converting a 3D SBS to 3D TAB using the following > string: > > ffmpeg -i input.mp4 -vf stereo3d=sbsl:abl,scale=1920x1080 -aspect 16:9 > -c:a copy output.mp4 > > > However when playing the output file, I noticed that the depth of the

Re: [FFmpeg-user] Correct command line for 3D SBS to 3D TAB conversion

On 8/29/18, xbmcgotham2014 wrote: > Hi, > > Anybody have the complete command line for converting a 3D Side By Side > video to 3D Top and Bottom video, which will keep the original > quality/audio as much as possible? > > I have a few 3D SBS that now wont play anymore on the projector as it > was

Re: [FFmpeg-user] Can I get some help converting .sec files?

On 8/27/18, LH wrote: > Okay, can we go back a step. How do I get the data that you want? After I > run > a conversion, do I copy the contents of the command prompt? Or is there a > way to save a log? I'm sorry, I'm kind of at the basic level. Input file, is your .sec file.

Re: [FFmpeg-user] Audio delay doesn't work as expected

On 8/27/18, Michael Koch wrote: > In the first example I have two identical 1kHz sine sources. The first > source is delayed by 0.5ms (which means 180DEG phase shift), and then both > channels are mixed. This works as expected, the result is silence. > > ffmpeg -f lavfi -i sine=f=1000:d=5 -f

Re: [FFmpeg-user] Can I get some help converting .sec files?

On 8/27/18, LH wrote: > Thank you. Can you explain how I do that? I tried to find instructions on > this site but was unable to. Use any sane upload service, and then post link here. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Can I get some help converting .sec files?

On 8/25/18, LH wrote: > Hi, I have a Samsung security system which saves video in the .sec format > which no other app can play. The Samsung SmartViewer app has developed > issues and is no longer updated/supported so, as a result, I cannot play > saved .sec files with it, either. So- I can save

Re: [FFmpeg-user] remap filter gives only black and white output

On 8/24/18, Shaji wrote: > Hello, > > I am using the latest ffmpeg version. I am facing the same issue as > discussed in the thread: > > https://ffmpeg.org/pipermail/ffmpeg-user/2017-November/037971.html > > That is remapping produce black and white output. If I use the workaround of > using the

Re: [FFmpeg-user] Decoding g726 audio

On 8/22/18, #J+L+ X+S+W+N% wrote: > I get: Unknown input format: 'g726' Then your ffmpeg is too old. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email

Re: [FFmpeg-user] Decoding g726 audio

On 8/22/18, #J+L+ X+S+W+N% wrote: > Tried: ffmpeg -acodec g726 -ac 1 -ar 8000 -i > 7011-20171231-073835-Mitzvah5.g726 -f wav -y test.wav > Got: Invalid data found when processing input > > Tried: ffmpeg -f s8 -acodec g726 -ac 1 -ar 8000 -i > 7011-20171231-073835-Mitzvah5.g726 -f wav -y test.wav >

Re: [FFmpeg-user] Fade in filter and alpha channel fade in text

On 8/12/18, Joshua Grauman wrote: > Hi all, > > I am combining various effects, and I noticed that when I fade in a video > using the [in]fade=t=in:st=2:n=24[out] syntax, and I fade in text using > alpha='if(lt(t,2),0,if(lt(t,3),t-2,1))', that they both fade in roughly at > the same time, but

Re: [FFmpeg-user] exponential decay, is it possible?

On 8/5/18, Michael Koch wrote: > Am 05.08.2018 um 15:42 schrieb Gyan Doshi: >> >> >> On 05-08-2018 06:41 PM, Michael Koch wrote: >>> I'd like to ask if it's possible to make an exponential decay effect >>> with FFmpeg. >>> Let's assume a pixel is fashing to luminance = 1 in just one frame. >>>

Re: [FFmpeg-user] buffer underflow - processing VOB files

On 8/2/18, Carl Zwanzig wrote: > On 8/2/2018 11:39 AM, Paul B Mahol wrote: >> Without sample we can not help you. > > Sure 'we' can, an input sample isn't needed to review the patch. (A sample > is only needed to _test_ the patch.) > > (It really looks like Bob's help

Re: [FFmpeg-user] buffer underflow - processing VOB files

On 8/2/18, Bob DeCarlo wrote: > Hi Paul, > (greatly appreciate your interest) > > The patch that fixes the core dump I think was added by you: > commit 0b86ea03d8415b5a3a6b07f3012a8097bca26ea5 > Author: Paul B Date: Fri Mar 30 10:14:48 2018 +0200 > avcodec/ac3: fix out of array access

Re: [FFmpeg-user] buffer underflow - processing VOB files

On 8/2/18, Bob DeCarlo wrote: > > > > I located the fix for the core dump issue and create a patch: > > $ git diff 91bb871376730a2394ed0ae1a3fd4295977002d3 > 0b86ea03d8415b5a3a6b07f3012a8097bca26ea5 >p.patch > Next, I applied this patch to commits and found this commit to be the one > that causes

Re: [FFmpeg-user] repeat first and last frame of a video

On 8/1/18, Michael Koch wrote: > Hi, > > is it possible to do the following with ffmpeg? > > Repeat the first frame of a video 100 times (with the same framerate as > the video), then copy the video, then repeat the last frame 100 times? If you mean to copy video without generally losing quality

Re: [FFmpeg-user] ffmpeg pop and deesser filters

On 7/31/18, Joshua Grauman wrote: > Hello all, > > I am using ffmpeg to edit videos of speeches/talks (like a TED talk). I am > using a headworn microphone. I would like to add an audio filter to get > rid of 'pop' and 'ess' sounds, especially present when pronouncing the 'p' > sound and 's' and

Re: [FFmpeg-user] run ffplay to test sidechaincompression

On 7/28/18, Carvel Avis wrote: > Is ffplay limited to 1 input? If so, how do you test sidechaincompression, > for example, using audio stream from a video to compress an audio file? > > Using ffmpeg, I am running something like this: > > ffmpeg -i render-0.wav -i temp.mp4 -y -filter_complex \ >

Re: [FFmpeg-user] Top posting?

On 7/25/18, Jonathan Mallett wrote: > Hi Z, > > Apologies, I was just following the steps on the mailing list page. > LOL, you just top posted here. >> Once you subscribe you can post a message to the mailing list by emailing >> your message to ffmpeg-user@ffmpeg.org. > > Not sure what I should

Re: [FFmpeg-user] Conference video-like filtergraph eating memory

On 5/9/18, Kevin Mark wrote: > I might have a patch submitted by the end of this month. If that's > outside your timeline feel free to work on it. > Have you started working on this? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] How to extract core DTS / DCA stream from a DTS 96/24 stream without re-encoding

On 5/19/18, Onetel wrote: > I tried that as well but the output is just a duplicate of the DTS 96/24 > stream, and has the same low volume problem as the original stream: > > command: ffmpeg -i in.dts -bsf:a dca_core -c:a copy -strict -2 out.dts > > output: > > Input #0,

Re: [FFmpeg-user] How to extract core DTS / DCA stream from a DTS 96/24 stream without re-encoding

On 5/19/18, Onetel wrote: > I have a DVD with a DTS 96/24 stream (Peter Gabriel - Play) but where this > has a known authoring error where this stream is very quiet. Other owners > have reported the same problem, however some who have audio systems which > can only decode

Re: [FFmpeg-user] 2.8.14 security updates

On 5/15/18, Bryan Duff wrote: > Is 2.8.14 up-to-date as far as known security issues (e.g CVE's) are > concerned? > > Looking at CVE's for ffmpeg, some will say "3.x.y and before" - does that > mean that they only affect 3.x? If not and they affect 2.8.14, then there > are a

Re: [FFmpeg-user] question about support adpcm_ima_smjpeg (ADPCM IMA Loki SDL MJPEG)

On 5/13/18, hot-dm-at-mail...@ffmpeg.org wrote: > Hello! > Could someone to build for me ffmpeg with encoder support of > adpcm_ima_smjpeg (ADPCM IMA Loki SDL MJPEG)? > I need convert video to mjpg with sound. Without this I can't to > complete my

Re: [FFmpeg-user] FFMpeg Exr Encoder

On 5/11/18, Matthew.Alexander - The Empire Post wrote: > Hi, > > > I've been trying to use ffmpeg to speed up processes here at work, however > it has come to my attention that ffmpeg does not have an encoder for exr, > all I want to do right now is take

Re: [FFmpeg-user] Conference video-like filtergraph eating memory

gt; planning on tackling this yourself at some point? If you not gonna do it eventually - I will. > > Thanks, > Kevin > > On Tue, May 8, 2018 at 11:29 AM, Paul B Mahol <one...@gmail.com> wrote: >> On 5/4/18, Kevin Mark <kmark...@gmail.com> wrote: >>> Hi Carl

Re: [FFmpeg-user] Conference video-like filtergraph eating memory

On 5/4/18, Kevin Mark wrote: > Hi Carl, > > I'm using the latter, the ffmpeg CLI. The entire command is: > > ffmpeg \ > -i DV_b2.mp4 \ > -i SCREEN_ba.mp4 \ > -i SCREEN_d9.mp4 \ > -i SCREEN_6d.mp4 \ > -i SCREEN_bb.mp4 \ > -threads 1 \ > -filter_complex 'filter here' \ > -map

Re: [FFmpeg-user] Conference video-like filtergraph eating memory

625305ba049cb3c1f57e88c1b49 e4edc567a077d34f579d31ef0bfe164c7abfac4c 8088b5d69c51b9329ccbc6d1125cf55c54ff6374 d0920da029c54c372c1daa93c6d976f2145daf62 15e9c4afdc8efbf8da86bb3f7eaf374310b44bf8 > > On Thu, May 3, 2018 at 5:31 PM Paul B Mahol <one...@gmail.com> wrote: > >> On 5/3/18, Kev

Re: [FFmpeg-user] Conference video-like filtergraph eating memory

On 5/3/18, Kevin Mark wrote: > Hi Paul, > > Thanks for the quick reply. Looks like my suspicions were correct. > Using the concat demuxer will be my path forward for now. Out of > curiosity would patching in the .activate API in the concat filter be > a large effort? I ask

Re: [FFmpeg-user] Conference video-like filtergraph eating memory

On 5/3/18, Kevin Mark wrote: > Hey everyone, > > I'm getting an OOM with the following ffmpeg complex filtergraph: > > > [0] scale=1920:1080,setsar=1/1,split=8[s1][s2][s3][s4][s5][s6][s7][s8]; > > [s1] trim=start=0:duration=0.144 [a]; > [s2]

Re: [FFmpeg-user] amid fails when there are more than 8 input channels (in one file)

On 5/2/18, Bouke / VideoToolShed <bo...@videotoolshed.com> wrote: > >> On 02 May 2018, at 15:56, Paul B Mahol <one...@gmail.com> wrote: >> >> On 5/2/18, Bouke / VideoToolShed <bo...@videotoolshed.com> wrote: >>> Hi all, >>> Strange thing, m

Re: [FFmpeg-user] Unable to build FFmpeg 4.0 on macOS

On 4/29/18, Reindl Harald wrote: > > > Am 29.04.2018 um 16:31 schrieb Carl Eugen Hoyos: >>> --enable-pic >> >> Why is this needed? >> (I see it often: If it has an effect, it makes the binary slower, so >> I wonder why people add it.) > > because other than you people care

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/25/18, Carl Eugen Hoyos wrote: > 2018-04-25 0:03 GMT+02:00, Gonzalo Garramuno : >> >> El 24/04/18 a las 18:32, Elliott Balsley escribio: >>> Here are a few sources stating there is a 12-bit codec. >>> Are you suggesting they are all wrong? > > Yes. >

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/25/18, Phil Rhodes wrote: > > > >> On 4/25/18, Gonzalo Garramuno wrote: >>> >>> >>> El 24/04/18 a las 18:32, Elliott Balsley escribio: Here are a few sources stating there is a 12-bit codec. Are you suggesting they are

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/25/18, Elliott Balsley <elliottbals...@gmail.com> wrote: > On Apr 25, 2018, at 01:11, Paul B Mahol <one...@gmail.com> wrote: >> >> On 4/25/18, Gonzalo Garramuno <ggarr...@gmail.com> wrote: >>> >>> >>> El 24/04/18 a las 18:32, E

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/24/18, Elliott Balsley wrote: >>> Looking at the source code here, I see that PRORES_BITS_PER_SAMPLE is >>> defined as 10. So it sounds like ffmpeg simply decodes all ProRes as >>> 10-bit. I would like to request the option to decode ProRes with 12-bit >>>

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/25/18, Gonzalo Garramuno wrote: > > > El 24/04/18 a las 18:32, Elliott Balsley escribio: >> Here are a few sources stating there is a 12-bit codec. Are you >> suggesting they are all wrong? > No, he is informing you that there's no 12-bit codec in ffmpeg. Please, do not

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/24/18, Elliott Balsley wrote: >>> Can it be possible for ffmpeg to misinterpret the image as 10-bit instead >>> of >>> 12, and still make the image look correct? >> >> No. > > > I think this actually could be possible. If you ignore the two least > significant

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/23/18, Elliott Balsley wrote: >> >> Two or more wrongs do not make one good. > > Sorry, I'm not understanding your point. The question I'm trying to > understand is, how are pixels actually encoded? Is each pixel represented > by a triplet of RGB / YUV values? If

Re: [FFmpeg-user] Unknown option "--disable-ffserver"

On 4/22/18, Reindl Harald <h.rei...@thelounge.net> wrote: > > > Am 22.04.2018 um 12:09 schrieb Reindl Harald: >> >> Am 22.04.2018 um 12:04 schrieb Paul B Mahol: >>> Nobody forces you to use this software, you are welcome to use something >>>

Re: [FFmpeg-user] Unknown option "--disable-ffserver"

On 4/22/18, Reindl Harald <h.rei...@thelounge.net> wrote: > > > Am 22.04.2018 um 07:57 schrieb Carl Zwanzig: >> On 4/21/2018 5:46 AM, Paul B Mahol wrote: >>> PEBKAC >> >> That is probably the most unhelpful answer on this list in a long time. >> In

Re: [FFmpeg-user] Ticket 3707 inquiry

On 4/22/18, Douglas Marsh wrote: > Found this ticket (3707) https://trac.ffmpeg.org/ticket/3707 > > Wondering if more sample files are needed to help out? > > I created DNxHR (DNxHD varient) with alpha output using Fusion 9 under > Linux and come to conclusion that the decoder

Re: [FFmpeg-user] Video Playing in Back & forth using FFMPEG

On 4/21/18, Carl Eugen Hoyos wrote: > 2018-04-20 13:27 GMT+02:00, Mansi joshi : > >> can you please give me solution for how to play video back& forth >> looping.like forward+reverse,reverse+forwrad looping. how to >> solve this problem using FFMPEG. >

Re: [FFmpeg-user] Unknown option "--disable-ffserver"

On 4/21/18, Reindl Harald <h.rei...@thelounge.net> wrote: > > > Am 21.04.2018 um 15:08 schrieb Reindl Harald: >> Am 21.04.2018 um 14:59 schrieb Paul B Mahol: >>> On 4/21/18, Reindl Harald <h.rei...@thelounge.net> wrote: >>>> >>>> A

Re: [FFmpeg-user] Unknown option "--disable-ffserver"

On 4/21/18, Reindl Harald <h.rei...@thelounge.net> wrote: > > > Am 21.04.2018 um 14:46 schrieb Paul B Mahol: >> On 4/21/18, Reindl Harald <h.rei...@thelounge.net> wrote: >>> could you guys make a decision if you spit out ffserver or not support >>>

Re: [FFmpeg-user] What ffmpeg filter can I use to adjust colour temperature?

On 4/20/18, Dmitri wrote: > I am using ffmpeg with a camera and need to adjust colour temperature to > the lighting, adjust to warm/cold/bright white. > > I've found an algorithm that calculates temperature in Kelvin to RGB values >

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/20/18, Elliott Balsley wrote: >> >> Or more likely a marketing issue. > > I think maybe what is happening is that since Resolve processes images in a > 32-bit space, and it's not convenient to fit 12-bit words, it pads each word > to 16-bits so then it fits better.

Re: [FFmpeg-user] ProRes XQ 12-bit support

On 4/17/18, Elliott Balsley wrote: > Sample clip here, this is 6MB. > https://drive.google.com/file/d/1hdBmoCgn_M-W-8siZGlEpI1oPNTCgvO_/view?usp=sharing > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org >

Re: [FFmpeg-user] Convert images to DNXHD 444

On 4/11/18, Matt Kitcat wrote: > Thanks. That makes sense. IS there a way I can change this. I > tried -color_range 1/2 but it makes no difference. Try zscale filter to convert rgb48 to yuv444p10 format. Also dnxhd encoder in ffmpeg supports rgba directly so no need

Re: [FFmpeg-user] Supported pix_fmts for decoders using -h decoder

On 4/15/18, Kieran O Leary wrote: > Hi, > > I was wondering if there was a reason why supported pix_fmts are > rarely seen when calling `ffmpeg -h decoder=$codec`. I did a quick > audit and it looks like pix_fmts are declared in the help section of > some decoders (see

Re: [FFmpeg-user] Lavfi video generator slow performance

On 4/13/18, Elliott Balsley wrote: >> Why do you convert to rgb48? >> Do you understand that this cannot improve quality? > > Yes of course. I don't care about the quality, but I need sample files in > this format to test my other program. > >> The mandelbrot filter is

Re: [FFmpeg-user] Convert images to DNXHD 444

On 4/10/18, Matt Kitcat wrote: > Hi Guys. > I am waiting for some test footage I can share because I have since > discovered that creating YUV444 might not solve my underlying problem. This > started when I generated a yuv422p10 DNxHD and the colours were different to

Re: [FFmpeg-user] Audio Meter filter

On 3/30/18, Martin Vignali wrote: > Hello, > > I would like to show an audio meter from an audio file (something like what > edit software display > or like Audacity display) > > I try the showvolume filter, but the result is not what i would like to > have. > > My

Re: [FFmpeg-user] mcompand

On 3/25/18, Martin Rouillard wrote: > Hi, > > I able to use the mcompand filter but I haven't found the correct syntax > to change to args, Is there a sample command you can share or is there a > option to view the arguments posted by default? > > Thanks >

Re: [FFmpeg-user] FFplay and MPV can't play this video but Parole can

On 3/25/18, Farhad Mohammadi Majd wrote: > Hello, FFplay and mpv can play it but there is no video output: > > Playing: > [ffmpeg/demuxer] mov,mp4,m4a,3gp,3g2,mj2: Missing key frame while > reordering index according to edit list > [ffmpeg/demuxer]

Re: [FFmpeg-user] Question about MNM4 codec

On 3/22/18, Daniel Lanza wrote: > Attachments available until Apr 21, 2018 > Hello, > > I am trying to convert a video with the MNM4 codec. I know that this codec > is not supported in FFmpeg, but is there still a way to get it to play in > something like VLC? The reason

Re: [FFmpeg-user] ProRes encoding: Question about FFmpeg docs

On 3/12/18, Moritz Barsnick wrote: > On Mon, Mar 12, 2018 at 08:24:26 +0100, Peter B. wrote: >> But now I know: >> >> * -c:v prores_ks: uses the documented profile strings >> * -c:v prores_aw (=prores): seems to work only with integers (not in the >> documentation/nor help)

Re: [FFmpeg-user] ProRes encoding: Question about FFmpeg docs

On 3/11/18, Gonzalo Garramuno wrote: > > > El 11/03/18 a las 08:40, Erik Dobberkau escribio: >> See >> https://video.stackexchange.com/questions/20555/what-are-the-differences-between-the-three-bundled-ffmpeg-prores-encoders >> It's a bit outdated but still good for background

Re: [FFmpeg-user] YouTube streaming of a static image...

On 2/9/18, Carl Eugen Hoyos wrote: > 2018-02-08 14:17 GMT+01:00 Gyan Doshi : > >> The (input) option for this is -stream_loop. > > If the input is an image (as in this case), "-loop 1" is the better option, > as you wrote in your mail, "stream_loop" is a

Re: [FFmpeg-user] despill filter usage??

On 1/27/18, Igor Cabrera wrote: > > up vote0down vote > > favorite > > I'm triying to make a good chroma key with ffmpeg but in my video there is > some green spill I've seen there is a despill

Re: [FFmpeg-user] FFMPEG sidechaincompress not working as it should?

On 1/8/18, Carl Eugen Hoyos wrote: > 2017-10-23 7:03 GMT+02:00 Frank @ Taapo : > >> ffmpeg.exe -i temp_music.aif -i temp_voice.aif -filter_complex >> "[1:a]asplit=2[sc][mix];[0:a][sc]sidechaincompress=threshold=0.1:ratio=5[bg]; > >> [bg][mix]amerge[fin*al]"

Re: [FFmpeg-user] FFMPEG sidechaincompress not working as it should?

On 10/23/17, Frank @ Taapo wrote: > I have been trying to get sidechaining to work with FFMPEG, but my complex > filter skills are lacking. > > I'm running two aif files into ffmpeg, hoping the voice would "duck" the > background music when the voice-over is speaking. But I get an

Re: [FFmpeg-user] merge two mono audio streams to stereo without losing end of longer input

On 12/22/17, Dave Horton wrote: > I'm merging two input audio streams using `-strict 2 -filter_complex > [0a][1:a]amerge" in order to produce a stereo recording, and I've noted that > per the documentation the output stream has the length of the shorter of the > two inputs.

Re: [FFmpeg-user] Stuck on adelay/amix sync problem..

version 1.8.1.1 > creation_time : 2017-12-14T20:17:02.00Z > Duration: 00:16:30.87, start: 986.042000, bitrate: 36 kb/s > Stream #0:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default) > Metadata: > title : Audio > > > > > On De

Re: [FFmpeg-user] Stuck on adelay/amix sync problem..

On 12/19/17, Mark Corner wrote: > I am having trouble with amix producing different results with different > input orders and only one input to amix staying in sync with the video. > > I am starting with three video and three audio files, vp8 and opus > encoded. There is a

Re: [FFmpeg-user] make error af_afir.o

On 12/9/17, George Nistor wrote: > Hi > I currently have an error when building FFmpeg > Here is the log: > > Any idea about the cause? What version of nasm/yasm do you have? Try to update version to latest release of nasm. ___

Re: [FFmpeg-user] Bit Depth of PNG Overlay with Alpha channel

On 11/26/17, Flatgrey wrote: > Thanks Gyan > > That improved things slightly. The difference is pretty noticeable though > to the output I can get with Premiere. > > Do you know if you can specify the colour bit depth for the png file? png supports 8 bit depth or 16 bit depth

Re: [FFmpeg-user] Splicing together videos with different characteristics

On 11/26/17, Full Name wrote: > I have a series of videos of my daughter giving piano recitals over the > years. The videos start when she was very little, playing with a single > finger, till now, that she can play the piano with high proficiency. I would > like to

Re: [FFmpeg-user] Amerge trouble

On 11/21/17, Erik Dobberkau wrote: >> And after that promote it to 24 bits again. >> Is there a way to force the channel split to work in 24 bits? >> (No idea how to squeeze pcm_s24le into the filter_complex part...) >> > > A more knowledgeable person than myself would

Re: [FFmpeg-user] remap filter gives only black and white output

On 11/22/17, Carl Eugen Hoyos wrote: > 2017-11-22 1:17 GMT+01:00 Michael Koch : >>> Do you see the same behaviour with current FFmpeg git head? >> >> sorry, I can't compile ffmpeg myself, that's too difficult for me. > > That should not be

Re: [FFmpeg-user] question about displace filter

On 11/18/17, Michael Koch wrote: >> Perhaps you could try remap filter? > > Unfortunately the remap filter has so few documentation. > No examples at all. Is it possible to create the Xmap and Ymap files with > ffmpeg? Yes, with geq filter. Remap filter documentation

Re: [FFmpeg-user] question about displace filter

On 11/18/17, Michael Koch wrote: >> One just substract each possible value with 128 and now you have [-128, >> 127]. > > The range is too small for my purpose. Is it possible to create 16 bit > displacements? Not yet. Perhaps you could try remap filter?

Re: [FFmpeg-user] question about displace filter

On 11/18/17, Michael Koch wrote: > In the documentation for the displace filter is written: > "The second input specifies how much to displace pixels along the > x-axis, ..." > If I understand this right, a video input file is "misused" for storing > the displacement

Re: [FFmpeg-user] Splitting DTS-X from MA/Core

On 11/10/17, Paul B Mahol <one...@gmail.com> wrote: > On 11/10/17, Simon Strudwick <strud...@gmail.com> wrote: >> Is it possible to remove the X component from a DTS stream, leaving only >> the MA/Core tracks? Or is there even any point in doing this? > > Current

Re: [FFmpeg-user] Splitting DTS-X from MA/Core

On 11/10/17, Simon Strudwick wrote: > Is it possible to remove the X component from a DTS stream, leaving only > the MA/Core tracks? Or is there even any point in doing this? Currently it is not possible to remove X part. > > I know I can remove the MA from the Core using

Re: [FFmpeg-user] ffmpeg error opening filters at mobile browser

On 11/1/17, lzmhhh123 wrote: > I use the ffmpeg at mobile browser. But it responds `Error opening filter` > both at safari and chrome. I need help. The log are as following. > You disabled too much. ___ ffmpeg-user mailing list

Re: [FFmpeg-user] ERROR: libmp3lame >= 3.98.3 not found

On 10/28/17, Carl Eugen Hoyos wrote: > 2017-10-28 21:12 GMT+02:00 Lou Logan : >> On Sat, Oct 28, 2017, at 10:31 AM, Reindl Harald wrote: >>> i guess this only affects the current snapshot since releases which >>> nobody should use - yes, sarcasm - have no

Re: [FFmpeg-user] benchmarking multimedia filters

On 10/18/17, Dave Rice wrote: > Hi ffmpeg-user, > > I'm trying to benchmark a filterchain that includes multimedia filters (in > this case with audio input and video output), but I'm having trouble finding > a way to start and stop the benchmarking. For instance with this

Re: [FFmpeg-user] Audio filter: removesilence doesn't appear to do anything

On 9/25/17, Quinn Wood wrote: > I have removed the video and am getting the same results. > silenceremove is not removing silence. > > ffmpeg -i ../2017-09-24T123913.mp4.done -vn -af > silenceremove=0:0:0:-1:0.5:-20dB:1 output.m4a > > https://pastebin.com/raw/xcGQFs30 > Are

Re: [FFmpeg-user] Audio filter: removesilence doesn't appear to do anything

On 9/25/17, Quinn Wood wrote: > I have used the following command > ffmpeg -i input.m4a -af silenceremove=0:0:0:-1:0.5:-20dB output.m4a > Try to set peak detection instead of rms. > on a file. When I use another tool (Audacity) to truncate periods over > 0.5 seconds of

Re: [FFmpeg-user] DNXHR444 and 12 bits encoding support

On 9/12/17, Richard Van Den Boom <r...@cryptolab.net> wrote: > Le 2017-09-12 11:23, Richard Van Den Boom a ecrit : >> Le 2017-09-12 11:02, Paul B Mahol a ecrit : >> >>>> Is there a way to force 12 bits depth with DNXHR encoding? If not,

Re: [FFmpeg-user] DNXHR444 and 12 bits encoding support

On 9/12/17, Richard Van Den Boom wrote: > Hi, > I'm interested in creating masters of short films using DNXHR444 > profiles. > According to the DNXHR specs : > > https://en.wikipedia.org/wiki/DNxHR_codec > > DNXHR444 should be using 12bits color depth. > However DNXHR encoding

Re: [FFmpeg-user] Dolby E decoder

On 9/11/17, Mike Brown wrote: > On Mon, Sep 11, 2017 at 09:23:36AM +0200, Fr?d?ric Busnel-Joncour wrote: >> > Looks like you need to resample audio to sample rate ac3 supports. >> >> I've just tried to convert two different Dolby E source from wav to u8, >> then ffprobe

Re: [FFmpeg-user] Dolby E decoder

On 9/10/17, Mike Brown <br...@mrvideo.vidiot.com> wrote: > On Sat, Sep 09, 2017 at 05:24:24PM +0300, foo86 wrote: >> On Fri, Sep 08, 2017 at 05:08:54PM -0500, Mike Brown wrote: >> > On Fri, Sep 08, 2017 at 03:55:35PM +0200, Paul B Mahol wrote: >> > > You ne

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