Re: [FFmpeg-user] ffmpeg automation

> > If I have a folder with 30 clips of various formats, codecs, frame-rates > and frame-sizes, is there a way to tell ffmpeg to grab random clips, only > select certain sections of certain clips, add a music track, and edit it > down to 30 seconds of exciting video and to render it out to say Mp4?

Re: [FFmpeg-user] Upscaling SD 4x3 to FullHD 16x9 - Aspect Ratio problem

Le ven. 22 juin 2018 à 15:10, Christoph Gerstbauer < christophgerstba...@gmail.com> a écrit : > > > > > > ​The "-s" option is incorrect in your case. From the documentation: > > > As an output option, this inserts the scale video filter to the end of > > the corresponding filtergraph. Please use t

Re: [FFmpeg-user] Upscaling SD 4x3 to FullHD 16x9 - Aspect Ratio problem

Le ven. 22 juin 2018 à 14:43, Christoph Gerstbauer < christophgerstba...@gmail.com> a écrit : > PROBLEM: But I get only a stretched 16:9 HD version of the 4:3 original > image. (no black bars at left and right) > > ffmpeg -i "F:\scaler test\_5sec.avi" -vf "crop=720:576:0:32, setfield=tff, > yadi

Re: [FFmpeg-user] Unable to initialize SDL, over X11 for only root

> > > In this particular case, there is a program daemon which is run as root > that calls ffplay. This is why the call is being made by the root user. > It seems something is different in the case of root over X11 vs. a direct > terminal call from the root user's desktop, but I don't have the fog

Re: [FFmpeg-user] ffmpeg sometimes does not properly close the file

2018-03-20 16:16 GMT+01:00 rbfmp...@t-online.de : > I do a screencast with ffmpeg. The call looks like > ffmpeg -f x11grab -video_size 800x600 -framerate 25 -i :2 -c:v libx264 > -pix_fmt yuv420p -preset ultrafast test.mp4 > > The screencast is stopped by a SIGTERM (15) signal to the > ffmpeg proce

Re: [FFmpeg-user] probleme lors de la compilation de ffmpeg

Le 7 mars 2018 à 12:35, CHRISTOPHE CBRO a écrit : > bonjour, pour l'école de musique de jeune enfants, nous essayons de > fabriquer un mur de led pour les concerts. > lors de la compilation de FFMPEG, nous avons des erreurs bloquantes. > nous avons un raspberry Pi 3 mis a jour sous Rasbian. > > v

Re: [FFmpeg-user] FFmpeg dumps audio raw data of more size than expected

2018-01-29 14:16 GMT+01:00 m.kamalasubha m.kamalasubha < m.kamalasu...@gmail.com>: > Hello all, > I need to generate audio raw buffer for some 30 seconds from a clip whose > sample rate is 44100 Hz. I used the following FFmpeg command to dump the > raw data. > ffmpeg -i -ss 00:00:00 -t 00:00:3

Re: [FFmpeg-user] Random repetitions in output

2017-11-05 21:14 GMT+01:00 Mikael Persson : > I cannot believe that there is no way to tell ffmpeg to extract all frames > without repetition or dropping, shouldnt that be the default, and the > behaviour I see a bug? > ​There's no way to tell without knowing what happen, and there's no way to k

Re: [FFmpeg-user] Concat movies with different timebase

2017-11-01 8:34 GMT+01:00 T4ng10r : > > I'm using this script to convert movies (insert timestamp) -> > https://gist.github.com/T4ng10r/4f57212465a32172e4a4bb7a654fcd0e ​You should post here a single call to ffmpeg with all arguments, and the complete output it gives​ (for a problematic case). T

Re: [FFmpeg-user] Why is concat so slow on a powerful machine?

2017-10-18 3:17 GMT+02:00 Kevin Duffey : > Yup. I do not specify the output. I just use the same .mov file extension > as the two source files. Is it possible even though I specify -c copy > out.mov it is rendering and not Concat?? > > > ​You really should provide a minimal command line reproducin

Re: [FFmpeg-user] Dolby E decoder

> > > > >> ffmpeg -i input.wav -c:a copy -f u8 out.u8 > > > > ffmpeg -i - -c:a copy -f u24le - | \ > > > > The Dolby-E is 24bit, not 8. > > > > Doesn't matter, your example will not work, try it. > > Why doesn't it matter? > > ​When you copy a stream as-is, copying each byte individually or gro

Re: [FFmpeg-user] mp4 files size problem

2017-09-07 15:57 GMT+02:00 Daniel <5960...@gmail.com>: > Hello Everyone, > > I have tried to convert some videos to mp4 format what has surprised me > was the size of the videos, After the conversion some videos were 2,3,4 > times bigger then the original wmv files. Here is the command i used to >

Re: [FFmpeg-user] Can ffpmeg output to stdout?

2017-09-03 17:16 GMT+02:00 Mike Brown : > ffmpeg version N-52837-g399f6ef Copyright (c) 2000-2013 the FFmpeg > developers > built on May 7 2013 01:09:00 with gcc 4.7.3 (GCC) > ​That's very, very old. But probably irrelevant to the problem at hand.​ > Output #0, wav, to 'pipe:': > Metadata

Re: [FFmpeg-user] flac format

> > If you convert the WAV to an other format you will have an approximation > of the original data with the limitations of the codec of choice. FLAC > claims to be lossless and offering about 50% storage savings. > > Storage is inexpensive why change the format and lose the original? For the rec

Re: [FFmpeg-user] flac format

> > Thanks. Also the viceversa is as much simpler? ​For audio conversion with no change to layouts etc. it is usually that simple (but don't trust this blindly; I'm sure one can find subtle issues if one look hard enough)​ > And, please, what about wma > ​ ​ > format? Is it also lossless?

Re: [FFmpeg-user] flac format

2017-09-01 10:55 GMT+02:00 Rodolfo Medina : > Hi to all ffmpeg users. > > In order to backup store my audio CDs, I collect them into wav files using > icedax, because I read that wav format is lossless. Now, I've just read > that > also flac format would be, with the advantage of occupying much l

Re: [FFmpeg-user] Wav to Flac conversion: Invalid data found when processing input

2017-08-20 10:56 GMT+02:00 Raman : > input.wav > ​No idea if this is related, but this file isn't a .wav (or PCM) file.​ ffprobe and ffplay detect it as an mkv containing opus audio, and since it is properly decoded, I assume it is. It's a

Re: [FFmpeg-user] Quick (I hope) CLI question

2017-07-24 22:24 GMT+02:00 Eric Downing : > Hi! > > I have a folder of mixed format video files. I would like to: > > • copy video format > • apply "ffmpeg-normalize" to the audio track(s), whilst preserving > encoding > • batch process so I can run the same command on the root folder > > For exam

Re: [FFmpeg-user] man ffmpeg absent

2017-07-18 16:26 GMT+02:00 Reindl Harald : > > > Am 18.07.2017 um 16:17 schrieb Phil Rhodes: > >> Most of the people you are talking to are at least amateur software >> engineers >> > > what's wrong with you? ​I don't think it was meant as an insult (like amateurish), but more like "enthusiast".

Re: [FFmpeg-user] man ffmpeg absent

2017-07-17 23:32 GMT+02:00 ILJA SHEBALIN : > What advantage does the bundle have over bare bone binary executables > (UNIX execs in this case)? Do they enhance my experience supplementing > basic features with extra ones? ​For starter, using a decent package manager provides a mean to install ma

Re: [FFmpeg-user] scaling up without losing definition

Le 18 juil. 2017 05:06, "JD" a écrit : Can ffmpeg do that? Like from say 854x356 and transcode it to 1920x1080 without losing high definition (i.e. no blurring as a result of transcoding to a larger display). Ffmpeg can do scaling using various algorithm, including the "simple" nearest neighbor

Re: [FFmpeg-user] Issue when encoding a MP4 video

2017-07-12 16:21 GMT+02:00 Léonce ANDRIANJAFY : > Here is the complete output of the command: > > ffmpeg version 0.8.20-6:0.8.20-0+deb7u1, Copyright (c) 2000-2014 the Libav > developers > built on Jan 19 2017 11:13:36 with gcc 4.7.2 > The ffmpeg program is only provided for script compatibility

Re: [FFmpeg-user] Issue when encoding a MP4 video

2017-07-12 14:39 GMT+02:00 Léonce ANDRIANJAFY : > Hello, > I try to convert a MP4 video with a libspeex audio codec to an another one > but with an aac audio codec. In other words, I would like to only get the > audio stream re-encoded > > I launch the command below: > *ffmpeg -i 1281904405.mp4 -v

Re: [FFmpeg-user] about merging more than 1 videos

2017-07-06 10:27 GMT+02:00 akash kulkarni : > Hello there, > i am using the ffmpeg -copy command and merging multiple files from text > file > without re-encoding but its giving me jerk at the joint point of two files. > How could i vanish that jerk. ​This depends on your source material (codec,

Re: [FFmpeg-user] Create hvc1 mp4 with ffmpeg only

2017-07-03 5:43 GMT+02:00 桃源老師 : > I also know that ffmpeg can produce hvc1 mov with the following command: > ffmpeg -i hev1.mp4 -c: copy -tag:v hvc1 hvc1.mov > > Above information (hvc1 with mov) was found by Googling: > https://ffmpeg.org/pipermail/ffmpeg-devel/2017-June/212538.html > > But if i

Re: [FFmpeg-user] Using FFMPEG to encode multiple outputs in 'parallel' (doesn't work?)

2017-06-28 22:56 GMT+02:00 shalin : > Piping only shows that I am trying to run all three ffmpeg transcode > instances in parallel using single command line. If it makes any clearer, > you can read them as three separate commands issued at the same time. With > that, I hope we can focus on the con

Re: [FFmpeg-user] config log during ios for setup ijkmediaplay library

2017-06-19 14:47 GMT+02:00 Alpesh Prajapati : > PFA config.log file. > > Please help me out. > ​Please ask a question first. Also, have a look at this: https://trac.ffmpeg.org/wiki/MailingListEtiquette ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.or

Re: [FFmpeg-user] id3 tags not really removed?

2017-05-31 12:37 GMT+02:00 Rodolfo Medina : > Further tests show that changes in tags are actually detected by the > reader but > with a delay: in a first moment they are not, then I `play' again with tags > using ffmpeg and then the reader finally reads them... > ​A shot in the dark here since I

Re: [FFmpeg-user] Images to video under Windows

2017-05-22 17:50 GMT+02:00 Bouke / VideoToolShed : > Piping is a bad idea, it craps out after some 40 images in my experience. > (Pipe to pipe to pipe to….) ​Then you have a problem in the way you do your pipe. At least on linux-like systems, cat *.png will only pipe from the cat process to ffmp

Re: [FFmpeg-user] ffmpeg: gif to video conversion does not keep gif time delay between frames.

2017-05-07 18:16 GMT+02:00 Email Me : > ffmpeg -f gif -i test.gif -f mp4 out2.mp4 ​It's hard to tell without seeing the full output from ffmpeg, but there's a distinct possibility you need to specify a framerate for the output using -r. ___ ffmpeg-user

Re: [FFmpeg-user] embedded text subtitles

2017-05-01 18:36 GMT+02:00 Gonzalo Garramuño : > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'AnimSchool Animation Student > Showcase 2015-OMYtIlwH3DY.mov': >Metadata: > major_brand : qt > minor_version : 512 > compatible_brands: qt > encoder : Lavf56.40.101 >

Re: [FFmpeg-user] Memory usage growing when using ffmpeg. Is this expected?

2017-04-28 16:52 GMT+02:00 Guilherme de Oliveira Costa < guilherme.olive...@autotrac.com.br>: > I am using ffmpeg record a video from a webcam, but the memory usage is > very high, and keeps increasing with video length. > > For example, I use an embedded device with 64 MB of RAM, and when I > rec

Re: [FFmpeg-user] Extract xvid stream in mov container

2017-04-28 8:18 GMT+02:00 jacques perconte : > [mpeg4 @ 0x7ffc82817800] header damaged > [mpeg4 @ 0x7ffc82817800] time_increment_bits 4 is invalid in relation > to the current bitstream, this is likely caused by a missing VOL > header > [mpeg4 @ 0x7ffc82817800] time_increment_bits set to 5 bits, b

Re: [FFmpeg-user] Extract xvid stream in mov container

2017-04-25 9:52 GMT+02:00 jacques perconte : > > ffmpeg -i input.mov -c:v copy -an output.avi > ffmpeg -loglevel debug -analyzeduration 6M -i nput.mov -c copy -s > 1920x1080 output.avi > > it always print > "[avi @ 0x7fe9e303ce00] Dimensions not set > Could not write header for output file #0 (in

Re: [FFmpeg-user] Warning "Starting new cluster due to timestamp" on muxing two input streams and resulting movie with muted audio at some locations

2017-04-24 11:22 GMT+02:00 Georgi D. Sotirov : > What is the general reason for warning "Starting new cluster due to > timestamp" to appear anyway? ​I'm not sure of the exact cause of this warning by ffmpeg, but if the actual message is to be trusted (usually it is), it could be an inconsistency

Re: [FFmpeg-user] Warning "Starting new cluster due to timestamp" on muxing two input streams and resulting movie with muted audio at some locations

and output from ffmpeg?​ -- Cley Faye http://cleyfaye.net ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Problem with ffmpeg-3.2.4

2017-04-13 11:18 GMT+02:00 Pierre Delmas < pierre.del...@centrale-marseille.fr>: > > How to replace avcodec_decode_video2 in the version ffmpeg-3.2.4 ? ​Two things. First, this is not the right list for this kind of questions; https://lists.ffmpeg.org/mailman/listinfo/libav-user/ is probably a

Re: [FFmpeg-user] concatenate .h264 through a file

2017-04-11 12:07 GMT+02:00 bbo2 : > Guys I am a noob apologies if this has been asked.. > > I have over 900 files to concatenate and am using following command: > > ffmpeg -f concat -i files.txt -vf scale=1080:-1 -vcodec mpeg4 -b:v 1000k > output.mp4 > > I Created a txt list(files.txt) with names

Re: [FFmpeg-user] Converting and encoding in same step without pipes

2017-04-06 5:31 GMT+02:00 Aarthi Priya Thirumalai < aar...@multicorewareinc.com>: > I want to convert my input from Prores 4K10 bit 4:2:2 to 4K10bit 4:2:0 and > directly encode through libx265/libx264 in ffmpeg in a single step instead > of doing the conversion and storing in a intermediary file a

Re: [FFmpeg-user] Cross compiling ffmpeg lib with openh264

2017-04-06 13:21 GMT+02:00 Shivam Raj : > I am trying to compile with Cyclone-V SOC with Yocto toolchain for ARM > cortexA9. I am receiving the following error : > ERROR: openh264 not found using pkg-config > > ./configure --enable-cross-compile --cross-prefix=arm-poky-linux- > gnueabi- > --arch

Re: [FFmpeg-user] Shrinking video files

2017-04-04 15:25 GMT+02:00 Cecil Westerhof : > > Yes, that is what I did. People can of-course download the videos, but > it would really be nice when they just could view them immediately in > the web-browser. H.264 is significantly bigger as H.265, but I think > the user experience is more impor

Re: [FFmpeg-user] Starting to copy takes long

2017-03-29 1:54 GMT+02:00 Cecil Westerhof : > I want to copy a little bit of a video. I do this with: > ffmpeg -i input.mov -ss 16:28 -t 5 output.mov > > But it takes about 2:20 before the copying starts. Is this normal? > ​Try moving the -ss part before your input. -ss before an input use fo

Re: [FFmpeg-user] ffserver support

2017-03-26 18:21 GMT+02:00 Mickael MONSIEUR : > It's a dammage to see ffserver abandoned. I hope your message will wake up > some passionate :) > ​To my knowledge, last time the issue was raised, it wasn't abandonned: https://ffmpeg.org/pipermail/ffmpeg-user/2017-February/035158.html ___

Re: [FFmpeg-user] Convert iPhone MOV to Android MP4

2017-03-10 7:14 GMT+01:00 Richard Duran : > I will have to try that. I was about to revert back to my original > question, wondering why going from AAC input to AAC output didn't retain > the input bitrate. > ​(all of the following is what I think, knowing how I use ffmpeg)​ B ​ecause​ it doesn'

Re: [FFmpeg-user] Convert iPhone MOV to Android MP4

2017-03-08 23:06 GMT+01:00 Richard Duran : > > Example #2, input with pcm_s16le, input bitrate of 705 kb/s. Output bitrate > defaults to 69 kb/s. I would have expected the output bitrate to match that > of the input. Does AAC support that high of a bitrate? What are you trying ​to do and to what

Re: [FFmpeg-user] Convert iPhone MOV to Android MP4

2017-03-08 17:56 GMT+01:00 Richard Duran : > From what I can tell of the following output, the input audio bitrate is 85 > kb/s, and the output is 69 kb/s. > > I would like to know if it's possible to retain the source audio bitrate. I > am doing this via a batch file that loops through iPhone vid

Re: [FFmpeg-user] -movflags faststart revisited

2017-02-26 23:32 GMT+01:00 JD : > Are there any flags that will let me playback an unfinished transcode? > Reason I am asking is that if my various options in the transcode command > did not yield what I like, then I would like to abort the transcode. > ​mp4 files will never be playable without "

Re: [FFmpeg-user] -c:v or -vcodec copy or -codec:v

2017-02-22 8:39 GMT+01:00 Tim Hiles : > What is the deal with all the different ways to copy? Do they all do the > same thing? Cause if not, it is NOT clear what they are and if soseems > like a lot of redundancy. > I ​'m not​ sure from what they come from, but they achieve the same thing. F

Re: [FFmpeg-user] ffmpeg concat issue

2017-02-17 23:49 GMT+01:00 Mark Hatch : > > Any thoughts? ​Hi,​ ​You should​ probably send to the list the command *with* the complete console output when it fails, in addition to what you expect to happen. ___ ffmpeg-user mailing list ffmpeg-user@ffm

Re: [FFmpeg-user] Extract all audio regardless of stream/channel count

2017-02-10 12:40 GMT+01:00 Carles Vila : > If you could give me a starting point, I could probably figure out. ​This comes with no guarantee, no documentation and very minimal testing, but since you asked about a starting point... I put up a small python script that take a file with many stream

Re: [FFmpeg-user] Suggestions for FFmpeg: support a simpler command line for concatenating audio files with a specified overlap

2017-01-29 18:30 GMT+01:00 a : > Hello, after hunting around ffmepg.org, I could not find where to post > suggestions for FFmpeg developers, so if this mailing list is the > appropriate place here you go otherwise please let me know: > > > 1. I have a need to concatenate programmatically severa

Re: [FFmpeg-user] Why are absolute paths for concat unsafe?

2017-01-20 14:45 GMT+01:00 Shriramana Sharma : > But still I am not sure why exactly absolute paths are considered > unsafe. I would like an explanation for this. Thank you! > ​If I remember correctly, some people used ffmpeg in tools that allowed user input to be part of the concat file list, al

Re: [FFmpeg-user] Concatenate two mp4 videos - result is not playable

2017-01-19 15:04 GMT+01:00 Maxime Daymard : > Command (obviously the concat.txt file must contains the paths to the two > input videos) : > ffmpeg -f concat -safe 0 -i concat.txt -c copy -y result.mp4 > > Both videos can be found on dropbox here (~50M): > https://www.dropbox.com/sh/v99mngn7pfhrfvx

Re: [FFmpeg-user] Troube with piping into ffmpeg and fast seeking

2017-01-07 23:44 GMT+01:00 expenses : > For example:When I run the above > command > ​I believe you forgot a critical part in your message :) You should post the full command, and full output produced. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.or

Re: [FFmpeg-user] Why is length and bitrate zero?

2016-12-18 21:57 GMT+01:00 Michael Heuberger < michael.heuber...@binarykitchen.com>: > ffmpeg -f image2 -thread_queue_size 2048 -framerate 18.9 -i > /home/michael-heuberger/binarykitchen/code/videomail.io/var/ > local/tmp/clients/videomail.io/11e6-c1e3-fc2ad020-ae4a- > 290f0f20d08f/frames/%d.webp

Re: [FFmpeg-user] FFMPEG 3.2.2 - "could not find codec parameters"

2016-12-18 12:59 GMT+01:00 Caio Cesar Moreira : > I'm trying to dump video frames from a TS file but for some reason ffmpeg > is failing. > > Command used: ffmpeg -i playlist.m3u8 -vcodec -r 1 "output_%04d.png" > -loglevel 99 > > > Reading option '-vcodec' ... matched as option 'vcodec' (force vi

Re: [FFmpeg-user] how to convert one mp4 file into multiple files with different setting

2016-12-17 8:41 GMT+01:00 qw : > I want to use ffmpeg to do the following complicated task: > > > I have one mp4 file with one audio and one video stream. I want to convert > the mp4 file into three encoding settings, and then save each output with > one encoding setting into 3 files. > > > How to

Re: [FFmpeg-user] how to concatenate several flv files into one flv file

2016-11-17 14:21 GMT+01:00 qw : > >All methods and each of their restrictions are listed here: > >https://trac.ffmpeg.org/wiki/Concatenate > > > I use the following command, which doesn't work since vlc can play the 1st > file but not 2nd file in the resulting flv file. > > > ffmpeg -i "concat:fil

Re: [FFmpeg-user] ffplay on current build does not play mkv file but on old build does.

2016-11-10 20:12 GMT+01:00 Tim Hiles : > I attached the file in a previous email but ffmpeg list rejected the email > because it was 750 KB, so I'm sharing a google drive link to the file, > otherwise I'm not really sure what else to do. > https://drive.google.com/open?id=0B8g9J5RbDqElbU5RUDRoeVBm

Re: [FFmpeg-user] Is Zeranoe server down?

2016-11-08 2:47 GMT+01:00 Tim Hiles : > I'm getting: > > Forbidden > ​Seems fine now. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmp

Re: [FFmpeg-user] building vidstab toolchain for android

2016-11-07 11:11 GMT+01:00 Angelo Nodari : > can you help me it's more than 2 weeks that I'm trying to build ffmpeg for > android and it's a mess! > > ​/home/angelo/android-21-toolchain-x86/bin/i686-linux-android-gcc > --sysroot=/home/angelo/android-21-toolchain-x86/sysroot -isysroot > /home/ange

Re: [FFmpeg-user] Using ffmpeg to blur moving objects

2016-10-31 15:23 GMT+01:00 Boris T : > Yes, I already have the moving objects' coordinates (x, y values, the box's > width and height, as well as the duration of the blur). I only need to use > ffmpeg to blur that object in the video according to the provided > coordinates. I have a working soluti

Re: [FFmpeg-user] How to output the MPEG-4 streaming to file?

> When I use command "ffmpeg -i udp://@{IpAddr}:{Port} -c:v copy -c:a copy -f > mpegts stream_dump.ts", i got the following results. > - H.264...OK. > - MPEG-2...OK. > - MPEG-4...NG. "Invalid data found when processing input" will occur. What is required to better understand the issue is the

Re: [FFmpeg-user] issue with concat and seek

2016-10-19 17:51 GMT+02:00 Moritz Barsnick : > No, ffmpeg should actually cut with "-ss". ​Hmm, I'm not sure. This wiki page (https://trac.ffmpeg.org/wiki/Seeking ) says: > Using -ss as input option together with -c:v copy might not be accurate since ffmpeg is forced to only use/split on i-frame

Re: [FFmpeg-user] Developer "cehoyos" closed my bug without any explanation, and without solving it

2016-10-13 10:32 GMT+02:00 Reindl Harald : > baseline won't solve the problems. It doesn't force low timebase and it >> doesn't force yuv420p colorspace, it doesn't force FPS 30 limit, so things >> won't work >> > > *you* are the one operating ffmpeg and so it's under your control, > practically e

Re: [FFmpeg-user] Configure does not find any dependencies anymore

2016-10-10 19:57 GMT+02:00 Nomis101 🐝 : > OK. Please find attached the config.log. The output of "pkg-config > --list-all" is: > > $ pkg-config --list-all > -bash: pkg-config: command not found > ​Also in the config.log: > WARNING: pkg-config not found, library detection may fail.​ ​Others migh

Re: [FFmpeg-user] Configure does not find any dependencies anymore

2016-10-09 22:37 GMT+02:00 Nomis101 🐝 : > //ERROR: gnutls not found using pkg-config// > // > //If you think configure made a mistake, make sure you are using the > latest// > //version from Git. If the latest version fails, report the problem to > the// > //ffmpeg-user@ffmpeg.org mailing list or

Re: [FFmpeg-user] encoding video from png diffs

2016-09-01 19:31 GMT+02:00 Joshua Grauman : > I could of course generate all the pngs, but it would take up a lot of > space and I'm wondering if anyone knows of any creative way to do this? > Thanks! ​You could just do that. There is no need to write them anywhere though; you can pipe png seque

Re: [FFmpeg-user] What is Segmentation fault: 11 ?

2016-08-22 23:56 GMT+02:00 Nomis101 🐝 : > There you are: http://polysom.verilite.de/tmp/Test.mp4.zip > ​For what it's worth, the issue is not present with the static 64-bit build from zeranoe (not master but close). There are some messages that might be related to this issue though: [mp4 @ 00

Re: [FFmpeg-user] (no subject)

2016-07-24 17:45 GMT+02:00 Walid Salman : > > [root@ns1 ~] > ​​ > # ffmpeg -i /home/lamas44747/public_html/sarmaye.mp4 -ss > 00:00:10 -to 00:00:20 -c copy /home/lamas44747/public_html/split.mp4 > > the server show this error : > > FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers

Re: [FFmpeg-user] Need help resolving concat error

2016-07-23 21:39 GMT+02:00 Mark Strecker : > *ffmpeg -i files.txt -c:v copy -c:a copy OUT.MOV* > > *ffmpeg version 3.1.1 Copyright (c) 2000-2016 the FFmpeg developers* > > *Input #0, tty, from 'files.txt':* > > * Duration: 00:00:00.04, bitrate: 29 kb/s* > > *Stream #0:0: Video: ansi, pal8,

Re: [FFmpeg-user] Ffmpeg Concat Images failure

2016-07-09 14:39 GMT+02:00 Vivek Jain : > Below is the output. I see the below 2 files which errors out are PNG > whereas others are JPEG. I guess that's an issue? > ​I'm still learning about ffmpeg, but what I know is that concat expect all the files to have roughly the same layout and codecs. A

Re: [FFmpeg-user] Ffmpeg Concat Images failure

2016-07-09 6:43 GMT+02:00 Vivek Jain : > Please let me know if entire output or actual images are needed.. Much > thanks... > ​Entire output is always a good idea. Also, I'm not sure, but I don't think 'duration' is used that way in a concat file. Complete output might confirm this. _

Re: [FFmpeg-user] Duration Issues

2016-06-30 17:15 GMT+02:00 Celso Junior : > ffmpeg -i origin.mxf -ss 00:00:00.000 -t 00:00:01.000 -c copy -map 0 -y > chunk.mxf > > > I tried setting the fps by hand, using -to instead of -t but nothing > changes... > > Does someone has some idea about it? What am I doing wrong? > ​I'm not sure

Re: [FFmpeg-user] Problem with using pipe:1 when creating webm audio

2016-06-27 19:11 GMT+02:00 Mike Speciner : > I'm attempting to create a webm audio on the fly within my website, with a > command like > > ffmpeg -i one2twenty.wav -aq 6 -dash 1 -f webm pipe:1 > foo.d1p > > although the piped output is actually being sent out over the web; I just > redirected it t

Re: [FFmpeg-user] Issue with slicing QT videos

2016-06-23 15:39 GMT+02:00 Chandru : > |ffmpeg.exe -i "input.mp4" ss startTime -c copy -to stopTime -y > "output.mp4" | > > Program trace with errors attached. > ​I believe it's better to post the text log and not a screenshot. Anyway, you have a clear error message: > [mp4] Could not find tag f

Re: [FFmpeg-user] Why the fps of concatenate video file change with old video file?

2016-06-23 11:12 GMT+02:00 cuizhe : > >ffmpeg -r 25 -f concat -i 1.txt -c copy output.wmv > > 1.txt: > file g:\1.wmv > file g:\2.wmv > > It works. But the fps of output.wmv is 30. > How can I maintain the fps of concatenate video file? > You should post the full log, it most likely contains the a

Re: [FFmpeg-user] Could not write header for output file #0 (incorrect codec parameters ?):

2016-06-22 19:45 GMT+02:00 juan carlos Rebate : > the problem is in ffmpeg not know what else wants me to say, I have > indicated the error, as I indicated all screen output with the error, have > not received any solution, if you want something specific let me know > ​I, and other, pointed out t

Re: [FFmpeg-user] Could not write header for output file #0 (incorrect codec parameters ?):

2016-06-22 18:36 GMT+02:00 juan carlos Rebate : > ¿I can send photos or capture video ?, so'll see that does not work Since you've been very uncooperative to *any* kind of help and always filled every replies with attacks toward ffmpeg, and since this command line have something like four argume

Re: [FFmpeg-user] Could not write header for output file #0 (incorrect codec parameters ?):

2016-06-22 17:51 GMT+02:00 juan carlos Rebate : ​​ > The same command line you provided, with matroska replacing mp4 works fine > ​ ​ > for a standard input file:​ > >ffmpeg -i lp_e1m3_a.mkv -f matroska -c:v mpeg4 -listen 1 > ​ ​ > http://0.0.0.0:80 > > > with this command vlc can not see the

Re: [FFmpeg-user] Could not write header for output file #0 (incorrect codec parameters ?):

2016-06-22 0:05 GMT+02:00 juan carlos Rebate : > I've tried all combinations for codecs mpeg4 libx264 also webm libvpx > with the same negative results > The same command line you provided, with matroska replacing mp4 works fine for a standard input file:​ >ffmpeg -i lp_e1m3_a.mkv -f matroska -c:

Re: [FFmpeg-user] Could not write header for output file #0 (incorrect codec parameters ?):

2016-06-21 23:35 GMT+02:00 juan carlos Rebate : > Could not write header for output file #0 (incorrect codec parameters ?): > Invalid argument ​That's relatively clear to me. Have you tried *any* other combination of codec/containers? As far as I can tell, ffmpeg won't stream mp4 containers. Not

Re: [FFmpeg-user] Could not write header for output file #0 (incorrect codec parameters ?):

2016-06-21 21:06 GMT+02:00 juan carlos Rebate : > I keep looking but not quite find anything to help me solve the problem ​> ffmpeg -y -i rtp://239.0.0.107:8208 -map 0 -f mp4 -c:v mpeg4 -listen 1 http://localhost:80 -multiple_requests 1 -seekable 1 -bufsize 200k -r 299 -re

Re: [FFmpeg-user] What is the correct way to cut the video with ffmpeg?

2016-06-21 17:44 GMT+02:00 桃源老師 : > Still curious about cutting video on non key frame is correct or not... ​Depends on your definition of correct, but for my definition (which is, I need an output file that play fine in most players) I'd say "no". It varies between codecs of course, but "usuall

Re: [FFmpeg-user] Read mp4 video from pipe

2016-06-17 12:21 GMT+02:00 kolychev : > $ cat video.mp4 | ffmpeg -pix_fmt yuv420p -i pipe: -r 25 -f image2pipe > -vcodec mjpeg -q:v 1 pipe: > result > > ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers > built with gcc 5.3.0 (GCC) > configuration: --prefix=/usr --disable-debu

Re: [FFmpeg-user] Original display aspect ratio is not copied to output

2016-06-08 22:48 GMT+02:00 Dr. Johannes Zellner : > # avconv -threads 2 -i tv-recording.mkv -map 0 -c:v libx264 -preset > medium -tune film -crf 23 -c:a copy output.mkv > Out of curiosity, what is this "avconv" command? ___ ffmpeg-user mailing list ffmp

Re: [FFmpeg-user] How to re-encode 3d video to 2d video

​2016-06-07 23:43 GMT+02:00 jd1008 : > It really needs an installer that will put all those files into the > appropriate > >> directories, same as how installing an rpm does. > >> As it is, I cannot (will not) use it because I will have to put it into a > separate directory > to which my PATH env

Re: [FFmpeg-user] cannot allocate memory

2016-06-06 10:34 GMT+02:00 Madovsky : > ok the last git (today) seems to solved the problem > thanks > ​Oooh, good! Thanks from me too! I can go back to weird mix-n-match of filters using amix :)​ ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http

Re: [FFmpeg-user] How to re-encode 3d video to 2d video

Le 6 juin 2016 03:36, "jd1008" a écrit : > > Is this the way to convert a 3d vid to 2d? > > Moritz had replied to another question of how to play 3d vid on computers > not capable of playing 3d. So I used his -vf options as follows: > > ffmpeg -i the_3d_video.mp4 -r 29 -vf "crop=w=iw/2:h=ih:x=0:y

Re: [FFmpeg-user] ffmpeg upgrading

2016-06-03 17:05 GMT+02:00 Jase : > I’ve been trying unsuccessfully trying to upgrade to the current version. > I have followed any /all instructions I could find but to no avail and I > really need it updated so one of my sites will work properly . Please can > some one help. Version and codecs

Re: [FFmpeg-user] FFMPEG | Error converting video to a thumbnail

2016-05-28 18:34 GMT+02:00 C0nw0nk : > ffmpeg.exe -y -analyzeduration 2147483647 -probesize 2147483647 -itsoffset > -768 -i file.mp4 -vcodec mjpeg -vframes 1 -an -f rawvideo -s 178x100 > fileimage.jpg > ​I'm still learning how to use ffmpeg efficiently, but I think you provide way too much stuff

Re: [FFmpeg-user] How to grab the desktop in the webm format

2016-05-28 22:59 GMT+02:00 Alexandre Almeida : > Output #0, webm, to 'capture20.webm': > Metadata: >encoder : Lavf57.25.100 >Stream #0:0: Video: h264 (libx264), yuv444p, 1600x900, q=-1--1, 30 > fps, 1k tbn, 30 t > bc >Metadata: > encoder : Lavc57.24.102 libx264 >

Re: [FFmpeg-user] stream mapping seems to work, but doesn't

2016-05-24 18:17 GMT+02:00 sean darcy : > > Instead of trying to fix stream order, is there another easier way? ​It might not be the best option, but it should work: you could remux all your VOBs into ​correctly-arranged mp4 (or any other container that know better than VOB), then concatenate th

Re: [FFmpeg-user] drawtext 4:3 vs 16:9

2016-05-14 22:52 GMT+02:00 naser sonbaty : > I need help with filter_complex and drawtext. > drawtext on aspect 4:3 are correct but drawtext on aspect 16:9 are > stretched. > ​I've tried the drawtext filter with both 4/3 and 16/9, and in both case the text was the same (pixel perfect even). No st

Re: [FFmpeg-user] nvenc ffmpeg

2016-05-16 2:06 GMT+02:00 gofrane : > I use Nvidea GeForce GT 610 and I think I have the recent drivers > installed ( else which is the recent version ) > ​It doesn't matter which driver version you got; the hardware does NOT seem to support nvenc. If you want nvenc to work, you'll have to upda

Re: [FFmpeg-user] Prepend a single frame to a MP4 file

2016-05-15 22:36 GMT+02:00 Virgil Stokes : > I have created an image file (testImage.png) from which I would like to > make a 5 second MP4 file. Then > concatenate (prepend) this 5 second video to the test.mp4 file (as defined > above). How can this be done in ffmpeg? Note, I am using: > ​My appr

Re: [FFmpeg-user] FFMPEG run out of memory

2016-05-09 1:06 GMT+02:00 ionut : > > Is this enough ? I need to say that I have a very large ( huge ) command > that is being executed so a paste isn't good, and once I attaced to the > output specification the '-report' and the report already had over 100k > lines for 30s of output, while my tota

Re: [FFmpeg-user] FFMPEG run out of memory

2016-05-09 0:04 GMT+02:00 ionut : > My output is .mp4 and I am using like 50-100 images to create it. Image > resolutions are very big and I do a lot of complex filtering. I have some > cases that my cmd run out of memory and the ffmpeg process is killed. > One more thing, I have the next warning

Re: [FFmpeg-user] move from audio track to another

2016-05-05 23:43 GMT+02:00 juan carlos Rebate : > https://trac.ffmpeg.org/wiki/AudioChannelManipulation > > > here it is perfectly explained this in version 2.8 and earlier applies to > ffmpeg and ffmplay ​The link you provided explicitely say the same thing: -ac allows you to set the *number* o

Re: [FFmpeg-user] on frame changes in recode

2016-04-28 23:31 GMT+02:00 Xen : > > All of this is unnecessary, but if it makes you happy, here you have it ;P. ​I was curious about your issue, and I too was eagerly waiting for that log. Sadly it didn't come. ___ ffmpeg-user mailing list ffmpeg-user

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