Re: [FFmpeg-user] configure made a mistake
On Mon, 23 Feb 2015 11:13:59 +1100 Denis Pozharskiy den...@combitel.com.au wrote: Hi, I got the mistake described below when try to configure the latest version of ffmpeg on my MacBook Pro (Yosemite 10.10.2 (14C109)) ... yasm/nasm not found or too old. Use --disable-yasm for a crippled build. Did you install yasm? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Streaming to ustream/twitch from Raspberry Pi
On Thu, 19 Feb 2015 13:21:03 + Matt Conway conwa...@gmail.com wrote: pi@raspberrypi /usr/src/ffmpeg $ ffmpeg -i rtsp:// root:FishAxisFood12@192.168.0.4/axis-media/media.amp -an -r 30 -f flv rtmp://ustreamurl Are you intending to re-encode? Do you not want to stream copy instead? http://ffmpeg.org/ffmpeg.html#Stream-copy configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree --enable-nonfree is superfluous here since you did not enable any external libraries that do require it. Output #0, flv, to 'rtmp://ustreamurl: Metadata: title : Media Presentation encoder : Lavf56.22.100 Stream #0:0: Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 1k tbn, 30 tbc Do you really want to be using flv1 as the encoder? It's old and crappy. Also, I am not familiar with your device, but can it even handle encoding 1280x720 at your desired frame rate (with libx264)? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Prores 422 to H264, multithread leads to video glitch
On Fri, 6 Feb 2015 13:10:01 -0800 (PST) thibault75 thiba...@capitalvision.fr wrote: ffmpeg version 0.8.16-6:0.8.16-1, Copyright (c) 2000-2014 the Libav developers This is not ffmpeg from FFmpeg, but a so-called ffmpeg from Libav, a fork of FFmpeg. Also, note that libav was always used by FFmpeg as a shorthand name to refer to the FFmpeg libraries (libavcodec, libavformat, libavutil, libavdevice, libavfilter, etc). Yes, it's confusing, annoying, and unfortunate that they chose these names. You are expected to use stuff from FFmpeg on this mailing list, so you will either have to use ffmpeg from FFmpeg, or get help directly from that fork. See http://ffmpeg.org/download.html ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Looking to change QT audio files from 4 mono chanels to 4 discrete chanels
On Tue, 27 Jan 2015 15:46:46 + Esnault Jean-Manuel jean-manuel.esna...@francetv.fr wrote: Hello All, I'm looking for help. I have a set of QT files with 4 audio mono chanels (uncompressed 48kHz). I need to turn these files into 4 discrete audio chanels. This can be done manually into QT7 (but it's quite long to change each chanel of each file). I wonder if ffmpeg could do this, without recoding the video or the audio. Any help appreciated. Thanks in advance Please show some info about your input(s) and your ffmpeg build. The complete output of: ffmpeg -i input ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] I am confused between your FFMPEG and Sourcefordge FFMPEG
On Sun, Jan 25, 2015, at 06:20 PM, Dani A wrote: Guys, I am trying to install FFMPEG-php 0.6.0 on my server ffmpeg-php is a dead project and it is not part of FFmpeg; therefore we can't provide support for it. how can I install the FFMPEG on my server from your site If your distribution provides a recent ffmpeg package you can possibly use that, but often they are outdated and you did not mention what you're using so I can't provide more info. Or you could download a binary: https://ffmpeg.org/download.html Or compile: https://ffmpeg.org/download.html https://trac.ffmpeg.org/wiki/CompilationGuide so my developers can access the video file frames and display them on a page, that's why I need FFMPEG. Do you even need a wrapper library? See: https://trac.ffmpeg.org/wiki/Using%20FFmpeg%20from%20PHP%20scripts ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] remark text in video
On Sun, 25 Jan 2015 14:41:42 + Eng.Hany Ahmed micro...@hotmail.com wrote: helloi want make remark text or logo in the video when i transcoding any one have idea how i can do this please Sorry, but I don't understand what you mean by remark. Can you explain in more detail what you want to do? I'm guessing the overlay and drawtext filters would be useful for you: http://ffmpeg.org/ffmpeg-filters.html#overlay http://ffmpeg.org/ffmpeg-filters.html#drawtext ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] output jpeg quality
On Wed, Jan 14, 2015, at 11:05 PM, Green Koopa wrote: -q did set the jpeg compression level, making it consistent across frames. (It had no affect on the png compression level.) Thanks for the tips Lou. For PNG you can use -compression_level. Range is 0-100. Default is 100 (highest compression, IIRC). ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] output jpeg quality
On Sat, 10 Jan 2015 23:21:42 -0800 Green Koopa greenko...@gmail.com wrote: This creates one image for each second of video: ffmpeg -i 00020.MTS -vf fps=fps=1 -f image2 stills-%03d.png When I change the output format to jpeg, it does the same: ffmpeg -i 00020.MTS -vf fps=fps=1 -f image2 stills-%03d.jpeg But there is a problem. The quality of the jpegs begin okay, but quickly deteriorate. By the tenth image or so, they are unusable. This seems strange to me, but this is my first day with ffmpeg. Does it look better if you use -qscale:v (or -q:v)? It's a linear scale of 1-31. A doubling of the value will probably (very) roughly halve the bitrate. 2-5 are good values to try, but you can experiment. You don't need the -f image2. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] output jpeg quality
On Mon, 12 Jan 2015 09:08:20 -0900 Lou l...@lrcd.com wrote: It's a linear scale of 1-31. ...for most FFmpeg M(J)PEG* encoders. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Problem encoding raw data frames using libx264 on Mac OS
On Mon, 12 Jan 2015 08:53:29 -0800 (PST) inge inge.bech...@gmail.com wrote: Everything seems to be working fine, except the output is a video that only shows black, for the amount of time that has been encoded. I'm guessing you're playing it with QuickTime? Does anyone have an idea what the problem might be? From your console output: No pixel format specified, yuv444p for H.264 encoding chosen. Use -pix_fmt yuv420p for compatibility with outdated media players. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] audio extraction for no sound at end of video
On Sat, 10 Jan 2015 11:37:00 -0500
Cliff R Wong cliff.r.w...@gmail.com wrote:
Hi. I am extracting the audio from a video file to a wav format
ffmpeg -i {0} -ar 8000 -ac 1 -acodec pcm_s16le {1}.wav
where {0} is the input file and {1} is the output filename.
However, the last 3 minutes of the video has no sound and ffmpeg does not
convert that so the resulting audio file is 3 minutes shorter than the
video file. Is there an option that will keep those last 3 minutes of
silence in the audio file?
You forgot to include the complete ffmpeg console output from your
command.
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Re: [FFmpeg-user] Converting to h.265, keeping all audio streams
On Tue, 06 Jan 2015 22:44:11 +0100
c...@kruemel.org wrote:
Hi, I'm testing converting my h.264 movies to h.265 using ffmpeg (2.5.2
64-bit static):
Why?
ffmpeg -i ${TARGET} -c:a copy -c:v libx265 -preset slow -x265-params
crf=24 -strict experimental ${TARGET}.mp4
You should always include the complete console output too.
I had hoped that this would transcode the video stream, keeping all
audio streams. But only one audio stream is kept, the others are
deleted:
See http://ffmpeg.org/ffmpeg.html#Stream-selection
Then http://ffmpeg.org/ffmpeg.html#Advanced-options (particularly the
first example)
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Re: [FFmpeg-user] ffmpeg
On Thu, 18 Dec 2014 00:45:39 - FRED COLLEY tcb1k...@live.co.uk wrote: Hi Every time i try and open my VIDEO’S Windows explorer closes it again Did you use ffmpeg to create these videos? How is ffmpeg involved? now I have a message come up that it is the ffmpeg that is causing the problem and to contact you for advice What is the exact message? I’m running vista. I'm sorry. Also, please note that ffmpeg-user@ffmpeg.org is the official address for this mailing list, not ffmpeg-u...@mplayerhq.hu. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Accelerate/Decelerate video
On Tue, 16 Dec 2014 14:33:42 + david reid zathrasor...@gmail.com wrote: I have a video that I want parts to play in real time but the majority will be sped up to play as a time lapse at 25x. I can get the various pieces but would like to have a smoother interface between the 2 speeds, so is there a way of taking a 10 second piece of video and using it to speed up/slow down? slowmoVideo, which uses ffmpeg, is worth mentioning here. You can use a Bézier curve to set your speeds. http://slowmovideo.granjow.net/ ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Mixing two audio files to left/right channels, but using a (stream-copied) video from a third input
On Mon, 24 Nov 2014 17:04:24 +0100 Alfredo Di Napoli alfredo.dinap...@gmail.com wrote: Hello everyone, and sorry if the title is convoluted, I couldn't find a better one. What I'm trying to accomplish is simple, in practice: Assume I have three files: - Left_Audio.mp3 - Right_Audio.mp3 - Video.mov (Extensions are not important). What I would like to achieve is to come up with a CLI command which would give me a resulting video such that: - The left audio channel of the output will be mixed from Left_Audio.mp3 - The right audio channel of the output will be mixed from Right_Audio.mp3 - The video will be a stream copy of Video.mov Since there is no info (ffmpeg console output) about your inputs I'll assume your audio inputs are both stereo, and that you only want the video stream from Video.mov while ignoring any other stream types: ffmpeg -i Left_Audio.mp3 -i Right_Audio.mp3 -i Video.mov \ -filter_complex [0:a][1:a]amerge,pan=stereo|c0c0+c1|c1c2+c3[aout] \ -map 2:v -map [aout] -c:v copy -shortest output ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] brew install ffmpeg on 10.10 Yosemite for wma to mp3 batch conv.
On Wed, 19 Nov 2014 02:53:34 -0800 (PST)
paynito payn...@outlook.com wrote:
bash //
brew install ffmpeg // seems to work
cd folder with wmas
for f in *.wma; do ffmpeg -y -i $f -c:a libfdk_aac -b:a 192k
${f%.wma}.m4a; done;
// try a script
- error Unknown encoder 'libfdk_aac'
any ideas?
I do not believe brew includes libfdk_aac support by default. As far as
I know you have to use:
brew install ffmpeg --with-fdk-aac
Also see:
http://trac.ffmpeg.org/wiki/CompilationGuide/MacOSX#ffmpegthroughHomebrew
http://trac.ffmpeg.org/wiki/Encode/AAC
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Re: [FFmpeg-user] conversion from h.264 to mp3 adds 0.12 seconds of silence to beginning of file
On Tue, 4 Nov 2014 13:09:10 -0500 Reid Oda r...@princeton.edu wrote: Hi list, I'm doing audio/video analysis on videos downloaded from youtube. As part of the process, I need to extract the audio to a form that can be opened by my audio analysis software. I've been using mp3, but I recently discovered that ffmpeg adds 0.12 seconds to the beginning of the .mp3 file. This causes sync problems. Your ffmpeg command and the complete console output are missing. Does this also occur if you use lame? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] conversion from h.264 to mp3 adds 0.12 seconds of silence to beginning of file
On Tue, 4 Nov 2014 15:51:05 -0900 Lou l...@lrcd.com wrote: Your ffmpeg command and the complete console output are missing. Does this also occur if you use lame? I forgot to mention: 2. Why does LAME add silence to the beginning each song? http://lame.sourceforge.net/tech-FAQ.txt ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Can I use ffmpeg to combine audio streams in .ts file?
On Tue, 30 Sep 2014 18:35:53 +0200 skyscan...@gmx.ca wrote: On Tue, 30 Sep 2014 16:13:20 +0200, barsn...@gmx.net wrote: See my other response from a few minutes ago: Something like pan=5.1:FL=c0+c4:FR=c1+c5:BL=c4:BR=c5:FC=c7 or whatever you think is correct. You may have to throw in some factors such as 0.5*. :-) Following up on that, this seems to be the answer: ffmpeg -i original program.ts -c:v copy -filter_complex '[0:1][0:2][0:3][0:4]amerge=inputs=4,pan=5.1:FL=c0:FR=c1:FC=c2:BL=c4:BR=c5:LFE=c3' -c:a mp2 test.ts In pan: If the ‘=’ in a channel specification is replaced by ‘’, then the gains for that specification will be renormalized so that the total is 1, thus avoiding clipping noise. http://ffmpeg.org/ffmpeg-filters.html#pan Which is something you may or may not want, but I thought it was worth mentioning. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Shrinking videos to constant height
On Mon, Sep 8, 2014, at 12:04 PM, Harold Goranson wrote: I wish to recode them as modern mp4 to 300p high and as wide as required to maintain correct aspect ratio, rounded to the nearest 2p. No sound, but all other qualities the same. You can use the scale filter: -vf scale=300:-2 https://ffmpeg.org/ffmpeg-filters.html#scale ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Problem finding codec parameters in m4v file
On Wed, 3 Sep 2014 13:54:11 -0700 (PDT) ifightnoman ifightno...@gmail.com wrote: I have a large (1 GB) m4v file that ffmpeg is unable to decode. I am trying to generate a thumbnail from this file but hit the error message: [buffer @ 027fd600] Unable to parse option value -1 as pixel format Last message repeated 1 times [buffer @ 027fd600] Error setting option pix_fmt to value -1. [graph 0 input from stream 0:0 @ 027d4400] Error applying options to the filter. Please show the complete ffmpeg console output. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] When merging an image with audio the resulting mp4 has a black screen
On Tue, 2 Sep 2014 11:54:49 -0700 (PDT) gfmonk g...@gurudental.com wrote: I am using Qucktime to test but they need to play using jwplayer on a web page. Using the output width from your command: -vf scale=400:-2,format=yuv420p -movflags +faststart ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] sequence with alpha over a still renders alpha incorrectly
On Thu, Aug 28, 2014, at 08:17 PM, Ehren Addis wrote: I'm trying to put a png sequence with an embeded alpha over a still image with burned in timecode. The following has been had from everything I see on the web (with the exception of using -shortest that never worked). This renders, but the alpha channel renders in a strange banded sort of way. A smooth gradation comes out like lots of transparent stripes that move around. I'm starting to suspect this isn't the way the current ffmpeg would do it. Can anyone point me in the right direction for the proper syntax? ffmpeg -loop 1 -r 29.97 -i background.jpg -r 29.97 -i foregroundsequence%05d.png -filter_complex overlay, drawtext=fontfile=ARIAL.ttf: timecode='00\:00\:00\:00': r=29.97: x=(w-tw)/2: y=h-(1*1h): fontsize=32: fontcolor=white: box=1: boxcolor=0x0099 -r 29.97 -t %dur% -vcodec prores -profile:v 2 -y output.mov I had to use -t instead of -shortest to get this to not encode indefinitely, contrary to examples floating on the web. Thanks! Please include the complete ffmpeg console output. Providing one of the foregroundsequence*.png images could be helpful too. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Blur the Background with a Gradient
On Fri, 22 Aug 2014 17:42:01 +0800 Qianliang Zhang zhangqianli...@gmail.com wrote: Hi everyone, I try blur video with 'boxblur' filter, and I find it helpful. But I want to blur my video with a gradient, any advice? Make a gradient that is the same size as your input video: $ convert -size 640x480 gradient: gradient.png Then use ffmpeg (untested example): $ ffmpeg -i video.mkv -loop 1 -i gradient.png -filter_complex \ [0:v]boxblur[blur]; \ [blur][1:v]alphamerge[merged]; \ [0:v][merged]overlay[out] \ -map [out] output.mkv ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] How to drawtexton multi-lines using php?
On Fri, 8 Aug 2014 10:01:42 -0700 (PDT) hirokku oswaldo1...@gmail.com wrote: I need to show the text in two separate lines, how can i do this? You can use two drawtext filters: -vf drawtext,drawtext Of course you will have to provide the necessary options to get exactly what you want. Alternatively your could place the text in a file with the desired line breaks and use the textfile option in the drawtext filter. I recommend you get command working in cli then adapt it for your PHP script. For more info see: http://ffmpeg.org/ffmpeg-filters.html#drawtext-1 ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Issues with video and audio streams not starting at beginning of file when using filter_complex.
On Wed, 30 Jul 2014 07:17:40 -0700 (PDT) ac83 aclout...@c-spanarchives.org wrote: Hello, We're testing out some transcoding using filter_complex, but can't seem to produce video that both starts on an I-frame and starts at the same time as the audio. In the past we've just done -ss x -i ... -t y and things have worked, but with filter_complex we're consistently seeing the audio start before the video which causes our video streaming server to play them out of sync. I've tried a large variation of commands.. using trim and atrim w/ and w/out setpts etc.. ffmpeg -y -ss 21 -i /var/scratch/processRaw/f/20140729154103013_hd.trp/20140729154103013_hd.trp [trimmed] This is quite the command and filtergraph. Could you provide the most simple command and console output that still has the issue? Try to narrow down the culprit. How can we reproduce the issue? Does it occur only with specific inputs? What player are you using? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
