`ffmpeg` is a free software project aimed at producing tools (libraries and programs) for handling multimedia data.

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4
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1answer
398 views

ffmpeg - Merge two audio sources with x11grab, possible?

Currently I'm running with the following setup. ffmpeg \ -i http://pub1.di.fm:80/di_vocaltrance \ -f x11grab -s 1920x1080 -r 25 -i :0.0 \ -c:v libx264 -preset fast -pix_fmt yuv420p -s 1280x800 \ ...
4
votes
1answer
4k views

How to splice sections of a video with avconv?

I have figured out so far that you can cut a section from a video with avconv with a command like this (cuts from 1:00-3:00): avconv -ss 00:01:00 -i "input.avi" -t 00:02:00 -c:v libx264 -crf 23 ...
2
votes
1answer
131 views

Trying to record a screencast using ffmpeg but my mouse pointer is invisible

I'm trying to record a screencast using ffmpeg but my mouse pointer is invisible. What am I doing wrong? This is the command: ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s 1024x768 -i :0.0 ...
2
votes
1answer
401 views

Can't install 32 bit gstreamer-ffmpeg normally, library can't find other 32 bit libs

I'm on Ubuntu 12.04 64 bits and I'm trying to get a game (GTA SA) working in wine, but it keeps crashing. After reading error logs it seems I needed some 32 bit versions of gstreamer, probably to play ...
1
vote
1answer
975 views

Ffmpeg problems on centOS 5.8 64 bit

I did install ffmpeg with winff, unsuccessfully when I try converting avi to x264, it says I don't have it. When I try to convert mp4 to Xvid I get unknown encoder 'libxvid'. It's like nothing really ...
0
votes
1answer
137 views

Error: File contains parsing errors: file://///etc/yum.repos.d/dag.repo

I read you have to be careful with repo files for security with third party ones added. Anyway I have simply been trying to install ffmpeg and I am stuck because yum doesn't like what it is reading ...
0
votes
1answer
53 views

No rule to make target `install'

I am following these instructions https://trac.ffmpeg.org/wiki/CentosCompilationGuide But when I try the code: cd ~/ffmpeg_sources curl -O ...
0
votes
1answer
159 views

prores 444 output using ffmpeg

instead of prores_ks ( as in image ) i need to get prores444. How is it possible.? I tried the following and felt that i am limited to this. Is prores_ks alternative to prores444 Can you explain how ...
0
votes
1answer
595 views

ZoneMinder compiling error: “missing binary operator before token ”(“”

When installing ZoneMinder 1.25.0 in CentOS 6.4 (64-bit) the following error pops up when executing make: zm_ffmpeg_camera.cpp:105:44: error: missing binary operator before token "(" Full log: ...
0
votes
1answer
449 views

Ffmpeg-php will not compile

FFMPEG: ffmpeg version N-54768-g8d9c1b3-syslint Copyright (c) 2000-2013 the FFmpeg developers built on Jul 16 2013 14:40:49 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3) configuration: ...
0
votes
1answer
1k views

Trying to compress avi file using ffmpeg

I used the command below to compress an avi file(using ubuntu) ffmpeg -i input.avi -vcodec msmpeg4v2 output.avi but I am getting these errors Incompatible sample format 's16' for codec 'ac3', ...
3
votes
0answers
28 views

How to tape a video running on the screen? (screen capture)

I am trying to capture video and audio from the screen, loudspeakers and microphone. I would like to do that with a command-line command. So far, ffmpeg -f x11grab -r 25 -s 800x600 -i :0.0 ...
3
votes
0answers
289 views

How can I prevent ffmpeg intermmittent faulure with `AVC: nal size` error?

I am trying to open the NASA HDTV video stream from ustream.tv directly in vlc. The problem that I have is that it only works sometimes. The command I am using is below: ffmpeg -i ...
3
votes
0answers
686 views

Generating a slideshow under linux

Under Windows, one is able to generate a nice slideshow (crossfading between images, applying the Ken Burns effect on each image) on Windows using (Windows) Movie Maker. When I create a slideshow ...
2
votes
0answers
61 views

Libav: Find out the exact time that the first frame coming from an RTSP stream was dumped into a file

I am dumping an RSTP stream from a web camera into a file using avconv: avconv -f rtsp -rtsp_transport tcp -i rtsp://user@password/ 192.168.1.4/stream.cgi -t 100 -c:v libx264 -s 1024x768 -an ...
2
votes
0answers
81 views

Desktop audio falls behind when recording microphone + desktop audio + screen using ffmpeg

I have put together this script for recording the microphone, the desktop audio and the screen using ffmpeg: DATE=`which date` RESO=2560x1440 FPS=30 PRESET=ultrafast DIRECTORY=$HOME/Video/ ...
2
votes
0answers
83 views

Is there any remote GUI for ffmpeg?

I'm looking for some software with both Linux and Windows versions that can remotely run FFMPEG commands on my Linux server. Just like what transmisson-remote-gui does for Transmission. In summary, I ...
2
votes
0answers
640 views

Determining media format/encoding for DLNA system

How do you determine what parameters are needed by a DLNA renderer and server? I have a Samsung TV that is a DLNA renderer. I also have a Western Digital NAS running Debian and have Twonky and ...
2
votes
0answers
655 views

No way to record a live stream to WebM using ffmpeg?

I'm streaming from an mp4 source and so far I've managed to save clips as ogg (video: libtheora, audio: flac), but I'd like to save them in the WebM format. Unfortunately, WebM demands libvorbis for ...
1
vote
0answers
14 views

how to install avxsynth on centos?

i am using centos 6 x86_64 and i am trying to install avxsynth for centos, but it always failed from link page i found that i have to install automake libtool MPlayer sudo apt-get install ...
1
vote
0answers
17 views

screen capturing fails when trying second time by using ffmpeg

I'm trying to capture screen by using ffmpeg. ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0+100,200 output.flv It worked at first, but after I end the first capture by Ctrl + C, ...
1
vote
0answers
43 views

ffmpeg hardcode subs on flv

Giving up on trying to use videosub.js, I am now trying to hard code subtitles to the video file using ffmpeg. Have run into trouble with configuration files not found, when trying to hard code the ...
1
vote
0answers
66 views

Is there a way to mix between two RTMP streams (depending on which is up) using something like FFMPEG?

(Apologies about the question title, not quite sure how to word it) So I'm working on a turnkey streaming solution / server for a local LAN party, using the fantastic nginx-rtmp to handle incoming ...
1
vote
0answers
122 views

Anyone gotten the switch '-segment_times' working with ffmpeg?

While searching through U&L I noticed a fair amount of questions asking how to script the generation of ffmpeg command lines like these: ffmpeg -i video.mp4 -ss 00:00:00 -t 00:10:00 -c copy ...
1
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0answers
283 views

FFmpeg-php installation error on CentOS 6 x64 bit

I'm trying to install ffmpeg and ffmpeg-php. FFMpeg installed perfectly. When I try to install ffmpeg-php, I'm running ./configure and it's configured fine. However, when I run make it gives me the ...
1
vote
0answers
288 views

Compiling PHP-FFMPEG Extension

cd ffmpeg-php* phpize ./configure --with-ffmpeg=/usr/local/cpffmpeg make Then I end up with the following issues on my make: ... ... ... /usr/src/ffmpeg-php-0.6.0/ffmpeg-php.c:86: warning: ...
1
vote
0answers
457 views

Rotating a video (ubuntu 12.04)

I have a video, shot on my android phone, which I want to rotate 90 degrees clockwise for computer viewing. Here's what I expect should work: ffmpeg -i infile.mp4 -vf "transpose=1" -an -vcodec mpeg4 ...
1
vote
0answers
121 views

unable to segment theora vorbis video file with ffmpeg

i am trying to split ogg video into 10 sec ogg video segments with ffmpeg segmenter. ffmpeg -i www/VideoPlayer/Videos/wr3libvorbis.ogg -map 0 -f segment -segment_time 10 -segment_list ...
1
vote
0answers
205 views

avconv/ffmpeg output through /dev/ttyAMA0

I tried to pipe streaming video from video4linux2 webcam connected to a Raspberry Pi through /dev/ttyAMA0 to a computer using an Arduino as a intermediary. First of all, is it possible? Because I was ...
1
vote
0answers
134 views

To which audio format can I convert aac lost-free with ffmpeg?

Since I did not manage to get the audio work with ffmpeg -i video.mp4 -acodec copy -vcodec copy out.avi I'm searching for an audio format to which I can convert aac lost-free. Does such an ...
1
vote
0answers
251 views

ffmpeg: error while running with libx264

Main code: ffmpeg -i 2269801.avi -threads 0 -vcodec libx264 -b 900k -acodec libfaac -ar 44100 -ab 96k -ac 2 earthgirlsareeasy1.mp4 [libx264 @ 0x16cdde10]broken ffmpeg default settings detected ...
0
votes
0answers
27 views

Grab from a webcam

On Linux it is easy to use an audio or video grabbing device as input to FFmpeg: ffmpeg -f oss -i /dev/dsp -f video4linux2 -i /dev/video0 out.flv Today someone in kirupa forums said they ...
0
votes
0answers
19 views

How can I use codecs etc. from one file to encode another with avconv?

I'm trying to use my camcorder as a portable TV, so I would like to use files from the camcorder (a Sony Handycam HDR-CX280) to encode my other video files in a format it will play. Here's the output ...
0
votes
0answers
13 views

avconv with negative audio quality value

Is it possible to set the -q:a parameter to a negative value? For example, the value of -1 is a valid quality level for the Vorbis codec.
0
votes
0answers
204 views

FFmpeg MUXING OVERHEAD after 900 seconds h264 & ACC (from Axis Camera) to flv rtmp

Audio and Video works for 900 seconds and then ,muxing Overhead!!! video:1889kB audio:1825kB global headers:0kB muxing overhead 2.162866% AXIS IP CAM -> ffmpeg -> nginx ffmpeg -v verbose -i ...
0
votes
0answers
365 views

ffmpeg: problems when copying the audio

When I run this ffmpeg -i video.mp4 -codec copy video.avi I get a broken audio: a crackling like a stuck LP. The input-audio is aac When I re-encode the audio like this ffmpeg -i video.mp4 -codec:v:0 ...