Ffmpeg is a suite of media encoders and decoders with support of multiple codecs and containers. It is typically used in library form by a graphical tool, although the command-line interface offers scriptability and portability. FFmpeg is based on the libavcodec and libavformat libraries. See also: ...
0
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1answer
15 views
Create a watermark in a separate track with FFmpeg
I have a PNG (alpha) file and a video file. I want to create a video in which the first track is the image and the second track is the video (PNG over video). The problem is that the PNG doesn't ...
4
votes
2answers
72 views
Best way to repackage ripped DVD to mpg
I have a bunch of DVDs that I've already ripped into a VIDEO_TS directory containing .IFO and .VOB files.
I have a cheap primitive video player that will accept .mpg files.
I've tried two different ...
2
votes
0answers
41 views
problems encoding 1080p60fps MTS files with ffmpeg to DNxHD proxy; plays too slow in NLE compositor window.
I was advised to encode my HD files with ffmpeg to DNxHD proxy with 220M bitrate rather then 45M so the image doesnt have too much artifacts. I reduced the framerate to 29.97 fps when I encoded the ...
1
vote
0answers
26 views
force vlc to use libav, and pass libav specific options
I have a stream, that I can successfully decode with ffmpeg, with this command line:
ffmpeg -f image2pipe -vcodec png -r 30 -i -
Now I want to to pipe it directly to vlc. I tried this one with ...
3
votes
1answer
70 views
multiple png images over a single pipe to ffmpeg (no file writes to disk!)
I have a program that generates a script for gnuplot, which in turn generates a lot of png images and send it to stdout. I want to pipe these images to ffmpeg without writing them to the disk. This is ...
2
votes
1answer
137 views
What bunch of ffmpeg scripts do I need to run “Video for everybody”?
What list of commands should I do in ffmpeg/mencoder/some_other_CLI_app to get a video in all the right formats to use Video for Everybody?
i.e. Is there a subtlety that prevents there being a ...
2
votes
1answer
71 views
Maintaining Aspect Ratio Using ffmpeg
Is there any way to tell ffmpeg to preserve the aspect ratio when resizing a video by adding padding in the shorter dimension? I know that I can do it by manually adding the proper amount of padding, ...
0
votes
0answers
65 views
No audio after conversion from AVI to SWF using ffmpeg
I was able to convert the video from AVI to SWF however the sound seems to have been stripped out. I am running the following command
ffmpeg -i 1.avi -b:a 3000k -vcodec flv -ab 128k -ar 44100 ...
0
votes
1answer
33 views
ffmpeg trimmed video does not support jumping to a time position
After a video is cut, the player (mplayer) cannot jump to a specific time position anymore. Clicking the timeline will usually end the playback. How can this be fixed?
0
votes
0answers
92 views
MP4 re-ecoding to guarantee concatenation without re-encoding
I have 2 mp4 videos that fail to concatenate when using:
MP4Box -add 1.mp4 -cat 2.mp4 out.mp4
Is there a way to re-encode 2.mp4 so that the concat call will create a valid output? Possibly with ...
5
votes
2answers
315 views
How to concatenate two flv files?
I want to concatenate two flv files(downloaded from Youtube.com) by linux command line tools.
The ffmpeg tutorial is too complicated, so I tried the mencode tutorial.
But I get a empty output. I don't ...
1
vote
1answer
55 views
ffmpeg shortening calculated video run time
I have an image sequence of 5,664 .tga images which are to be played at 24fps (so 236 seconds) and an audio ac3 file which I edited to be exactly 236 seconds (plus minus 0.01s) in length.
I used the ...
1
vote
0answers
112 views
compile ffmpeg to enable libmp3lame
I am using the following command in MinGW in windows to build my ffmpeg, I have already downloaded libmp3lame from here sourceforge.net compiled the build and compile and install the libmp3lame, now ...
0
votes
2answers
155 views
FFMPEG -VF gives me Unrecognized option VF
I'm trying to watermark a video using FFMPEG and -vf to overlay a PNG.. but it aint working
My command line :
$ffmpeg->exec('-i "' . $path_src . '" -vf "movie=watermark.png [wm]; [in][wm] ...
1
vote
1answer
290 views
Using desktop as fake webcam on linux
I want to make a live stream of (a window on) my linux desktop using a free streaming site, using the captured video as a fake webcam. There are many tools for this on windows. ffmpeg allows me to ...
0
votes
0answers
43 views
mp3 bug after ffmpeg converting
I'm converting wav (ima adpcm) to mp3 by ffmpeg
ffmpeg -i audio.wav -acodec libmp3lame audio.mp3
and play it in browser by html5.
But audio doesn't end at about 1-2 seconds from the end of file ...
1
vote
1answer
105 views
What does the video output stream details from ffmpeg mean?
When you run ffmpeg -i with the video file as input parameter, ffmpeg returns some details of the stream type, like codec, bitrate and resolution. What does the other data mean - "tbr", "tbn" and ...
1
vote
1answer
90 views
How to embed multiple audio files to one video file with timeline offset?
I have a video file:
screencast.mpg (100sec)
And several audio files(file name indicate offset):
10.wav (10sec)
30.wav (5sec)
45.wav (8sec)
How can I combine those files together:
...
0
votes
1answer
121 views
How to convert .flv to .m4v files through FFmpeg
I want to convert FLV files to M4V files. What is the exec (PHP) Linux code for this conversion?
0
votes
0answers
38 views
Use ffmpeg over tcp
I am trying to use ffmpeg to convert a video file and output to the network. Ideally I want something like this
'Server':
ffmpeg -i media.mp4 -s cif -f mp4 tcp://clientname:port
'Client':
ffplay ...
-2
votes
1answer
108 views
How To Check My Current Version of FFMPEG
I have FFMPEG installed on 2 different servers. On one of the servers, i run into an issue every time i try to convert m4v files where ffmpeg just processes the file indefinitely. When I take the ...
1
vote
1answer
54 views
error linking ffmpeg library
While linking libavcodec.a , I see these errors:
/usr/bin/ld: /usr/local/lib/libavcodec.a(fft_mmx.o): relocation R_X86_64_PC32 against symbol `ff_cos_32' can not be used when making a shared object; ...
2
votes
1answer
136 views
FFmpeg creates emtpy (black) frames
I have a set of images from a timelapse shot (172 JPG files) that I want to convert into a movie. I tried several parameters with FFmpeg, but all I get is a video with black frames (though it has the ...
0
votes
1answer
226 views
lossless PNG to video in Imagemagick
As an intermediate step in creating an animation, I need to put a bunch of sequential PNGs into a movie file. I tried ffmpeg but was getting compression and artifacting even when I set quality to ...
1
vote
0answers
143 views
ffmpeg works on terminal not with PHP exec
If I execute a ffmpeg command from terminal, I get the desired result:
ffmpeg -i src.mp4 -ar 22050 -ab 32 -f flv -s 320x240 video.flv
Terminal's output
...
video:3404kB audio:1038kB global ...
0
votes
1answer
102 views
how to make ffmpeg convert files and copy to other folder
I need to convert mp3s from 5 folders to the lower bitrate (192) ones without changing their names. How can I do it? (what command)
3
votes
1answer
318 views
ffmpeg to join videos
I previously learned that FFMpeg can join videos:
However, I am attempting to join recorded over-the-air broadcasts (.ts files), and I believe that minor hiccups in signal quality are causing FFMpeg ...
0
votes
0answers
80 views
Can't get ffmpeg to use frei0r on OSX (through homebrew)
I am trying to get ffmpeg to use frei0r plugin and although I was able to get frei0r show up in filters list, I get the error:
[frei0r @ 0x10331c1c0] Could not find module 'glow'
Error initializing ...
0
votes
1answer
87 views
Is it possible in ffmpeg to seek to position of the file that is received through stdin
Is it possible to -ss in ffmpeg to the file, that is being received via pipe? So that I start reading it from a given timecode?
I am not encoding the file.
Thanks
1
vote
1answer
207 views
FFmpeg produces empty file
I have problems with ffmpeg on OSX Lion. I am trying to convert the mpeg file and the output is always a file of size 400kb or so..
The command is:
ffmpeg -i out_poem_big.mpg -s 1280x720 -vpre ...
1
vote
2answers
551 views
Extracting “one of every 10 frames” in a video using VLC or FFmpeg
I am trying to extract "exactly 1 frame of every 10" frames of a video (i.e. extract 1 , leave 9 then repeat) for scientific purposes. The video is 105 frames, 3.5 seconds, 29.97fps (h.264, .mov, ...
0
votes
1answer
230 views
How can I automate converting AVIs to mp4 and stuff them in iTunes?
I know I can use Handbrake to do this all by hand, but I'd like to automate the process. I'm on a Mac, so as a first step, I've tried downloading ffmpeg for the Mac but it's a nightmare to get it ...
2
votes
1answer
206 views
Unable to cut out part of video with ffmpeg
What I want to do
I'm trying to cut a video for a science project under Ubuntu 11.10 with latest ffmpeg,
I also tried Kino and avidemux where the video failed to even open properly although it plays ...
2
votes
1answer
323 views
What parameters should I be looking at to reduce the size of a .MOV file?
My Canon 60D creates .MOV files when recording video and I've found out that the .MOV container has an H264 video stream and a PCM audio stream.
I've used ffmpeg and GSpot to look at some of my ...
1
vote
0answers
260 views
how to install ffmpeg in cpanel
i'm using dedicated server(linux) so i need to install ffmpeg in cpanel so here ffmpeg i found in Main >> Software >> Install a Perl Module but i writing script in php so how can i install ffmpeg ...
1
vote
1answer
400 views
x264 encoding speed, what should my expectations be?
I am running Ubuntu 10.10 (maverick) on an HP Pavillion dv3 with core2duo 2.29 GHz, NVidia Geforce G105M (512MB) with CUDA and 4GB RAM. I have the latest versions of ffmpeg and x264.
I recognise that ...
1
vote
2answers
127 views
Progressively Accelerate Video with ffmpeg
I'm currently trying to make a time lapse video. This can be done fine with iMovie, however, I'm having one simple issue. Is there any way to accelerate a video progressively with any open source ...
2
votes
1answer
422 views
Low-latency streaming using ffmpeg
Recently, I'm trying to stream a remote desktop using ffmpeg.
The goal is to being able to send what is shown on one of the computer's screen to another computer while being able to choose settings ...
0
votes
2answers
733 views
How do I install ffmpeg on Windows 7
I'm using Windows 7 and Zend server for my PHP.I have fed up completely searching and trying every methods of installation found on internet.
Luckily, I installed it well on my Ubuntu machine at my ...
2
votes
1answer
838 views
Use DivX settings to encode to mp4 with ffmpeg
I'm used to use VirtualDub to encode a video to AVI container with DivX-codec (and MP3 for audio). Now I'm planning to use ffmpeg to encode videos to MP4 container with h264-codec. What I've figured ...
0
votes
3answers
259 views
Using ffmpeg to generate 10 images from one video
Anyone knows a command to use ffmpeg in order to generate 10 images from one video file?
This command for example would generate a jpg image for every frame, but idealy I would like 10 images taken ...
1
vote
0answers
144 views
Convert interleaved video into separate left/right videos
I'm trying to make two files from video recorded on 3d camera and can't find how can I separate one video onto two.
ffprobe video.m2ts gives me
Input #0, mpegts, from 'video.m2ts': Duration: ...
1
vote
0answers
547 views
Dump/load metadata with FFmpeg (WMA to MP3)
I need to convert WMA metadata into MP3 ID3 tags. FFmpeg should be able to dump them into a file and load them back to another using implemented mappers. I cannot find syntax of usage though:
...
0
votes
3answers
401 views
Cut part from video file starting from startpos to endpos (ffmpeg)
I have a video file of 30 minutes, but I want to extract a video from 00:09:23 to 00:25:33. I can define the startposition with -ss, but I couldn't find one for the end position. Any help please?
1
vote
1answer
127 views
Lower mp4 file size
I have couple of (over 100) mp4 video files, which are approximately 15 MB each. I think they are unnecessarily high quality videos, I want to lower the sizes of each, by reducing the quality. I know ...
1
vote
1answer
427 views
Aspect ratio of video sliced with FFmpeg unintentionally changes
I am trying to extract a small part from a larger video without changing the codecs, resolution or something else. Therefore, I use FFmpeg with the following settings.
ffmpeg -vcodec copy -acodec ...
2
votes
1answer
192 views
Resources To Use FFMPEG Effectively
Lately i've posted a lot of questions about how to use ffmpeg. It's pretty clear to me that I am missing some sort background in video encoding and was wondering if any of my fellow superusers had ...
1
vote
1answer
455 views
FFMPEG converting from m4v to mp4 does not stop processing
I'm using ffmpeg to convert various types of video files into mp4s.
The command I use works for most video files I've encountered, however when it encounters an m4v it never stops processing the ...
1
vote
2answers
171 views
ffmpeg hangs while transcoding .dv to .mov
I'm transcoding a bunch of files from .dv format to .mov
I already transcoded a bunch of them, but now ffmpeg keeps hanging. It transcodes in one case up to 2 min 06 sec (out of 2 min 44 sec) and ...
0
votes
1answer
63 views
Undefined reference to _aacplusEncOpen
Following is the copy of my config.log file->
http://pastebin.com/embed_js.php?i=UyTBTTZv
Following is copy of configure file->
http://pastebin.com/embed_js.php?i=2c15zppN
Additionally: As of now ...
