`ffmpeg` is a free software project aimed at producing tools (libraries and programs) for handling multimedia data.
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11 views
Cannot install ffmpeg on centos 6
I tried to install ffmpeg on centos 6, but I got some dependency error like this:
Error: Package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64 (nux-dextop)
Requires: libhogweed.so.2()(64bit)
Error: ...
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0answers
3 views
mjpg_streamer: unable to set format: 1196444237 res: 640x480
I am unable to open a UVC webcam on /dev/video1. I have downloaded mjpg-streamer and ran one of the proposed command:
./mjpg_streamer -i "input_uvc.so -d /dev/video1" -o "output_file.so"
I recieve ...
1
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0answers
4 views
dvgrab error: driver recieved an incomplete frame
I am unable to use my DV webcam:
# dvgrab -input /dev/video1
Waiting for DV...
End of pipe
"": frame dropped: timecode 00:00:00.00 date 1999.11.30 00:00:00
This error means that the ...
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0answers
26 views
What does one do when your installing software and it throws a bunch of requires on error in linux?
I'm installing ffmpeg on redhat 7 and so far it's been taking awhile as I have to install new repos to get to it. I've got atrpms repo installed and now I can do yum install ffmpeg.
But now I get hit ...
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1answer
15 views
Installing ffmpeg but need to install atrpms first on RedHat 7, issues of 404 not found
I'm following the instructions given here to install the atrpms repository.
After setting everything up and try to do a: yum install ffmpeg I get the following error below. The error states that it ...
1
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0answers
18 views
ffmpeg changed safe option again?
So in a previous version of ffmpeg it introduced a -safe 0 or -safe 1 option. I discovered this as I had a bash script that used ffmpeg with absolute paths i.e. in /dev/shm/. For the last 6 months or ...
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1answer
16 views
burning webvtt subtitles to mp4 video
I'm looking for a way that burning subtitles to mp4 videos with ffmpeg.
I used the following command to convert and burn subtitle but its not worked !
ffmpeg -i subtitle.vtt subtitle.srt
ffmpeg -i ...
1
vote
1answer
75 views
Help compiling ffmpeg with NVENC support under Linux
I'm trying to build ffmpeg with NVENC support so I can then build obs-studio with NVENC support, using this as a guide. I've sorted out every dependency after a bit of headache, and am now to the ...
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1answer
23 views
ffmpeg command not working on ec2 [closed]
I have a command ffmpeg -loglevel panic -i source-video/test222.mp4 -acodec copy -f segment -segment_time 10 -vcodec copy -reset_timestamps 1 -map 0 ./tmp/%d.ts which break up a video into 10 second ...
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2answers
47 views
How to merge MP3 files? [closed]
What's the best way to merge X MP3 files? Same length. I don't want to concatenate them, basically just want to merge/overlay them
Any suggestions?
Thanks
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1answer
32 views
How to encrypt the ffmpeg output when generating video chunks?
I can openssl encrypt a ffmpeg video stream with
ffmpeg -i video1.mp4-video1.mp4.mp4 -f ogg - |
openssl enc -des3 > outptu.ogg.des3
Which strategy would you use to encrypt the ffmpeg output ...
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0answers
15 views
Crontab starts again befor the process of conversion in ffmpeg ends(depending on time supose /2 minutes) How to Control that?
I am running a bash .sh file every two minutes with crontab. the problem is that when crontab runs bash file the process of ffmpeg video conversion starts,the conversion time varies depending on ...
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0answers
7 views
Divide video capture in chunks of size that varies through time
I create video chunks of 1 minute with
# DURATION=60
# ffmpeg -f video4linux2 -s vga -i /dev/video0 -f segment -segment_time $DURATION -strftime 1 '%Y-%m-%d_%H-%M-%S.ts'
Now suppose I want a ...
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1answer
44 views
“MPEG-1/2 does not support 3/1 fps” when sending webcam to ffserver
I am unable to send a stream to my ffserver.
I started the server with
ffserver -f /etc/ffserver.conf &
where ffserver.conf has not been modified. I tried sending a webcam stream with
ffmpeg -...
1
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0answers
24 views
avconv / ffmpeg threading not working
Am I doing something wrong or is the threading option in "avconv" broken? I tried the "-threads" option with H264 and mpeg2video and regardless of what value I give it (0 to 4) there is no difference ...
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0answers
26 views
Using FFMpeg to record the desktop
Currently trying to record my desktop for a project and it requires that I use ffmpeg, when using ffmpeg it is quite weird, and doesn't record at all how it should. It doesn't show chrome, or anything ...
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0answers
32 views
Server returned 404 Not Found when streaming a video to ffserver
I am unable to stream a webcam on a ffserver. When I run:
ffserver -f doc/ffserver.conf &
ffmpeg -f alsa -ac 2 -i plughw:0,0 \
-f video4linux2 \
-s vga -i /...
-1
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0answers
14 views
How to send an image to /dev/fb0?
I can send a video to /dev/fb0 with
mplayer -ov fbdev2 /dev/fb0 movie.mp4
How to do the same for a picture?
There are 2 strategies
Find how to play a still image with mplayer
Find a command that ...
0
votes
1answer
23 views
What is the format name to have a MP4 video as output in ffmpeg?
The following command
ffmpeg -f alsa -ac 2 -i plughw:0,0 -f video4linux2 -s vga -i /dev/video0 -f ogg - > video.mp4
Does not produce a .mp4 video.
I want to replace -f ogg with -f <mp4 ...
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vote
0answers
31 views
Don't wait for audio stream with ffmpeg/avconv using named pipes
I have two named pipes, audio_conv and video, for s16le and h264 streams, respectively. I want to convert them to webm format on fly. Data to these pipes proceeds from my application, that parses ...
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0answers
11 views
Encoder to msrle format with FFMPEG
I need to create some files for an old windows API, for a video playback. The native windows files which works with this old API have the format of MSRLE. They are used as small animations during copy,...
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1answer
20 views
How to do take webcam picture with repeatitively with a given interval (ffmpeg)?
The command
ffmpeg -f video4linux2 -s vga -i /dev/video0 -vframes 3 /tmp/vid-$ts.%01d.jpg
allows to take 3 frames with a certain interval.
How do I specify the time interval between each shot.
PS:
...
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0answers
14 views
How to directly play a ffmpeg generated output instead of writing it? [duplicate]
Say I have a ffmpeg command that generates a video video.mp4:
ffmpeg [options] video.mp4
How can I directly play the video and not write it instead of writing the video without playing it?
To be ...
0
votes
1answer
114 views
How to pipe the output ffmpeg?
I'd like to use the output of ffmpeg in order to encrypt the video with openssl:
I tried to use name pipe without sucess. With the command:
mkfifo myfifo
ffmpeg -f alsa -ac 2 -i plughw:0,0 -f ...
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0answers
17 views
ffmpeg output is mpeg1 or mpeg2?
This is a file created with mencoder from vhsrip
file test.mpg
test.mpg: MPEG sequence, v2, program multiplex
mplayer said
Playing test.mpg.
libavformat version 57.57.100 (internal)
MPEG-PS file ...
0
votes
0answers
22 views
How to batch convert my music library? [duplicate]
I want to convert my music library from WAV to ALAC (bash, macOS 10.12.1). I failed with my attempts (resulting path is truncated):
find . -type f -iname "*.wav" | while read fn; do ffmpeg -i "$fn" -...
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0answers
24 views
ffmpeg: reencode and re-stream a network stream at lower bitrate
I often find streams on the internet that are high-bitrate only, or video streams that offer no audio-only stream.
Is there a generic way to tell ffmpeg or ffserver, in my case on a small server, to ...
1
vote
1answer
38 views
Problems converting WAV to ALAC by a batch job
I use the following code to convert WAV to ALAC (bash, macOS 10.12.1):
find . -type f -iname "*.wav" | while read fn; do ffmpeg -i "$fn" -acodec alac "${fn%.wav}.m4a"; done
But there seems to be a ...
1
vote
1answer
101 views
How do I use ffmpeg or avconv to create a file from a raw source
I'm trying to make a video recorder, to capture video of my partners seizures for her doctor.
Because they're unpredictable, the system needs to be recording constantly, saving as 15 minute clips for ...
1
vote
0answers
56 views
arm-linux-androideabi-gcc is unable to create an executable file on Windows 10
I am trying to configure ffmpeg for android on windows 10 through bash Ubuntu terminal. I am follow this tutorial But getting error.
Error is
C:/Users/BIP042.BIPADBBSR/AppData/Local/Android/Sdk/ndk-...
1
vote
0answers
27 views
ffmpeg with v4l2, scale and still use OpenMAX hw acceleration
I got ffmpeg compiled with OpenMAX encoding acceleration support on RPi--yay! Now my problem is, I'm working with a protocol that insists on specifying its required resolution. As soon as i specify -...
1
vote
1answer
86 views
Mirror not found when trying to install FFMPEG on CENTOS7
I'm on a dedicated server with Root access. not familiar with servers. Im trying to install FFMpeg on my server. I'm getting errors can't figure out how to solve it. So any light on this will be very ...
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0answers
28 views
Broke my ffmpeg with custom build
I think I just broke my own ffmpeg on my Ubuntu 16.04.1.
If I start it, I get this:
ffmpeg
ffmpeg: error while loading shared libraries: libavdevice-ffmpeg.so.56: cannot open shared object file: No ...
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votes
1answer
135 views
How to formulate FFmpeg command for ZERO latency streaming to VR headset?
How would one formulate a command for point-to-point 2K 60-90Hz streaming from one PC to another with lowest possible latency using ffmpeg?
Full story:
I built a VR headset from an eyebox off Amazon,...
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0answers
15 views
Is there a way to use ffmpeg systemwide for IO?
I am currently trying to find out if it would be viable to build a video editing workstation on a linux based system. (compositing, color, 3D rendering mostly)
Is it possible to have any (video)...
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0answers
24 views
Initialize GPU ( FFmpeg QSV ) without User Session
I'm using CentOS 7.
I'm trying to Use FFmpeg with LIBMFX Support to initialize My Intel HD GPU for h264/h265 encodings.
I have set up everything, and it's working perfectly. The only problem is that ...
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0answers
126 views
How to download portion of video with youtube-dl command? (2)
This question has already been posted. However, I want to know if it is possible to only download a portion of a youtube video using a combination of youtube-dl and ffmpeg without downloading the ...
0
votes
1answer
85 views
Error Installing ffmpeg on CentOS 6.8
I'm having trouble installing the ffmpeg on my CentOS 6.8.
Before I settled from this tutorial.
Today can no longer, key links returns a 'Not found' on the island.
rpm --import http://apt.sw.be/...
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1answer
94 views
H264 Mpeg-4 missing in fedora 24
I saw an answer here but when I tried it with dnf it says packages does not exist. I'm having the sample problem when I try to run videos in my built-in fedora 24 video player (I'm new to linux btw)
...
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votes
1answer
102 views
DAV to AVI conversion failed
I want to convert DAV format video clips from CCTV recorders to AVI using command as below (convert test - 1.dav to test - 1.avi)
ffmpeg -y -i test\ -\ 1.dav -vcodec copy -movflags +faststart test\ -\...
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votes
1answer
98 views
ffmpeg itsoffset for audio not working
I am trying to add second mp3 file(5 second long) over first mp3 file (3 minute long) and it should start after 50 second. if possible it will be great to mix those two mp3 nicely and after that 5 ...
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0answers
20 views
Reconstruct Sony AVC MP4
This can't be that uncommon. The battery died while recording a video (Sony FDR AX33). The MP4 file is incomplete, at a minimum, there is no ending. Also in the AVC package, an xml file needs to be ...
2
votes
1answer
136 views
gnu parallel with ffmpeg does not process first file
I have some files
Joapira___BERLINA_DEL_HIERRO.mp4
Joapira___EL_BAILE_DEL_VIVO.mp4
Joapira___EL_CONDE_CABRA.mp4
Joapira___FLAIRE.mp4
Joapira___MAZULKA_DEL_HIERRO.mp4
...
1
vote
1answer
63 views
Add filters to ffmpeg presets
I would like to add filter parameters under ffmpeg preset (e.g. -spre directive).
Suppose a simple test.ffpreset under ~/.ffmpeg like this:
vcodec=h264
bitrate=1200
acodec=copy
How do we add hqdn3d=...
1
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1answer
35 views
Building Requirements-Specific Command For 'ffmpeg' Tool
Source Community
I've been trying to figure out an ffmpeg command with following requirements while converting 'avi' to 'mp4' with H264 video codecs. One command I tried was generic one like this ...
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1answer
22 views
extracting/copying audio from a specific part of a video file, possible?
Let's say I have a 2 hour movie and I want to extract/copy audio in another file say 5 minutes between 01:25:00 and 01:30:00, is there a way to do that.
The file is in .avi format -
Format ...
1
vote
1answer
536 views
ffmpeg connection to tcp://localhost failed
I've spent days going over google and serverfault ffmpeg questions, and I can't figure out why I get this error:
[tcp @ 0x357230] Connection to tcp://localhost:8090 failed (Connection refused), ...
0
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1answer
562 views
ffmpeg invalid data found when processing input
Have such script:
#!/bin/bash
# $1 -- extension, like *.MP4
# $2 -- output file name
ffmpeg -f concat -i <(find . -name '$1' -printf "file '$PWD/%p'\n" | sort) -c copy $2
Trying to concatenate ...
2
votes
1answer
294 views
Remove silence from audio files while leaving gaps
Currently we're using this command within a shell script to remove silence from audio files:
ffmpeg -i $INFILE -af silenceremove=0:0:0:-1:1:${NOISE_TOLERANCE}dB -ac 1 $SILENCED_FILE -y
This works ...
0
votes
1answer
849 views
How do I install ffmpeg on centos 6.8 with all dependancies? I am getting Error package
I am trying to install ffmpeg on Centos 6.8 server and I am getting some errors of required libs. I am not big on Linux I need your help. How do I install those missing libs? Where do I find them? ...
