Video and audio converter, can also capture live from an audio/video source.
0
votes
0answers
8 views
Adding a watermark to MTS video file using avconv
I'm following the steps mentioned here to add a watermark to my videos but there are 2 issues :
It doesn't seem to recognize MTS format as input. Does avconv need any additional libraries to read ...
1
vote
0answers
19 views
How to set duration for avconv?
I'm trying to cut a portion from an mp4 video with avconv, but it doesn't seem to care about the -t param.
My command line is
avconv -t 10 -i GOPR0001.MP4 cut.MP4
This will process the whole ...
0
votes
1answer
61 views
avconv how to copy all stream and merge metadata (fix creation date)?
I am trying to fix the metadata of some old videos, so i would like to copy all streams audio video and subtitle and merge the metadata from a txt file.
I first dump the metadata with:
avconv -i ...
3
votes
1answer
49 views
How to capture desktop sounds (Pulse Audio output) from avconv?
I've tried :
avconv -f alsa -i pulse recod.wav
..but it doesn't capture anything.
Have any idea?
Thanks!
0
votes
0answers
93 views
How to convert+resize+deinterlace MKV (H.264+MP3) to MP4 (H.264+AAC) with avconv - while keeping subtitles?
I'd like to convert MKV to MP4 by considering the following on Precise (64bit):
deinterlace
denoise
resize (only want specify width and aspect ratio, height is variable between files)
make use of ...
0
votes
1answer
99 views
Using avconv, when remuxing to MKV, is there a way to fix packed AVI input files?
Due to compatibility bugs between Plex server and Panasonic TVs, the only way to get it to work well is remux everything to MKV, straight copy all streams (video, audio, subtitle)
Seems simple ...
1
vote
1answer
56 views
What (input) types of files can avconv convert and to what (output) files?
I like to use simple commands (in Thunar custom actions), like avconv -i %f %f.mp3.
I can replace mp3 with flac for example - but what other output extensions can be used?
Also, in Thunar custom ...
0
votes
0answers
27 views
Strange blue flashes when using a screen recorder, white flashes when using vlc to record
I use cinnamon currently and whenever I use ffmpeg to record my screen, blue flashes appear when I interact with the cinnamon panel and applets. When I initiate a recording in vlc, similar things ...
1
vote
0answers
47 views
Splitting audio channels using pulseaudio
My mission is record desktop using avconv (ffmpeg) + record microphone input + use sphinx program which also need the same microphone for voice control.
Now, the problem is that if I start sphinx ...
0
votes
0answers
94 views
Why does avconv not work to record my screen?
I am trying to record my screen (without sound) using avconv but i think there is something wrong with it.
I gave the command
avconv -f x11grab -s hd720 -r 30 -i 0:0 sample.mov
it ends up ...
0
votes
0answers
23 views
Share a microphone between twinkle and avconv
I am trying to setup desktop recording in my office to help train our operators and I have almost everything working under Ubuntu12.
I am using avconv to record the desktop and audio:
avconv -f alsa ...
0
votes
0answers
40 views
Avconv -g parameter description
This is the official description of parameter:
‘-g[:stream_specifier] integer (output,video)’
set the group of picture (GOP) size
Not very informative i'd say. :D
Can anyone explain what does it ...
0
votes
1answer
67 views
Convert a bunch of jpegs to a movie
I have a bunch of non-consecutivly numbered jpegs (they are in order, but there are gaps in the sequence) that I want to convert into a movie. When I try using convert, ffmpeg or avconv, it creates ...
1
vote
2answers
75 views
I get an error when trying to convert video
I m trying to convert mp4 video file to avi file with
ffmpeg -i 10.mp4 -vcodec mpeg4 -vtag XVID -b 990k -bf 2 -g 300 -s 640x360 -acodec libmp3lame -ab 128k -ar 48000 -ac 2 -pass 2 -f avi 10.avi
but ...
3
votes
1answer
283 views
How can I rotate video by 180 degrees with avconv
I'd like to rotate video (mp4) by 180 degrees, but not flip. Is it possible to do it with avconv?
3
votes
1answer
399 views
Is 12.10 avconv's image sequence support (img%03d.jpg) broken?
I'm using avconv version 0.8.5-6:0.8.5-0ubuntu0.12.10.1, and am trying to encode a sequence of PNGs into a video, using the wildcard format (avconv -f image2 -i img%d.jpg /tmp/a.mpg), found in both ...
0
votes
1answer
77 views
bash script : is it possible to recognize video format from files (to batch extract audio from them)?
I have written a little bash script to extract audio from video files in batch mode.
Sound is extracted from each mp4 file to flac format using avconv (and the flac codec).
#!/bin/sh
#
# Batch ...
0
votes
1answer
180 views
How can I convert video to DivX4 to play on my Kogan TV?
I want to convert some videos to play on my Kogan TV using a portable hard-drive, but I am having trouble getting it to work. Most of my avi files, encoded using as xvid, all come up as 'unsupported ...
0
votes
1answer
690 views
Converting from mp4 to Xvid avi using avconv?
I normally use avidemux to convert mp4s to Xvid AVI for my Philips Streamium SLM5500. Normally I select MPEG-4 ASP (Xvid) at Two Pass with an average bitrate f 1500kb/s for video and AC3 (lav) audio ...
0
votes
0answers
89 views
Ustream and avconv
I want to use avconv to stream to my ustream channel. I already know my rtmp url and my stream key. What do I do now via the command line?
0
votes
1answer
102 views
How drop an audio stream using avconv?
How do I Drop audio from a MKV with DTS encoding? I am using this command avconv -i Movie.mkv -c:v copy movie.mp4.
I know the command would include the codec command but I don't know how to use it.
0
votes
1answer
344 views
converting multiple files with avconv…libmp3lame0 not found
I have about 20 .webm files that I would like to convert to audio in the terminal. I want to do
avconv -i *.webm -acodec libmp3lame0 -aq 4 *.mp3
I tried:
for i in *.webm; do avconv -i "${i}" ...
1
vote
3answers
187 views
How can I dub an audio track over a video I'm making with avconv?
So to start out with, I having figured out how to animate a number of still frames into a video, like this:
avconv -f image2 -i %06d.png -r 24 -qscale 1 aniron.avi
I have a bunch of files in the ...
3
votes
0answers
216 views
Error while recording a RTSP stream with avconv
I need to losslessly record a RTSP stream of an Axis 211a camera using avconv on Ubuntu 12.04. I am using this command :
avconv -rtsp_transport tcp -f rtsp -i rtsp://<IP>/mpeg4/media.amp ...
1
vote
1answer
528 views
Using avconv and keeping Audiostreams and Subtitles
I am trying to encode a mkv-file while keeping the audiostreams and the subtitles. This is the command I am using:
avconv -i inputfile.mkv -c:v mpeg2video -acodec copy - scodec copy -b:v 5000k ...
2
votes
2answers
99 views
How to convert flv file(s) to mp3 from PCManFM's (Open with) context menu?
Opening a terminal in a folder that contains a flv file called "one" (one.flv) and running this command: ffmpeg -i one.flv one.mp3 the flv file is converted to mp3 with the same name and in the same ...
1
vote
1answer
432 views
Normalizing Video Volume using avconv
I have a collection of videos, in the .mkv and .mp4 (AAC+H.264) formats. The .mkv files are ok, but all the .mp4 files have such a low volume that I can hardly hear it on my phone, even when volume is ...
0
votes
0answers
321 views
Record stream with avconv stops prematurley
I am trying to simply record a IP camera stream to my harddrive on Ubuntu Linaro. It works very well for 4 seconds then stops. There are no errors and playback is perfect. It seems like it is doing it ...
2
votes
1answer
1k views
Trying to convert MKV to MP4 with avconv, failing
I am trying to convert an MKV file to MP4 to be compatible with my PS3. I am using:
avconv -i file.mkv -c copy file.mp4
It fails and I get the following error:
[mp4 @ 0x8a17c00] pts < dts in ...
0
votes
0answers
82 views
Experiencing Audio Desync when editing videos converted by avconv
So, I have a few MP4 video files that I want to edit, and in my experience doing so, editing such files are a huge strain on my system. So, I run these files through avconv, converting them into ...
4
votes
3answers
1k views
Batch extract audio with avconv
I have about 70 mp4 files, and I want to extract the audio files directly without transcoding further. All the mp4 files have aac audio files.
I understand I can use the following command to extract ...
0
votes
0answers
35 views
How to demux an mp4 file [duplicate]
Possible Duplicate:
How can I extract audio track from video file?
I have an mp4 file, and I want to separate the video and audio to separate files. I know the audio file in the mp4 file ...
1
vote
3answers
477 views
Recording speaker audio using avconv
I'm having some problems recording the audio from my speakers using avconv.
This is the command I type into the terminal:
avconv -f alsa -i pulse -f x11grab -r 30 -s 1920*1080 -i :0.0 -vcodec ...
3
votes
1answer
974 views
2-pass encoding with avconv
I don't understand why the video quality with multi-pass encoding is worst than one pass?
When I do this, it is correct:
avconv -i video.mpg -s 640x360 -threads auto -vcodec libxvid -b 800k -r 24 -g ...
0
votes
1answer
757 views
Avconv ac3 to aac or mp3 is not synced with video
I'm trying to convert a MPEG2 file to H264/AAC.
No problem about video, but when I convert Audio: ac3, 48000 Hz, stereo, s16, 255 kb/s to MP3 or AAC, with any bitrate, the sound is not synced with ...
0
votes
1answer
2k views
Problem using avconv to convert .mp4 to .webm
I'll try to describe my situation:
I have an android phone makes video in mp4 format.
I like to share this video on my web page and jwplayer.
Such that operates well. I use one script to make all and ...
6
votes
1answer
788 views
Streaming desktop with avconv - severe sound issues
I'm trying to do some live streaming in Ubuntu 12.10, but I'm having some problems with audio. More specifically, the quality is complete garbage and it's at least 10 seconds out of sync with the ...
0
votes
1answer
275 views
“Incompatible sample format 's16' for codec 'pcm_s24le', auto-selecting format 's32'” error in audio conversion using avconv
I use the command
avconv -y -i input_file -acodec pcm_s24le -r 24 -ar 48000 output_file
to extract audio from videos. With Ubuntu 10.04 the command run succesfully, but with Ubuntu 12.04 I receive ...
5
votes
2answers
3k views
How can I use avconv to convert multiple files in the terminal?
I'm new to Linux and I want to execute one command on every file in a loop:
avconv -i *.mp4 -vcodec copy -ac 2 -strict experimental *.mp4
Can any one tell me how I can do this? I have more than 100 ...
3
votes
0answers
691 views
How to stream a local video file over Internet using avconv/avserver?
As FFmpeg is going to be dropped from Ubuntu, it will be important to know how to broadcast videos over Intrnet using avconv. An official guide is available, but it doesn't give much information how ...
0
votes
1answer
366 views
Streaming desktop to webcam with avconv
I'm trying to use avconv to capture my desktop and stream it on my webcam. Unfortunately I do not know what output format I should use to do this. The following is what I currently have.
avconv -f ...
0
votes
0answers
86 views
Can't FFWD or REV on MP3's created by avconv in my iPhone
I'm using aconv to extract audio from some videos, but some weeks ago, the MP3 seems to be ok, but when loaded into my iPhone 4, I can't fast forward or rewind the current track. It only happens with ...
3
votes
1answer
560 views
How to output avconv with pipe
I am trying to pipe an output from avconv to grep but somehow the pipe is not working correctly. The following ways are not working:
avconv -i MOVIE.mkv | grep SOMETHING - Which should show only the ...
4
votes
3answers
1k views
ffmpeg/avconv - the -psp option no longer works on Sony Walkman
Since the changeover from ffmpeg to avconv, the -psp option does not seem to render video correctly for Sony Walkman - "file format not supported", it was perfect before.
ffmpeg -i video.avi -f psp ...
3
votes
2answers
2k views
How to add microphone audio into avconv's video in x11grab mode?
I want to create some screencast, I am using avconv (recent ffmpeg counterpart) for doing so.
This is the reference for command I used. I also referred the avconv manual pages. Due to some reason I ...
