Displaying 20 results from an estimated 3000 matches similar to: "ffmpeg audio not working"
2010 Oct 01
20
Paperclip not executing FFMPEG properly
Im using a customs processor to run ffmpeg on a video to create a
thumbnail.
So far so good. Except when I do:
cmd = "-i #{@file.path} -f flv -s 320x240 ~/Downloads/foobar/q.flv"
success = Paperclip.run(''ffmpeg'', cmd)
Console is reporting:
ffmpeg ''-i /var/folders/uL/uL0bYOOZEZaJH5E+BmDJVE+++TI/-Tmp-/stream,
16824,1.mpeg -f flv -s 320x240
2008 Jun 27
1
Open Source Video Codec and Container (alternative to Xvid)
Hi CentOS users
I am running a forum with small video clips (from YouTube and others). I
convert those Macromedia Flash videos with:
$ mencoder example.flv -ovc xvid -xvidencopts bitrate=1000:autoaspect
-vf pp=lb -oac mp3lame -lameopts fast:preset=standard -o example.avi
I use mencoder RPM from Dag Wieers
1) Its very generic command line to convert videos. What would you
improve? The size
2010 Nov 15
1
optimization of theora contract job
Theora-devs:
I am in seek of a theora (but possibly vorbis/ogg/ffmpeg) dev to optimize the encoding in a realtime software product.
We do live encoding and transcode into ogg/theora/vorbis at various resolutions and frame rates. The higher resolutions cannot process in realtime and we are pushing the boundaries of hardware (cpu) encoding with the existing theora/ffmpeg.
Right now we have to
2011 Jan 21
1
theora_encode is adding vertical pixels
I am using theora_encode along with ffmpeg:
ffmpeg -an -s 1920x1080 -r 24 -i bigbuckbunny.mp4 -vcodec rawvideo \
-pix_fmt yuv420p -f rawvideo - 2>/dev/null \
| ffmpeg -an -f rawvideo -s 1920x1080 -r 24 -i - -f yuv4mpegpipe -
2>/dev/null \
|* theora_encode /dev/stdin 2>/dev/null *| ffmpeg -y -f ogg -i - \
-f mp4 -i bigbuckbunny.mp4 -map 0:0 -map 1:1 -vcodec copy \
-acodec libvorbis -ab
2008 Nov 13
2
How to fix broken ogg/theora files
>> Thanks for the suggestion. Unfortunately it did not help completely.
>> When we edit the original file with oggCut and then use oggz-validate we
>> get an error message like the one posted before. Now oggz-sort will fix
>> the file so oggz-validate doesn't find any errors. However ffmpeg still
>> produces and error with it:
>>
>> ffmpeg -i rlang.ogg
2008 Nov 13
2
How to fix broken ogg/theora files
>>
>> Examples of error messages follow:
>> $ oggz-validate jnazario.ogg
>> jnazario.ogg: Error:
>> 00:55:27.957: serialno 0846930886: Packet out of order (previous
>> 00:55:27.960)
>> 01:05:09.077: serialno 0846930886: Packet out of order (previous
>> 01:05:09.080)
>>
>> Are there any tools that can reliably fix broken Ogg/Theora files?
2009 Jun 29
3
oggz-merge.exe
Hi folks,I'm joining this list because I've encountered difficulties with
the ogg tools.
I'm running Windows, and can't find binaries for liboggz tools, such as
oggz-merge.exe
Can someone provide oggz-merge.exe?
So I use ffmpeg (v19289) for muxing
ffmpeg -y -i sync2.ogg -i sync.ogv -vcodec copy -acodec copy sync2.ogv
but the framerate fluctuates wildly on playback, and ogginfo
2009 Mar 12
2
compiling ffmpeg with --enable-libspeex (was Re: from Adobe Flex / Flash Player 10 .flv Speex via Red5 to .wav PCM?)
I am having trouble compiling ffmpeg to support speex, which didn't
work with the ubuntu libspeex-dev package, but looks like it might
with the Speex version 1.2rc1 tarball from http://speex.org/downloads/
How do I tell ffmpeg's configure and/or make to use the 1.2rc1 version
of libspeex in /usr/local/include instead of the older debian/ubuntu
libspeex-dev package in /usr/include/speex?
2009 Jan 03
1
Unable install ffmpeg
Hi,
I installed ffmpeg using yum, and then tried to convert a asx video to flv
it says unable to find encoder x264, eventhough it is installed and I am
able to view it when I check ffmpeg --help.Can anyone tell me how to fix
this issue?
Thanks and Regards
Marky
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2010 Oct 18
3
File size comparisons
Hi all,
I just did a brief test with 3 different codec combinations:
1) ffmpeg sorenson/flv, mp3 audio in flv container
2) ffmpeg h264/vorbis audio/matroska
3) ogg/theora/vorbis using encoder_example
Here are the results:
10721201 2010-10-16 14:46 origem1.flv
20731108 2010-09-13 23:04 origem1.mkv
33101703 2010-10-03 11:24 origem1.ogv
as you can see, flv wins hands down, and it doesn't look
2008 Apr 22
3
Encoding speed
I tried to encode two minutes from an AVI DV file 720x480:
ffmpeg latest release produces a FLV 320x240 25fps 360k video 40k audio in about 45 sec.
ffmpeg latest release produces an OGG 320x240 25fps 360k video 40k audio in about 1:20 sec.
ffmpeg2theora the same in about 2 minutes or more.
The FLV quality it's quite good, some dropped frames maybe.
I was wondering to know if ffmpeg team
2005 Nov 06
1
Piping AVI to ffmpeg2theora
I wish to transcode an AVI from 29fps to 15fps theora. I have tried many
combinations.
The nearest I have so far is to:
1)
ffmpeg -i input.avi -f avi -vcodec rawvideo -acodec pcm_s16le -r 15 -ar
22050 -ac 1 intermediate.avi
then
2)
./ffmpeg2theora-0.15.linux.bin -f avi -c1 -H 22050 -o out.ogg
intermediate.avi
This gives me an output I want, however, the intermediate uncompressed
stage
2010 Aug 12
2
Stream HD video
I agree I have not seen any H264 streaming info for icecast2.
If you are however interested in using ogg/vorbis (Theora) look up Theora
Streaming Studio in the Theora Cookbook and it will give you some info.
Additionally if you wish to script this task you can look up the info on the
three commands TSS wraps, specifically dvgrab/ffmpeg2theora/oggfwd. if your
source file is in a h264 medium you
2009 Feb 20
2
segfault on amd64 with ffmpeg
Hi,
and thank to you all for this great codec !
I have this bug on Debian Lenny with compiled packages of last svn versions of
ffmpeg and libtheora. This seems to append only on the amd64 arch. Here is a
valgrind log :
pre-barreau at augustins:~/video$ export LD_LIBRARY_PATH=/usr/local/lib
pre-barreau at augustins:~/video$ valgrind
/home/pub/apps/ffmpeg_dev/ffmpeg_svn/ffmpeg -i
2010 Oct 13
3
Need a help on Online Video Streaming using IceCast
Hello,
We are working on the Radio station project and we are trying to implement
the Live Video Streaming module using Icecast server with VLC player.
We have installed and configured the Icecast into our server. Also, we have
installed the VLC player in our local desktop computer.
The USB webcam(200 CMOS UCAM - DLC220T) has been connected into my machine.
Now we are trying to live video
2009 Dec 10
2
Fwd: Vorbis-java wav-ogg encoder produces distorted OGG file
Hi,
I was really interested in the java version of the same since I wanted to
use it in my java application in a platform independent way.
Anybody who have managed to use the java port to encode wav to ogg, this is
only audio, can assist me to solve my problem. I have been looking at the
code and the svn but no updates seem to be available. Some guidance on what
could be the problem on the source
2007 Jul 17
2
swfdec new version
Hi,
Firstly thanks for great job done with swfdec.
I had recognized swfdec at gtk.org site. Last week i decided to integrate
it to gtk+webcore browser.
And i successfully did it with version 0.4.5
Even thought it is integrated and works fine there are some problems with
swfdec. I want to ask some questions about it. Also yesterday i saw the last
release 0.5 And i have some questions about it.
2006 Dec 30
5
Theora encoding in FFmpeg
(Cross posted to theora-dev@xiph.org and ffmpeg-devel@mplayerhq.hu)
I am working towards adding Theora encoding support to libavcodec in
FFmpeg. I am doing this by simply calling libtheora from libavcodec.
I am at the point where I can execute:
"./ffmpeg -v 100 -i test.wmv -f avi -an -vcodec theora -b 1000000 -y test.avi"
I get some whirring and an output file written. My calls to
2006 Apr 07
4
reading mpeg4 dimensions and flv dimension using ruby
Hey guyz,
Well basically what i am trying to do is get ruby to read my video files
in so that i can get the dimensions of the video and then place the
dimension sizes in my view. The two formats i need to do this with are
mpeg4 (h.264) and FLV. Is there anyway i can get rails to access the
metadata of these formats and pull the dimensions from the metadata? Any
help would be greatly
2013 Apr 16
2
Krad Pipe To
https://gist.github.com/oneman/5394332
This is a little hack for sending -live encoded- WebM streams to Icecast
from STDIN.
An example (I was using libav from git, params likely different between
libav, ffmpeg etc programs)
avconv -v debug -f video4linux2 -s 320x240 -r 10 -i /dev/video0 -vcodec
libvpx -threads 2 -vb 128k -r 10 -f webm pipe:1 | krad_pipe2
europa.kradradio.com 8008