You'll have to do this in two steps. here is the audio step.
Replace the *.wav files here with the actual path and filenames. (also, if
the wav files are 24 bit you'll have to add -acodec pcm_s24le in front of
the file names)
ffmpeg -i front_left.wav -i front_right.wav -i front_center.wav -i lfe.
As for the video, are you trying to reencode it (like change it to h.264 to
save space) or do you just want to copy it into another file with the audio?
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should those six separate audio tracks become a 5.1 audio file, or should
they be pasted one after the other in a line? if the latter you're talking
about concatanation; if the former, you'ree talking about merging the files.
I'm not even going to get into the problems with your video question.
__
Maybe that's because you're converting lossy audio to another lossy audio
format?
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Have you tried a batch file containing: for (*.bmp) do "C:\...FFmpeg.exe"
-i "...\Name%Xd.bmp" blah blah blah? where X in Name%Xd.bmp is the number
of nubers in the file name
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Your question interested me, so I googled around and found that FFmpeg can
in fact do this with Tile=1x2, although I'm having trouble getting FFmpeg
to work with the file names properly.
In a script I have on windows I use a cmd wildcard basically to insert the
same file name twice, but I'm not su
You would probably have better luck with ImageMagick, I recently cropped
one image into two like that by using -vf crop=w=1920:h=1080:x=0:y=0, but
I'm not aware of anything to do the opposite with.
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http:
I see, thanks for the info.
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Wait, by HBR are you referring to DTS-HD HBR? because the DTS decoder
doesn't support really anything beyond Core (aka old fashioned dts)
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What? TrueHD is lossless, therefore it's bitrate is variable, and higher
than 640kbps...
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No offense, but YUV420 is not at all lossless, only 444 is lossless
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Or, you can use the YUV4MPEG format which will be very quick, but it will
take up a fuck ton of space. 10 minutes of 1080p video will take up about
100GB.
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APNG is an extension to PNG allowing multiple frames, the fact that it's
commonly used like gif means nothing. it can do exactly what you're asking
about.
otherwise, you're gonna have to losslessly encode it with x264 and that
will take forever.
these are your choices.
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What are you using to record your video? ffmpeg? if so, you can set the
vcodec to apng, and the acodec to pcm, or flac, or whatever audio codec you
like and you should be set.
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If the video you're recording is short, you may just want to record to a
series of pngs, or bmps, then encode that to x264 or whateve.
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I see, thanks.
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@Carl
How often does VLC update their ffmpeg to the standard master branch you
guys host?
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I'm writing a C++ program, and I'm trying to use LibAVCodec to decode audio
a user enters into my program, with the aforementioned library.
in my program I've set up InputFile as an ifstream object, that takes input
from argv[1], what function do I use to pass this handle to the library?
_
You'll have to build it yourself, you can either compile it through the
MinGW/MinGW-W64 toolchain, or you can fire up a linux VM and cross compile
it for Windows, both of which aren't too difucult to set up, and there are
hundreds of guides.
On Sun, Aug 31, 2014 at 3:04 AM, Matin Lotfaliei
wrote
Did you guys get this message? It's not showing up in the ffmpeg-user
archive
On Tue, Aug 12, 2014 at 1:00 PM, Marcus Johnson
wrote:
> Does anyone know why dca is using this deprecated function instead of
> request_channel_layout? I changed it over here and it seems to work fine, I
Does anyone know why dca is using this deprecated function instead of
request_channel_layout? I changed it over here and it seems to work fine, I
converted dts to flac and experienced no problems at all but I thought I'd
ask just to be sure.
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What OS are you using? if Linux or Mac, open Terminal and type man ffmpeg,
that's how you access the man page.
another way to get the information is to type ffmpeg -h
On Tue, Aug 5, 2014 at 2:48 AM, Stephen Ho wrote:
> Hi,
>
> I was introduced to this wonderful program, but I find it very hard
erested in adding it, would you take a patch? I might
> have time to do something at some point.
>
>
> --
> Joakim Ziegler - Supervisor de postproducción - Terminal
> joa...@terminalmx.com - 044 55 2971 8514 - 5264 0864
>
> On 16/07/14, 11:26, Marcus Johnson
you can't, it's hardcoded, you yourself can in your program that you're
calling the libX functions with make a function that writes "H.264" to the
encoder field after it's finished, it wouldn't really be that hard to do.
or you could create a script to replace the bytes at X to Y with string Z,
ju
tp://ffmpeg-users.933282.n4.nabble.com/Changing-the-Quicktime-Format-visible-in-Quicktime-Player-tp4666345.html
> Sent from the FFmpeg-users mailing list archive at Nabble.com.
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