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Hi guys,
okay I realiced how to get five separate wav files into one stream:
ffmpeg -i $fl -i $fr -i $fc -i ${bl}_shift.wav -i ${br}_shift.wav
-filter_complex "[0:0][1:0][2:0][3:0][4:0]amerge=inputs=5,
aresample=matrix_encoding=dplii" out.wav
but I am still not getting correct dplii
> On 14 Mar 2023, at 14:03, Natalia Molinero Mingorance
> wrote:
>
> what do you mean by " Why is the output size important if you use -preset
> ultrafast? “
That will mean quick and dirty encoding, at the cost of a higher bitrate.
-preset slow will make the file significant smaller, at the
what do you mean by " Why is the output size important if you use -preset
ultrafast? "
El mar, 14 mar 2023 a las 13:48, Bouke / edit 'B ()
escribió:
> On 14 Mar 2023, at 13:07, Phil Rhodes via ffmpeg-user <
> ffmpeg-user@ffmpeg.org> wrote:
> >
> > Also, it depends what you mean by 50% of the
yes, I removed the "-r", sorry. but, by reducing the resolution, the size
is also reduced somehow proportionally.
El mar, 14 mar 2023 a las 13:31, Michael Koch ()
escribió:
> Am 14.03.2023 um 10:37 schrieb Natalia Molinero Mingorance:
> > I'm using this command:
> >
> > -y -r -i $inVideoUri
On 14 Mar 2023, at 13:07, Phil Rhodes via ffmpeg-user
wrote:
>
> Also, it depends what you mean by 50% of the resolution. If your original
> video is 100x100 pixels and you reduce it to 50x50, then you have half the
> resolution, but you only have one quarter the pixels.
But, the image will
Am 14.03.2023 um 10:37 schrieb Natalia Molinero Mingorance:
I'm using this command:
-y -r -i $inVideoUri -movflags faststart -c:v libx265 -s
$videoResolution -c:a copy -preset ultrafast $outPutUri"
However, if "videoResolution" is a 50% of the original video resolution,
the resulting file
Am 14.03.23 um 10:37 schrieb Natalia Molinero Mingorance:
but I would like to know
how to estimate the final video size
you simply can't when it comes to modern multimedia codecs - you
underestimate the complexity of H265 trying to optimize quality and size
by thousands of variables
Hi Natalia
This gets complicated, but in general it depends on the compression settings.
"libx265" is capable of doing many different things. It's probably best if you
look up some examples of how that works because it's too much to explain here,
and examples will help.
Also, it depends what
I'm using this command:
-y -r -i $inVideoUri -movflags faststart -c:v libx265 -s
$videoResolution -c:a copy -preset ultrafast $outPutUri"
However, if "videoResolution" is a 50% of the original video resolution,
the resulting file size is not 50% of the original one. I assume there are
some
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