Generally this would be done first by analyzing the file before running the
ffmpeg command. Usually in the form of a small script.
Though scripting is not on topic for this mailing list, here is one anyways.
dependencies:
mediainfo
ffmpeg
--
#!/bin/bash
cid="$(m
Hi,
There was error occurred when when configure ffmpeg code on mac:
nasm/yasm not found or too old. Use --disable-x86asm for a crippled build.
If you think configure made a mistake, make sure you are using the latest
version from Git. If the latest version fails, report the problem to t
I want to automatically set a codec.
For example, if the codec of a movie is h264, set -c:v copy. Otherwise, set
-c:v libx264.
Please tell me the way to do.
Thank you for reading this mail.
tony_rui
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On Fri, Jun 23, 2017 at 20:59:50 +0200, Robert Krüger wrote:
> Hi,
>
> I just did a clean check-out on master did a plain configure with no
> options and the build failed. Heres the end of the output when the errors
> start:
>
> CC libavfilter/vsrc_life.o
> CC libavfilter/vsrc_mandelbrot.o
> CC l
Hi Rodolfo,
> but all happens is that they play together now…
Perfect!
For now.
> On the first of the two, I applied the `invert’ effect.
Are you sure?
> Where’s the comparison…?
That’s what you hear!
If you play two exact files „in sync“, and one of them is inverted, you should
hear … not
Steve Boyer writes:
> On Fri, Jun 23, 2017 at 7:11 AM, Rodolfo Medina
> wrote:
>
>> Steve Boyer writes:
>>
>> > If you want to see what really happened, import both files into Audacity,
>> > use a filter to invert one of the files, and slide it around until they
>> are
>> > 1:1 (it's off slight
On Fri, Jun 23, 2017 at 7:11 AM, Rodolfo Medina
wrote:
> Steve Boyer writes:
>
> > If you want to see what really happened, import both files into Audacity,
> > use a filter to invert one of the files, and slide it around until they
> are
> > 1:1 (it's off slightly IIRC) and then hit "Play" or d
Hi,
I just did a clean check-out on master did a plain configure with no
options and the build failed. Heres the end of the output when the errors
start:
CC libavfilter/vsrc_life.o
CC libavfilter/vsrc_mandelbrot.o
CC libavfilter/vsrc_testsrc.o
CC libavfilter/window_func.o
X86ASM libavfilter/x86/a
On Mon, Jun 19, 2017 at 20:17:34 +, Nicolas Winandy wrote:
> So, I looked in the ffmpeg documentation and found an interesting thread on
> multiple outputs : https://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs.
That's probably the right place to learn.
> Then, I have tried the piped p
Steve Boyer writes:
> If you want to see what really happened, import both files into Audacity,
> use a filter to invert one of the files, and slide it around until they are
> 1:1 (it's off slightly IIRC) and then hit "Play" or downmix to a single
> track. If both tracks are aligned correctly, yo
Hello everyone,
I am testing the DVCPRO encoder of ffmpeg and comparing it with other
tools in terms of picture quality.
I mentioned that the picture quality of an ffmpeg dvcpro50 encoding is a
little bit less than a dvcpro50 encoding from a carbon coder.
In numbers I can say:
Original Sour
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