> > > Does seeking in the original file works with ffplay?
>
> > I cannot answer your question because I do
> > not know how to try "seeking" from a console.
>
> (I don't understand what you are saying here.)
>
> Did you try playing your input file with ffplay?
> Does it play? Did you try to se
On 27/07/15 01:08, Carl Eugen Hoyos wrote:
[snip]
(I don't understand what you are saying here.)
Did you try playing your input file with ffplay?
Does it play? Did you try to seek?
Did you try to wildly click into the window that
opened? (Did a window open?)
Did you try to press all buttons on y
On 07/25/2015 11:53 AM, MrNice wrote:
>> The standard approach to this kind of issue is to use (as close to)
> losslessly encoded intermediate files as possible. I.e. either use a
> codec designed for lossless encoding such as "HuffYUV", or use something
> like x264 with "lossless" settings.
> Why
Original mkv containing raw yuv420p made by ffmpeg some months ago.
I needed to convert to y4m so I do -
ffmpeg -i ducks-2160p60-420.mkv -vcodec copy raw-ducks-2160p60.y4m
ffmpeg version N-74034-gce46627 Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.9.2 (GCC)
configuration
On Mon, Jul 27, 2015 at 15:19:01 +0100, Andy Furniss wrote:
> The overhead is a bit high! but the framerate looks good.
:-)
> Anyway players will play the vid but think it's 1000 fps ffmpeg -i below.
I tried to reproduce, and noticed that indeed the y4m header (very easy
to read, check here: htt
On 27/07/15 09:31, Frank Tetzel wrote:
Does seeking in the original file works with ffplay?
I cannot answer your question because I do
not know how to try "seeking" from a console.
(I don't understand what you are saying here.)
Did you try playing your input file with ffplay?
Does it play?
Moritz Barsnick wrote:
On Mon, Jul 27, 2015 at 15:19:01 +0100, Andy Furniss wrote:
The overhead is a bit high! but the framerate looks good.
:-)
Anyway players will play the vid but think it's 1000 fps ffmpeg -i
below.
I tried to reproduce, and noticed that indeed the y4m header (very
easy
> Smaller, you meant to say? Actually, you mistyped 496?
Damn... yes, I mistyped it, the correct duration is 296 (as you noticed in the
console log).
> Perhaps that's according to the header, and the actual video stream is
> longer,
resulting in about 300 seconds.
I think ffmpeg never outputs
How to do a 2pass encode using the NVENC codec ?
is it a single command, for example:
ffmpeg -i INPUT.mp4 -c:v nvenc -preset hq -profile:v main -c:a aac -strict
experimental -b:v 50 -b:a 128k -cbr 1 -2pass 1 -y OUTPUT.mp4
or, do we need multiple pass commands as with h264 ?
___
Hi Gergely,
On Mon, Jul 27, 2015 at 15:46:48 +, Lukácsy Gergely wrote:
> I think ffmpeg never outputs the header information regarding duration and
> such.
I think it does. It doesn't by default output the individual streams'
duration, though.
$ ffmpeg -i out_ffmpeg.mp4
Input #0, mov,mp4,
On Mon, Jul 27, 2015 at 17:28:28 +, JUGGALO BEAVIS wrote:
> is it a single command, for example:
> ffmpeg -i INPUT.mp4 -c:v nvenc -preset hq -profile:v main -c:a aac -strict
> experimental -b:v 50 -b:a 128k -cbr 1 -2pass 1 -y OUTPUT.mp4
> or, do we need multiple pass commands as with h264
Thank you.
nvenc codec seems to have it's own -2pass parameter, with possible values being
-1,0,1 (default -1)
Would this be the proper way to combine the nvenc's -2pass parameter with
ffmpeg's -pass parameter ?
ffmpeg -i INPUT.mp4 -c:v nvenc -preset hq -profile:v main -an -b:v 50 -cbr
1 -pa
On Mon, Jul 27, 2015 at 19:54:11 +, JUGGALO BEAVIS wrote:
> Thank you.
> nvenc codec seems to have it's own -2pass parameter, with possible values
> being -1,0,1 (default -1)
Oh, I wasn't aware of that. Due to lack of access to nvenc and its
documentation, I take my answer back in favor of so
On 7/26/15, Carl Eugen Hoyos wrote:
> Deron pagestream.org> writes:
>
>> I would have to get ffmpeg to work to begin with
>> to test that. Should I try ffmpeg without librtmp?
>
> That would be a good idea imo.
I captured short file without problems, with native rtmp support.
>
> Carl Eugen
>
>
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