Hi guys,
I'm encoding videos target a max average bitrate and want to achieve good
encoding quality.
When I use
ffmpeg.exe -i a.mp4 -c:v mpeg4 -profile:v 15 -vtag DIVX -bufsize 308
-maxrate 800 -bt 800 -an a.avi (so that maxbitrate will be
8000kbps), in this case I get a.avi wit
YIRAN LI gmail.com> writes:
> ffmpeg.exe -i a.mp4 -c:v mpeg4 -profile:v 15 -vtag DIVX
> -bufsize 308 -maxrate 800 -bt 800 -an a.avi
> (so that maxbitrate will be 8000kbps)
You forgot to set the video bitrate.
[...]
> 1. for mpeg4 encoder, what qscale value is good enough
> to k
Mystream Adventure gmail.com> writes:
> - VP9 & x265
FFmpeg neither supports vp9 nor x265 encoding so I don't
think your question is FFmpeg-related.
Note that both libvpx and libx265 are very slow encoders,
consider using libx264.
Carl Eugen
___
f
Francesco Bucciantini gmail.com> writes:
> I would like to know whether FFMpeg supports the new .imf format
Please upload a few samples for us.
Carl Eugen
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Hi,
I think I know the answer to this question before I ask it, but would feel
silly if it turned out I had missed something, so here goes:
As it stands, using ffmpeg I can join a stream and, providing I use a
verbose enough logging, can get an idea of the number of RTP dropped
packets over a giv
Am 06.04.2016 01:08 schrieb "Francesco Bucciantini" :
>
> Hi,
> I would like to know whether FFMpeg supports the new .imf format or
> not and, if not, if you are planning to support it in the very next
> future.
>
> Thank you in advance.
I wouldn't expect it to see this soon since IMF is a very co
On Wed, Apr 6, 2016, at 10:13, Carl Eugen Hoyos wrote:
> FFmpeg neither supports vp9 nor x265 encoding so I don't
> think your question is FFmpeg-related.
Are you sure? I'm using the vp9 codec with ffmpeg without any problems
(except it being very slow...)
Helo Franscesco,
Do you think VP9 and x265 codec currently is not ready for live streaming
(low latency)?
On Wed, Apr 6, 2016 at 4:23 PM, Francesco Turco wrote:
> On Wed, Apr 6, 2016, at 10:13, Carl Eugen Hoyos wrote:
> > FFmpeg neither supports vp9 nor x265 encoding so I don't
> > think your
On Wed, Apr 6, 2016, at 12:28, Mystream Adventure wrote:
> Do you think VP9 and x265 codec currently is not ready for live streaming
> (low latency)?
I don't know about live streaming / low latency. My use case is
different: transcoding DVD movies. But it definitively seems that ffmpeg
supports V
On Wed, Apr 06, 2016 at 11:23:50 +0200, Francesco Turco wrote:
> On Wed, Apr 6, 2016, at 10:13, Carl Eugen Hoyos wrote:
> > FFmpeg neither supports vp9 nor x265 encoding so I don't
> > think your question is FFmpeg-related.
>
> Are you sure? I'm using the vp9 codec with ffmpeg without any problem
Am 06.04.2016 um 17:01 schrieb Moritz Barsnick:
On Wed, Apr 06, 2016 at 11:23:50 +0200, Francesco Turco wrote:
On Wed, Apr 6, 2016, at 10:13, Carl Eugen Hoyos wrote:
FFmpeg neither supports vp9 nor x265 encoding so I don't
think your question is FFmpeg-related.
Are you sure? I'm using the v
Hello
I'm trying to create a movie from a series of .png files.
The file names are of the form "NWAT_Vort_GB_.pg",
where is a 4 digit number. The lowest value is =1148.
I write in my windows command shell, from the same folder as the .png files:
ffmpeg -f image2 -i NWAT_Vort_GB_%d.p
Thanks Reto, that worked!
Aviv
On Wed, Apr 6, 2016 at 9:41 AM, Reto Kromer wrote:
> aviv solodoch wrote:
>
> >I'm trying to create a movie from a series of .png files.
> >The file names are of the form "NWAT_Vort_GB_.pg",
> >where is a 4 digit number. The lowest value is =1148.
> >
aviv solodoch wrote:
>I'm trying to create a movie from a series of .png files.
>The file names are of the form "NWAT_Vort_GB_.pg",
>where is a 4 digit number. The lowest value is =1148.
>
>I write in my windows command shell, from the same folder as the .png files:
>
>ffmpeg -f image
2016-04-06 18:28 GMT+02:00 aviv solodoch :
> I'm trying to create a movie from a series of .png files.
> The file names are of the form "NWAT_Vort_GB_.pg",
> where is a 4 digit number. The lowest value is =1148.
>
In addition to the other reply, I think this link can be useful:
http
Dear Team,
I am using ffmpeg.exe for converting video into images and getting
problem while extraction . Video files are located on network . Some
times images (frames) getting skipped while extracting it from video (which
is at network ) .
I will read it, thanks again!
Aviv
On Wed, Apr 6, 2016 at 10:26 AM, Cley Faye wrote:
> 2016-04-06 18:28 GMT+02:00 aviv solodoch :
>
> > I'm trying to create a movie from a series of .png files.
> > The file names are of the form "NWAT_Vort_GB_.pg",
> > where is a 4 digit number. The low
Hi, its possible to install FFMPEG 3.0.1 into CentOs 6?
I only find older versions!
In this case how can we do that?
thanks!
Xavi Llorella
ICT systems engineer
www.agilecontent.com
Practice in systems department, Agile Content
Avinguda Diagonal 449, 7º 1ª - 08036 BARCELONA
_
On Wed, Apr 06, 2016 at 11:45:37 +, Gururaj Nayak wrote:
> Dear Team,
>I am using ffmpeg.exe for converting video into images and getting
> problem while extraction . Video files are located on network . Some
> times images (frames) getting skipped while extracting it
On Wed, Apr 06, 2016 at 10:38:13 +0200, Xavier Llordella wrote:
> Hi, its possible to install FFMPEG 3.0.1 into CentOs 6?
> I only find older versions!
Either you go complain with those who try to provide repositories, or:
You build yourself:
https://trac.ffmpeg.org/wiki/CompilationGuide/Centos
Xavier Llordella agilecontent.com> writes:
> Hi, its possible to install FFMPEG 3.0.1 into CentOs 6?
> I only find older versions!
Please remember that if you are not a distributor yourself
the only recommended and supported version is current
FFmpeg git head.
Carl Eugen
___
Anatol wrote:
The idet results are of an output file.
The source is progressive.
I don't have the command line of the sample file.
I am aware that those are unrelated issues, but thanks for the clear
expatiation, it helped me to understand it better.
I'll try the 'interlace' filter, but skip the
Hi
I want to extract 8 thumbnails from every video I have which represents
a linear "timeline" over the complete length (100percent) of the video.
Examples:
90min video: thumbnail at Minute 10, 20, 30, ... 80.
9min video: thumbnail at Minute 1, 2, 3, ... 8.
120min video: thumbnail at Minute 15
Thanks And,
But no, it did not help
On Wed, Apr 6, 2016 at 9:23 PM, Andy Furniss wrote:
> Anatol wrote:
>
>> The idet results are of an output file.
>> The source is progressive.
>> I don't have the command line of the sample file.
>>
>> I am aware that those are unrelated issues, but thanks for
Anatol wrote:
Thanks And,
But no, it did not help
Please avoid top posting.
Yea, I missed that your rather long command line already had -top 1
in addition to -flags +ilme+ildct.
Earlier in the thread mediainfo got a mention and given progressive
input for libx264 either
-vf setfield=tff -x2
On Wed, Apr 06, 2016 at 21:02:17 +0200, Christoph Gerstbauer wrote:
> I want to extract 8 thumbnails from every video I have which represents
> a linear "timeline" over the complete length (100percent) of the video.
[...]
> Is there a filter which can be used for that in combination with the
> -v
Am 06.04.2016 um 10:38 schrieb Xavier Llordella:
Hi, its possible to install FFMPEG 3.0.1 into CentOs 6?
I only find older versions!
In this case how can we do that?
by build your own package and maintain ffmpeg with likely a also recent
libx264 statically linked at your own as i do for Fed
On Wed, Apr 06, 2016 at 23:37:34 +0200, Reindl Harald wrote:
> - if you look in the list archives i posted my rpm-spec surely multiple
> times
Indeed. I was going to ask: Could you kindly provide
ffmpeg-snapshot-latest.sh and x264-snapshot-latest.sh? (Even if they
are semi-trivial.)
Moritz
_
Am 06.04.2016 um 23:53 schrieb Moritz Barsnick:
On Wed, Apr 06, 2016 at 23:37:34 +0200, Reindl Harald wrote:
- if you look in the list archives i posted my rpm-spec surely multiple
times
Indeed. I was going to ask: Could you kindly provide
ffmpeg-snapshot-latest.sh and x264-snapshot-latest.s
* Moritz Barsnick on Wednesday, April 06, 2016 at 23:13:25 +0200
> On Wed, Apr 06, 2016 at 21:02:17 +0200, Christoph Gerstbauer wrote:
>> I want to extract 8 thumbnails from every video I have which represents
>> a linear "timeline" over the complete length (100percent) of the video.
> [...]
>> Is
On Thu, Apr 07, 2016 at 00:08:30 +0200, Reindl Harald wrote:
> attached with .txt extension because some inboundfilters (like ours)
> reject executeable extensions
Many thanks!
> in the meantime i switched to generate .xz instead tar.bz2 to make the
> archived src.rpm files smaller
If you pres
Am 07.04.2016 um 00:24 schrieb Moritz Barsnick:
On Thu, Apr 07, 2016 at 00:08:30 +0200, Reindl Harald wrote:
attached with .txt extension because some inboundfilters (like ours)
reject executeable extensions
Many thanks!
in the meantime i switched to generate .xz instead tar.bz2 to make th
2016-04-06 18:12 GMT+10:00 Carl Eugen Hoyos :
> YIRAN LI gmail.com> writes:
>
> > ffmpeg.exe -i a.mp4 -c:v mpeg4 -profile:v 15 -vtag DIVX
> > -bufsize 308 -maxrate 800 -bt 800 -an a.avi
> > (so that maxbitrate will be 8000kbps)
>
> You forgot to set the video bitrate.
>
Hi Carl, my
YIRAN LI gmail.com> writes:
> > > ffmpeg.exe -i a.mp4 -c:v mpeg4 -profile:v 15 -vtag DIVX
> > > -bufsize 308 -maxrate 800 -bt 800 -an a.avi
> > > (so that maxbitrate will be 8000kbps)
> >
> > You forgot to set the video bitrate.
>
> my target is to archieve good quality while keepin
2016-04-07 10:56 GMT+10:00 Carl Eugen Hoyos :
> YIRAN LI gmail.com> writes:
>
> > > > ffmpeg.exe -i a.mp4 -c:v mpeg4 -profile:v 15 -vtag DIVX
> > > > -bufsize 308 -maxrate 800 -bt 800 -an a.avi
> > > > (so that maxbitrate will be 8000kbps)
> > >
> > > You forgot to set the video bitr
YIRAN LI gmail.com> writes:
> ffmpeg.exe -i big_buck_bunny.mp4 -c:v mpeg4 -profile:v 15
> -vtag DIVX -bufsize 308 -maxrate 800 -bt 800
> -minrate 0 -an a.avi
As said, this command is missing a video bitrate.
> ffmpeg.exe -i big_buck_bunny.mp4 -c:v mpeg4 -q:v 4 -profile:v 15
>
2016-04-07 11:43 GMT+10:00 Carl Eugen Hoyos :
> YIRAN LI gmail.com> writes:
>
> > ffmpeg.exe -i big_buck_bunny.mp4 -c:v mpeg4 -profile:v 15
> > -vtag DIVX -bufsize 308 -maxrate 800 -bt 800
> > -minrate 0 -an a.avi
>
> As said, this command is missing a video bitrate.
>
> > ffmpeg.e
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