Hi Alex,
> On Jan 23, 2015, at 10:23 AM, Alex Kink wrote:
>
> Hello all.
>
> Is there a way to detect blue screen (usually generated by analog videotape
> equipment) using ffmpeg. I know there is a way to detect black screen.
>
> Below is a sample of what I have in mind.
>
> https://www.yout
On 01/19/2015 07:49 PM, Dave Rice wrote:
> I'm not familiar enough with windows to suggest an alternate to xxd,
> though perhaps it can be installed on windows.
I'm also not sure, but maybe some of the Windows builds of GNU Utils
provides xxd binaries?
For example:
http://gnuwin32.sourceforge.net
On 1/23/15 9:28 AM, Deron wrote:
I would like to generate 4 different HLS (sub)streams from a single
DVB capture, but ffmpeg fails to keep up with more than 2. Yes, I have
the CPU power and I'm writing to a ram disk (or SSD, doesn't matter).
I have a dual tuner capture card and can generate two
Dave Rice dericed.com> writes:
> Not sure if ffmpeg supports any lossy codec in
> WAV but the specification does allow it.
Among other lossy codecs, FFmpeg supports muxing
adpcm_ima_wav and at least a handful other adpcm
codecs including G726 and G723, it supports muxing
mp2, mp3, aac, wma1,
On 15-01-23 at 10:05, Peter Rabbitson wrote:
> I seem to be unable to set a specific profile with either of the
> commands as shown below:
>
> rabbit@Ahasver:~$ ffmpeg -hide_banner -y -filter_complex 'color=red'
> -t
> 1 -c:v libx265 -strict experimental -profile:v main444-10 -f mp4
> /dev/null
> [
Hi, sorry for the bad formatting in the previous emails, hopefully this should
be better, I have also attached the output log, just in case.I am downscaling
an HD movie from 1920x1080 to 720x576 and want to make sure the color
conversion is done correctly, which with my current settings I am sur
Wow. I feel like a dumbass. Thank you very much, I was pulling my hair out
(and I don't have a lot of them left)!
Bye,
Christian
On Fri Jan 23 2015 at 5:39:51 PM tim nicholson <
nichot20-at-yahoo@ffmpeg.org> wrote:
> On 23/01/15 16:14, Christian Foerster wrote:
> > Hi all,
> >
> >
> > I'm t
On Thu, Jan 22, 2015 at 14:04:25 +, Kevin Wells wrote:
> when zooming into the video. If remove the colormatrix=bt709:bt601
> altogether then the very faint green pattern / interference goes. So
> my question is do I need any color conversion (is ffmpeg already
> doing this for me) and if I do
> Please start a new thread, and format your email with line breaks at
> some suitable value (80 columns is considered normal but not mandatory).
Or at least make sure there are linebreaks where there were such in the
original output.
I believe the mailer is gratuitously removing linebreaks and f
Is my command placement wrong? Is there something I'm not seeing here?
Anything?
On Thu, Jan 22, 2015 at 11:01 AM, Jeremy Buseman
wrote:
> I'm trying to limit the amount of time my stream runs for but adding
> -timelimit or -t doesn't seem to do anything. Anyone have any suggestions?
>
> ffmpeg
On Fri, Jan 23, 2015 at 16:18:17 +0100, Werner Robitza wrote:
> I guess what could work is writing the image as an MJPEG stream (or
> something similar) to a Linux pipe, which is then read by ffmpeg, but
> I have no idea how to get the timing for this right.
Perhaps as two (or several) looped imag
On Fri, Jan 23, 2015 at 09:54:04 -0500, Dave Rice wrote:
> Just to be picky, the WAV container can contain compressed audio data
> so if pcm is not needed, one could control a lossy bitrate if using a
> lossy codec that WAV supports. Not sure if ffmpeg supports any lossy
> codec in WAV but the spe
On 23/01/15 16:14, Christian Foerster wrote:
> Hi all,
>
>
> I'm trying to convert a file to DNxHD 120 (as DNxHD 85 doesn't seem to be
> supported). It fails because I'm apparently using some wrong parameter. Can
> anyone point me to where I went wrong?
>
> Thanks a lot,
> Christian
>
>
> This
I would like to generate 4 different HLS (sub)streams from a single DVB
capture, but ffmpeg fails to keep up with more than 2. Yes, I have the
CPU power and I'm writing to a ram disk (or SSD, doesn't matter). I have
a dual tuner capture card and can generate two different HLS substreams
per tun
Hi all,
I'm trying to convert a file to DNxHD 120 (as DNxHD 85 doesn't seem to be
supported). It fails because I'm apparently using some wrong parameter. Can
anyone point me to where I went wrong?
Thanks a lot,
Christian
This is my command:
ffmpeg -i schuerrle.mp4 -c:v dnxhd -b:v 120m -s 1920
Hello all.
Is there a way to detect blue screen (usually generated by analog videotape
equipment) using ffmpeg. I know there is a way to detect black screen.
Below is a sample of what I have in mind.
https://www.youtube.com/watch?v=fC_bO-4uwFk
Thanks in advance.
-Alex
On Fri, Jan 23, 2015 at 3:46 PM, Mark Ambler
wrote:
> That is correct. Below is the command line I'm using currently as a test.
> Note that the url used in the second input is calling server side code that
> serves up the image file(s). Is there a param to turn off caching of the
> image so
> On Jan 22, 2015, at 12:52 PM, Moritz Barsnick wrote:
>
> On Thu, Jan 22, 2015 at 10:44:01 -0700, jd1008 wrote:
>> I tried with the params: -ac 2 -ar 44.1k -ab 1600k but to no avail.
> [...]
>> Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo,
>> s16, 1411 kb/s
>
On 22/01/15 14:04, Kevin Wells wrote:
> Hi, I am downscaling an HD movie from 1920x1080 to 720x576 and want to make
> sure the color conversion is done correctly, which with my current settings I
> am sure it is not. I am coming from an HD Prores HQ, going to an SD Prores
> HQ.With my current co
On Friday, January 23, 2015 5:24 AM, Werner Robitza
wrote:
On Fri, Jan 23, 2015 at 3:28 AM, Mark wrote:
> Thanks for responding. I'd like to alter the overlay image / watermark based
> on an external condition. So far I've tried pointing the image input to an
> http servlet tha
Am 23.01.2015 um 13:57 schrieb Dave Rice:
On Jan 23, 2015, at 5:23 AM, Christoph Gerstbauer
wrote:
The YDIF value in the signalstats filter could show this.
ffprobe -f lavfi movie=DETECT_CUTS.mov,signalstats -show_entries
"frame_tags=lavfi.signalstats.YDIF” -of flat
Perhaps filter out line
On Jan 23, 2015, at 5:23 AM, Christoph Gerstbauer
wrote:
>> The YDIF value in the signalstats filter could show this.
>> ffprobe -f lavfi movie=DETECT_CUTS.mov,signalstats -show_entries
>> "frame_tags=lavfi.signalstats.YDIF” -of flat
>>
>> Perhaps filter out lines where YDIF is higher than 10
Is there any documentation on how to actually use the dashenc muxer?
More specifically, how multiple representations can be added to an
adaptation set?
Or is it just limited to one video/audio stream at the time?
I would hope that some documentation is added until the next release.
___
On Fri, Jan 23, 2015 at 3:28 AM, Mark wrote:
> Thanks for responding. I'd like to alter the overlay image / watermark based
> on an external condition. So far I've tried pointing the image input to an
> http servlet that will alter the image data. Didn't work as it seems ffmpeg
> caches the
The YDIF value in the signalstats filter could show this.
ffprobe -f lavfi movie=DETECT_CUTS.mov,signalstats -show_entries
"frame_tags=lavfi.signalstats.YDIF” -of flat
Perhaps filter out lines where YDIF is higher than 10.
Hi, that does not work on my machine. (Win7)
Command line output:
C:\
On date Wednesday 2015-01-21 23:04:49 +0100, Dog Film wrote:
> Dear Master Sabatini,
>
> thank you so much, it finally works now. In fact I had a very similar
> solution yesterday and was so sure, that this must be right, I was
> reading the overlay and fade manual entries over and over again, but
I seem to be unable to set a specific profile with either of the
commands as shown below:
rabbit@Ahasver:~$ ffmpeg -hide_banner -y -filter_complex 'color=red' -t
1 -c:v libx265 -strict experimental -profile:v main444-10 -f mp4 /dev/null
[libx265 @ 0x161e240] [Eval @ 0x7fff58510210] Undefined c
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