Re: [FFmpeg-user] delay time in live ultrasound converter

2019-08-22 Thread Michael Koch
Hello Paul, ffplay and using pipe gives you huge delay. By using mpv and filtergraph directly you would get much lesser delay. Default delay introduced by this filter is the one set by win_size in number of samples, which is by default 4096. If you need less delay even than this one and can not

Re: [FFmpeg-user] problem with trying maths in a filter

2019-08-22 Thread Nicolas George
Carl Zwanzig (12019-08-22): > But is it really broken? Yes, but not that way. > Using the same separator for different purposes > might be bad design, but almost any change is probably worse. There is a solution, but it requires a global approach to options parsing, and

Re: [FFmpeg-user] problem with trying maths in a filter

2019-08-22 Thread Julian Gardner
--- BR Joolz On 2019-08-22 17:50, Carl Zwanzig wrote: On 8/22/2019 12:05 AM, Julian Gardner wrote: Maybe i should look at the eval code and fix it But is it really broken? Using the same separator for different purposes might be bad design, but almost any change is probably worse.

Re: [FFmpeg-user] delay time in live ultrasound converter

2019-08-22 Thread Paul B Mahol
On Thu, Aug 22, 2019 at 7:07 PM Michael Koch wrote: > Hello, > > I'm using the following batch file (Windows 7) for a live ultrasound > conversion. > > set "SR=44100" :: Sample rate > set "F=14000" :: Subtracted frequency > set "VOL=10" :: Volume factor >

Re: [FFmpeg-user] problem with trying maths in a filter

2019-08-22 Thread Julian Gardner
--- BR Joolz On 2019-08-22 17:50, Carl Zwanzig wrote: On 8/22/2019 12:05 AM, Julian Gardner wrote: Maybe i should look at the eval code and fix it But is it really broken? Using the same separator for different purposes might be bad design, but almost any change is probably worse.

[FFmpeg-user] delay time in live ultrasound converter

2019-08-22 Thread Michael Koch
Hello, I'm using the following batch file (Windows 7) for a live ultrasound conversion. set "SR=44100" :: Sample rate set "F=14000"  :: Subtracted frequency set "VOL=10"   :: Volume factor set /a "N=4096*%F%/%SR%"   :: N = 4096 * F / SR c:\ffmpeg\ffmpeg -f

Re: [FFmpeg-user] problem with trying maths in a filter

2019-08-22 Thread Carl Zwanzig
On 8/22/2019 12:05 AM, Julian Gardner wrote: Maybe i should look at the eval code and fix it But is it really broken? Using the same separator for different purposes might be bad design, but almost any change is probably worse. (please don't top-post) Later, z!

Re: [FFmpeg-user] UNABLE TO READ RTSP FROM IP CAMERA

2019-08-22 Thread Moritz Barsnick
On Wed, Aug 21, 2019 at 17:32:09 +, Alejandro Escudero wrote: > Unable to open RTSP for listening > > C:\Users\User\Desktop\ejemplosffmpeg>ffmpeg -rtsp_flags listen -i > "rtsp://admin:password@192.168.0.103:554/cam/realmonitor?channel=1=0" Why are you listening? Is the camera streaming to

Re: [FFmpeg-user] problem with trying maths in a filter

2019-08-22 Thread Julian Gardner
Thanks for that, works now. Maybe i should look at the eval code and fix it --- BR Joolz On 2019-08-22 00:24, James Darnley wrote: On 2019-08-21 23:44, Julian Gardner wrote: tried a few versions on varying machines but cant get this work, so can someone help me as to why these filters