Figured it out finally.
The Hauppauge 2250 (SAA7164 chip), has two tuners, each with dvb/analog
TV/composite/svideo inputs. The exact inputs need to be specied, else without
specifying, using ffmpeg on simply "Hauppauge WinTV-7164 Analog Capture" will
produce random results with inputs, inclu
Hi,
ffprobe / ffmpeg can show a video's avg. bitrate easily enough but I would
like the option for ffmpeg to scan an entire video file (if need be, I
don't think this info is stored anywhere) to find out the lowest (min)
bitrate of a video stream as well as the highest (max) bitrate it uses and
pr
On Tue, 3 May 2022 at 15:13, KoreanFanOfficial
wrote:
>
> ffmpeg -y -vsync 0 -r 25 -video_size 1920x1080 -f x11grab -i :0 -f alsa -i
> default -vf 'scale=1280x720,format=nv12' -c:v libx264 -preset ultrafast
> -profile baseline -sws_flags fast_bilinear -b:v 4500k -maxrate 4500k
> -minrate 4500k -bu
I've found, after searching Google, the following on Linux pulls the entire
video+audio stream successfully:
$ cat /dev/video0 | ffplay -
or,
$ ffmpeg -i file:/dev/video0
Now to see if doing so within Windows does the same, likely omitting the "-f
dshow", similar to omitting the "-f v4l2" on
ffmpeg -y -vsync 0 -r 25 -video_size 1920x1080 -f x11grab -i :0 -f alsa -i
default -vf 'scale=1280x720,format=nv12' -c:v libx264 -preset ultrafast
-profile baseline -sws_flags fast_bilinear -b:v 4500k -maxrate 4500k
-minrate 4500k -bufsize 4500k -c:a aac -b:a 96k -f flv soft.flv
this is my default
Sent from my iPhone
> On 3 May 2022, at 06:10, KoreanFanOfficial
> wrote:
>
> How i can use those option for desktop record/streaming with software
> encoder, cant find working ffmpeg code
Could you please give a sample command line that does not use them.
I am assuming that you just want
