Hello
i am trying to change options in the crop filter at runtime with a command
this it my test command:
./ffmpeg -hide_banner -y -f dshow -rtbufsize 128M -i video="Cam Link 4K"
-filter_complex "[0:v]fps=10[rate], [rate]scale=1280:720, crop=in_w,
drawtext=fontfile=RobotoMono-Medium.ttf: text=\'test\': fontsize=50:
fontcolor=white: box=1: boxcolor=black@0.5: boxborderw=5" -update 1
public\img.png
it works and returns:
Input #0, dshow, from 'video=Cam Link 4K':
Duration: N/A, start: 136428.863000, bitrate: N/A
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 60
fps, 60 tbr, 10000k tbn
Stream mapping:
Stream #0:0 (rawvideo) -> fps
drawtext -> Stream #0:0 (png)
Press [q] to stop, [?] for help
Output #0, image2, to 'public\img.png':
Metadata:
encoder : Lavf59.3.101
Stream #0:0: Video: png, rgb24(pc, progressive), 1280x720, q=2-31, 200
kb/s, 10 fps, 10 tbn
Metadata:
encoder : Lavc59.2.100 png
then sending:
c crop -1 w=100
the retun is:
Command reply for stream 0: ret:-40 res:
and nothing changes
instead trying:
c drawtext -1 reinit fontcolor=red
the retun is:
Command reply for stream 0: ret:0 res:
and the text turns red
what am i missing?
--
Bedste hilsner / Best regards
Alex
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