Using pjsua2/linux with v4l2 usb webcam, the video always seems to be
captured at 4:3 aspect ratio even with a codec size set to 1280x720.
If I specify a codec size of 1280x720, the picture is captured as 4:3
and stretched to fill the window. This on pjsip 2.7.1+openh264 1.6.
The webcam supports 16:9 capture. In v4l2_get_supported_size()
1280x720 is one of the sizes that succeeds. With v4l2-ctl the web cam
shows
YUV
Size: Discrete 1280x720
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.133s (7.500 fps)
Interval: Discrete 0.200s (5.000 fps)
M-JPEG
Size: Discrete 1280x720
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.042s (24.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.133s (7.500 fps)
Interval: Discrete 0.200s (5.000 fps)
Tried a simple capture with cheese at 16:9 1280x720 and it works.
Any idea how to debug why pjsua capture is not occurring at 16:9?
Anthony Alba
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