Hi!
First, I re-did pipeline setup in python, it seems slightly less hacky
then in shell.
I tried to modify fcam-dev to work with the new interface, but was not
successful so far. I can post patches if someone is interested
(mplayer works for me, but that's not too suitable for taking photos).
I tried to get gstreamer to work, with something like:
class Camera:
gst="/usr/bin/gst-launch"
def __init__(m):
pass
def run(m):
if 0 != subprocess.call(
[m.gst, "-v", "--gst-debug-level=2",
# "v4l2src", "device=/dev/video2", "num-buffers=3", "!",
# "video/x-raw-yuv,width=864,height=656", "!",
"v4l2src", "device=/dev/video6", "num-buffers=3", "!",
"video/x-raw-yuv,width=800,height=600,format=(fourcc)UYVY", "!",
# ,format=(fourcc)YU12
"ffmpegcolorspace", "!",
"jpegenc", "!",
"filesink", "location=delme.jpg" ]):
But could not get it to work so far.
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
#!/usr/bin/python3
import subprocess
import os
class Camera:
mc="/my/v4l-utils/utils/media-ctl/media-ctl"
def __init__(m):
m.win_x, m.win_y = 800, 600
m.cap_x, m.cap_y = 864, 656
#m.cap_x, m.cap_y = 2592, 1968
def media_ctl(m, s):
if 0 != subprocess.call(['sudo', m.mc] + s):
print("Call ", s, " failed?")
def media_l(m, s):
m.media_ctl(['-l', s])
def media_v(m, s):
m.media_ctl(['-V', s])
def back(m):
m.media_ctl(['-r'])
m.media_l('"et8ek8 3-003e":0 -> "video-bus-switch":1 [1]')
m.media_l('"video-bus-switch":0 -> "OMAP3 ISP CCP2":0 [1]')
m.media_l('"OMAP3 ISP CCP2":1 -> "OMAP3 ISP CCDC":0 [1]')
m.media_l('"OMAP3 ISP CCDC":2 -> "OMAP3 ISP preview":0 [1]')
m.media_l('"OMAP3 ISP preview":1 -> "OMAP3 ISP resizer":0 [1]')
m.media_l('"OMAP3 ISP resizer":1 -> "OMAP3 ISP resizer output":0 [1]')
size = "%dx%d" % (m.cap_x, m.cap_y)
m.media_v('"et8ek8 3-003e":0 [SGRBG10 %s]' % size)
m.media_v('"OMAP3 ISP CCP2":0 [SGRBG10 %s]' % size)
m.media_v('"OMAP3 ISP CCP2":1 [SGRBG10 %s]' % size)
m.media_v('"OMAP3 ISP CCDC":2 [SGRBG10 %s]' % size)
m.media_v('"OMAP3 ISP preview":1 [UYVY %s]' % size)
m.media_v('"OMAP3 ISP resizer":1 [UYVY %dx%d]' % (m.win_x, m.win_y))
def perms(m):
os.system("sudo chmod 666 /dev/video? /dev/v4l-subdev*")
def run(m):
os.system("mplayer -tv driver=v4l2:width=%d:height=%d:outfmt=uyvy:device=/dev/video6 -vo x11 -vf screenshot tv://" % (m.win_x, m.win_y))
c = Camera()
c.back()
c.perms()
c.run()
