Cannot capture video with Nikkon D5000/D5100 on Rasbian system

Greetings to all

I have run into problems trying to capture video on a Nikkon D5000/D5100
with gphoto on a Rasberry Pi and I was wondering if any fellow user can
offer some help on the matter. Keep in mind that I can capture images
without any problem on both cameras (and other Nikkon models as well e.g
D70)

I am trying to shoot video using the following gphoto2 command which i have
seen in several tutorials/forums on the internet:

/gphoto2 --debug --port=usb:001,017 --set-config movie=1 --wait-event=5s
--set-config movie=0 --wait-event-and-download=2s --filename=test.avi
--force-overwrite/

and the following events happen:

1. I get the message "Invalid Status" on screen
2. I can hear the shutter of the camera open
3. The following lines appear on-screen

/Waiting for 5 seconds for events from camera. Press Ctrl-C to abort.
UNKNOWN PTP Property d1a2 changed
UNKNOWN PTP Property d1b1 changed
UNKNOWN PTP Property d1b1 changed
UNKNOWN PTP Property d1b1 changed
Waiting for 2 seconds for events from camera. Press Ctrl-C to abort./

4. I can hear the shutter of the camera close.

The time between the shutter openings appears to correspond to the time
setting in my command but of course no movie file is created.

Following some more tests I have found the following:

1. The "Invalid status" error appears even if my command is only /gphoto2
--debug --port=usb:001,017 --set-config movie=1/  

2. Following a list-all-config command I have found the "movie" setting on
the camera but I can see that the current setting is "2" even though it has
type "TOGGLE" so I expected a 1 or a 0 - I do not understand what that
means. In any case if I try to use a different value than 1 or 0 in the
*--set-config movie * I get a value error so it appears that only these are
the accepted values

I have also produced a full debug trace which is too long to post here but I
am pasting the part where the error appears:


/0.458704 ptp_usb_getresp             (2): Reading PTP_OC 0x920a
(PTP_OC_NIKON_StartMovieRecInCard) response...
0.458721 gp_port_read                (3): Reading 1024 = 0x400 bytes from
port...
0.458835 gp_port_read                (3): Read    12 = 0xc out of 1024 bytes
from port: (hexdump of 12 bytes)
0000  0c 00 00 00 03 00 04 a0-0d 00 00 00              ............    

0.458858 ptp_usb_getresp [usb.c:438] (0): PTP_OC 0x920a receiving resp
failed: Invalid Status (0xa004)
0.458880 _put_Nikon_Movie [config.c:5872](0): 'ptp_nikon_startmovie
(params)' failed: 'Invalid Status' (0xa004)
0.458925 gp_context_error            (0): Invalid Status

*** Error ***              
Invalid Status
0.459136 camera_wait_for_event       (2): waiting for events timeout 1000 ms
0.459168 ptp_usb_sendreq             (2): Sending PTP_OC 0x90c7
(PTP_OC_NIKON_CheckEvent) request...
0.459185 gp_port_write               (3): Writing 12 = 0xc bytes to port...
0.459256 gp_port_write               (3): Wrote   12 = 0xc bytes to port:
(hexdump of 12 bytes)
0000  0c 00 00 00 01 00 c7 90-0e 00 00 00              ............    /

Lastly I post my gphoto2 version details:

/0.000892 main                        (2): gphoto2 2.5.10
0.000973 main                        (2): gphoto2 has been compiled with the
following options:
0.001009 main                        (2):  + gcc (C compiler used)
0.001045 main                        (2):  + popt (mandatory, for handling
command-line parameters)
0.001077 main                        (2):  + exif (for displaying EXIF
information)
0.001112 main                        (2):  + no cdk (for accessing
configuration options)
0.001142 main                        (2):  + no aa (for displaying live
previews)
0.001174 main                        (2):  + jpeg (for displaying live
previews in JPEG format)
0.001204 main                        (2):  + no readline (for easy
navigation in the shell)/


Any assistance on the problem would be greatly appreciated

Thanks!




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