Re: [libdc] jpeg compression mode Ladybug3

[Gaurav P. <pg...@um...>]

Gaurav Pandey wrote:
> Hi ,
>
> I was trying to use the example code in libdc1394 library to set the 
> jpeg compression mode for ladybug3 but its returning with the 
> following error in the function dc1394_format7_set_roi() -:
>
> libdc1394 error: Format_7 Error_flag_1 is set: in 
> _dc1394_v130_handshake (format7.c, line 122): invalid image position, 
> size, color coding or ISO speed
>
> libdc1394 error: Format_7 Error_flag_1 is set: in 
> dc1394_format7_set_roi (format7.c, line 803): Handshaking failed after 
> setting color_coding
>
> In the example code some fixed values have been passed as parameters 
> to this function, may be I have to pass different values for ladybug3 
> but how can I know these values for my camera.
>
> Thanks and regards
> Gaurav Pandey
>
>
Hi,

Instead of using dc1394_format7_set_roi() I used 
dc1394_format7_get/set_image_size() and 
dc1394_format7_get/set_packet_size() and they are working fine. So now I 
can set the image size and packet size correctly but when I call 
dc1394_capture_setup() it fails with the following error -:

libdc1394 error: VIDEO1394_IOC_LISTEN_CHANNEL ioctl failed: Invalid argument
libdc1394 error: Error: Failed to setup DMA capture

Thanks and regards

Gaurav Pandey