-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Hans, I'm trying to get gstreamer and the yuv420 format conversion in libv4l to play nice with the gspca-stv06xx driver. Currently this is not working. The resolution of the vv6410 sensor is 356*292 pixels and the native format of the camera is V4L2_PIX_FMT_SGRBG8. This produces a total image size of 103952 bytes which gets page aligned to 106496. When requesting to conversion to yuv420 in gstreamer I launch gst-launch with the following parameters: gst-launch-0.10 -v v4l2src queue-size=4 ! ffmpegcolorspace ! xvimageink gstreamer then proceeds with complaining that it received a frame of size 155928 bytes but it expected a frame of size 156512 bytes. The delivered 155928 size seems sane as 155928 / 356 gives 438 and 155928 / 292 gives 534. Furthermore, the difference between the received size and the expected size is 584 bytes which is 2x the height. Anyhow, I hacked libv4l2.c and padded the frame with 584 in order to acheive the requested 156512 bytes. This worked and yielded the attached image. I'm currently at loss what's the root cause of this. Could the page align interfer somehow with the frame size? What's the correct image size? The converted image is clearly correct. Hans, do you have any ideas on how to further debug this issue? RGB images work as intended although they need to be whitebalanced. Thanks, Erik -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAknH5aEACgkQN7qBt+4UG0EQGgCcDdOEhW9Wz/TvU6kGtF3iRJDK ID0An1V+bxCX5zKzBQ1n5L7q1j2dg0Dp =EegQ -----END PGP SIGNATURE-----
