Hello, downscaling a YUV video from /dev/fb1 silently fails and results in incorrectly rendered data (each line is shifted a bit more to the right, turning vertical lines into diagonals) -- observed with Linux 3.6.11 on omap3/dm3730 test data (an image with vertical bars) is produced by: gst-launch-0.10 videotestsrc ! video/x-raw-yuv, width=400, height=240 ! freeze ! omapfbsink cd /sys/devices/platform/omapdss/overlay1 echo 400,240 > output_size echo 100,100 > position echo 220,140 > output_size this downscales the YUV data from 400x240->220x140 and results in distorted output data (see http://pmeerw.net/overlay-distorted.jpg) note that upscaling works more observations: setting CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=4 results in correct downscaling with x_predecim=1/y_predecim=1 CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0 leads to distorted output with x_predecim=2/y_predecim=1 I think there is a bug downscaling YUV data when resorting to pre-decimation; setting CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK is a workaround -- any ideas how this can be fixed? thanks, regards, p. -- Peter Meerwald +43-664-2444418 (mobile) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
