From: Trent Piepho Date: Tue, 17 Jul 2007 21:29:43 +0000 (-0300) Subject: V4L/DVB (5888): zr36067: Driver was not returning correct image size X-Git-Tag: v2.6.23-rc2~153^2~12 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb2e033913f14b2f9f6745e206c3ea5df481b4fd;p=linux-2.6 V4L/DVB (5888): zr36067: Driver was not returning correct image size The driver was returning the size of the (fixed) buffer it allocated as the sizeimage field in the v4l2 pixel format, rather than the actual size of the image. For example, a 192x128 YUYV image is 49152 bytes but the driver would always return 131072 bytes since if that was the size of the v4l buffer. This violates the v4l2 spec, which says that sizeimage should be the actual size of the image for uncompressed formats. It also caused mplayer to crash. Signed-off-by: Trent Piepho Acked-by: Ronald S. Bultje Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c index 37e25c2527..0644631156 100644 --- a/drivers/media/video/zoran_driver.c +++ b/drivers/media/video/zoran_driver.c @@ -2737,7 +2737,8 @@ zoran_do_ioctl (struct inode *inode, fmt->fmt.pix.height = fh->v4l_settings.height; fmt->fmt.pix.sizeimage = - fh->v4l_buffers.buffer_size; + fh->v4l_settings.bytesperline * + fh->v4l_settings.height; fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc; fmt->fmt.pix.colorspace = @@ -2984,8 +2985,9 @@ zoran_do_ioctl (struct inode *inode, /* tell the user the * results/missing stuff */ - fmt->fmt.pix.sizeimage = fh->v4l_buffers.buffer_size /*zr->gbpl * zr->gheight */ - ; + fmt->fmt.pix.sizeimage = + fh->v4l_settings.height * + fh->v4l_settings.bytesperline; if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2)) fmt->fmt.pix.field =