diff options
| author | Hans de Goede | 2008-07-04 17:55:18 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2008-07-20 07:16:58 -0300 |
| commit | 24c530b4abb979f9e79298f0b4c4e83781a0e4c3 (patch) | |
| tree | 8f96e78399b688efb7eb63024e4ffcca837bf48d /drivers | |
| parent | a5ae2062252e697d38e53dbbeb91460252208914 (diff) | |
V4L/DVB (8196): gspca: Correct sizeimage in vidioc_s/try/g_fmt_cap
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index ad4721b06920..f6d216316b11 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -43,8 +43,8 @@ MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>"); MODULE_DESCRIPTION("GSPCA USB Camera Driver"); MODULE_LICENSE("GPL"); -#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 2) -static const char version[] = "2.1.2"; +#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 4) +static const char version[] = "2.1.4"; static int video_nr = -1; @@ -391,14 +391,20 @@ static __u32 get_v4l2_depth(__u32 pixfmt) return 24; } -static int gspca_get_buff_size(struct gspca_dev *gspca_dev) +static int gspca_get_buff_size(struct gspca_dev *gspca_dev, int mode) { unsigned int size; - size = gspca_dev->width * gspca_dev->height - * get_v4l2_depth(gspca_dev->pixfmt) / 8; + size = gspca_dev->cam.cam_mode[mode].width * + gspca_dev->cam.cam_mode[mode].height * + get_v4l2_depth(gspca_dev->cam.cam_mode[mode].pixfmt) / 8; if (!size) return -ENOMEM; + + /* if compressed (JPEG), reduce the buffer size */ + if (gspca_is_compressed(gspca_dev->cam.cam_mode[mode].pixfmt)) + size = (size * comp_fac) / 100 + 600; /* (+ JPEG header sz) */ + return size; } @@ -409,15 +415,12 @@ static int frame_alloc(struct gspca_dev *gspca_dev, unsigned int frsz; int i; - frsz = gspca_get_buff_size(gspca_dev); + frsz = gspca_get_buff_size(gspca_dev, gspca_dev->curr_mode); if (frsz < 0) return frsz; PDEBUG(D_STREAM, "frame alloc frsz: %d", frsz); if (count > GSPCA_MAX_FRAMES) count = GSPCA_MAX_FRAMES; - /* if compressed (JPEG), reduce the buffer size */ - if (gspca_is_compressed(gspca_dev->pixfmt)) - frsz = (frsz * comp_fac) / 100 + 600; /* (+ JPEG header sz) */ frsz = PAGE_ALIGN(frsz); PDEBUG(D_STREAM, "new fr_sz: %d", frsz); gspca_dev->frsz = frsz; @@ -796,8 +799,8 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, fmt->fmt.pix.field = V4L2_FIELD_NONE; fmt->fmt.pix.bytesperline = get_v4l2_depth(fmt->fmt.pix.pixelformat) * fmt->fmt.pix.width / 8; - fmt->fmt.pix.sizeimage = fmt->fmt.pix.bytesperline - * fmt->fmt.pix.height; + fmt->fmt.pix.sizeimage = gspca_get_buff_size(gspca_dev, + gspca_dev->curr_mode); /* (should be in the subdriver) */ fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; fmt->fmt.pix.priv = 0; @@ -807,7 +810,7 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, static int try_fmt_vid_cap(struct gspca_dev *gspca_dev, struct v4l2_format *fmt) { - int w, h, mode, mode2, frsz; + int w, h, mode, mode2; if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; @@ -849,12 +852,10 @@ static int try_fmt_vid_cap(struct gspca_dev *gspca_dev, } fmt->fmt.pix.width = gspca_dev->cam.cam_mode[mode].width; fmt->fmt.pix.height = gspca_dev->cam.cam_mode[mode].height; + fmt->fmt.pix.field = V4L2_FIELD_NONE; fmt->fmt.pix.bytesperline = get_v4l2_depth(fmt->fmt.pix.pixelformat) * fmt->fmt.pix.width / 8; - frsz = fmt->fmt.pix.bytesperline * fmt->fmt.pix.height; - if (gspca_is_compressed(fmt->fmt.pix.pixelformat)) - frsz = (frsz * comp_fac) / 100; - fmt->fmt.pix.sizeimage = frsz; + fmt->fmt.pix.sizeimage = gspca_get_buff_size(gspca_dev, mode); return mode; /* used when s_fmt */ } |