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authorHans Verkuil <hverkuil@xs4all.nl>2009-02-18 17:11:17 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:42:56 -0300
commit0ba514d5d39d017e320ffba6d2a98563b829d37c (patch)
tree20ea0f4a59e71f1864620f676057019acd2d16fe /drivers/media/video/zoran/zoran_card.c
parent7f37cc9bae7aa29d567460c3ac8178d587f710bc (diff)
V4L/DVB (10711): zoran: fix TRY_FMT support
Actually try to turn the format into something usable rather than just rejecting it if it isn't perfect. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/zoran/zoran_card.c')
-rw-r--r--drivers/media/video/zoran/zoran_card.c63
1 files changed, 45 insertions, 18 deletions
diff --git a/drivers/media/video/zoran/zoran_card.c b/drivers/media/video/zoran/zoran_card.c
index 18834b18435..774717bf43c 100644
--- a/drivers/media/video/zoran/zoran_card.c
+++ b/drivers/media/video/zoran/zoran_card.c
@@ -835,7 +835,8 @@ zoran_unregister_i2c (struct zoran *zr)
int
zoran_check_jpg_settings (struct zoran *zr,
- struct zoran_jpg_settings *settings)
+ struct zoran_jpg_settings *settings,
+ int try)
{
int err = 0, err0 = 0;
@@ -900,35 +901,61 @@ zoran_check_jpg_settings (struct zoran *zr,
/* We have to check the data the user has set */
if (settings->HorDcm != 1 && settings->HorDcm != 2 &&
- (zr->card.type == DC10_new || settings->HorDcm != 4))
+ (zr->card.type == DC10_new || settings->HorDcm != 4)) {
+ settings->HorDcm = clamp(settings->HorDcm, 1, 2);
err0++;
- if (settings->VerDcm != 1 && settings->VerDcm != 2)
+ }
+ if (settings->VerDcm != 1 && settings->VerDcm != 2) {
+ settings->VerDcm = clamp(settings->VerDcm, 1, 2);
err0++;
- if (settings->TmpDcm != 1 && settings->TmpDcm != 2)
+ }
+ if (settings->TmpDcm != 1 && settings->TmpDcm != 2) {
+ settings->TmpDcm = clamp(settings->TmpDcm, 1, 2);
err0++;
+ }
if (settings->field_per_buff != 1 &&
- settings->field_per_buff != 2)
+ settings->field_per_buff != 2) {
+ settings->field_per_buff = clamp(settings->field_per_buff, 1, 2);
err0++;
- if (settings->img_x < 0)
+ }
+ if (settings->img_x < 0) {
+ settings->img_x = 0;
err0++;
- if (settings->img_y < 0)
+ }
+ if (settings->img_y < 0) {
+ settings->img_y = 0;
err0++;
- if (settings->img_width < 0)
+ }
+ if (settings->img_width < 0 || settings->img_width > BUZ_MAX_WIDTH) {
+ settings->img_width = clamp(settings->img_width, 0, (int)BUZ_MAX_WIDTH);
err0++;
- if (settings->img_height < 0)
+ }
+ if (settings->img_height < 0 || settings->img_height > BUZ_MAX_HEIGHT / 2) {
+ settings->img_height = clamp(settings->img_height, 0, BUZ_MAX_HEIGHT / 2);
err0++;
- if (settings->img_x + settings->img_width > BUZ_MAX_WIDTH)
+ }
+ if (settings->img_x + settings->img_width > BUZ_MAX_WIDTH) {
+ settings->img_x = BUZ_MAX_WIDTH - settings->img_width;
+ err0++;
+ }
+ if (settings->img_y + settings->img_height > BUZ_MAX_HEIGHT / 2) {
+ settings->img_y = BUZ_MAX_HEIGHT / 2 - settings->img_height;
err0++;
- if (settings->img_y + settings->img_height > BUZ_MAX_HEIGHT / 2)
+ }
+ if (settings->img_width % (16 * settings->HorDcm) != 0) {
+ settings->img_width -= settings->img_width % (16 * settings->HorDcm);
+ if (settings->img_width == 0)
+ settings->img_width = 16 * settings->HorDcm;
+ err0++;
+ }
+ if (settings->img_height % (8 * settings->VerDcm) != 0) {
+ settings->img_height -= settings->img_height % (8 * settings->VerDcm);
+ if (settings->img_height == 0)
+ settings->img_height = 8 * settings->VerDcm;
err0++;
- if (settings->HorDcm && settings->VerDcm) {
- if (settings->img_width % (16 * settings->HorDcm) != 0)
- err0++;
- if (settings->img_height % (8 * settings->VerDcm) != 0)
- err0++;
}
- if (err0) {
+ if (!try && err0) {
dprintk(1,
KERN_ERR
"%s: check_jpg_settings() - error in params for decimation = 0\n",
@@ -1018,7 +1045,7 @@ zoran_open_init_params (struct zoran *zr)
sizeof(zr->jpg_settings.jpg_comp.COM_data));
zr->jpg_settings.jpg_comp.jpeg_markers =
JPEG_MARKER_DHT | JPEG_MARKER_DQT;
- i = zoran_check_jpg_settings(zr, &zr->jpg_settings);
+ i = zoran_check_jpg_settings(zr, &zr->jpg_settings, 0);
if (i)
dprintk(1,
KERN_ERR