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V4L/DVB (8921): ivtv: fix incorrect capability and assorted sliced vbi and video out fmt fixes

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- V4L2_CAP_VBI_OUTPUT is not supported by ivtv, remove it.
- ivtv_try_fmt_vid_out also needed to constrain the width/height of MPEG decoder
  window sizes.
- allow empty sliced services.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2008-09-06 09:56:17 -03:00 committed by Mauro Carvalho Chehab
parent effc3466d3
commit 854ad9abcc
2 changed files with 10 additions and 14 deletions
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2
drivers/media/video/ivtv/ivtv-cards.h
View File

@ -154,7 +154,7 @@
#define IVTV_CAP_ENCODER (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | \
V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE | \
V4L2_CAP_SLICED_VBI_CAPTURE)
#define IVTV_CAP_DECODER (V4L2_CAP_VBI_OUTPUT | V4L2_CAP_VIDEO_OUTPUT | \
#define IVTV_CAP_DECODER (V4L2_CAP_VIDEO_OUTPUT | \
V4L2_CAP_SLICED_VBI_OUTPUT | V4L2_CAP_VIDEO_OUTPUT_OVERLAY)
struct ivtv_card_video_input {

18
drivers/media/video/ivtv/ivtv-ioctl.c
View File

@ -101,18 +101,15 @@ void ivtv_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
}
}
static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
static void check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
{
int f, l;
u16 set = 0;
for (f = 0; f < 2; f++) {
for (l = 0; l < 24; l++) {
fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
set |= fmt->service_lines[f][l];
}
}
return set != 0;
}
u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt)
@ -474,7 +471,7 @@ static int ivtv_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format
int h = fmt->fmt.pix.height;
w = min(w, 720);
w = max(w, 1);
w = max(w, 2);
h = min(h, itv->is_50hz ? 576 : 480);
h = max(h, 2);
ivtv_g_fmt_vid_cap(file, fh, fmt);
@ -512,18 +509,18 @@ static int ivtv_try_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_
static int ivtv_try_fmt_vid_out(struct file *file, void *fh, struct v4l2_format *fmt)
{
struct ivtv_open_id *id = fh;
struct ivtv *itv = id->itv;
s32 w = fmt->fmt.pix.width;
s32 h = fmt->fmt.pix.height;
int field = fmt->fmt.pix.field;
int ret = ivtv_g_fmt_vid_out(file, fh, fmt);
if (!ret && id->type == IVTV_DEC_STREAM_TYPE_YUV) {
fmt->fmt.pix.field = field;
w = min(w, 720);
w = max(w, 2);
h = min(h, 576);
h = min(h, itv->is_out_50hz ? 576 : 480);
h = max(h, 2);
}
if (id->type == IVTV_DEC_STREAM_TYPE_YUV)
fmt->fmt.pix.field = field;
fmt->fmt.pix.width = w;
fmt->fmt.pix.height = h;
return ret;
@ -593,8 +590,7 @@ static int ivtv_s_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_fo
if (ret || id->type == IVTV_DEC_STREAM_TYPE_VBI)
return ret;
if (check_service_set(vbifmt, itv->is_50hz) == 0)
return -EINVAL;
check_service_set(vbifmt, itv->is_50hz);
if (atomic_read(&itv->capturing) > 0)
return -EBUSY;
itv->video_dec_func(itv, VIDIOC_S_FMT, fmt);