[media] bttv: fix field handling inside TRY_FMT
- don't return -EINVAL for invalid field types, handle those as if it was FIELD_ANY. - the handling of FIELD_SEQ_BT/TB was wrong as well: if such field formats aren't supported, then fall back to FIELD_ANY instead of returning an error. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -2530,6 +2530,7 @@ static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
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struct bttv *btv = fh->btv;
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enum v4l2_field field;
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__s32 width, height;
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__s32 height2;
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int rc;
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fmt = format_by_fourcc(f->fmt.pix.pixelformat);
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@ -2538,30 +2539,25 @@ static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
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field = f->fmt.pix.field;
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if (V4L2_FIELD_ANY == field) {
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__s32 height2;
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height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
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field = (f->fmt.pix.height > height2)
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? V4L2_FIELD_INTERLACED
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: V4L2_FIELD_BOTTOM;
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}
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if (V4L2_FIELD_SEQ_BT == field)
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field = V4L2_FIELD_SEQ_TB;
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switch (field) {
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case V4L2_FIELD_TOP:
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case V4L2_FIELD_BOTTOM:
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case V4L2_FIELD_ALTERNATE:
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case V4L2_FIELD_INTERLACED:
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break;
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case V4L2_FIELD_SEQ_BT:
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case V4L2_FIELD_SEQ_TB:
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if (fmt->flags & FORMAT_FLAGS_PLANAR)
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return -EINVAL;
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if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) {
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field = V4L2_FIELD_SEQ_TB;
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break;
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}
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/* fall through */
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default: /* FIELD_ANY case */
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height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
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field = (f->fmt.pix.height > height2)
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? V4L2_FIELD_INTERLACED
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: V4L2_FIELD_BOTTOM;
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break;
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default:
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return -EINVAL;
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}
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width = f->fmt.pix.width;
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