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v4l2: fix gray format, use filter in getcaps

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This commit is contained in:
Wim Taymans 2011-07-08 16:37:11 +02:00
parent 7a296af37f
commit 3b4afcb8df
2 changed files with 34 additions and 30 deletions
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14
sys/v4l2/gstv4l2object.c
View file

@ -1149,10 +1149,6 @@ gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc)
case V4L2_PIX_FMT_JPEG: /* JFIF JPEG */
structure = gst_structure_new ("image/jpeg", NULL);
break;
case V4L2_PIX_FMT_GREY: /* 8 Greyscale */
structure = gst_structure_new ("video/x-raw-gray",
"bpp", G_TYPE_INT, 8, NULL);
break;
case V4L2_PIX_FMT_YYUV: /* 16 YUV 4:2:2 */
case V4L2_PIX_FMT_HI240: /* 8 8-bit color */
/* FIXME: get correct fourccs here */
@ -1162,6 +1158,7 @@ gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc)
case V4L2_PIX_FMT_RGB565X:
/* FIXME: get correct fourccs here */
break;
case V4L2_PIX_FMT_GREY: /* 8 Greyscale */
case V4L2_PIX_FMT_RGB555:
case V4L2_PIX_FMT_RGB565:
case V4L2_PIX_FMT_RGB24:
@ -1187,6 +1184,9 @@ gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc)
GstVideoFormat format;
switch (fourcc) {
case V4L2_PIX_FMT_GREY: /* 8 Greyscale */
format = GST_VIDEO_FORMAT_GRAY8;
break;
case V4L2_PIX_FMT_RGB555:
format = GST_VIDEO_FORMAT_RGB15;
break;
@ -1450,6 +1450,8 @@ gst_v4l2_object_get_caps_info (GstV4l2Object * v4l2object, GstCaps * caps,
case GST_VIDEO_FORMAT_BGRA:
fourcc = V4L2_PIX_FMT_BGR32;
break;
case GST_VIDEO_FORMAT_GRAY8:
fourcc = V4L2_PIX_FMT_GREY;
default:
break;
}
@ -1472,10 +1474,8 @@ gst_v4l2_object_get_caps_info (GstV4l2Object * v4l2object, GstCaps * caps,
#ifdef V4L2_PIX_FMT_PWC2
} else if (strcmp (mimetype, "video/x-pwc2") == 0) {
fourcc = V4L2_PIX_FMT_PWC2;
#endif
} else if (strcmp (mimetype, "video/x-raw-gray") == 0) {
fourcc = V4L2_PIX_FMT_GREY;
}
#endif
if (fourcc == 0)
goto unhandled_format;

50
sys/v4l2/gstv4l2sink.c
View file

@ -568,40 +568,44 @@ gst_v4l2sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
(v4l2sink)));
}
if (v4l2sink->probed_caps) {
LOG_CAPS (v4l2sink, v4l2sink->probed_caps);
return gst_caps_ref (v4l2sink->probed_caps);
}
if (v4l2sink->probed_caps == NULL) {
formats = gst_v4l2_object_get_format_list (v4l2sink->v4l2object);
formats = gst_v4l2_object_get_format_list (v4l2sink->v4l2object);
ret = gst_caps_new_empty ();
ret = gst_caps_new_empty ();
for (walk = formats; walk; walk = walk->next) {
struct v4l2_fmtdesc *format;
for (walk = formats; walk; walk = walk->next) {
struct v4l2_fmtdesc *format;
GstStructure *template;
GstStructure *template;
format = (struct v4l2_fmtdesc *) walk->data;
format = (struct v4l2_fmtdesc *) walk->data;
template = gst_v4l2_object_v4l2fourcc_to_structure (format->pixelformat);
template = gst_v4l2_object_v4l2fourcc_to_structure (format->pixelformat);
if (template) {
GstCaps *tmp;
if (template) {
GstCaps *tmp;
tmp =
gst_v4l2_object_probe_caps_for_format (v4l2sink->v4l2object,
format->pixelformat, template);
if (tmp)
gst_caps_append (ret, tmp);
tmp =
gst_v4l2_object_probe_caps_for_format (v4l2sink->v4l2object,
format->pixelformat, template);
if (tmp)
gst_caps_append (ret, tmp);
gst_structure_free (template);
} else {
GST_DEBUG_OBJECT (v4l2sink, "unknown format %u", format->pixelformat);
gst_structure_free (template);
} else {
GST_DEBUG_OBJECT (v4l2sink, "unknown format %u", format->pixelformat);
}
}
v4l2sink->probed_caps = ret;
}
v4l2sink->probed_caps = gst_caps_ref (ret);
if (filter) {
ret =
gst_caps_intersect_full (filter, v4l2sink->probed_caps,
GST_CAPS_INTERSECT_FIRST);
} else {
ret = gst_caps_ref (v4l2sink->probed_caps);
}
GST_INFO_OBJECT (v4l2sink, "probed caps: %p", ret);
LOG_CAPS (v4l2sink, ret);