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niimaq: use standard video caps

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Even though NI-IMAQ can specify 10-, 12-, or 14-bit images, no other standard
element supports it, and in 0.11/1.0 caps are simplified to be gray8/gray16.
We can always add back custom caps if there is a real need for it.
This commit is contained in:
Joshua M. Doe 2012-06-28 14:11:51 -04:00
parent fa883c1ca1
commit 7c251fa83a
2 changed files with 12 additions and 32 deletions
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40
sys/niimaq/gstniimaq.c
View File

@ -908,9 +908,7 @@ gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * niimaqsrc)
Int32 rval; Int32 rval;
uInt32 val; uInt32 val;
gint width, height, depth, bpp; gint width, height, depth, bpp;
GstStructure *gs; GstVideoFormat format = GST_VIDEO_FORMAT_UNKNOWN;
gcaps = gst_caps_new_empty ();
if (!niimaqsrc->iid) { if (!niimaqsrc->iid) {
GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED, GST_ELEMENT_ERROR (niimaqsrc, RESOURCE, FAILED,
@ -939,35 +937,17 @@ gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * niimaqsrc)
goto error; goto error;
} }
/* create new structure and set caps we got from IMAQ */ if (depth == 8)
gs = gst_structure_empty_new ("video/x-raw-gray"); format = GST_VIDEO_FORMAT_GRAY8;
gst_structure_set (gs, else if (depth == 16)
"bpp", G_TYPE_INT, bpp, format = GST_VIDEO_FORMAT_GRAY16_LE;
"depth", G_TYPE_INT, depth, else {
"width", G_TYPE_INT, width, "height", G_TYPE_INT, height, NULL); GST_WARNING_OBJECT (niimaqsrc, "Depth %d not supported yet", depth);
if (depth > 8) { goto error;
gst_structure_set (gs, "endianness", G_TYPE_INT, G_LITTLE_ENDIAN, NULL);
} }
/* hard code framerate to 30Hz as IMAQ doesn't tell us anything about it */ /* hard code framerate and par as IMAQ doesn't tell us anything about it */
GST_DEBUG_OBJECT (niimaqsrc, "Setting framerate to 30 fps"); gcaps = gst_video_format_new_caps (format, width, height, 30, 1, 1, 1);
gst_structure_set (gs, "framerate", GST_TYPE_FRACTION, 30, 1, NULL);
GST_DEBUG_OBJECT (gs, "is the basic structure");
gst_caps_append_structure (gcaps, gst_structure_copy (gs));
/* if (8 < bpp < 16), then append structure with bpp=16 so ffmpegcolorspace
* and other elements can work directly with this src */
if (bpp > 8 && bpp < 16) {
GST_DEBUG_OBJECT (niimaqsrc, "Adding 16bpp caps for compatibility");
gst_structure_set (gs,
"bpp", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN, NULL);
gst_caps_append_structure (gcaps, gst_structure_copy (gs));
}
gst_structure_free (gs);
GST_DEBUG_OBJECT (gcaps, "are the camera caps"); GST_DEBUG_OBJECT (gcaps, "are the camera caps");

2
vs2010/niimaq/niimaq.vcxproj
View File

@ -31,7 +31,7 @@
</ImportGroup> </ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'"> <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" /> <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-base-0.10.props" /> <Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-video-0.10.props" />
<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-interfaces-0.10.props" /> <Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-interfaces-0.10.props" />
<Import Project="niimaq.props" /> <Import Project="niimaq.props" />
</ImportGroup> </ImportGroup>