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niimaq: simplify caps format handling

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This commit is contained in:
Joshua M. Doe 2012-06-14 13:27:25 -04:00
parent 2296c487ae
commit e5a4257891
1 changed files with 14 additions and 60 deletions
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74
sys/niimaq/gstniimaq.c
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@ -36,13 +36,14 @@
#include "config.h" #include "config.h"
#endif #endif
#include "gst/interfaces/propertyprobe.h"
#include "gstniimaq.h" #include "gstniimaq.h"
#include <time.h> #include <time.h>
#include <string.h> #include <string.h>
#include <gst/interfaces/propertyprobe.h>
#include <gst/video/video.h>
GST_DEBUG_CATEGORY (niimaqsrc_debug); GST_DEBUG_CATEGORY (niimaqsrc_debug);
#define GST_CAT_DEFAULT niimaqsrc_debug #define GST_CAT_DEFAULT niimaqsrc_debug
@ -111,11 +112,6 @@ static GstFlowReturn gst_niimaqsrc_create (GstPushSrc * psrc,
static gboolean gst_niimaqsrc_parse_caps (const GstCaps * caps, static gboolean gst_niimaqsrc_parse_caps (const GstCaps * caps,
gint * width, gint * height, gint * depth, gint * bpp); gint * width, gint * height, gint * depth, gint * bpp);
static gboolean gst_niimaqsrc_set_caps_color (GstStructure * gs, gint bpp,
gint depth);
static gboolean gst_niimaqsrc_set_caps_framesize (GstStructure * gs, gint width,
gint height);
static GstCaps *gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * src); static GstCaps *gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * src);
static void gst_niimaqsrc_close_interface (GstNiImaqSrc * niimaqsrc); static void gst_niimaqsrc_close_interface (GstNiImaqSrc * niimaqsrc);
@ -877,50 +873,6 @@ gst_niimaqsrc_parse_caps (const GstCaps * caps, gint * width, gint * height,
return TRUE; return TRUE;
} }
/**
* gst_niimaqsrc_set_caps_color:
* gs: a #GstStructure to set the color of.
* bpp: the bits per pixel to set.
* depth: the depth to set.
*
* Sets the given bpp and depth to the given #GstStructure.
*
* Returns: TRUE on success
*/
static gboolean
gst_niimaqsrc_set_caps_color (GstStructure * gs, gint bpp, gint depth)
{
gboolean ret = TRUE;
gst_structure_set_name (gs, "video/x-raw-gray");
gst_structure_set (gs,
"bpp", G_TYPE_INT, bpp, "depth", G_TYPE_INT, depth, NULL);
if (depth > 8) {
gst_structure_set (gs, "endianness", G_TYPE_INT, G_LITTLE_ENDIAN, NULL);
}
return ret;
}
/**
* gst_niimaqsrc_set_caps_framesize:
* gs: #GstStructure
* width: width to set
* height: height to set
*
* Sets the given width and height to the given #GstStructure
*
* Returns: TRUE on success
*/
static gboolean
gst_niimaqsrc_set_caps_framesize (GstStructure * gs, gint width, gint height)
{
gst_structure_set (gs,
"width", G_TYPE_INT, width, "height", G_TYPE_INT, height, NULL);
return TRUE;
}
/** /**
* gst_niimaqsrc_get_cam_caps: * gst_niimaqsrc_get_cam_caps:
* src: #GstNiImaq instance * src: #GstNiImaq instance
@ -968,14 +920,13 @@ gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * niimaqsrc)
} }
/* create new structure and set caps we got from IMAQ */ /* create new structure and set caps we got from IMAQ */
gs = gst_structure_empty_new ("video"); gs = gst_structure_empty_new ("video/x-raw-gray");
if (!gst_niimaqsrc_set_caps_color (gs, bpp, depth) || gst_structure_set (gs,
!gst_niimaqsrc_set_caps_framesize (gs, width, height)) { "bpp", G_TYPE_INT, bpp,
GST_ELEMENT_ERROR (niimaqsrc, STREAM, FAILED, "depth", G_TYPE_INT, depth,
("attempt to set caps %dx%dx%d (%d) failed", width, height, depth, bpp), "width", G_TYPE_INT, width, "height", G_TYPE_INT, height, NULL);
("attempt to set caps %dx%dx%d (%d) failed", width, height, depth, if (depth > 8) {
bpp)); gst_structure_set (gs, "endianness", G_TYPE_INT, G_LITTLE_ENDIAN, NULL);
goto error;
} }
/* hard code framerate to 30Hz as IMAQ doesn't tell us anything about it */ /* hard code framerate to 30Hz as IMAQ doesn't tell us anything about it */
@ -990,7 +941,10 @@ gst_niimaqsrc_get_cam_caps (GstNiImaqSrc * niimaqsrc)
* and other elements can work directly with this src */ * and other elements can work directly with this src */
if (bpp > 8 && bpp < 16) { if (bpp > 8 && bpp < 16) {
GST_DEBUG_OBJECT (niimaqsrc, "Adding 16bpp caps for compatibility"); GST_DEBUG_OBJECT (niimaqsrc, "Adding 16bpp caps for compatibility");
gst_niimaqsrc_set_caps_color (gs, 16, 16); 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_caps_append_structure (gcaps, gst_structure_copy (gs));
} }
gst_structure_free (gs); gst_structure_free (gs);