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Fixed problem with color conversion

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Original commit message from CVS:
Fixed problem with color conversion
Added conversion between YV12 and I420
This commit is contained in:
Wim Taymans 2002-06-21 18:29:13 +00:00
parent 43d17ede7a
commit 9251ed656a
5 changed files with 57 additions and 11 deletions
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29
ext/hermes/gstcolorspace.c
View file

@ -21,6 +21,7 @@
#include "gstcolorspace.h"
#include "yuv2rgb.h"
#include "yuv2yuv.h"
static GstElementDetails colorspace_details = {
@ -54,6 +55,7 @@ GST_PAD_TEMPLATE_FACTORY (colorspace_src_template_factory,
"video/raw",
"format", GST_PROPS_LIST (
GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
GST_PROPS_FOURCC (GST_STR_FOURCC ("YV12")),
GST_PROPS_FOURCC (GST_STR_FOURCC ("YUY2")),
GST_PROPS_FOURCC (GST_STR_FOURCC ("RGB "))
),
@ -71,6 +73,7 @@ GST_PAD_TEMPLATE_FACTORY (colorspace_sink_template_factory,
"video/raw",
"format", GST_PROPS_LIST (
GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
GST_PROPS_FOURCC (GST_STR_FOURCC ("YV12")),
GST_PROPS_FOURCC (GST_STR_FOURCC ("YUY2")),
GST_PROPS_FOURCC (GST_STR_FOURCC ("RGB "))
),
@ -98,8 +101,6 @@ static GstElementStateReturn
gst_colorspace_change_state (GstElement *element);
/* FIXME */
extern void gst_colorspace_yuy2_to_i420 (unsigned char *src, unsigned char *dest,
guint width, guint height);
extern void gst_colorspace_rgb32_to_i420 (unsigned char *src, unsigned char *dest,
guint width, guint height);
extern void gst_colorspace_rgb32_to_yv12 (unsigned char *src, unsigned char *dest,
@ -218,6 +219,10 @@ colorspace_setup_converter (GstColorspace *space, GstCaps *from_caps, GstCaps *t
space->type = GST_COLORSPACE_NONE;
space->destbpp = 12;
return TRUE;
case GST_MAKE_FOURCC ('Y','V','1','2'):
space->type = GST_COLORSPACE_420_SWAP;
space->destbpp = 12;
return TRUE;
}
break;
@ -231,6 +236,17 @@ colorspace_setup_converter (GstColorspace *space, GstCaps *from_caps, GstCaps *t
space->type = GST_COLORSPACE_NONE;
space->destbpp = 16;
return TRUE;
case GST_MAKE_FOURCC ('R','G','B',' '):
GST_INFO (GST_CAT_NEGOTIATION, "colorspace: YUY2 to RGB not implemented!!");
return FALSE;
}
break;
case GST_MAKE_FOURCC ('Y','V','1','2'):
switch (to_space) {
case GST_MAKE_FOURCC ('I','4','2','0'):
space->type = GST_COLORSPACE_420_SWAP;
space->destbpp = 12;
return TRUE;
}
break;
}
@ -279,7 +295,7 @@ gst_colorspace_sinkconnect (GstPad *pad, GstCaps *caps)
peer = gst_pad_get_peer (pad);
if (peer) {
if (!gst_colorspace_srcconnect_func (pad, gst_pad_get_allowed_caps (space->srcpad), FALSE)) {
if (gst_colorspace_srcconnect_func (pad, gst_pad_get_allowed_caps (space->srcpad), FALSE) < 1) {
space->sinkcaps = NULL;
return GST_PAD_CONNECT_REFUSED;
}
@ -347,7 +363,6 @@ gst_colorspace_srcconnect_func (GstPad *pad, GstCaps *caps, gboolean newcaps)
peercaps = peercaps->next;
}
gst_element_error (GST_ELEMENT (space), "could not agree on caps with peer pads");
/* we disable ourself here */
space->disabled = TRUE;
@ -475,6 +490,12 @@ gst_colorspace_chain (GstPad *pad,GstBuffer *buf)
space->width,
space->height);
}
else if (space->type == GST_COLORSPACE_420_SWAP) {
gst_colorspace_i420_to_yv12 (GST_BUFFER_DATA (buf),
GST_BUFFER_DATA (outbuf),
space->width,
space->height);
}
else if (space->type == GST_COLORSPACE_RGB32_I420) {
gst_colorspace_rgb32_to_i420 (GST_BUFFER_DATA (buf),
GST_BUFFER_DATA (outbuf),

1
ext/hermes/gstcolorspace.h
View file

@ -59,6 +59,7 @@ typedef enum {
GST_COLORSPACE_YUY2_I420,
GST_COLORSPACE_RGB32_I420,
GST_COLORSPACE_RGB32_YV12,
GST_COLORSPACE_420_SWAP,
} GstColorSpaceConverterType;
struct _GstColorspace {

12
ext/hermes/yuv2rgb.c
View file

@ -24,10 +24,10 @@
#include "yuv2rgb.h"
/*#undef HAVE_LIBMMX */
/* #define HAVE_LIBMMX */
#ifdef HAVE_LIBMMX
#include "mmx.h"
#ifdef HAVE_LIBMMX
#include <mmx.h>
#endif
#define CB_BASE 1
@ -187,8 +187,8 @@ static void gst_colorspace_yuv420P_to_rgb32(GstColorSpaceConverter *space, unsig
gst_colorspace_yuv_to_rgb32(space->color_tables,
src, /* Y component */
src+size+(size>>2), /* cb component */
src+size, /* cr component */
src+size+(size>>2), /* cb component */
dest,
space->height,
space->width);
@ -203,8 +203,8 @@ static void gst_colorspace_yuv420P_to_rgb24(GstColorSpaceConverter *space, unsig
gst_colorspace_yuv_to_rgb24(space->color_tables,
src, /* Y component */
src+size+(size>>2), /* cb component */
src+size, /* cr component */
src+size+(size>>2), /* cb component */
dest,
space->height,
space->width);
@ -219,8 +219,8 @@ static void gst_colorspace_yuv420P_to_rgb16(GstColorSpaceConverter *space, unsig
gst_colorspace_yuv_to_rgb16(space->color_tables,
src, /* Y component */
src+size+(size>>2), /* cb component */
src+size, /* cr component */
src+size+(size>>2), /* cb component */
dest,
space->height,
space->width);

23
ext/hermes/yuv2yuv.c
View file

@ -53,3 +53,26 @@ void gst_colorspace_yuy2_to_i420(unsigned char *src, unsigned char *dest, guint
}
}
}
void gst_colorspace_i420_to_yv12(unsigned char *src, unsigned char *dest, guint width, guint height)
{
int size, i;
guint8 *destcr, *destcb;
size = width * height;
memcpy (dest, src, size);
src += size;
destcr = dest + size;
size >>=2;
destcb = destcr + size;
i=size;
while (i--)
*destcb++ = *src++;
i=size;
while (i--)
*destcr++ = *src++;
}

3
ext/hermes/yuv2yuv.h
View file

@ -22,7 +22,8 @@
#include <gst/gst.h>
void gst_colorspace_yuy2_to_i420( guchar *src, guchar *dest, guint width, guint height);
void gst_colorspace_yuy2_to_i420 (guchar *src, guchar *dest, guint width, guint height);
void gst_colorspace_i420_to_yv12 (guchar *src, guchar *dest, guint width, guint height);
#endif