[MOVED FROM BAD 32/68] colorspace: Add conversion code

Work in progress.  Colorspace handles most format conversion using
3-stage getline/matrix/putline process using an AYUV or ARGB
intermediate, with most functions handled by Orc.  There is also
a table of single-pass conversions, all handled by Orc.  The plan
is to add optional stages for various chroma upsampling/downsampling
algorithms, dithering, and float/int16 intermediates, and then have
Orc create multi-stage functions at runtime.

gst/colorspace/Makefile.am

@@ -3,7 +3,7 @@ plugin_LTLIBRARIES = libgstcolorspace.la
 ORC_SOURCE=gstcolorspaceorc
 include $(top_srcdir)/common/orc.mak
 
-libgstcolorspace_la_SOURCES = gstcolorspace.c
+libgstcolorspace_la_SOURCES = gstcolorspace.c colorspace.c
 nodist_libgstcolorspace_la_SOURCES = $(ORC_NODIST_SOURCES)
 libgstcolorspace_la_CFLAGS = \
 	$(GST_PLUGINS_BASE_CFLAGS) \
@@ -17,6 +17,6 @@ libgstcolorspace_la_LIBADD = \
 libgstcolorspace_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 libgstcolorspace_la_LIBTOOLFLAGS = --tag=disable-static
 
-noinst_HEADERS = gstcolorspace.h
+noinst_HEADERS = gstcolorspace.h colorspace.h
 
 

gst/colorspace/colorspace.h

@@ -0,0 +1,69 @@
+/* Colorspace conversion functions
+ * Copyright (C) 2010 David Schleef <ds@schleef.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __COLORSPACE_H__
+#define __COLORSPACE_H__
+
+#include <gst/video/video.h>
+
+G_BEGIN_DECLS
+
+typedef struct _ColorspaceConvert ColorspaceConvert;
+typedef struct _ColorspaceFrame ColorspaceComponent;
+
+struct _ColorspaceComponent {
+  int offset;
+  int stride;
+};
+
+struct _ColorspaceConvert {
+  gint width, height;
+  gboolean interlaced;
+
+  GstVideoFormat from_format;
+  GstVideoFormat to_format;
+  guint32 *palette;
+
+  guint8 *tmpline;
+
+  int dest_offset[4];
+  int dest_stride[4];
+  int src_offset[4];
+  int src_stride[4];
+
+  void (*convert) (ColorspaceConvert *convert, guint8 *dest, guint8 *src);
+  void (*getline) (ColorspaceConvert *convert, guint8 *dest, guint8 *src, int j);
+  void (*putline) (ColorspaceConvert *convert, guint8 *dest, guint8 *src, int j);
+  void (*matrix) (ColorspaceConvert *convert);
+};
+
+ColorspaceConvert * colorspace_convert_new (GstVideoFormat to_format,
+    GstVideoFormat from_format, int width, int height);
+void colorspace_convert_set_interlaced (ColorspaceConvert *convert,
+    gboolean interlaced);
+void colorspace_convert_set_palette (ColorspaceConvert *convert,
+    guint32 *palette);
+void colorspace_convert_free (ColorspaceConvert * convert);
+void colorspace_convert_convert (ColorspaceConvert * convert,
+    guint8 *dest, guint8 *src);
+
+
+G_END_DECLS
+
+#endif /* __GST_COLORSPACE_H__ */

gst/colorspace/gstcolorspace.c

@@ -47,7 +47,7 @@ GST_DEBUG_CATEGORY (colorspace_performance);
 #define CSP_VIDEO_CAPS						\
   "video/x-raw-yuv, width = "GST_VIDEO_SIZE_RANGE" , "			\
   "height="GST_VIDEO_SIZE_RANGE",framerate="GST_VIDEO_FPS_RANGE","	\
-  "format= (fourcc) { I420 , NV12 , NV21 , YV12 , YUY2 , Y42B , Y444 , YUV9 , YVU9 , Y41B , Y800 , Y8 , GREY , Y16 , UYVY , YVYU , IYU1 , v308 , AYUV } ;" \
+  "format= (fourcc) { I420 , NV12 , NV21 , YV12 , YUY2 , Y42B , Y444 , YUV9 , YVU9 , Y41B , Y800 , Y8 , GREY , Y16 , UYVY , YVYU , IYU1 , v308 , AYUV, v210 } ;" \
   GST_VIDEO_CAPS_RGB";"							\
   GST_VIDEO_CAPS_BGR";"							\
   GST_VIDEO_CAPS_RGBx";"						\
@@ -266,13 +266,23 @@ gst_csp_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
       in_interlaced != out_interlaced)
     goto format_mismatch;
 
+  space->from_format = in_format;
+  space->to_format = out_format;
   space->width = in_width;
   space->height = in_height;
   space->interlaced = in_interlaced;
 
+  space->convert = colorspace_convert_new (out_format, in_format,
+      in_width, in_height);
+  if (space->convert) {
+    colorspace_convert_set_interlaced (space->convert, in_interlaced);
+  }
 
   /* palette, only for from data */
   /* FIXME add palette handling */
+#if 0
+  colorspace_convert_set_palette (convert, palette);
+#endif
 
   GST_DEBUG ("reconfigured %d %d", space->from_format, space->to_format);
 
@@ -281,21 +291,21 @@ gst_csp_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
   /* ERRORS */
 no_width_height:
   {
-    GST_DEBUG_OBJECT (space, "did not specify width or height");
+    GST_ERROR_OBJECT (space, "did not specify width or height");
     space->from_format = GST_VIDEO_FORMAT_UNKNOWN;
     space->to_format = GST_VIDEO_FORMAT_UNKNOWN;
     return FALSE;
   }
 no_framerate:
   {
-    GST_DEBUG_OBJECT (space, "did not specify framerate");
+    GST_ERROR_OBJECT (space, "did not specify framerate");
     space->from_format = GST_VIDEO_FORMAT_UNKNOWN;
     space->to_format = GST_VIDEO_FORMAT_UNKNOWN;
     return FALSE;
   }
 format_mismatch:
   {
-    GST_DEBUG_OBJECT (space, "input and output formats do not match");
+    GST_ERROR_OBJECT (space, "input and output formats do not match");
     space->from_format = GST_VIDEO_FORMAT_UNKNOWN;
     space->to_format = GST_VIDEO_FORMAT_UNKNOWN;
     return FALSE;
@@ -393,6 +403,8 @@ gst_csp_transform (GstBaseTransform * btrans, GstBuffer * inbuf,
           space->to_format == GST_VIDEO_FORMAT_UNKNOWN))
     goto unknown_format;
 
+  colorspace_convert_convert (space->convert, GST_BUFFER_DATA (outbuf),
+      GST_BUFFER_DATA (inbuf));
 
   /* baseclass copies timestamps */
   GST_DEBUG ("from %d -> to %d done", space->from_format, space->to_format);

gst/colorspace/gstcolorspace.h

@@ -25,6 +25,7 @@
 #include <gst/gst.h>
 #include <gst/video/video.h>
 #include <gst/video/gstvideofilter.h>
+#include "colorspace.h"
 
 G_BEGIN_DECLS
 
@@ -52,6 +53,8 @@ struct _GstCsp {
   GstVideoFormat from_format;
   GstVideoFormat to_format;
   guint32 *palette;
+
+  ColorspaceConvert *convert;
 };
 
 struct _GstCspClass