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gamma: Make gamma property controllable

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...and properly use liboil.
This commit is contained in:
Sebastian Dröge 2010-04-17 18:01:06 +02:00
parent 2a3f99ca5f
commit 18273152b3
2 changed files with 27 additions and 22 deletions
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10
gst/videofilter/Makefile.am
View file

@ -33,10 +33,14 @@ libgstvideobalance_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstvideobalance_la_LIBTOOLFLAGS = --tag=disable-static
libgstgamma_la_SOURCES = gstgamma.c
libgstgamma_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
libgstgamma_la_CFLAGS = $(GST_CFLAGS) $(GST_CONTROLLER_CFLAGS) \
$(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS) \
$(LIBOIL_CFLAGS)
libgstgamma_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ \
$(GST_BASE_LIBS) $(GST_LIBS)
$(GST_CONTROLLER_LIBS) \
$(GST_BASE_LIBS) $(GST_LIBS) \
$(LIBOIL_LIBS)
libgstgamma_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(LIBM)
libgstgamma_la_LIBTOOLFLAGS = --tag=disable-static

39
gst/videofilter/gstgamma.c
View file

@ -45,14 +45,12 @@
#endif
#include "gstgamma.h"
#ifdef HAVE_LIBOIL
#include <liboil/liboil.h>
#endif
#include <string.h>
#include <math.h>
#include <gst/video/video.h>
#include <gst/controller/gstcontroller.h>
GST_DEBUG_CATEGORY_STATIC (gamma_debug);
#define GST_CAT_DEFAULT gamma_debug
@ -123,7 +121,7 @@ gst_gamma_class_init (GstGammaClass * g_class)
g_object_class_install_property (gobject_class, PROP_GAMMA,
g_param_spec_double ("gamma", "Gamma", "gamma",
0.01, 10, DEFAULT_PROP_GAMMA,
G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_gamma_set_caps);
trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_gamma_transform_ip);
@ -149,8 +147,10 @@ gst_gamma_set_property (GObject * object, guint prop_id, const GValue * value,
GST_DEBUG_OBJECT (gamma, "Changing gamma from %lf to %lf", gamma->gamma,
val);
GST_OBJECT_LOCK (gamma);
gamma->gamma = val;
gst_gamma_calculate_tables (gamma);
GST_OBJECT_UNLOCK (gamma);
break;
}
default:
@ -197,21 +197,6 @@ gst_gamma_calculate_tables (GstGamma * gamma)
}
}
#ifndef HAVE_LIBOIL
static void
oil_tablelookup_u8 (guint8 * dest, gint dstr, const guint8 * src, gint sstr,
const guint8 * table, gint tstr, gint n)
{
gint i;
for (i = 0; i < n; i++) {
*dest = table[*src * tstr];
dest += dstr;
src += sstr;
}
}
#endif
/* Useful macros */
#define GST_VIDEO_I420_Y_ROWSTRIDE(width) (GST_ROUND_UP_4(width))
#define GST_VIDEO_I420_U_ROWSTRIDE(width) (GST_ROUND_UP_8(width)/2)
@ -259,6 +244,17 @@ gst_gamma_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
GstGamma *gamma = GST_GAMMA (base);
guint8 *data;
guint size;
GstClockTime timestamp, stream_time;
timestamp = GST_BUFFER_TIMESTAMP (outbuf);
stream_time =
gst_segment_to_stream_time (&base->segment, GST_FORMAT_TIME, timestamp);
GST_DEBUG_OBJECT (gamma, "sync to %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (G_OBJECT (gamma), stream_time);
if (base->passthrough)
goto done;
@ -269,8 +265,10 @@ gst_gamma_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
if (size != gamma->size)
goto wrong_size;
GST_OBJECT_LOCK (gamma);
gst_gamma_planar411_ip (gamma, data,
gamma->height * GST_VIDEO_I420_Y_ROWSTRIDE (gamma->width));
GST_OBJECT_UNLOCK (gamma);
done:
return GST_FLOW_OK;
@ -289,6 +287,9 @@ plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gamma_debug, "gamma", 0, "gamma");
oil_init ();
gst_controller_init (NULL, NULL);
return gst_element_register (plugin, "gamma", GST_RANK_NONE, GST_TYPE_GAMMA);
}