mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 05:38:58 +00:00
This is needed to satisfy the new -Wunused-but-set-variable added in GCC 4.6: http://gcc.gnu.org/gcc-4.6/changes.html
378 lines
11 KiB
C
378 lines
11 KiB
C
/* GStreamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
* Copyright (C) <2003> 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.
|
|
*/
|
|
|
|
/*
|
|
* This file was (probably) generated from
|
|
* gstvideotemplate.c,v 1.18 2005/11/14 02:13:34 thomasvs Exp
|
|
* and
|
|
* $Id: make_filter,v 1.8 2004/04/19 22:51:57 ds Exp $
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstbasetransform.h>
|
|
#include <gst/video/video.h>
|
|
#include <string.h>
|
|
#include <cog/cog.h>
|
|
#include <math.h>
|
|
#include <cog/cogvirtframe.h>
|
|
|
|
#define GST_TYPE_COGDOWNSAMPLE \
|
|
(gst_cogdownsample_get_type())
|
|
#define GST_COGDOWNSAMPLE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COGDOWNSAMPLE,GstCogdownsample))
|
|
#define GST_COGDOWNSAMPLE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_COGDOWNSAMPLE,GstCogdownsampleClass))
|
|
#define GST_IS_COGDOWNSAMPLE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COGDOWNSAMPLE))
|
|
#define GST_IS_COGDOWNSAMPLE_CLASS(obj) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COGDOWNSAMPLE))
|
|
|
|
typedef struct _GstCogdownsample GstCogdownsample;
|
|
typedef struct _GstCogdownsampleClass GstCogdownsampleClass;
|
|
|
|
struct _GstCogdownsample
|
|
{
|
|
GstBaseTransform base_transform;
|
|
|
|
};
|
|
|
|
struct _GstCogdownsampleClass
|
|
{
|
|
GstBaseTransformClass parent_class;
|
|
|
|
};
|
|
|
|
GType gst_cogdownsample_get_type (void);
|
|
|
|
enum
|
|
{
|
|
ARG_0
|
|
};
|
|
|
|
static void gst_cogdownsample_base_init (gpointer g_class);
|
|
static void gst_cogdownsample_class_init (gpointer g_class,
|
|
gpointer class_data);
|
|
static void gst_cogdownsample_init (GTypeInstance * instance, gpointer g_class);
|
|
|
|
static void gst_cogdownsample_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec);
|
|
static void gst_cogdownsample_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec);
|
|
|
|
static GstCaps *gst_cogdownsample_transform_caps (GstBaseTransform *
|
|
base_transform, GstPadDirection direction, GstCaps * caps);
|
|
static GstFlowReturn gst_cogdownsample_transform (GstBaseTransform *
|
|
base_transform, GstBuffer * inbuf, GstBuffer * outbuf);
|
|
static gboolean gst_cogdownsample_get_unit_size (GstBaseTransform *
|
|
base_transform, GstCaps * caps, guint * size);
|
|
|
|
static GstStaticPadTemplate gst_cogdownsample_sink_template =
|
|
GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ I420, YV12, YUY2, UYVY, AYUV }"))
|
|
);
|
|
|
|
static GstStaticPadTemplate gst_cogdownsample_src_template =
|
|
GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ I420, YV12, YUY2, UYVY, AYUV }"))
|
|
);
|
|
|
|
GType
|
|
gst_cogdownsample_get_type (void)
|
|
{
|
|
static GType compress_type = 0;
|
|
|
|
if (!compress_type) {
|
|
static const GTypeInfo compress_info = {
|
|
sizeof (GstCogdownsampleClass),
|
|
gst_cogdownsample_base_init,
|
|
NULL,
|
|
gst_cogdownsample_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstCogdownsample),
|
|
0,
|
|
gst_cogdownsample_init,
|
|
};
|
|
|
|
compress_type = g_type_register_static (GST_TYPE_BASE_TRANSFORM,
|
|
"GstCogdownsample", &compress_info, 0);
|
|
}
|
|
return compress_type;
|
|
}
|
|
|
|
|
|
static void
|
|
gst_cogdownsample_base_init (gpointer g_class)
|
|
{
|
|
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_cogdownsample_src_template));
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_cogdownsample_sink_template));
|
|
|
|
gst_element_class_set_details_simple (element_class,
|
|
"Scale down video by factor of 2", "Filter/Effect/Video",
|
|
"Scales down video by a factor of 2", "David Schleef <ds@schleef.org>");
|
|
}
|
|
|
|
static void
|
|
gst_cogdownsample_class_init (gpointer g_class, gpointer class_data)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstBaseTransformClass *base_transform_class;
|
|
|
|
gobject_class = G_OBJECT_CLASS (g_class);
|
|
base_transform_class = GST_BASE_TRANSFORM_CLASS (g_class);
|
|
|
|
gobject_class->set_property = gst_cogdownsample_set_property;
|
|
gobject_class->get_property = gst_cogdownsample_get_property;
|
|
|
|
base_transform_class->transform = gst_cogdownsample_transform;
|
|
base_transform_class->transform_caps = gst_cogdownsample_transform_caps;
|
|
base_transform_class->get_unit_size = gst_cogdownsample_get_unit_size;
|
|
}
|
|
|
|
static void
|
|
gst_cogdownsample_init (GTypeInstance * instance, gpointer g_class)
|
|
{
|
|
|
|
GST_DEBUG ("gst_cogdownsample_init");
|
|
}
|
|
|
|
static void
|
|
gst_cogdownsample_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
g_return_if_fail (GST_IS_COGDOWNSAMPLE (object));
|
|
|
|
GST_DEBUG ("gst_cogdownsample_set_property");
|
|
switch (prop_id) {
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_cogdownsample_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
g_return_if_fail (GST_IS_COGDOWNSAMPLE (object));
|
|
|
|
switch (prop_id) {
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
transform_value (GValue * dest, const GValue * src, GstPadDirection dir)
|
|
{
|
|
g_value_init (dest, G_VALUE_TYPE (src));
|
|
|
|
if (G_VALUE_HOLDS_INT (src)) {
|
|
int x;
|
|
|
|
x = g_value_get_int (src);
|
|
if (dir == GST_PAD_SINK) {
|
|
g_value_set_int (dest, x / 2);
|
|
} else {
|
|
g_value_set_int (dest, x * 2);
|
|
}
|
|
} else if (GST_VALUE_HOLDS_INT_RANGE (src)) {
|
|
int min, max;
|
|
|
|
min = gst_value_get_int_range_min (src);
|
|
max = gst_value_get_int_range_max (src);
|
|
|
|
if (dir == GST_PAD_SINK) {
|
|
min = (min + 1) / 2;
|
|
if (max == G_MAXINT) {
|
|
max = G_MAXINT / 2;
|
|
} else {
|
|
max = (max + 1) / 2;
|
|
}
|
|
} else {
|
|
if (max > G_MAXINT / 2) {
|
|
max = G_MAXINT;
|
|
} else {
|
|
max = max * 2;
|
|
}
|
|
if (min > G_MAXINT / 2) {
|
|
min = G_MAXINT;
|
|
} else {
|
|
min = min * 2;
|
|
}
|
|
}
|
|
gst_value_set_int_range (dest, min, max);
|
|
} else {
|
|
/* FIXME */
|
|
g_warning ("case not handled");
|
|
g_value_set_int (dest, 100);
|
|
}
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_cogdownsample_transform_caps (GstBaseTransform * base_transform,
|
|
GstPadDirection direction, GstCaps * caps)
|
|
{
|
|
int i;
|
|
GstStructure *structure;
|
|
GValue new_value = { 0 };
|
|
const GValue *value;
|
|
|
|
caps = gst_caps_copy (caps);
|
|
|
|
for (i = 0; i < gst_caps_get_size (caps); i++) {
|
|
structure = gst_caps_get_structure (caps, i);
|
|
|
|
value = gst_structure_get_value (structure, "width");
|
|
transform_value (&new_value, value, direction);
|
|
gst_structure_set_value (structure, "width", &new_value);
|
|
g_value_unset (&new_value);
|
|
|
|
value = gst_structure_get_value (structure, "height");
|
|
transform_value (&new_value, value, direction);
|
|
gst_structure_set_value (structure, "height", &new_value);
|
|
g_value_unset (&new_value);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static gboolean
|
|
gst_cogdownsample_get_unit_size (GstBaseTransform * base_transform,
|
|
GstCaps * caps, guint * size)
|
|
{
|
|
int width, height;
|
|
uint32_t format;
|
|
|
|
gst_structure_get_fourcc (gst_caps_get_structure (caps, 0),
|
|
"format", &format);
|
|
gst_structure_get_int (gst_caps_get_structure (caps, 0), "width", &width);
|
|
gst_structure_get_int (gst_caps_get_structure (caps, 0), "height", &height);
|
|
|
|
switch (format) {
|
|
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
|
|
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
|
|
*size = width * height * 3 / 2;
|
|
break;
|
|
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
|
|
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
|
|
*size = width * height * 2;
|
|
break;
|
|
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
|
|
*size = width * height * 4;
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_cogdownsample_transform (GstBaseTransform * base_transform,
|
|
GstBuffer * inbuf, GstBuffer * outbuf)
|
|
{
|
|
CogFrame *outframe;
|
|
int width, height;
|
|
uint32_t format;
|
|
CogFrame *frame;
|
|
|
|
g_return_val_if_fail (GST_IS_COGDOWNSAMPLE (base_transform), GST_FLOW_ERROR);
|
|
|
|
gst_structure_get_fourcc (gst_caps_get_structure (inbuf->caps, 0),
|
|
"format", &format);
|
|
gst_structure_get_int (gst_caps_get_structure (inbuf->caps, 0),
|
|
"width", &width);
|
|
gst_structure_get_int (gst_caps_get_structure (inbuf->caps, 0),
|
|
"height", &height);
|
|
|
|
switch (format) {
|
|
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
|
|
frame = cog_frame_new_from_data_I420 (GST_BUFFER_DATA (inbuf),
|
|
width, height);
|
|
outframe = cog_frame_new_from_data_I420 (GST_BUFFER_DATA (outbuf),
|
|
width / 2, height / 2);
|
|
break;
|
|
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
|
|
frame = cog_frame_new_from_data_YV12 (GST_BUFFER_DATA (inbuf),
|
|
width, height);
|
|
outframe = cog_frame_new_from_data_YV12 (GST_BUFFER_DATA (outbuf),
|
|
width / 2, height / 2);
|
|
break;
|
|
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
|
|
frame = cog_frame_new_from_data_YUY2 (GST_BUFFER_DATA (inbuf),
|
|
width, height);
|
|
outframe = cog_frame_new_from_data_YUY2 (GST_BUFFER_DATA (outbuf),
|
|
width / 2, height / 2);
|
|
break;
|
|
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
|
|
frame = cog_frame_new_from_data_UYVY (GST_BUFFER_DATA (inbuf),
|
|
width, height);
|
|
outframe = cog_frame_new_from_data_UYVY (GST_BUFFER_DATA (outbuf),
|
|
width / 2, height / 2);
|
|
break;
|
|
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
|
|
frame = cog_frame_new_from_data_AYUV (GST_BUFFER_DATA (inbuf),
|
|
width, height);
|
|
outframe = cog_frame_new_from_data_AYUV (GST_BUFFER_DATA (outbuf),
|
|
width / 2, height / 2);
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
frame = cog_virt_frame_new_unpack (frame);
|
|
frame = cog_virt_frame_new_horiz_downsample (frame, 3);
|
|
frame = cog_virt_frame_new_vert_downsample (frame, 2);
|
|
|
|
switch (format) {
|
|
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
|
|
frame = cog_virt_frame_new_pack_YUY2 (frame);
|
|
break;
|
|
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
|
|
frame = cog_virt_frame_new_pack_UYVY (frame);
|
|
break;
|
|
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
|
|
frame = cog_virt_frame_new_pack_AYUV (frame);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
cog_virt_frame_render (frame, outframe);
|
|
cog_frame_unref (frame);
|
|
cog_frame_unref (outframe);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|