mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-22 08:17:01 +00:00
Code Issues 1 Projects Releases Wiki Activity

docs/plugins/: Added videobalance and videoflip to the docs.

Browse source 
Original commit message from CVS:
* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-good-plugins-docs.sgml:
* docs/plugins/gst-plugins-good-plugins-sections.txt:
* docs/plugins/gst-plugins-good-plugins.hierarchy:
Added videobalance and videoflip to the docs.
* gst/videofilter/Makefile.am:
* gst/videofilter/gstvideobalance.c:
(gst_video_balance_update_tables_planar411),
(gst_video_balance_is_passthrough),
(gst_video_balance_update_properties), (oil_tablelookup_u8),
(gst_video_balance_planar411_ip), (gst_video_balance_set_caps),
(gst_video_balance_transform_ip), (gst_video_balance_base_init),
(gst_video_balance_finalize), (gst_video_balance_class_init),
(gst_video_balance_init), (gst_video_balance_interface_supported),
(gst_video_balance_interface_init),
(gst_video_balance_colorbalance_list_channels),
(gst_video_balance_colorbalance_set_value),
(gst_video_balance_colorbalance_get_value),
(gst_video_balance_colorbalance_init),
(gst_video_balance_set_property), (gst_video_balance_get_property),
(gst_video_balance_get_type), (plugin_init):
* gst/videofilter/gstvideobalance.h:
Ported to 0.10. (Fixes #326160)
Added docs.
* gst/videofilter/gstvideoflip.c:
* gst/videofilter/gstvideoflip.h:
Added docs.
This commit is contained in:
Wim Taymans 2006-03-03 14:39:55 +00:00
parent 6be283efae
commit e85d1638c3
10 changed files with 665 additions and 464 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
ChangeLog
View file

@ -1,3 +1,35 @@
2006-03-03 Wim Taymans <wim@fluendo.com>
* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-good-plugins-docs.sgml:
* docs/plugins/gst-plugins-good-plugins-sections.txt:
* docs/plugins/gst-plugins-good-plugins.hierarchy:
Added videobalance and videoflip to the docs.
* gst/videofilter/Makefile.am:
* gst/videofilter/gstvideobalance.c:
(gst_video_balance_update_tables_planar411),
(gst_video_balance_is_passthrough),
(gst_video_balance_update_properties), (oil_tablelookup_u8),
(gst_video_balance_planar411_ip), (gst_video_balance_set_caps),
(gst_video_balance_transform_ip), (gst_video_balance_base_init),
(gst_video_balance_finalize), (gst_video_balance_class_init),
(gst_video_balance_init), (gst_video_balance_interface_supported),
(gst_video_balance_interface_init),
(gst_video_balance_colorbalance_list_channels),
(gst_video_balance_colorbalance_set_value),
(gst_video_balance_colorbalance_get_value),
(gst_video_balance_colorbalance_init),
(gst_video_balance_set_property), (gst_video_balance_get_property),
(gst_video_balance_get_type), (plugin_init):
* gst/videofilter/gstvideobalance.h:
Ported to 0.10. (Fixes #326160)
Added docs.
* gst/videofilter/gstvideoflip.c:
* gst/videofilter/gstvideoflip.h:
Added docs.
2006-03-02 Tim-Philipp Müller <tim at centricular dot net>
* configure.ac:

2
docs/plugins/Makefile.am
View file

@ -91,6 +91,8 @@ EXTRA_HFILES = \
$(top_srcdir)/gst/multipart/multipartdemux.c \
$(top_srcdir)/gst/udp/gstudpsrc.h \
$(top_srcdir)/gst/udp/gstmultiudpsink.h \
$(top_srcdir)/gst/videofilter/gstvideoflip.h \
$(top_srcdir)/gst/videofilter/gstvideobalance.h \
$(top_srcdir)/gst/videomixer/videomixer.c
# example code that needs to be converted to xml and placed in xml/

3
docs/plugins/gst-plugins-good-plugins-docs.sgml
View file

@ -29,6 +29,8 @@
<xi:include href="xml/element-multiudpsink.xml" />
<xi:include href="xml/element-multipartmux.xml" />
<xi:include href="xml/element-multipartdemux.xml" />
<xi:include href="xml/element-videobalance.xml" />
<xi:include href="xml/element-videoflip.xml" />
<xi:include href="xml/element-videomixer.xml" />
</chapter>
@ -73,6 +75,7 @@
<xi:include href="xml/plugin-speex.xml" />
<xi:include href="xml/plugin-udp.xml" />
<xi:include href="xml/plugin-videobox.xml" />
<xi:include href="xml/plugin-videobalance.xml" />
<xi:include href="xml/plugin-videoflip.xml" />
<xi:include href="xml/plugin-videomixer.xml" />
<xi:include href="xml/plugin-wavenc.xml" />

29
docs/plugins/gst-plugins-good-plugins-sections.txt
View file

@ -159,6 +159,35 @@ GST_UDPSRC_CLASS
GST_IS_UDPSRC_CLASS
</SECTION>
<SECTION>
<FILE>element-videoflip</FILE>
GstVideoFlip
GstVideoFlipMethod
<TITLE>videoflip</TITLE>
<SUBSECTION Standard>
GstVideoFlipClass
GST_VIDEO_FLIP
GST_IS_VIDEO_FLIP
GST_TYPE_VIDEO_FLIP
gst_video_flip_get_type
GST_VIDEO_FLIP_CLASS
GST_IS_VIDEO_FLIP_CLASS
</SECTION>
<SECTION>
<FILE>element-videobalance</FILE>
GstVideoBalance
<TITLE>videobalance</TITLE>
<SUBSECTION Standard>
GstVideoBalanceClass
GST_VIDEO_BALANCE
GST_IS_VIDEO_BALANCE
GST_TYPE_VIDEO_BALANCE
gst_video_balance_get_type
GST_VIDEO_BALANCE_CLASS
GST_IS_VIDEO_BALANCE_CLASS
</SECTION>
<SECTION>
<FILE>element-videomixer</FILE>
GstVideoMixer

1
docs/plugins/gst-plugins-good-plugins.hierarchy
View file

@ -48,6 +48,7 @@ GObject
GstBaseTransform
GstCairoTimeOverlay
GstVideoFilter
GstVideoBalance
GstVideoFlip
GstEdgeTV
GstAgingTV

14
gst/videofilter/Makefile.am
View file

@ -1,7 +1,7 @@
# noinst_LTLIBRARIES = libgstvideoexample.la
plugin_LTLIBRARIES = libgstvideoflip.la
plugin_LTLIBRARIES = libgstvideoflip.la libgstvideobalance.la
noinst_HEADERS = gstvideoflip.h
noinst_HEADERS = gstvideoflip.h gstvideobalance.h
EXTRA_DIST = gstvideotemplate.c make_filter
CLEANFILES = gstvideoexample.c
@ -17,10 +17,12 @@ libgstvideoflip_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
libgstvideoflip_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ $(GST_BASE_LIBS) $(GST_LIBS)
libgstvideoflip_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
# libgstvideobalance_la_SOURCES = gstvideobalance.c
# libgstvideobalance_la_CFLAGS = $(GST_CFLAGS) $(LIBOIL_CFLAGS)
# libgstvideobalance_la_LIBADD = $(top_builddir)/gst-libs/gst/libgstinterfaces-$(GST_MAJORMINOR).la
# libgstvideobalance_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(LIBOIL_LIBS) -lm
libgstvideobalance_la_SOURCES = gstvideobalance.c
libgstvideobalance_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
libgstvideobalance_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ \
-lgstinterfaces-@GST_MAJORMINOR@ $(GST_BASE_LIBS) $(GST_LIBS)
libgstvideobalance_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
# libgstgamma_la_SOURCES = gstgamma.c
# libgstgamma_la_CFLAGS = $(GST_CFLAGS)

947
gst/videofilter/gstvideobalance.c
View file

@ -23,6 +23,25 @@
* gstvideobalance.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
*/
/**
* SECTION:element-videobalance
*
* <refsect2>
* <para>
* Adjusts brightness, contrast, hue, saturation on a video stream.
* </para>
* <title>Example launch line</title>
* <para>
* <programlisting>
* gst-launch videotestsrc ! videobalance saturation=0.0 ! ffmpegcolorspace ! ximagesink
* </programlisting>
* This pipeline converts the image to black and white by setting the saturation to 0.0.
* </para>
* </refsect2>
*
* Last reviewed on 2006-03-03 (0.10.3)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
@ -34,417 +53,49 @@
#include <string.h>
#include <math.h>
#include <gst/colorbalance/colorbalance.h>
#include <gst/video/video.h>
#include <gst/interfaces/colorbalance.h>
static GstElementDetails video_balance_details =
GST_ELEMENT_DETAILS ("Video Balance Control",
"Filter/Effect/Video",
"Adjusts brightness, contrast, hue, saturation on a video stream",
"David Schleef <ds@schleef.org>");
/* GstVideoBalance signals and args */
#define DEFAULT_PROP_CONTRAST 1.0
#define DEFAULT_PROP_BRIGHTNESS 0.0
#define DEFAULT_PROP_HUE 0.0
#define DEFAULT_PROP_SATURATION 1.0
/* GstVideobalance signals and args */
enum
{
ARG_0,
ARG_CONTRAST,
ARG_BRIGHTNESS,
ARG_HUE,
ARG_SATURATION
/* FILL ME */
PROP_0,
PROP_CONTRAST,
PROP_BRIGHTNESS,
PROP_HUE,
PROP_SATURATION
};
static GstVideofilterClass *parent_class = NULL;
static void gst_videobalance_base_init (gpointer g_class);
static void gst_videobalance_class_init (gpointer g_class, gpointer class_data);
static void gst_videobalance_init (GTypeInstance * instance, gpointer g_class);
static void gst_videobalance_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_videobalance_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_videobalance_planar411 (GstVideofilter * videofilter,
void *dest, void *src);
static void gst_videobalance_setup (GstVideofilter * videofilter);
static void gst_videobalance_interface_init (GstImplementsInterfaceClass *
klass);
static void gst_videobalance_colorbalance_init (GstColorBalanceClass * iface);
static void gst_videobalance_dispose (GObject * object);
static void gst_videobalance_update_properties (GstVideobalance * videobalance);
GType
gst_videobalance_get_type (void)
{
static GType videobalance_type = 0;
if (!videobalance_type) {
static const GTypeInfo videobalance_info = {
sizeof (GstVideobalanceClass),
gst_videobalance_base_init,
NULL,
gst_videobalance_class_init,
NULL,
NULL,
sizeof (GstVideobalance),
0,
gst_videobalance_init,
};
static const GInterfaceInfo iface_info = {
(GInterfaceInitFunc) gst_videobalance_interface_init,
NULL,
NULL,
};
static const GInterfaceInfo colorbalance_info = {
(GInterfaceInitFunc) gst_videobalance_colorbalance_init,
NULL,
NULL,
};
videobalance_type = g_type_register_static (GST_TYPE_VIDEOFILTER,
"GstVideobalance", &videobalance_info, 0);
g_type_add_interface_static (videobalance_type,
GST_TYPE_IMPLEMENTS_INTERFACE, &iface_info);
g_type_add_interface_static (videobalance_type, GST_TYPE_COLOR_BALANCE,
&colorbalance_info);
}
return videobalance_type;
}
static void
gst_videobalance_base_init (gpointer g_class)
{
static GstElementDetails videobalance_details =
GST_ELEMENT_DETAILS ("Video Balance Control",
"Filter/Effect/Video",
"Adjusts brightness, contrast, hue, saturation on a video stream",
"David Schleef <ds@schleef.org>");
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstVideofilterClass *videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
int i;
gst_element_class_set_details (element_class, &videobalance_details);
for (i = 0; i < G_N_ELEMENTS (gst_videobalance_formats); i++) {
gst_videofilter_class_add_format (videofilter_class,
gst_videobalance_formats + i);
}
gst_videofilter_class_add_pad_templates (GST_VIDEOFILTER_CLASS (g_class));
}
static void
gst_videobalance_dispose (GObject * object)
{
GList *channels = NULL;
GstVideobalance *balance;
gint i;
balance = GST_VIDEOBALANCE (object);
if (balance->tableu) {
for (i = 0; i < 256; i++)
g_free (balance->tableu[i]);
g_free (balance->tableu);
balance->tableu = NULL;
}
if (balance->tablev) {
for (i = 0; i < 256; i++)
g_free (balance->tablev[i]);
g_free (balance->tablev);
balance->tablev = NULL;
}
if (balance->tabley) {
g_free (balance->tabley);
balance->tabley = NULL;
}
channels = balance->channels;
while (channels) {
GstColorBalanceChannel *channel = channels->data;
g_object_unref (channel);
channels->data = NULL;
channels = g_list_next (channels);
}
if (balance->channels)
g_list_free (balance->channels);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_videobalance_class_init (gpointer g_class, gpointer class_data)
{
GObjectClass *gobject_class;
GstVideofilterClass *videofilter_class;
gobject_class = G_OBJECT_CLASS (g_class);
videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
parent_class = g_type_class_ref (GST_TYPE_VIDEOFILTER);
gobject_class->set_property = gst_videobalance_set_property;
gobject_class->get_property = gst_videobalance_get_property;
g_object_class_install_property (gobject_class, ARG_CONTRAST,
g_param_spec_double ("contrast", "Contrast", "contrast",
0, 2, 1, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_BRIGHTNESS,
g_param_spec_double ("brightness", "Brightness", "brightness",
-1, 1, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_HUE,
g_param_spec_double ("hue", "Hue", "hue", -1, 1, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_SATURATION,
g_param_spec_double ("saturation", "Saturation", "saturation",
0, 2, 1, G_PARAM_READWRITE));
gobject_class->dispose = gst_videobalance_dispose;
videofilter_class->setup = gst_videobalance_setup;
#ifdef HAVE_LIBOIL
oil_init ();
#endif
}
static void
gst_videobalance_init (GTypeInstance * instance, gpointer g_class)
{
GstVideobalance *videobalance = GST_VIDEOBALANCE (instance);
GstVideofilter *videofilter;
char *channels[4] = { "HUE", "SATURATION",
"BRIGHTNESS", "CONTRAST"
};
gint i;
GST_DEBUG ("gst_videobalance_init");
videofilter = GST_VIDEOFILTER (videobalance);
/* do stuff */
videobalance->contrast = 1.0;
videobalance->brightness = 0.0;
videobalance->saturation = 1.0;
videobalance->hue = 0.0;
videobalance->needupdate = FALSE;
videofilter->passthru = TRUE;
videobalance->tabley = g_new (guint8, 256);
videobalance->tableu = g_new (guint8 *, 256);
videobalance->tablev = g_new (guint8 *, 256);
for (i = 0; i < 256; i++) {
videobalance->tableu[i] = g_new (guint8, 256);
videobalance->tablev[i] = g_new (guint8, 256);
}
/* Generate the channels list */
for (i = 0; i < (sizeof (channels) / sizeof (char *)); i++) {
GstColorBalanceChannel *channel;
channel = g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL, NULL);
channel->label = g_strdup (channels[i]);
channel->min_value = -1000;
channel->max_value = 1000;
videobalance->channels = g_list_append (videobalance->channels, channel);
}
}
static gboolean
gst_videobalance_interface_supported (GstImplementsInterface * iface,
GType type)
{
g_assert (type == GST_TYPE_COLOR_BALANCE);
return TRUE;
}
static void
gst_videobalance_interface_init (GstImplementsInterfaceClass * klass)
{
klass->supported = gst_videobalance_interface_supported;
}
static const GList *
gst_videobalance_colorbalance_list_channels (GstColorBalance * balance)
{
GstVideobalance *videobalance = GST_VIDEOBALANCE (balance);
g_return_val_if_fail (videobalance != NULL, NULL);
g_return_val_if_fail (GST_IS_VIDEOBALANCE (videobalance), NULL);
return videobalance->channels;
}
static void
gst_videobalance_colorbalance_set_value (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value)
{
GstVideobalance *vb = GST_VIDEOBALANCE (balance);
g_return_if_fail (vb != NULL);
g_return_if_fail (GST_IS_VIDEOBALANCE (vb));
g_return_if_fail (GST_IS_VIDEOFILTER (vb));
g_return_if_fail (channel->label != NULL);
if (!g_ascii_strcasecmp (channel->label, "HUE")) {
vb->hue = (value + 1000.0) * 2.0 / 2000.0 - 1.0;
} else if (!g_ascii_strcasecmp (channel->label, "SATURATION")) {
vb->saturation = (value + 1000.0) * 2.0 / 2000.0;
} else if (!g_ascii_strcasecmp (channel->label, "BRIGHTNESS")) {
vb->brightness = (value + 1000.0) * 2.0 / 2000.0 - 1.0;
} else if (!g_ascii_strcasecmp (channel->label, "CONTRAST")) {
vb->contrast = (value + 1000.0) * 2.0 / 2000.0;
}
gst_videobalance_update_properties (vb);
}
static gint
gst_videobalance_colorbalance_get_value (GstColorBalance * balance,
GstColorBalanceChannel * channel)
{
GstVideobalance *vb = GST_VIDEOBALANCE (balance);
gint value = 0;
g_return_val_if_fail (vb != NULL, 0);
g_return_val_if_fail (GST_IS_VIDEOBALANCE (vb), 0);
g_return_val_if_fail (channel->label != NULL, 0);
if (!g_ascii_strcasecmp (channel->label, "HUE")) {
value = (vb->hue + 1) * 2000.0 / 2.0 - 1000.0;
} else if (!g_ascii_strcasecmp (channel->label, "SATURATION")) {
value = vb->saturation * 2000.0 / 2.0 - 1000.0;
} else if (!g_ascii_strcasecmp (channel->label, "BRIGHTNESS")) {
value = (vb->brightness + 1) * 2000.0 / 2.0 - 1000.0;
} else if (!g_ascii_strcasecmp (channel->label, "CONTRAST")) {
value = vb->contrast * 2000.0 / 2.0 - 1000.0;
}
return value;
}
static void
gst_videobalance_colorbalance_init (GstColorBalanceClass * iface)
{
GST_COLOR_BALANCE_TYPE (iface) = GST_COLOR_BALANCE_SOFTWARE;
iface->list_channels = gst_videobalance_colorbalance_list_channels;
iface->set_value = gst_videobalance_colorbalance_set_value;
iface->get_value = gst_videobalance_colorbalance_get_value;
}
static void
gst_videobalance_update_properties (GstVideobalance * videobalance)
{
GstVideofilter *vf = GST_VIDEOFILTER (videobalance);
videobalance->needupdate = TRUE;
if (videobalance->contrast == 1.0 &&
videobalance->brightness == 0.0 &&
videobalance->hue == 0.0 && videobalance->saturation == 1.0) {
vf->passthru = TRUE;
} else {
vf->passthru = FALSE;
}
}
static void
gst_videobalance_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVideobalance *src;
g_return_if_fail (GST_IS_VIDEOBALANCE (object));
src = GST_VIDEOBALANCE (object);
GST_DEBUG ("gst_videobalance_set_property");
switch (prop_id) {
case ARG_CONTRAST:
src->contrast = g_value_get_double (value);
break;
case ARG_BRIGHTNESS:
src->brightness = g_value_get_double (value);
break;
case ARG_HUE:
src->hue = g_value_get_double (value);
break;
case ARG_SATURATION:
src->saturation = g_value_get_double (value);
break;
default:
break;
}
gst_videobalance_update_properties (src);
}
static void
gst_videobalance_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstVideobalance *src;
g_return_if_fail (GST_IS_VIDEOBALANCE (object));
src = GST_VIDEOBALANCE (object);
switch (prop_id) {
case ARG_CONTRAST:
g_value_set_double (value, src->contrast);
break;
case ARG_BRIGHTNESS:
g_value_set_double (value, src->brightness);
break;
case ARG_HUE:
g_value_set_double (value, src->hue);
break;
case ARG_SATURATION:
g_value_set_double (value, src->saturation);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_library_load ("gstvideofilter"))
return FALSE;
return gst_element_register (plugin, "videobalance", GST_RANK_NONE,
GST_TYPE_VIDEOBALANCE);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"videobalance",
"Changes hue, saturation, brightness etc. on video images",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
static void
gst_videobalance_setup (GstVideofilter * videofilter)
{
GstVideobalance *videobalance;
g_return_if_fail (GST_IS_VIDEOBALANCE (videofilter));
videobalance = GST_VIDEOBALANCE (videofilter);
/* if any setup needs to be done, do it here */
}
static GstStaticPadTemplate gst_video_balance_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ IYUV, I420, YV12 }"))
);
static GstStaticPadTemplate gst_video_balance_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ IYUV, I420, YV12 }"))
);
/*
* look-up tables (LUT).
*/
static void
gst_videobalance_update_tables_planar411 (GstVideobalance * vb)
gst_video_balance_update_tables_planar411 (GstVideoBalance * vb)
{
gint i, j;
gdouble y, u, v, hue_cos, hue_sin;
@ -484,6 +135,24 @@ gst_videobalance_update_tables_planar411 (GstVideobalance * vb)
}
}
static gboolean
gst_video_balance_is_passthrough (GstVideoBalance * videobalance)
{
return videobalance->contrast == 1.0 &&
videobalance->brightness == 0.0 &&
videobalance->hue == 0.0 && videobalance->saturation == 1.0;
}
static void
gst_video_balance_update_properties (GstVideoBalance * videobalance)
{
videobalance->passthru = gst_video_balance_is_passthrough (videobalance);
if (!videobalance->passthru) {
gst_video_balance_update_tables_planar411 (videobalance);
}
}
#ifndef HAVE_LIBOIL
void
oil_tablelookup_u8 (guint8 * dest, int dstr, guint8 * src, int sstr,
@ -499,53 +168,465 @@ oil_tablelookup_u8 (guint8 * dest, int dstr, guint8 * src, int 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)
#define GST_VIDEO_I420_V_ROWSTRIDE(width) ((GST_ROUND_UP_8(GST_VIDEO_I420_Y_ROWSTRIDE(width)))/2)
#define GST_VIDEO_I420_Y_OFFSET(w,h) (0)
#define GST_VIDEO_I420_U_OFFSET(w,h) (GST_VIDEO_I420_Y_OFFSET(w,h)+(GST_VIDEO_I420_Y_ROWSTRIDE(w)*GST_ROUND_UP_2(h)))
#define GST_VIDEO_I420_V_OFFSET(w,h) (GST_VIDEO_I420_U_OFFSET(w,h)+(GST_VIDEO_I420_U_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
#define GST_VIDEO_I420_SIZE(w,h) (GST_VIDEO_I420_V_OFFSET(w,h)+(GST_VIDEO_I420_V_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
static void
gst_videobalance_planar411 (GstVideofilter * videofilter, void *dest, void *src)
gst_video_balance_planar411_ip (GstVideoBalance * videobalance, guint8 * data,
gint width, gint height)
{
GstVideobalance *videobalance;
int width;
int height;
int x, y;
guint8 *ydata;
guint8 *udata, *vdata;
gint ystride, ustride, vstride;
gint width2, height2;
g_return_if_fail (GST_IS_VIDEOBALANCE (videofilter));
videobalance = GST_VIDEOBALANCE (videofilter);
ydata = data + GST_VIDEO_I420_Y_OFFSET (width, height);
ystride = GST_VIDEO_I420_Y_ROWSTRIDE (width);
if (videobalance->needupdate) {
gst_videobalance_update_tables_planar411 (videobalance);
videobalance->needupdate = FALSE;
for (y = 0; y < height; y++) {
oil_tablelookup_u8 (ydata, 1, ydata, 1, videobalance->tabley, 1, width);
ydata += ystride;
}
width = videofilter->from_width;
height = videofilter->from_height;
width2 = width >> 1;
height2 = height >> 1;
{
guint8 *cdest = dest;
guint8 *csrc = src;
udata = data + GST_VIDEO_I420_U_OFFSET (width, height);
vdata = data + GST_VIDEO_I420_V_OFFSET (width, height);
ustride = GST_VIDEO_I420_U_ROWSTRIDE (width);
vstride = GST_VIDEO_I420_V_ROWSTRIDE (width);
for (y = 0; y < height; y++) {
oil_tablelookup_u8 (cdest + y * width, 1, csrc + y * width, 1,
videobalance->tabley, 1, width);
for (y = 0; y < height2; y++) {
guint8 *uptr, *vptr;
guint8 u1, v1;
uptr = udata + y * ustride;
vptr = vdata + y * vstride;
for (x = 0; x < width2; x++) {
u1 = *uptr;
v1 = *vptr;
*uptr++ = videobalance->tableu[u1][v1];
*vptr++ = videobalance->tablev[u1][v1];
}
}
}
/* get notified of caps and plug in the correct process function */
static gboolean
gst_video_balance_set_caps (GstBaseTransform * base, GstCaps * incaps,
GstCaps * outcaps)
{
GstVideoBalance *this;
GstStructure *structure;
gboolean res;
this = GST_VIDEO_BALANCE (base);
GST_DEBUG_OBJECT (this,
"set_caps: in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps, outcaps);
structure = gst_caps_get_structure (incaps, 0);
res = gst_structure_get_int (structure, "width", &this->width);
res &= gst_structure_get_int (structure, "height", &this->height);
if (!res)
goto done;
this->size = GST_VIDEO_I420_SIZE (this->width, this->height);
done:
return res;
}
static GstFlowReturn
gst_video_balance_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
{
GstVideoBalance *videobalance;
guint8 *data;
guint size;
gint width, height;
videobalance = GST_VIDEO_BALANCE (base);
/* if no change is needed, we are done */
if (videobalance->passthru)
goto done;
data = GST_BUFFER_DATA (outbuf);
size = GST_BUFFER_SIZE (outbuf);
width = videobalance->width;
height = videobalance->height;
if (size < videobalance->size)
goto wrong_size;
gst_video_balance_planar411_ip (videobalance, data,
videobalance->width, videobalance->height);
done:
return GST_FLOW_OK;
/* ERRORS */
wrong_size:
{
gint u1, v1;
guint8 *usrc, *vsrc;
guint8 *udest, *vdest;
GST_ELEMENT_ERROR (videobalance, STREAM, FORMAT,
(NULL), ("Invalid buffer size %d, expected %d", size,
videobalance->size));
return GST_FLOW_ERROR;
}
}
usrc = src + width * height;
udest = dest + width * height;
vsrc = src + width * height + (width / 2) * (height / 2);
vdest = dest + width * height + (width / 2) * (height / 2);
for (y = 0; y < height / 2; y++) {
for (x = 0; x < width / 2; x++) {
u1 = usrc[y * (width / 2) + x];
v1 = vsrc[y * (width / 2) + x];
udest[y * (width / 2) + x] = videobalance->tableu[u1][v1];
vdest[y * (width / 2) + x] = videobalance->tablev[u1][v1];
}
}
/****************
* Boilerplate
*/
static GstVideoFilterClass *parent_class = NULL;
static void gst_video_balance_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_video_balance_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void
gst_video_balance_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &video_balance_details);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_video_balance_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_video_balance_src_template));
}
static void
gst_video_balance_finalize (GObject * object)
{
GList *channels = NULL;
GstVideoBalance *balance;
gint i;
balance = GST_VIDEO_BALANCE (object);
if (balance->tableu) {
for (i = 0; i < 256; i++)
g_free (balance->tableu[i]);
g_free (balance->tableu);
balance->tableu = NULL;
}
if (balance->tablev) {
for (i = 0; i < 256; i++)
g_free (balance->tablev[i]);
g_free (balance->tablev);
balance->tablev = NULL;
}
if (balance->tabley) {
g_free (balance->tabley);
balance->tabley = NULL;
}
channels = balance->channels;
while (channels) {
GstColorBalanceChannel *channel = channels->data;
g_object_unref (channel);
channels->data = NULL;
channels = g_list_next (channels);
}
if (balance->channels)
g_list_free (balance->channels);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_video_balance_class_init (gpointer g_class, gpointer class_data)
{
GObjectClass *gobject_class;
GstBaseTransformClass *trans_class;
GstVideoFilterClass *videofilter_class;
gobject_class = G_OBJECT_CLASS (g_class);
trans_class = GST_BASE_TRANSFORM_CLASS (g_class);
videofilter_class = GST_VIDEO_FILTER_CLASS (g_class);
parent_class = g_type_class_peek_parent (g_class);
gobject_class->set_property = gst_video_balance_set_property;
gobject_class->get_property = gst_video_balance_get_property;
g_object_class_install_property (gobject_class, PROP_CONTRAST,
g_param_spec_double ("contrast", "Contrast", "contrast",
0.0, 2.0, DEFAULT_PROP_CONTRAST, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_BRIGHTNESS,
g_param_spec_double ("brightness", "Brightness", "brightness",
-1.0, 1.0, DEFAULT_PROP_BRIGHTNESS, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_HUE,
g_param_spec_double ("hue", "Hue", "hue",
-1.0, 1.0, DEFAULT_PROP_HUE, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_SATURATION,
g_param_spec_double ("saturation", "Saturation", "saturation",
0.0, 2.0, DEFAULT_PROP_SATURATION, G_PARAM_READWRITE));
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_video_balance_finalize);
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_balance_set_caps);
trans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_video_balance_transform_ip);
#ifdef HAVE_LIBOIL
oil_init ();
#endif
}
static void
gst_video_balance_init (GTypeInstance * instance, gpointer g_class)
{
GstVideoBalance *videobalance = GST_VIDEO_BALANCE (instance);
GstVideoFilter *videofilter;
char *channels[4] = { "HUE", "SATURATION",
"BRIGHTNESS", "CONTRAST"
};
gint i;
GST_DEBUG ("gst_video_balance_init");
videofilter = GST_VIDEO_FILTER (videobalance);
/* do stuff */
videobalance->contrast = DEFAULT_PROP_CONTRAST;
videobalance->brightness = DEFAULT_PROP_BRIGHTNESS;
videobalance->hue = DEFAULT_PROP_HUE;
videobalance->saturation = DEFAULT_PROP_SATURATION;
gst_video_balance_update_properties (videobalance);
videobalance->tabley = g_new (guint8, 256);
videobalance->tableu = g_new (guint8 *, 256);
videobalance->tablev = g_new (guint8 *, 256);
for (i = 0; i < 256; i++) {
videobalance->tableu[i] = g_new (guint8, 256);
videobalance->tablev[i] = g_new (guint8, 256);
}
/* Generate the channels list */
for (i = 0; i < (sizeof (channels) / sizeof (char *)); i++) {
GstColorBalanceChannel *channel;
channel = g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL, NULL);
channel->label = g_strdup (channels[i]);
channel->min_value = -1000;
channel->max_value = 1000;
videobalance->channels = g_list_append (videobalance->channels, channel);
}
}
static gboolean
gst_video_balance_interface_supported (GstImplementsInterface * iface,
GType type)
{
g_assert (type == GST_TYPE_COLOR_BALANCE);
return TRUE;
}
static void
gst_video_balance_interface_init (GstImplementsInterfaceClass * klass)
{
klass->supported = gst_video_balance_interface_supported;
}
static const GList *
gst_video_balance_colorbalance_list_channels (GstColorBalance * balance)
{
GstVideoBalance *videobalance = GST_VIDEO_BALANCE (balance);
g_return_val_if_fail (videobalance != NULL, NULL);
g_return_val_if_fail (GST_IS_VIDEO_BALANCE (videobalance), NULL);
return videobalance->channels;
}
static void
gst_video_balance_colorbalance_set_value (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value)
{
GstVideoBalance *vb = GST_VIDEO_BALANCE (balance);
g_return_if_fail (vb != NULL);
g_return_if_fail (GST_IS_VIDEO_BALANCE (vb));
g_return_if_fail (GST_IS_VIDEO_FILTER (vb));
g_return_if_fail (channel->label != NULL);
if (!g_ascii_strcasecmp (channel->label, "HUE")) {
vb->hue = (value + 1000.0) * 2.0 / 2000.0 - 1.0;
} else if (!g_ascii_strcasecmp (channel->label, "SATURATION")) {
vb->saturation = (value + 1000.0) * 2.0 / 2000.0;
} else if (!g_ascii_strcasecmp (channel->label, "BRIGHTNESS")) {
vb->brightness = (value + 1000.0) * 2.0 / 2000.0 - 1.0;
} else if (!g_ascii_strcasecmp (channel->label, "CONTRAST")) {
vb->contrast = (value + 1000.0) * 2.0 / 2000.0;
}
gst_video_balance_update_properties (vb);
}
static gint
gst_video_balance_colorbalance_get_value (GstColorBalance * balance,
GstColorBalanceChannel * channel)
{
GstVideoBalance *vb = GST_VIDEO_BALANCE (balance);
gint value = 0;
g_return_val_if_fail (vb != NULL, 0);
g_return_val_if_fail (GST_IS_VIDEO_BALANCE (vb), 0);
g_return_val_if_fail (channel->label != NULL, 0);
if (!g_ascii_strcasecmp (channel->label, "HUE")) {
value = (vb->hue + 1) * 2000.0 / 2.0 - 1000.0;
} else if (!g_ascii_strcasecmp (channel->label, "SATURATION")) {
value = vb->saturation * 2000.0 / 2.0 - 1000.0;
} else if (!g_ascii_strcasecmp (channel->label, "BRIGHTNESS")) {
value = (vb->brightness + 1) * 2000.0 / 2.0 - 1000.0;
} else if (!g_ascii_strcasecmp (channel->label, "CONTRAST")) {
value = vb->contrast * 2000.0 / 2.0 - 1000.0;
}
return value;
}
static void
gst_video_balance_colorbalance_init (GstColorBalanceClass * iface)
{
GST_COLOR_BALANCE_TYPE (iface) = GST_COLOR_BALANCE_SOFTWARE;
iface->list_channels = gst_video_balance_colorbalance_list_channels;
iface->set_value = gst_video_balance_colorbalance_set_value;
iface->get_value = gst_video_balance_colorbalance_get_value;
}
static void
gst_video_balance_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVideoBalance *src;
src = GST_VIDEO_BALANCE (object);
GST_DEBUG ("gst_video_balance_set_property");
switch (prop_id) {
case PROP_CONTRAST:
src->contrast = g_value_get_double (value);
break;
case PROP_BRIGHTNESS:
src->brightness = g_value_get_double (value);
break;
case PROP_HUE:
src->hue = g_value_get_double (value);
break;
case PROP_SATURATION:
src->saturation = g_value_get_double (value);
break;
default:
break;
}
gst_video_balance_update_properties (src);
}
static void
gst_video_balance_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstVideoBalance *src;
src = GST_VIDEO_BALANCE (object);
switch (prop_id) {
case PROP_CONTRAST:
g_value_set_double (value, src->contrast);
break;
case PROP_BRIGHTNESS:
g_value_set_double (value, src->brightness);
break;
case PROP_HUE:
g_value_set_double (value, src->hue);
break;
case PROP_SATURATION:
g_value_set_double (value, src->saturation);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
GType
gst_video_balance_get_type (void)
{
static GType video_balance_type = 0;
if (!video_balance_type) {
static const GTypeInfo video_balance_info = {
sizeof (GstVideoBalanceClass),
gst_video_balance_base_init,
NULL,
gst_video_balance_class_init,
NULL,
NULL,
sizeof (GstVideoBalance),
0,
gst_video_balance_init,
};
static const GInterfaceInfo iface_info = {
(GInterfaceInitFunc) gst_video_balance_interface_init,
NULL,
NULL,
};
static const GInterfaceInfo colorbalance_info = {
(GInterfaceInitFunc) gst_video_balance_colorbalance_init,
NULL,
NULL,
};
video_balance_type = g_type_register_static (GST_TYPE_VIDEO_FILTER,
"GstVideoBalance", &video_balance_info, 0);
g_type_add_interface_static (video_balance_type,
GST_TYPE_IMPLEMENTS_INTERFACE, &iface_info);
g_type_add_interface_static (video_balance_type, GST_TYPE_COLOR_BALANCE,
&colorbalance_info);
}
return video_balance_type;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "videobalance", GST_RANK_NONE,
GST_TYPE_VIDEO_BALANCE);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"videobalance",
"Changes hue, saturation, brightness etc. on video images",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);

64
gst/videofilter/gstvideobalance.h
View file

@ -18,47 +18,61 @@
*/
#ifndef __GST_VIDEOBALANCE_H__
#define __GST_VIDEOBALANCE_H__
#ifndef __GST_VIDEO_BALANCE_H__
#define __GST_VIDEO_BALANCE_H__
#include "gstvideofilter.h"
#include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS
#define GST_TYPE_VIDEOBALANCE \
(gst_videobalance_get_type())
#define GST_VIDEOBALANCE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEOBALANCE,GstVideobalance))
#define GST_VIDEOBALANCE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEOBALANCE,GstVideobalanceClass))
#define GST_IS_VIDEOBALANCE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEOBALANCE))
#define GST_IS_VIDEOBALANCE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEOBALANCE))
#define GST_TYPE_VIDEO_BALANCE \
(gst_video_balance_get_type())
#define GST_VIDEO_BALANCE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_BALANCE,GstVideoBalance))
#define GST_VIDEO_BALANCE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_BALANCE,GstVideoBalanceClass))
#define GST_IS_VIDEO_BALANCE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_BALANCE))
#define GST_IS_VIDEO_BALANCE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_BALANCE))
typedef struct _GstVideobalance GstVideobalance;
typedef struct _GstVideobalanceClass GstVideobalanceClass;
typedef struct _GstVideoBalance GstVideoBalance;
typedef struct _GstVideoBalanceClass GstVideoBalanceClass;
struct _GstVideobalance {
GstVideofilter videofilter;
/**
* GstVideoBalance:
*
* Opaque data structure.
*/
struct _GstVideoBalance {
GstVideoFilter videofilter;
guint8 *tabley, **tableu, **tablev;
gboolean needupdate;
/* channels for interface */
GList *channels;
/* properties */
gdouble contrast;
gdouble brightness;
gdouble hue;
gdouble saturation;
GList *channels;
gboolean passthru;
/* format */
gint width;
gint height;
gint size;
/* tables */
guint8 *tabley, **tableu, **tablev;
};
struct _GstVideobalanceClass {
GstVideofilterClass parent_class;
struct _GstVideoBalanceClass {
GstVideoFilterClass parent_class;
};
GType gst_videobalance_get_type(void);
GType gst_video_balance_get_type(void);
G_END_DECLS
#endif /* __GST_VIDEOBALANCE_H__ */
#endif /* __GST_VIDEO_BALANCE_H__ */

19
gst/videofilter/gstvideoflip.c
View file

@ -22,6 +22,25 @@
* This file was (probably) generated from gstvideoflip.c,
* gstvideoflip.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
*/
/**
* SECTION:element-videoflip
*
* <refsect2>
* <para>
* Flips and rotates video.
* </para>
* <title>Example launch line</title>
* <para>
* <programlisting>
* gst-launch videotestsrc ! videoflip method=clockwise ! ffmpegcolorspace ! ximagesink
* </programlisting>
* This pipeline flips the test image 90 degrees clockwise.
* </para>
* </refsect2>
*
* Last reviewed on 2006-03-03 (0.10.3)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"

18
gst/videofilter/gstvideoflip.h
View file

@ -24,6 +24,19 @@
G_BEGIN_DECLS
/**
* GstVideoFlipMethod:
* @GST_VIDEO_FLIP_METHOD_IDENTITY: Identity (no rotation)
* @GST_VIDEO_FLIP_METHOD_90R: Rotate clockwise 90 degrees
* @GST_VIDEO_FLIP_METHOD_180: Rotate 180 degrees
* @GST_VIDEO_FLIP_METHOD_90L: Rotate counter-clockwise 90 degrees
* @GST_VIDEO_FLIP_METHOD_HORIZ: Flip horizontally
* @GST_VIDEO_FLIP_METHOD_VERT: Flip vertically
* @GST_VIDEO_FLIP_METHOD_TRANS: Flip across upper left/lower right diagonal
* @GST_VIDEO_FLIP_METHOD_OTHER: Flip across upper right/lower left diagonal
*
* The different flip methods.
*/
typedef enum {
GST_VIDEO_FLIP_METHOD_IDENTITY,
GST_VIDEO_FLIP_METHOD_90R,
@ -49,6 +62,11 @@ typedef enum {
typedef struct _GstVideoFlip GstVideoFlip;
typedef struct _GstVideoFlipClass GstVideoFlipClass;
/**
* GstVideoFlip:
*
* Opaque datastructure.
*/
struct _GstVideoFlip {
GstVideoFilter videofilter;