diff options
Diffstat (limited to 'gst/videofilter/gstvideobalance.c')
| -rw-r--r-- | gst/videofilter/gstvideobalance.c | 313 |
1 files changed, 157 insertions, 156 deletions
diff --git a/gst/videofilter/gstvideobalance.c b/gst/videofilter/gstvideobalance.c index ddbf76b9..2acad7c3 100644 --- a/gst/videofilter/gstvideobalance.c +++ b/gst/videofilter/gstvideobalance.c @@ -38,37 +38,43 @@ #include <gst/colorbalance/colorbalance.h> /* GstVideobalance signals and args */ -enum { +enum +{ /* FILL ME */ LAST_SIGNAL }; -enum { +enum +{ ARG_0, ARG_CONTRAST, ARG_BRIGHTNESS, ARG_HUE, ARG_SATURATION - /* FILL ME */ + /* FILL ME */ }; 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_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_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_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_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); +static void gst_videobalance_dispose (GObject * object); +static void gst_videobalance_update_properties (GstVideobalance * videobalance); GType gst_videobalance_get_type (void) @@ -77,62 +83,61 @@ gst_videobalance_get_type (void) if (!videobalance_type) { static const GTypeInfo videobalance_info = { - sizeof(GstVideobalanceClass), + sizeof (GstVideobalanceClass), gst_videobalance_base_init, NULL, gst_videobalance_class_init, NULL, NULL, - sizeof(GstVideobalance), + 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); + + 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); + &colorbalance_info); } return videobalance_type; } static GstVideofilterFormat gst_videobalance_formats[] = { - { "I420", 12, gst_videobalance_planar411, }, + {"I420", 12, gst_videobalance_planar411,}, }; - + 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>" - ); + 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, + for (i = 0; i < G_N_ELEMENTS (gst_videobalance_formats); i++) { + gst_videofilter_class_add_format (videofilter_class, gst_videobalance_formats + i); } @@ -140,7 +145,7 @@ gst_videobalance_base_init (gpointer g_class) } static void -gst_videobalance_dispose (GObject *object) +gst_videobalance_dispose (GObject * object) { GList *channels = NULL; GstVideobalance *balance; @@ -155,19 +160,19 @@ gst_videobalance_dispose (GObject *object) g_free (balance->tabley); g_free (balance->tableu); g_free (balance->tablev); - + channels = balance->channels; - - while (channels) - { - GstColorBalanceChannel *channel = channels->data; - g_object_unref (channel); - channels = g_list_next (channels); - } - + + while (channels) { + GstColorBalanceChannel *channel = channels->data; + + g_object_unref (channel); + channels = g_list_next (channels); + } + if (balance->channels) g_list_free (balance->channels); - + G_OBJECT_CLASS (parent_class)->dispose (object); } @@ -181,19 +186,18 @@ gst_videobalance_class_init (gpointer g_class, gpointer class_data) videofilter_class = GST_VIDEOFILTER_CLASS (g_class); parent_class = g_type_class_ref (GST_TYPE_VIDEOFILTER); - - 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)); + + 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->set_property = gst_videobalance_set_property; gobject_class->get_property = gst_videobalance_get_property; @@ -202,28 +206,29 @@ gst_videobalance_class_init (gpointer g_class, gpointer class_data) videofilter_class->setup = gst_videobalance_setup; #ifdef HAVE_LIBOIL - oil_init(); + oil_init (); #endif } static void -gst_videobalance_init (GTypeInstance *instance, gpointer g_class) +gst_videobalance_init (GTypeInstance * instance, gpointer g_class) { GstVideobalance *videobalance = GST_VIDEOBALANCE (instance); GstVideofilter *videofilter; char *channels[4] = { "HUE", "SATURATION", - "BRIGHTNESS", "CONTRAST" }; + "BRIGHTNESS", "CONTRAST" + }; gint i; - - GST_DEBUG("gst_videobalance_init"); - videofilter = GST_VIDEOFILTER(videobalance); + GST_DEBUG ("gst_videobalance_init"); + + videofilter = GST_VIDEOFILTER (videobalance); /* do stuff */ - videobalance->contrast = 1.0; + videobalance->contrast = 1.0; videobalance->brightness = 0.0; videobalance->saturation = 1.0; - videobalance->hue = 0.0; + videobalance->hue = 0.0; videobalance->needupdate = FALSE; videofilter->passthru = TRUE; @@ -235,60 +240,58 @@ gst_videobalance_init (GTypeInstance *instance, gpointer g_class) 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); - } + 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) +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) +gst_videobalance_interface_init (GstImplementsInterfaceClass * klass) { klass->supported = gst_videobalance_interface_supported; } static const GList * -gst_videobalance_colorbalance_list_channels (GstColorBalance *balance) +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) +gst_videobalance_colorbalance_set_value (GstColorBalance * balance, + GstColorBalanceChannel * channel, gint value) { GstVideobalance *vb = GST_VIDEOBALANCE (balance); GstVideofilter *vf = GST_VIDEOFILTER (vb); - + g_return_if_fail (vb != NULL); g_return_if_fail (GST_IS_VIDEOBALANCE (vb)); g_return_if_fail (GST_IS_VIDEOFILTER (vf)); 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")) { @@ -298,21 +301,21 @@ gst_videobalance_colorbalance_set_value (GstColorBalance *balance, } 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) +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")) { @@ -322,12 +325,12 @@ gst_videobalance_colorbalance_get_value (GstColorBalance *balance, } 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_videobalance_colorbalance_init (GstColorBalanceClass * iface) { GST_COLOR_BALANCE_TYPE (iface) = GST_COLOR_BALANCE_SOFTWARE; iface->list_channels = gst_videobalance_colorbalance_list_channels; @@ -336,7 +339,7 @@ gst_videobalance_colorbalance_init (GstColorBalanceClass *iface) } static void -gst_videobalance_update_properties (GstVideobalance *videobalance) +gst_videobalance_update_properties (GstVideobalance * videobalance) { GstVideofilter *vf = GST_VIDEOFILTER (videobalance); @@ -344,8 +347,7 @@ gst_videobalance_update_properties (GstVideobalance *videobalance) if (videobalance->contrast == 1.0 && videobalance->brightness == 0.0 && - videobalance->hue == 0.0 && - videobalance->saturation == 1.0) { + videobalance->hue == 0.0 && videobalance->saturation == 1.0) { vf->passthru = TRUE; } else { vf->passthru = FALSE; @@ -353,15 +355,16 @@ gst_videobalance_update_properties (GstVideobalance *videobalance) } static void -gst_videobalance_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) +gst_videobalance_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) { GstVideobalance *src; /* it's not null if we got it, but it might not be ours */ - g_return_if_fail(GST_IS_VIDEOBALANCE(object)); - src = GST_VIDEOBALANCE(object); + g_return_if_fail (GST_IS_VIDEOBALANCE (object)); + src = GST_VIDEOBALANCE (object); - GST_DEBUG("gst_videobalance_set_property"); + GST_DEBUG ("gst_videobalance_set_property"); switch (prop_id) { case ARG_CONTRAST: src->contrast = g_value_get_double (value); @@ -383,13 +386,14 @@ gst_videobalance_set_property (GObject *object, guint prop_id, const GValue *val } static void -gst_videobalance_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) +gst_videobalance_get_property (GObject * object, guint prop_id, GValue * value, + GParamSpec * pspec) { GstVideobalance *src; /* it's not null if we got it, but it might not be ours */ - g_return_if_fail(GST_IS_VIDEOBALANCE(object)); - src = GST_VIDEOBALANCE(object); + g_return_if_fail (GST_IS_VIDEOBALANCE (object)); + src = GST_VIDEOBALANCE (object); switch (prop_id) { case ARG_CONTRAST: @@ -410,33 +414,28 @@ gst_videobalance_get_property (GObject *object, guint prop_id, GValue *value, GP } } -static gboolean plugin_init (GstPlugin *plugin) +static gboolean +plugin_init (GstPlugin * plugin) { - if(!gst_library_load("gstvideofilter")) + 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, - GST_ORIGIN -) - -static void gst_videobalance_setup(GstVideofilter *videofilter) +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, GST_ORIGIN) + + static void gst_videobalance_setup (GstVideofilter * videofilter) { GstVideobalance *videobalance; - g_return_if_fail(GST_IS_VIDEOBALANCE(videofilter)); - videobalance = GST_VIDEOBALANCE(videofilter); + g_return_if_fail (GST_IS_VIDEOBALANCE (videofilter)); + videobalance = GST_VIDEOBALANCE (videofilter); /* if any setup needs to be done, do it here */ @@ -447,7 +446,7 @@ static void gst_videobalance_setup(GstVideofilter *videofilter) */ static void -gst_videobalance_update_tables_planar411 (GstVideobalance *vb) +gst_videobalance_update_tables_planar411 (GstVideobalance * vb) { gint i, j; gdouble y, u, v, hue_cos, hue_sin; @@ -471,28 +470,30 @@ gst_videobalance_update_tables_planar411 (GstVideobalance *vb) * separately. */ for (i = -128; i < 128; i++) { for (j = -128; j < 128; j++) { - u = 128 + (( i * hue_cos + j * hue_sin) * vb->saturation); + u = 128 + ((i * hue_cos + j * hue_sin) * vb->saturation); v = 128 + ((-i * hue_sin + j * hue_cos) * vb->saturation); - if(u < 0) - u = 0; + if (u < 0) + u = 0; else if (u > 255) - u = 255; + u = 255; if (v < 0) - v = 0; + v = 0; else if (v > 255) - v = 255; - vb->tableu[i+128][j+128] = rint (u); - vb->tablev[i+128][j+128] = rint (v); + v = 255; + vb->tableu[i + 128][j + 128] = rint (u); + vb->tablev[i + 128][j + 128] = rint (v); } } } #ifndef HAVE_LIBOIL -void tablelookup_u8 (guint8 *dest, int dstr, guint8 *src, int sstr, - guint8 *table, int tstr, int n) +void +tablelookup_u8 (guint8 * dest, int dstr, guint8 * src, int sstr, + guint8 * table, int tstr, int n) { int i; - for(i=0;i<n;i++){ + + for (i = 0; i < n; i++) { *dest = table[*src * tstr]; dest += dstr; src += sstr; @@ -500,16 +501,16 @@ void tablelookup_u8 (guint8 *dest, int dstr, guint8 *src, int sstr, } #endif -static void gst_videobalance_planar411(GstVideofilter *videofilter, - void *dest, void *src) +static void +gst_videobalance_planar411 (GstVideofilter * videofilter, void *dest, void *src) { GstVideobalance *videobalance; int width; int height; - int x,y; + int x, y; - g_return_if_fail(GST_IS_VIDEOBALANCE(videofilter)); - videobalance = GST_VIDEOBALANCE(videofilter); + g_return_if_fail (GST_IS_VIDEOBALANCE (videofilter)); + videobalance = GST_VIDEOBALANCE (videofilter); if (videobalance->needupdate) { gst_videobalance_update_tables_planar411 (videobalance); @@ -523,9 +524,9 @@ static void gst_videobalance_planar411(GstVideofilter *videofilter, guint8 *cdest = dest; guint8 *csrc = src; - for(y=0;y<height;y++) { - tablelookup_u8 (cdest + y*width, 1, csrc + y*width, 1, - videobalance->tabley, 1, width); + for (y = 0; y < height; y++) { + tablelookup_u8 (cdest + y * width, 1, csrc + y * width, 1, + videobalance->tabley, 1, width); } } @@ -534,17 +535,17 @@ static void gst_videobalance_planar411(GstVideofilter *videofilter, guint8 *usrc, *vsrc; guint8 *udest, *vdest; - 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]; + 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]; } } } |