X-Git-Url: https://vcs.maemo.org/git/?a=blobdiff_plain;f=gst-plugins-base-subtitles0.10%2Fgst-libs%2Fgst%2Finterfaces%2Fcolorbalance.h;fp=gst-plugins-base-subtitles0.10%2Fgst-libs%2Fgst%2Finterfaces%2Fcolorbalance.h;h=2be7db6c35d1a6c2de2a8735e6bdb171f16eeb3a;hb=57ba96e291a055f69dbfd4ae9f1ae2390e36986e;hp=0000000000000000000000000000000000000000;hpb=be2c98fb83895d10ac44af7b9a9c3e00ca54bf49;p=mafwsubrenderer diff --git a/gst-plugins-base-subtitles0.10/gst-libs/gst/interfaces/colorbalance.h b/gst-plugins-base-subtitles0.10/gst-libs/gst/interfaces/colorbalance.h new file mode 100644 index 0000000..2be7db6 --- /dev/null +++ b/gst-plugins-base-subtitles0.10/gst-libs/gst/interfaces/colorbalance.h @@ -0,0 +1,112 @@ +/* GStreamer Color Balance + * Copyright (C) 2003 Ronald Bultje + * + * color-balance.h: image color balance interface design + * + * 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 __GST_COLOR_BALANCE_H__ +#define __GST_COLOR_BALANCE_H__ + +#include +#include +#include + +G_BEGIN_DECLS + +#define GST_TYPE_COLOR_BALANCE \ + (gst_color_balance_get_type ()) +#define GST_COLOR_BALANCE(obj) \ + (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_COLOR_BALANCE, \ + GstColorBalance)) +#define GST_COLOR_BALANCE_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_COLOR_BALANCE, \ + GstColorBalanceClass)) +#define GST_IS_COLOR_BALANCE(obj) \ + (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_COLOR_BALANCE)) +#define GST_IS_COLOR_BALANCE_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_COLOR_BALANCE)) +#define GST_COLOR_BALANCE_GET_CLASS(inst) \ + (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_COLOR_BALANCE, GstColorBalanceClass)) + +#define GST_COLOR_BALANCE_TYPE(klass) (klass->balance_type) + +typedef struct _GstColorBalance GstColorBalance; +typedef struct _GstColorBalanceClass GstColorBalanceClass; + +/** + * GstColorBalanceType: + * @GST_COLOR_BALANCE_HARDWARE: Color balance is implemented with dedicated + * hardware. + * @GST_COLOR_BALANCE_SOFTWARE: Color balance is implemented via software + * processing. + * + * An enumeration indicating whether an element implements color balancing + * operations in software or in dedicated hardware. In general, dedicated + * hardware implementations (such as those provided by xvimagesink) are + * preferred. + */ +typedef enum +{ + GST_COLOR_BALANCE_HARDWARE, + GST_COLOR_BALANCE_SOFTWARE +} GstColorBalanceType; + +struct _GstColorBalanceClass { + GTypeInterface klass; + + GstColorBalanceType balance_type; + + /* virtual functions */ + const GList * (* list_channels) (GstColorBalance *balance); + + void (* set_value) (GstColorBalance *balance, + GstColorBalanceChannel *channel, + gint value); + gint (* get_value) (GstColorBalance *balance, + GstColorBalanceChannel *channel); + + /* signals */ + void (* value_changed) (GstColorBalance *balance, + GstColorBalanceChannel *channel, + gint value); + + gpointer _gst_reserved[GST_PADDING]; +}; + +GType gst_color_balance_get_type (void); + +/* virtual class function wrappers */ +const GList * + gst_color_balance_list_channels (GstColorBalance *balance); +void gst_color_balance_set_value (GstColorBalance *balance, + GstColorBalanceChannel *channel, + gint value); +gint gst_color_balance_get_value (GstColorBalance *balance, + GstColorBalanceChannel *channel); + +GstColorBalanceType + gst_color_balance_get_balance_type (GstColorBalance *balance); + +/* trigger signal */ +void gst_color_balance_value_changed (GstColorBalance *balance, + GstColorBalanceChannel *channel, + gint value); + +G_END_DECLS + +#endif /* __GST_COLOR_BALANCE_H__ */