| /* GStreamer |
| * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> |
| * 2000 Wim Taymans <wtay@chello.be> |
| * 2005 Wim Taymans <wim@fluendo.com> |
| * |
| * gstpushsrc.h: |
| * |
| * 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., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef __GST_PUSH_SRC_H__ |
| #define __GST_PUSH_SRC_H__ |
| |
| #include <gst/gst.h> |
| #include <gst/base/gstbasesrc.h> |
| |
| G_BEGIN_DECLS |
| |
| #define GST_TYPE_PUSH_SRC (gst_push_src_get_type()) |
| #define GST_PUSH_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PUSH_SRC,GstPushSrc)) |
| #define GST_PUSH_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PUSH_SRC,GstPushSrcClass)) |
| #define GST_PUSH_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_PUSH_SRC, GstPushSrcClass)) |
| #define GST_IS_PUSH_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PUSH_SRC)) |
| #define GST_IS_PUSH_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PUSH_SRC)) |
| |
| typedef struct _GstPushSrc GstPushSrc; |
| typedef struct _GstPushSrcClass GstPushSrcClass; |
| |
| /** |
| * GstPushSrc: |
| * |
| * The opaque #GstPushSrc data structure. |
| */ |
| struct _GstPushSrc { |
| GstBaseSrc parent; |
| |
| /*< private >*/ |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| |
| /** |
| * GstPushSrcClass: |
| * @parent_class: Element parent class |
| * @create: Ask the subclass to create a buffer. The subclass decides which |
| * size this buffer should be. Other then that, refer to |
| * #GstBaseSrc<!-- -->.create() for more details. If this method is |
| * not implemented, @alloc followed by @fill will be called. |
| * @alloc: Ask the subclass to allocated a buffer. The subclass decides which |
| * size this buffer should be. The default implementation will create |
| * a new buffer from the negotiate allcoator. |
| * @fill: Ask the subclass to fill the buffer with data. |
| * |
| * Subclasses can override any of the available virtual methods or not, as |
| * needed. At the minimum, the @fill method should be overridden to produce |
| * buffers. |
| */ |
| struct _GstPushSrcClass { |
| GstBaseSrcClass parent_class; |
| |
| /* ask the subclass to create a buffer, the default implementation |
| * uses alloc and fill */ |
| GstFlowReturn (*create) (GstPushSrc *src, GstBuffer **buf); |
| /* allocate memory for a buffer */ |
| GstFlowReturn (*alloc) (GstPushSrc *src, GstBuffer **buf); |
| /* ask the subclass to fill a buffer */ |
| GstFlowReturn (*fill) (GstPushSrc *src, GstBuffer *buf); |
| |
| /*< private >*/ |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| |
| GType gst_push_src_get_type(void); |
| |
| G_END_DECLS |
| |
| #endif /* __GST_PUSH_SRC_H__ */ |