/* GStreamer * Copyright (C) <1999> Erik Walthinsen * * 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_FFMPEGDEC_H__ #define __GST_FFMPEGDEC_H__ #include #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ #ifndef __GST_FFMPEG_AV_H__ #define __GST_FFMPEG_AV_H__ #undef ABS #undef MAX #undef MIN #include #include #endif /* __GST_FFMPEG_AV_H__ */ /* This is the definition of the element's object structure. */ typedef struct _GstFFMpegDec GstFFMpegDec; /* The structure itself is derived from GstElement, as can be seen by the * fact that there's a complete instance of the GstElement structure at * the beginning of the object. This allows the element to be cast to * an Element or even an Object. */ struct _GstFFMpegDec { GstElement element; /* We need to keep track of our pads, so we do so here. */ GstPad *srcpad; GstPad *sinkpad; AVCodecContext *context; AVPicture *picture; }; /* The other half of the object is its class. The class also derives from * the same parent, though it must be the class structure this time. * Function pointers for polymophic methods and signals are placed in this * structure. */ typedef struct _GstFFMpegDecClass GstFFMpegDecClass; struct _GstFFMpegDecClass { GstElementClass parent_class; AVCodec *in_plugin; }; /* Five standard preprocessing macros are used in the Gtk+ object system. * The first uses the object's _get_type function to return the GType * of the object. */ #define GST_TYPE_FFMPEGDEC \ (gst_ffmpegdec_get_type()) /* The second is a checking cast to the correct type. If the object passed * is not the right type, a warning will be generated on stderr. */ #define GST_FFMPEGDEC(obj) \ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGDEC,GstFFMpegDec)) /* The third is a checking cast of the class instead of the object. */ #define GST_FFMPEGDEC_CLASS(klass) \ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGDEC,GstFFMpegDec)) /* The last two simply check to see if the passed pointer is an object or * class of the correct type. */ #define GST_IS_FFMPEGDEC(obj) \ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGDEC)) #define GST_IS_FFMPEGDEC_CLASS(obj) \ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGDEC)) gboolean gst_ffmpegdec_register (GstPlugin *plugin); #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* __GST_FFMPEGDEC_H__ */