/* GStreamer * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> * * 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_MPEG2DEC_H__ #define __GST_MPEG2DEC_H__ #include <gst/gst.h> #include <mpeg2.h> G_BEGIN_DECLS #define GST_TYPE_MPEG2DEC \ (gst_mpeg2dec_get_type()) #define GST_MPEG2DEC(obj) \ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEG2DEC,GstMpeg2dec)) #define GST_MPEG2DEC_CLASS(klass) \ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEG2DEC,GstMpeg2decClass)) #define GST_IS_MPEG2DEC(obj) \ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG2DEC)) #define GST_IS_MPEG2DEC_CLASS(klass) \ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG2DEC)) #define MPEG_TIME_TO_GST_TIME(time) ((time) == -1 ? -1 : ((time) * (GST_MSECOND/10)) / G_GINT64_CONSTANT(9)) #define GST_TIME_TO_MPEG_TIME(time) ((time) == -1 ? -1 : ((time) * G_GINT64_CONSTANT(9)) / (GST_MSECOND/10)) typedef struct _GstMpeg2dec GstMpeg2dec; typedef struct _GstMpeg2decClass GstMpeg2decClass; typedef enum { MPEG2DEC_FORMAT_NONE, MPEG2DEC_FORMAT_I422, MPEG2DEC_FORMAT_I420, MPEG2DEC_FORMAT_YV12, MPEG2DEC_FORMAT_Y444 } Mpeg2decFormat; typedef enum { MPEG2DEC_DISC_NONE = 0, MPEG2DEC_DISC_NEW_PICTURE, MPEG2DEC_DISC_NEW_KEYFRAME } DiscontState; struct _GstMpeg2dec { GstElement element; /* pads */ GstPad *sinkpad, *srcpad, *userdatapad; mpeg2dec_t *decoder; const mpeg2_info_t *info; gboolean closed; gboolean have_fbuf; /* buffer management */ guint ip_bufpos; GstBuffer *ip_buffers[4]; GstBuffer *b_buffer; DiscontState discont_state; /* the timestamp of the next frame */ GstClockTime next_time; GstSegment segment; /* video state */ Mpeg2decFormat format; gint width; gint height; gint decoded_width; gint decoded_height; gint pixel_width; gint pixel_height; gint frame_rate_code; gint64 total_frames; gint64 frame_period; gint size; gint u_offs; gint v_offs; guint8 *dummybuf[4]; guint64 offset; gint fps_n; gint fps_d; gboolean need_sequence; #ifndef GST_DISABLE_INDEX GstIndex *index; gint index_id; #endif gint error_count; gboolean can_allocate_aligned; /* QoS stuff */ /* with LOCK*/ gdouble proportion; GstClockTime earliest_time; /* gather/decode queues for reverse playback */ GList *gather; GList *decode; GList *queued; /* whether we have a pixel aspect ratio from the sink caps */ gboolean have_par; }; struct _GstMpeg2decClass { GstElementClass parent_class; }; GType gst_mpeg2dec_get_type(void); G_END_DECLS #endif /* __GST_MPEG2DEC_H__ */