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c68357a3a6
Original commit message from CVS: Reviewed by: Ronald S. Bultje <rbultje@ronald.bitfreak.net> * ext/mpeg2dec/gstmpeg2dec.c: (crop_buffer), (gst_mpeg2dec_alloc_buffer): * ext/mpeg2dec/gstmpeg2dec.h: Crop if decoding size is not the actual image size (#163676).
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_MPEG2DEC_H__
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#define __GST_MPEG2DEC_H__
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#include <gst/gst.h>
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#include <mpeg2.h>
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G_BEGIN_DECLS
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#define GST_TYPE_MPEG2DEC \
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(gst_mpeg2dec_get_type())
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#define GST_MPEG2DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEG2DEC,GstMpeg2dec))
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#define GST_MPEG2DEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEG2DEC,GstMpeg2dec))
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#define GST_IS_MPEG2DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG2DEC))
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#define GST_IS_MPEG2DEC_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG2DEC))
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#define MPEG_TIME_TO_GST_TIME(time) (((time) * (GST_MSECOND/10)) / 9LL)
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#define GST_TIME_TO_MPEG_TIME(time) (((time) * 9LL) / (GST_MSECOND/10))
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typedef struct _GstMpeg2dec GstMpeg2dec;
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typedef struct _GstMpeg2decClass GstMpeg2decClass;
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typedef enum
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{
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MPEG2DEC_FORMAT_NONE,
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MPEG2DEC_FORMAT_I422,
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MPEG2DEC_FORMAT_I420,
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MPEG2DEC_FORMAT_YV12
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} Mpeg2decFormat;
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typedef enum
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{
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MPEG2DEC_DISC_NONE = 0,
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MPEG2DEC_DISC_NEW_PICTURE,
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MPEG2DEC_DISC_NEW_KEYFRAME
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} DiscontState;
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struct _GstMpeg2dec {
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GstElement element;
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/* pads */
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GstPad *sinkpad,
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*srcpad,
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*userdatapad;
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mpeg2dec_t *decoder;
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gboolean closed;
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gboolean have_fbuf;
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/* the timestamp of the next frame */
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DiscontState discont_state;
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gint64 next_time;
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gint64 segment_start;
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gint64 segment_end;
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/* video state */
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Mpeg2decFormat format;
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gint width;
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gint height;
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gint decoded_width;
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gint decoded_height;
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gint pixel_width;
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gint pixel_height;
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gint frame_rate_code;
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gint64 total_frames;
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gint64 frame_period;
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gdouble frame_rate;
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gboolean need_sequence;
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GstEvent *pending_event;
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GstIndex *index;
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gint index_id;
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};
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struct _GstMpeg2decClass {
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GstElementClass parent_class;
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};
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GType gst_mpeg2dec_get_type(void);
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G_END_DECLS
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#endif /* __GST_MPEG2DEC_H__ */
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