mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-27 02:30:35 +00:00
253cb1c7c7
Original commit message from CVS: * ext/mpeg2dec/gstmpeg2dec.c: * ext/mpeg2dec/gstmpeg2dec.h: Add support for 4:4:4 video. Fixes #562086
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/* 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__ */
|