mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-03 16:09:39 +00:00
137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
/* GStreamer DVD Sub-Picture Unit
|
|
* Copyright (C) 2007 Fluendo S.A. <info@fluendo.com>
|
|
*
|
|
* 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_DVD_SPU_H__
|
|
#define __GST_DVD_SPU_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
#include "gstspu-common.h"
|
|
#include "gstspu-vobsub.h"
|
|
#include "gstspu-pgs.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_DVD_SPU \
|
|
(gst_dvd_spu_get_type())
|
|
#define GST_DVD_SPU(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DVD_SPU,GstDVDSpu))
|
|
#define GST_DVD_SPU_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DVD_SPU,GstDVDSpuClass))
|
|
#define GST_IS_DVD_SPU(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DVD_SPU))
|
|
#define GST_IS_DVD_SPU_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DVD_SPU))
|
|
|
|
#define DVD_SPU_LOCK(s) g_mutex_lock (&(s)->spu_lock);
|
|
#define DVD_SPU_UNLOCK(s) g_mutex_unlock (&(s)->spu_lock);
|
|
|
|
typedef struct _GstDVDSpuClass GstDVDSpuClass;
|
|
|
|
typedef enum SpuStateFlags SpuStateFlags;
|
|
typedef enum SpuInputType SpuInputType;
|
|
typedef struct SpuPacket SpuPacket;
|
|
|
|
enum SpuInputType {
|
|
SPU_INPUT_TYPE_NONE = 0x00,
|
|
SPU_INPUT_TYPE_VOBSUB = 0x01,
|
|
SPU_INPUT_TYPE_PGS = 0x02
|
|
};
|
|
|
|
enum SpuStateFlags {
|
|
SPU_STATE_NONE = 0x00,
|
|
/* Flags cleared on a flush */
|
|
SPU_STATE_DISPLAY = 0x01,
|
|
SPU_STATE_FORCED_DSP = 0x02,
|
|
SPU_STATE_STILL_FRAME = 0x04,
|
|
/* Persistent flags */
|
|
SPU_STATE_FORCED_ONLY = 0x100
|
|
};
|
|
|
|
#define SPU_STATE_FLAGS_MASK (0xff)
|
|
|
|
struct SpuState {
|
|
GstClockTime next_ts; /* Next event TS in running time */
|
|
SpuStateFlags flags;
|
|
|
|
GstVideoInfo info;
|
|
|
|
guint32 *comp_bufs[3]; /* Compositing buffers for U+V & A */
|
|
guint16 comp_left;
|
|
guint16 comp_right;
|
|
|
|
SpuVobsubState vobsub;
|
|
SpuPgsState pgs;
|
|
};
|
|
|
|
/* Structure used to store the queue of pending SPU packets. The start_ts is
|
|
* stored in running time...
|
|
* Also used to carry in-band events so they remain serialised properly */
|
|
struct SpuPacket {
|
|
GstClockTime event_ts;
|
|
GstBuffer *buf;
|
|
GstEvent *event;
|
|
};
|
|
|
|
struct _GstDVDSpu {
|
|
GstElement element;
|
|
|
|
GstPad *videosinkpad;
|
|
GstPad *subpic_sinkpad;
|
|
GstPad *srcpad;
|
|
|
|
/* Mutex to protect state we access from different chain funcs */
|
|
GMutex spu_lock;
|
|
|
|
GstSegment video_seg;
|
|
GstSegment subp_seg;
|
|
|
|
SpuState spu_state;
|
|
SpuInputType spu_input_type;
|
|
|
|
/* GQueue of SpuBuf structures */
|
|
GQueue *pending_spus;
|
|
|
|
/* Accumulator for collecting partial SPU buffers until they're complete */
|
|
GstBuffer *partial_spu;
|
|
|
|
/* Store either a reference or a copy of the last video frame for duplication
|
|
* during still-frame conditions */
|
|
GstBuffer *ref_frame;
|
|
|
|
/* Buffer to push after handling a DVD event, if any */
|
|
GstBuffer *pending_frame;
|
|
};
|
|
|
|
struct _GstDVDSpuClass {
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
GType gst_dvd_spu_get_type (void);
|
|
|
|
typedef enum {
|
|
GST_DVD_SPU_DEBUG_RENDER_RECTANGLE = (1 << 0),
|
|
GST_DVD_SPU_DEBUG_HIGHLIGHT_RECTANGLE = (1 << 1)
|
|
} GstDVDSPUDebugFlags;
|
|
|
|
extern GstDVDSPUDebugFlags dvdspu_debug_flags;
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_DVD_SPU_H__ */
|