mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-26 10:10:32 +00:00
129 lines
3 KiB
C
129 lines
3 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_AVI_DEMUX_H__
|
|
#define __GST_AVI_DEMUX_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
#include "gst/riff/riff-ids.h"
|
|
#include "gst/riff/riff-read.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_AVI_DEMUX \
|
|
(gst_avi_demux_get_type ())
|
|
#define GST_AVI_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_AVI_DEMUX, GstAviDemux))
|
|
#define GST_AVI_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_AVI_DEMUX, GstAviDemux))
|
|
#define GST_IS_AVI_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_AVI_DEMUX))
|
|
#define GST_IS_AVI_DEMUX_CLASS(obj) \
|
|
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AVI_DEMUX))
|
|
|
|
#define GST_AVI_DEMUX_MAX_STREAMS 16
|
|
|
|
#define CHUNKID_TO_STREAMNR(chunkid) \
|
|
((((chunkid) & 0xff) - '0') * 10 + \
|
|
(((chunkid) >> 8) & 0xff) - '0')
|
|
|
|
typedef struct {
|
|
gint index_nr;
|
|
gint stream_nr;
|
|
guint64 ts;
|
|
guint32 flags;
|
|
guint32 offset;
|
|
gint size;
|
|
guint64 bytes_before;
|
|
guint32 frames_before;
|
|
} gst_avi_index_entry;
|
|
|
|
typedef struct {
|
|
/* index of this streamcontext */
|
|
guint num;
|
|
|
|
/* pad, strh */
|
|
GstPad *pad;
|
|
GstCaps *caps;
|
|
gst_riff_strh *strh;
|
|
|
|
/* current position (byte, frame, time) */
|
|
guint current_frame;
|
|
guint64 current_byte;
|
|
gint current_entry;
|
|
|
|
/* delay in time (init_frames) */
|
|
guint64 delay;
|
|
|
|
/* stream length */
|
|
guint64 total_bytes;
|
|
guint32 total_frames;
|
|
|
|
guint32 skip;
|
|
} avi_stream_context;
|
|
|
|
typedef enum {
|
|
GST_AVI_DEMUX_START,
|
|
GST_AVI_DEMUX_HEADER,
|
|
GST_AVI_DEMUX_MOVI,
|
|
} GstAviDemuxState;
|
|
|
|
typedef struct _GstAviDemux {
|
|
GstRiffRead parent;
|
|
|
|
/* pads */
|
|
GstPad *sinkpad;
|
|
|
|
/* AVI decoding state */
|
|
GstAviDemuxState state;
|
|
guint level_up;
|
|
|
|
/* index */
|
|
gst_avi_index_entry *index_entries;
|
|
guint index_size;
|
|
guint64 index_offset;
|
|
|
|
/* streams */
|
|
guint num_streams;
|
|
guint num_v_streams;
|
|
guint num_a_streams;
|
|
avi_stream_context stream[GST_AVI_DEMUX_MAX_STREAMS];
|
|
|
|
/* some stream info for length */
|
|
guint32 us_per_frame;
|
|
guint32 num_frames;
|
|
|
|
/* seeking */
|
|
guint64 seek_offset;
|
|
guint64 last_seek;
|
|
|
|
/* info */
|
|
GstCaps *streaminfo;
|
|
} GstAviDemux;
|
|
|
|
typedef struct _GstAviDemuxClass {
|
|
GstRiffReadClass parent_class;
|
|
} GstAviDemuxClass;
|
|
|
|
GType gst_avi_demux_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_AVI_DEMUX_H__ */
|