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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2006> Nokia Corporation (contact <stefan.kost@nokia.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_AVI_DEMUX_H__
#define __GST_AVI_DEMUX_H__
#include <gst/gst.h>
#include "avi-ids.h"
#include "gst/riff/riff-ids.h"
#include "gst/riff/riff-read.h"
#include <gst/base/gstadapter.h>
#include <gst/base/gstflowcombiner.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, GstAviDemuxClass))
#define GST_IS_AVI_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_AVI_DEMUX))
#define GST_IS_AVI_DEMUX_CLASS(klass) \
(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')
/* new index entries 24 bytes */
typedef struct {
guint32 flags;
guint32 size; /* bytes of the data */
guint64 offset; /* data offset in file */
guint64 total; /* total bytes before */
} GstAviIndexEntry;
typedef struct {
/* index of this streamcontext */
guint num;
/* pad*/
GstPad *pad;
gboolean exposed;
/* stream info and headers */
gst_riff_strh *strh;
union {
gst_riff_strf_vids *vids;
gst_riff_strf_auds *auds;
gst_riff_strf_iavs *iavs;
gpointer data;
} strf;
GstBuffer *extradata, *initdata;
GstBuffer *rgb8_palette;
gchar *name;
/* the start/step/stop entries */
guint start_entry;
guint step_entry;
guint stop_entry;
/* current index entry */
guint current_entry;
/* position (byte, frame, time) for current_entry */
guint current_total;
GstClockTime current_timestamp;
GstClockTime current_ts_end;
guint64 current_offset;
guint64 current_offset_end;
gboolean discont;
/* stream length */
guint64 total_bytes;
guint32 total_blocks;
guint n_keyframes;
/* stream length according to index */
GstClockTime idx_duration;
/* stream length according to header */
GstClockTime hdr_duration;
/* stream length based on header/index */
GstClockTime duration;
/* VBR indicator */
gboolean is_vbr;
/* openDML support (for files >4GB) */
gboolean superindex;
guint64 *indexes;
/* new indexes */
GstAviIndexEntry *index; /* array with index entries */
guint idx_n; /* number of entries */
guint idx_max; /* max allocated size of entries */
GstTagList *taglist;
gint index_id;
gboolean is_raw;
} GstAviStream;
typedef enum {
GST_AVI_DEMUX_START,
GST_AVI_DEMUX_HEADER,
GST_AVI_DEMUX_MOVI,
GST_AVI_DEMUX_SEEK,
} GstAviDemuxState;
typedef enum {
GST_AVI_DEMUX_HEADER_TAG_LIST,
GST_AVI_DEMUX_HEADER_AVIH,
GST_AVI_DEMUX_HEADER_ELEMENTS,
GST_AVI_DEMUX_HEADER_INFO,
GST_AVI_DEMUX_HEADER_JUNK,
GST_AVI_DEMUX_HEADER_DATA
} GstAviDemuxHeaderState;
typedef struct _GstAviDemux {
GstElement parent;
/* pads */
GstPad *sinkpad;
/* AVI decoding state */
GstAviDemuxState state;
GstAviDemuxHeaderState header_state;
guint64 offset;
gboolean abort_buffering;
/* when we loaded the indexes */
gboolean have_index;
/* index offset in the file */
guint64 index_offset;
/* streams */
GstAviStream stream[GST_AVI_DEMUX_MAX_STREAMS];
guint num_streams;
guint num_v_streams;
guint num_a_streams;
guint num_t_streams; /* subtitle text streams */
guint num_sp_streams; /* subpicture streams */
guint main_stream; /* used for seeking */
GstFlowCombiner *flowcombiner;
gboolean have_group_id;
guint group_id;
/* for streaming mode */
gboolean streaming;
gboolean have_eos;
GstAdapter *adapter;
guint todrop;
/* some stream info for length */
gst_riff_avih *avih;
GstClockTime duration;
/* segment in TIME */
GstSegment segment;
guint32 segment_seqnum;
/* pending tags/events */
GstEvent *seg_event;
GstTagList *globaltags;
gboolean got_tags;
#if 0
/* gst index support */
GstIndex *element_index;
gint index_id;
#endif
gboolean seekable;
guint64 first_movi_offset;
guint64 idx1_offset; /* offset in file of list/chunk after movi */
GstEvent *seek_event;
gboolean building_index;
guint odml_stream;
guint odml_subidx;
guint64 *odml_subidxs;
guint64 seek_kf_offset; /* offset of the keyframe to which we want to seek */
} GstAviDemux;
typedef struct _GstAviDemuxClass {
GstElementClass parent_class;
} GstAviDemuxClass;
GType gst_avi_demux_get_type (void);
G_END_DECLS
#endif /* __GST_AVI_DEMUX_H__ */
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