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/* 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_QTDEMUX_H__
#define __GST_QTDEMUX_H__
#include <gst/gst.h>
#include <gst/bytestream/bytestream.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_QTDEMUX \
(gst_qtdemux_get_type())
#define GST_QTDEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_QTDEMUX,GstQTDemux))
#define GST_QTDEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_QTDEMUX,GstQTDemux))
#define GST_IS_QTDEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_QTDEMUX))
#define GST_IS_QTDEMUX_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_QTDEMUX))
#define GST_QTDEMUX_MAX_AUDIO_PADS 8
#define GST_QTDEMUX_MAX_VIDEO_PADS 8
/*
* smartass macross that turns guint32 into sequence of bytes separated with comma
* to be used in printf("%c%c%c%c",GST_FOURCC_TO_CHARSEQ(fourcc)) fashion
*/
#define GST_FOURCC_TO_CHARSEQ(f) f&0xff, (f>>8)&0xff , (f>>16)&0xff, f>>24
typedef struct _GstQTDemux GstQTDemux;
typedef struct _GstQTDemuxClass GstQTDemuxClass;
typedef struct {
guint64 start;
guint64 size; /* if 0, lasts till the end of file */
guint32 type;
} GstQtpAtom;
typedef struct {
guint32 size;
guint32 type;
} GstQtpAtomMinHeader;
#define GST_QTP_CONTAINER_ATOM 1
typedef void GstQtpAtomTypeHandler (GstQTDemux * qtdemux,GstQtpAtom * atom,gboolean enter);
typedef struct {
guint32 flags;
GstQtpAtomTypeHandler * handler;
} GstQtpAtomType;
typedef struct {
guint64 offset;
guint32 size;
guint32 timestamp;
struct _GstQtpTrack * track;
} GstQtpSample;
typedef struct _GstQtpTrack {
guint32 format;
guint32 width;
guint32 height;
guint32 time_scale; /* units per second */
guint32 sample_duration; /* units in sample */
/* temporary buffers with sample tables */
GstBuffer * stsd, * stts, * stsc, * stsz, * stco;
/* this track samples in array */
GstQtpSample * samples;
GstPad * pad;
} GstQtpTrack;
typedef struct {
guint32 size;
guint32 format;
char reserved[6];
guint16 dataref;
} __attribute__((packed)) /* FIXME may it wasn't necessary? */ GstQtpStsdRec;
typedef struct {
guint32 size;
guint32 format;
char reserved[6];
guint16 dataref;
guint16 version;
guint16 rev_level;
guint32 vendor;
guint32 temporal_quality;
guint32 spatial_quality;
guint16 width;
guint16 height;
guint32 hres;
guint32 vres;
guint32 data_size;
guint16 frame_count; /* frames per sample */
guint32 compressor_name;
guint16 depth;
guint16 color_table_id;
} __attribute__((packed)) /* FIXME may it wasn't necessary? */ GstQtpStsdVideRec;
typedef struct {
guint32 count;
guint32 duration;
} GstQtpSttsRec;
typedef struct {
guint32 first_chunk;
guint32 samples_per_chunk;
guint32 sample_desc;
} GstQtpStscRec;
struct _GstQTDemux {
GstElement element;
/* pads */
GstPad *sinkpad;
GstPad *video_pad[GST_QTDEMUX_MAX_VIDEO_PADS];
int num_video_pads;
GstByteStream *bs;
guint64 bs_pos; /* current position in bs (coz bs won't tell) */
/*
* nesting stack: everytime parser reads a header
* of a container atom it is added to the stack until
* and removed whenever it's over (read completely)
*/
GSList * nested;
int nested_cnt; /* just to make it simpler */
GList * tracks;
GTree * samples; /* samples of all the tracks ordered by the offset */
};
struct _GstQTDemuxClass {
GstElementClass parent_class;
};
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_QTDEMUX_H__ */
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