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/*
* GStreamer demultiplexer plugin for Interplay MVE movie files
*
* Copyright (C) 2006 Jens Granseuer <jensgr@gmx.net>
*
* 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_MVE_DEMUX_H__
#define __GST_MVE_DEMUX_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#define GST_TYPE_MVE_DEMUX \
(gst_mve_demux_get_type())
#define GST_MVE_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MVE_DEMUX,GstMveDemux))
#define GST_MVE_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MVE_DEMUX,GstMveDemuxClass))
#define GST_IS_MVE_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MVE_DEMUX))
#define GST_IS_MVE_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MVE_DEMUX))
typedef struct _GstMveDemux GstMveDemux;
typedef struct _GstMveDemuxClass GstMveDemuxClass;
typedef struct _GstMveDemuxStream GstMveDemuxStream;
struct _GstMveDemux
{
GstElement element;
GstPad *sinkpad;
GstMveDemuxStream *video_stream;
GstMveDemuxStream *audio_stream;
gint state;
/* time per frame (1/framerate) */
GstClockTime frame_duration;
/* push based variables */
guint16 needed_bytes;
GstAdapter *adapter;
/* size of current chunk */
guint32 chunk_size;
/* offset in current chunk */
guint32 chunk_offset;
};
struct _GstMveDemuxClass
{
GstElementClass parent_class;
};
struct _GstMveDemuxStream {
/* shared properties */
GstCaps *caps;
GstPad *pad;
GstClockTime last_ts;
gint64 offset;
GstFlowReturn last_flow;
/* video properties */
guint16 width;
guint16 height;
guint8 bpp; /* bytes per pixel */
guint8 *code_map;
gboolean code_map_avail;
guint8 *back_buf1;
guint8 *back_buf2;
guint32 max_block_offset;
GstBuffer *palette;
GstBuffer *buffer;
/* audio properties */
guint16 sample_rate;
guint16 n_channels;
guint16 sample_size;
gboolean compression;
};
GType gst_mve_demux_get_type (void);
int ipvideo_decode_frame8 (const GstMveDemuxStream * s,
const unsigned char *data, unsigned short len);
int ipvideo_decode_frame16 (const GstMveDemuxStream * s,
const unsigned char *data, unsigned short len);
void ipaudio_uncompress (short *buffer,
unsigned short buf_len, const unsigned char *data, unsigned char channels);
G_END_DECLS
#endif /* __GST_MVE_DEMUX_H__ */
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