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114 lines
3 KiB
C
114 lines
3 KiB
C
/*
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* GStreamer demultiplexer plugin for Interplay MVE movie files
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*
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* Copyright (C) 2006 Jens Granseuer <jensgr@gmx.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_MVE_DEMUX_H__
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#define __GST_MVE_DEMUX_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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G_BEGIN_DECLS
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#define GST_TYPE_MVE_DEMUX \
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(gst_mve_demux_get_type())
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#define GST_MVE_DEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MVE_DEMUX,GstMveDemux))
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#define GST_MVE_DEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MVE_DEMUX,GstMveDemuxClass))
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#define GST_IS_MVE_DEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MVE_DEMUX))
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#define GST_IS_MVE_DEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MVE_DEMUX))
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typedef struct _GstMveDemux GstMveDemux;
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typedef struct _GstMveDemuxClass GstMveDemuxClass;
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typedef struct _GstMveDemuxStream GstMveDemuxStream;
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struct _GstMveDemux
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{
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GstElement element;
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GstPad *sinkpad;
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GstMveDemuxStream *video_stream;
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GstMveDemuxStream *audio_stream;
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gint state;
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/* time per frame (1/framerate) */
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GstClockTime frame_duration;
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/* push based variables */
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guint16 needed_bytes;
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GstAdapter *adapter;
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/* size of current chunk */
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guint32 chunk_size;
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/* offset in current chunk */
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guint32 chunk_offset;
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};
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struct _GstMveDemuxClass
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{
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GstElementClass parent_class;
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};
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struct _GstMveDemuxStream {
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/* shared properties */
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GstCaps *caps;
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GstPad *pad;
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GstClockTime last_ts;
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gint64 offset;
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GstFlowReturn last_flow;
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/* video properties */
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guint16 width;
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guint16 height;
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guint8 bpp; /* bytes per pixel */
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guint8 *code_map;
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gboolean code_map_avail;
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guint8 *back_buf1;
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guint8 *back_buf2;
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guint32 max_block_offset;
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GstBuffer *palette;
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GstBuffer *buffer;
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/* audio properties */
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guint16 sample_rate;
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guint16 n_channels;
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guint16 sample_size;
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gboolean compression;
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};
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GType gst_mve_demux_get_type (void);
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int ipvideo_decode_frame8 (const GstMveDemuxStream * s,
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const unsigned char *data, unsigned short len);
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int ipvideo_decode_frame16 (const GstMveDemuxStream * s,
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const unsigned char *data, unsigned short len);
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void ipaudio_uncompress (short *buffer,
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unsigned short buf_len, const unsigned char *data, unsigned char channels);
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G_END_DECLS
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#endif /* __GST_MVE_DEMUX_H__ */
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