/* * 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__ */