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/*
* Copyright (c) 1998-1999 Marcus Meissner and The Regents of the University of
* Erlangen.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and the Network Research Group at
* Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
class H263Decoder : public Decoder {
public:
H263Decoder();
~H263Decoder();
int colorhist(u_int* hist) const;
virtual void recv(const rtphdr* rh, const u_char* bp, int cc);
virtual void info(char* wrk) const;
protected:
int reassemble_gobs(u_char **newbp,int *newcc);
virtual void redraw();
/*
* Reassembly buffer 'slots' for resequencing & reassembling
* gobs split across packet boundaries.
*/
#define H263_SLOTS 64
#define H263_SLOTMASK (H263_SLOTS - 1)
int h263streamsize_; /* max streamsize */
u_char *h263stream_; /* h263stream */
struct slot {
u_short seqno;
u_int rtflags;
h263rtpheader_B h263rh;
u_int cc;
u_char* bp;
} slot_[H263_SLOTS];
u_char *frame_,*backframe_;
u_int srcformat_;
u_int inw_,inh_;
u_int lastknowngood_;
H263Global *h263decoder;
};
static class H263DecoderMatcher : public Matcher {
public:
H263DecoderMatcher() : Matcher("decoder") {}
TclObject* match(const char* id) {
if (strcasecmp(id, "h263") == 0)
return (new H263Decoder());
else
return (0);
}
} dm_h263;
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