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/*
* Copyright (c) 1993-1994 Regents of the University of California.
* 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.
*/
#ifndef lint
static char rcsid[] =
"@(#) $Header: /cs/research/mice/starship/src/local/CVS_repository/vic/encoder-raw.cc,v 1.1 1998/11/17 13:27:51 ucackha Exp $ (LBL)";
#endif
#include "transmitter.h"
#include "module.h"
class RawEncoder : public TransmitterModule {
public:
RawEncoder();
~RawEncoder();
void setq(int q);
virtual int consume(const VideoFrame*);
int command(int argc, const char*const* argv);
};
static class RawEncoderMatcher : public Matcher {
public:
RawEncoderMatcher() : Matcher("module") {}
TclObject* match(const char* fmt) {
if (strcasecmp(fmt, "raw") == 0)
return (new RawEncoder);
return (0);
}
} framer_matcher_raw;
RawEncoder::RawEncoder() : TransmitterModule(FT_RAW)
{
}
RawEncoder::~RawEncoder()
{
if (tx_ != 0)
tx_->flush();
}
#define HLEN (sizeof(jpeghdr) + sizeof(rtphdr))
int RawEncoder::consume(const VideoFrame* vf)
{
YuvFrame* p = (YuvFrame*)vf;
/* make sure the last frame is completely transmitted */
tx_->flush();
int tot = strlen((const char*)vf->bp_);
int size = tot;
int off = 0;
int payload = tx_->mtu() - HLEN;
while (off < size) {
Transmitter::pktbuf* pb = tx_->alloch(p->ts_, RTP_PT_RAW);
/* use a rtp/jpeg header */
rtphdr* rh = (rtphdr*)pb->hdr;
jpeghdr* h = (jpeghdr*)(rh + 1);
h->width = p->width_ >> 3;
h->height = p->height_ >> 3;
int cc = size - off;
if (cc > payload)
cc = payload;
else
/* RTP_M = last packet for this frame */
rh->rh_flags |= htons(RTP_M);
h->off = htonl(off);
pb->iov[0].iov_len = HLEN;
pb->iov[1].iov_base = (caddr_t)p->bp_ + off;
pb->iov[1].iov_len = cc;
/*XXX DEC C++ needs scope qualifier here */
tx_->send(pb);
tot += HLEN;
off += cc;
}
return (tot);
}
void
RawEncoder::setq(int q)
{
}
int
RawEncoder::command(int argc, const char*const* argv)
{
if (argc == 2 && strcmp(argv[1], "frame-format") == 0) {
Tcl& tcl = Tcl::instance();
tcl.result("422");
return (TCL_OK);
}
if (argc == 3 && strcmp(argv[1], "q") == 0) {
setq(atoi(argv[2]));
return (TCL_OK);
}
return (TransmitterModule::command(argc, argv));
}
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