1 /*
2 * encoder.h --
3 *
4 * FIXME: This file needs a description here.
5 *
6 * Copyright (c) 1995-2002 The Regents of the University of California.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 * A. Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 * B. Redistributions in binary form must reproduce the above copyright notice,
15 * this list of conditions and the following disclaimer in the documentation
16 * and/or other materials provided with the distribution.
17 * C. Neither the names of the copyright holders nor the names of its
18 * contributors may be used to endorse or promote products derived from this
19 * software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
22 * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 * @(#) $Header: /usr/mash/src/repository/mash/mash-1/audio/encoder.h,v 1.10 2003/11/19 19:20:14 aswan Exp $
34 */
35
36 #include "tclcl.h"
37 #include "codec/module.h"
38
39 class RTP_BufferPool;
40
41 class PCM_Encoder : public SourceModule {
42 public:
43 PCM_Encoder();
44 virtual void encode(u_int32_t ts, u_int8_t* samples, int cc);
45 virtual void recv(Buffer* b);
46 virtual int command(int argc, const char*const* argv);
47 protected:
48 RTP_BufferPool* pool_;
49 u_int32_t last_ts_;
50 };
51
52 class NullAudioEncoder : public PCM_Encoder
53 {
54 public:
55 NullAudioEncoder();
56
57 virtual void recv(Buffer* /* b */) {};
58 virtual void encode(u_int32_t /* ts */, u_int8_t* /* samples */,
59 int /* cc */) {};
60 };
61
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