comparison: src/mediastreamer/msAlawenc.h
src/mediastreamer/msAlawenc.h
- branch
- gaim
- changeset 20470
- 77693555855f
- parent 13071
- b98e72d4089a
- parent 20469
- b2836a24d81e
- child 20471
- 1966704b3e42
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| 13071:b98e72d4089a | 20470:77693555855f |
|---|---|
| 1 /* | |
| 2 The mediastreamer library aims at providing modular media processing and I/O | |
| 3 for linphone, but also for any telephony application. | |
| 4 Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org | |
| 5 | |
| 6 This library is free software; you can redistribute it and/or | |
| 7 modify it under the terms of the GNU Lesser General Public | |
| 8 License as published by the Free Software Foundation; either | |
| 9 version 2.1 of the License, or (at your option) any later version. | |
| 10 | |
| 11 This library is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 Lesser General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU Lesser General Public | |
| 17 License along with this library; if not, write to the Free Software | |
| 18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 19 */ | |
| 20 | |
| 21 #ifndef MSALAWENCODER_H | |
| 22 #define MSALAWENCODER_H | |
| 23 | |
| 24 #include "mscodec.h" | |
| 25 | |
| 26 | |
| 27 /*this is the class that implements a ALAWencoder filter*/ | |
| 28 | |
| 29 #define MSALAWENCODER_MAX_INPUTS 1 /* max output per filter*/ | |
| 30 | |
| 31 | |
| 32 typedef struct _MSALAWEncoder | |
| 33 { | |
| 34 /* the MSALAWEncoder derivates from MSFilter, so the MSFilter object MUST be the first of the MSALAWEncoder object | |
| 35 in order to the object mechanism to work*/ | |
| 36 MSFilter filter; | |
| 37 MSFifo *f_inputs[MSALAWENCODER_MAX_INPUTS]; | |
| 38 MSFifo *f_outputs[MSALAWENCODER_MAX_INPUTS]; | |
| 39 } MSALAWEncoder; | |
| 40 | |
| 41 typedef struct _MSALAWEncoderClass | |
| 42 { | |
| 43 /* the MSALAWEncoder derivates from MSFilter, so the MSFilter class MUST be the first of the MSALAWEncoder class | |
| 44 in order to the class mechanism to work*/ | |
| 45 MSFilterClass parent_class; | |
| 46 } MSALAWEncoderClass; | |
| 47 | |
| 48 /* PUBLIC */ | |
| 49 #define MS_ALAWENCODER(filter) ((MSALAWEncoder*)(filter)) | |
| 50 #define MS_ALAWENCODER_CLASS(klass) ((MSALAWEncoderClass*)(klass)) | |
| 51 MSFilter * ms_ALAWencoder_new(void); | |
| 52 | |
| 53 /* FOR INTERNAL USE*/ | |
| 54 void ms_ALAWencoder_init(MSALAWEncoder *r); | |
| 55 void ms_ALAWencoder_class_init(MSALAWEncoderClass *klass); | |
| 56 void ms_ALAWencoder_destroy( MSALAWEncoder *obj); | |
| 57 void ms_ALAWencoder_process(MSALAWEncoder *r); | |
| 58 | |
| 59 /* tuning parameters :*/ | |
| 60 #define ALAW_ENCODER_WMAXGRAN 160 | |
| 61 #define ALAW_ENCODER_RMAXGRAN 320 | |
| 62 | |
| 63 | |
| 64 #endif |
