| /* |
| The mediastreamer library aims at providing modular media processing and I/O |
| for linphone, but also for any telephony application. |
| Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| |
| #ifndef MSLPC10ENCODER_H |
| #define MSLPC10ENCODER_H |
| |
| #include "mscodec.h" |
| |
| |
| int |
| read_16bit_samples(gint16 int16samples[], float speech[], int n); |
| |
| int |
| write_16bit_samples(gint16 int16samples[], float speech[], int n); |
| |
| void |
| write_bits(unsigned char *data, gint32 *bits, int len); |
| |
| int |
| read_bits(unsigned char *data, gint32 *bits, int len); |
| |
| |
| /*this is the class that implements a LPC10encoder filter*/ |
| |
| #define MSLPC10ENCODER_MAX_INPUTS 1 /* max output per filter*/ |
| |
| |
| typedef struct _MSLPC10Encoder |
| { |
| /* the MSLPC10Encoder derivates from MSFilter, so the MSFilter object MUST be the first of the MSLPC10Encoder object |
| in order to the object mechanism to work*/ |
| MSFilter filter; |
| MSFifo *f_inputs[MSLPC10ENCODER_MAX_INPUTS]; |
| MSFifo *f_outputs[MSLPC10ENCODER_MAX_INPUTS]; |
| struct lpc10_encoder_state *lpc10_enc; |
| } MSLPC10Encoder; |
| |
| typedef struct _MSLPC10EncoderClass |
| { |
| /* the MSLPC10Encoder derivates from MSFilter, so the MSFilter class MUST be the first of the MSLPC10Encoder class |
| in order to the class mechanism to work*/ |
| MSFilterClass parent_class; |
| } MSLPC10EncoderClass; |
| |
| /* PUBLIC */ |
| #define MS_LPC10ENCODER(filter) ((MSLPC10Encoder*)(filter)) |
| #define MS_LPC10ENCODER_CLASS(klass) ((MSLPC10EncoderClass*)(klass)) |
| MSFilter * ms_LPC10encoder_new(void); |
| |
| /* FOR INTERNAL USE*/ |
| void ms_LPC10encoder_init(MSLPC10Encoder *r); |
| void ms_LPC10encoder_class_init(MSLPC10EncoderClass *klass); |
| void ms_LPC10encoder_destroy( MSLPC10Encoder *obj); |
| void ms_LPC10encoder_process(MSLPC10Encoder *r); |
| |
| #endif |