/* * G.726 plugin codec for OpenH323/OPAL * * Copyright (C) 2004 Post Increment, All Rights Reserved * * The contents of this file are subject to the Mozilla Public License * Version 1.0 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See * the License for the specific language governing rights and limitations * under the License. * * The Original Code is Open H323 Library. * * The Initial Developer of the Original Code is Post Increment * * Contributor(s): ______________________________________. * * $Revision: 20629 $ * $Author: rjongbloed $ * $Date: 2008-07-28 07:57:33 +0000 (Mon, 28 Jul 2008) $ */ #define _CRT_NONSTDC_NO_DEPRECATE 1 #define _CRT_SECURE_NO_WARNINGS 1 #include #include #include #ifndef PLUGIN_CODEC_DLL_EXPORTS #include "plugin-config.h" #endif #include #include "g726/g72x.h" #define SAMPLES_PER_FRAME 8 #define MAX_FRAMES_PER_PACKET 240 // Really milliseconds #define PREF_FRAMES_PER_PACKET 30 // Really milliseconds #define PAYLOAD_CODE 0 // used to be 2, uses dynamic payload type (RFC 3551) ///////////////////////////////////////////////////////////////////////////// static void * create_codec(const struct PluginCodec_Definition * codec) { struct g726_state_s * g726 = malloc(sizeof (struct g726_state_s)); g726_init_state(g726); return g726; } static void destroy_codec(const struct PluginCodec_Definition * codec, void * _context) { free(_context); } ///////////////////////////////////////////////////////////////////////////// #define define_encoder(func, coder) \ static int func(const struct PluginCodec_Definition * codec, \ void * _context, \ const void * from, \ unsigned * fromLen, \ void * to, \ unsigned * toLen, \ unsigned int * flag) \ { \ int sample = *(short *)from; \ *(int *)to = coder(sample, AUDIO_ENCODING_LINEAR, (struct g726_state_s *)_context); \ return 1; \ } \ #define define_decoder(func, coder) \ static int func(const struct PluginCodec_Definition * codec, \ void * _context, \ const void * from, \ unsigned * fromLen, \ void * to, \ unsigned * toLen, \ unsigned int * flag) \ { \ int sample = coder(*(int *)from, AUDIO_ENCODING_LINEAR, (struct g726_state_s *)_context); \ *(short *)to = (short)sample; \ return 1; \ } \ define_encoder(encoder_40, g726_40_encoder) define_decoder(decoder_40, g726_40_decoder) define_encoder(encoder_32, g726_32_encoder) define_decoder(decoder_32, g726_32_decoder) define_encoder(encoder_24, g726_24_encoder) define_decoder(decoder_24, g726_24_decoder) define_encoder(encoder_16, g726_16_encoder) define_decoder(decoder_16, g726_16_decoder) ///////////////////////////////////////////////////////////////////////////// static struct PluginCodec_information licenseInfo = { 1084181196, // timestamp = Mon 10 May 2004 09:26:36 AM UTC "Craig Southeren, Post Increment", // source code author "1.0", // source code version "craigs@postincrement.com", // source code email "http://www.postincrement.com", // source code URL "Copyright (C) 2004 by Post Increment, All Rights Reserved", // source code copyright "MPL 1.0", // source code license PluginCodec_License_MPL, // source code license "CCITT Recommendation G.721", // codec description "Sun Microsystems, Inc.", // codec author NULL, // codec version NULL, // codec email NULL, // codec URL "This source code is a product of Sun Microsystems, Inc. and is provided\n" "for unrestricted use. Users may copy or modify this source code without charge", // codec copyright information NULL, // codec license PluginCodec_Licence_None // codec license code }; ///////////////////////////////////////////////////////////////////////////// static const char L16Desc[] = { "L16" }; static const char sdpG726_16[] = { "G726-16" }; static const char sdpG726_24[] = { "G726-24" }; static const char sdpG726_32[] = { "G726-32" }; static const char sdpG726_40[] = { "G726-40" }; static const char g726_40[] = "G.726-40k"; static const char g726_32[] = "G.726-32k"; static const char g726_24[] = "G.726-24k"; static const char g726_16[] = "G.726-16k"; ///////////////////////////////////////////////////////////////////////////// #define EQUIVALENCE_COUNTRY_CODE 9 #define EQUIVALENCE_EXTENSION_CODE 0 #define EQUIVALENCE_MANUFACTURER_CODE 61 static struct PluginCodec_H323NonStandardCodecData g726_40_Cap = { NULL, EQUIVALENCE_COUNTRY_CODE, EQUIVALENCE_EXTENSION_CODE, EQUIVALENCE_MANUFACTURER_CODE, (const unsigned char *)g726_40, sizeof(g726_40)-1, NULL }; static struct PluginCodec_H323NonStandardCodecData g726_32_Cap = { NULL, EQUIVALENCE_COUNTRY_CODE, EQUIVALENCE_EXTENSION_CODE, EQUIVALENCE_MANUFACTURER_CODE, (const unsigned char *)g726_32, sizeof(g726_32)-1, NULL }; static struct PluginCodec_H323NonStandardCodecData g726_24_Cap = { NULL, EQUIVALENCE_COUNTRY_CODE, EQUIVALENCE_EXTENSION_CODE, EQUIVALENCE_MANUFACTURER_CODE, (const unsigned char *)g726_24, sizeof(g726_24)-1, NULL }; static struct PluginCodec_H323NonStandardCodecData g726_16_Cap = { NULL, EQUIVALENCE_COUNTRY_CODE, EQUIVALENCE_EXTENSION_CODE, EQUIVALENCE_MANUFACTURER_CODE, (const unsigned char *)g726_16, sizeof(g726_16)-1, NULL }; static struct PluginCodec_Definition g726CodecDefn[] = { { // encoder 40k PLUGIN_CODEC_VERSION, // codec API version &licenseInfo, // license information PluginCodec_MediaTypeAudioStreamed | // audio codec (5 << PluginCodec_BitsPerSamplePos) | // bits per sample PluginCodec_InputTypeRaw | // raw input data PluginCodec_OutputTypeRaw | // raw output data PluginCodec_RTPTypeDynamic, // dynamic RTP type g726_40, // text decription L16Desc, // source format g726_40, // destination format 0, // user data 8000, // samples per second 40000, // raw bits per second 1000, // nanoseconds per frame {{ SAMPLES_PER_FRAME, // samples per frame 5, // bytes per frame PREF_FRAMES_PER_PACKET, // recommended number of frames per packet MAX_FRAMES_PER_PACKET, // maximum number of frames per packe }}, PAYLOAD_CODE, // IANA RTP payload code sdpG726_40, // RTP payload name create_codec, // create codec function destroy_codec, // destroy codec encoder_40, // encode/decode NULL, // codec controls PluginCodec_H323Codec_nonStandard, // h323CapabilityType &g726_40_Cap // h323CapabilityData }, { // decoder 40k PLUGIN_CODEC_VERSION, // codec API version &licenseInfo, // license information PluginCodec_MediaTypeAudioStreamed | // audio codec (5 << PluginCodec_BitsPerSamplePos) | // bits per sample PluginCodec_InputTypeRaw | // raw input data PluginCodec_OutputTypeRaw | // raw output data PluginCodec_RTPTypeDynamic, // dynamic RTP type g726_40, // text decription g726_40, // source format L16Desc, // destination format 0, // user data 8000, // samples per second 40000, // raw bits per second 1000, // nanoseconds per frame {{ SAMPLES_PER_FRAME, // samples per frame 5, // bytes per frame PREF_FRAMES_PER_PACKET, // recommended number of frames per packet MAX_FRAMES_PER_PACKET, // maximum number of frames per packe }}, PAYLOAD_CODE, // IANA RTP payload code sdpG726_40, // RTP payload name create_codec, // create codec function destroy_codec, // destroy codec decoder_40, // encode/decode NULL, // codec controls PluginCodec_H323Codec_nonStandard, // h323CapabilityType &g726_40_Cap // h323CapabilityData }, //////////////////////////////////// { // encoder 32k PLUGIN_CODEC_VERSION, // codec API version &licenseInfo, // license information PluginCodec_MediaTypeAudioStreamed | // audio codec (4 << PluginCodec_BitsPerSamplePos) | // bits per sample PluginCodec_InputTypeRaw | // raw input data PluginCodec_OutputTypeRaw | // raw output data PluginCodec_RTPTypeDynamic, // dynamic RTP type g726_32, // text decription L16Desc, // source format g726_32, // destination format 0, // user data 8000, // samples per second 32000, // raw bits per second 1000, // nanoseconds per frame SAMPLES_PER_FRAME, // samples per frame 4, // bytes per frame PREF_FRAMES_PER_PACKET, // recommended number of frames per packet MAX_FRAMES_PER_PACKET, // maximum number of frames per packe PAYLOAD_CODE, // IANA RTP payload code sdpG726_32, // RTP payload name create_codec, // create codec function destroy_codec, // destroy codec encoder_32, // encode/decode NULL, // codec controls PluginCodec_H323Codec_nonStandard, // h323CapabilityType &g726_32_Cap // h323CapabilityData }, { // decoder 32k PLUGIN_CODEC_VERSION, // codec API version &licenseInfo, // license information PluginCodec_MediaTypeAudioStreamed | // audio codec (4 << PluginCodec_BitsPerSamplePos) | // bits per sample PluginCodec_InputTypeRaw | // raw input data PluginCodec_OutputTypeRaw | // raw output data PluginCodec_RTPTypeDynamic, // dynamic RTP type g726_32, // text decription g726_32, // source format L16Desc, // destination format 0, // user data 8000, // samples per second 32000, // raw bits per second 1000, // nanoseconds per frame SAMPLES_PER_FRAME, // samples per frame 4, // bytes per frame PREF_FRAMES_PER_PACKET, // recommended number of frames per packet MAX_FRAMES_PER_PACKET, // maximum number of frames per packe PAYLOAD_CODE, // IANA RTP payload code sdpG726_32, // RTP payload name create_codec, // create codec function destroy_codec, // destroy codec decoder_32, // encode/decode NULL, // codec controls PluginCodec_H323Codec_nonStandard, // h323CapabilityType &g726_32_Cap // h323CapabilityData }, //////////////////////////////////// { // encoder 24k PLUGIN_CODEC_VERSION, // codec API version &licenseInfo, // license information PluginCodec_MediaTypeAudioStreamed | // audio codec (3 << PluginCodec_BitsPerSamplePos) | // bits per sample PluginCodec_InputTypeRaw | // raw input data PluginCodec_OutputTypeRaw | // raw output data PluginCodec_RTPTypeDynamic, // dynamic RTP type g726_24, // text decription L16Desc, // source format g726_24, // destination format 0, // user data 8000, // samples per second 24000, // raw bits per second 1000, // nanoseconds per frame SAMPLES_PER_FRAME, // samples per frame 3, // bytes per frame PREF_FRAMES_PER_PACKET, // recommended number of frames per packet MAX_FRAMES_PER_PACKET, // maximum number of frames per packe PAYLOAD_CODE, // IANA RTP payload code sdpG726_24, // RTP payload name create_codec, // create codec function destroy_codec, // destroy codec encoder_24, // encode/decode NULL, // codec controls PluginCodec_H323Codec_nonStandard, // h323CapabilityType &g726_24_Cap // h323CapabilityData }, { // decoder 24k PLUGIN_CODEC_VERSION, // codec API version &licenseInfo, // license information PluginCodec_MediaTypeAudioStreamed | // audio codec (3 << PluginCodec_BitsPerSamplePos) | // bits per sample PluginCodec_InputTypeRaw | // raw input data PluginCodec_OutputTypeRaw | // raw output data PluginCodec_RTPTypeDynamic, // dynamic RTP type g726_24, // text decription g726_24, // source format L16Desc, // destination format 0, // user data 8000, // samples per second 24000, // raw bits per second 1000, // nanoseconds per frame SAMPLES_PER_FRAME, // samples per frame 3, // bytes per frame PREF_FRAMES_PER_PACKET, // recommended number of frames per packet MAX_FRAMES_PER_PACKET, // maximum number of frames per packe PAYLOAD_CODE, // IANA RTP payload code sdpG726_32, // RTP payload name create_codec, // create codec function destroy_codec, // destroy codec decoder_24, // encode/decode NULL, // codec controls PluginCodec_H323Codec_nonStandard, // h323CapabilityType &g726_24_Cap // h323CapabilityData }, //////////////////////////////////// { // encoder 16k PLUGIN_CODEC_VERSION, // codec API version &licenseInfo, // license information PluginCodec_MediaTypeAudioStreamed | // audio codec (2 << PluginCodec_BitsPerSamplePos) | // bits per sample PluginCodec_InputTypeRaw | // raw input data PluginCodec_OutputTypeRaw | // raw output data PluginCodec_RTPTypeDynamic, // dynamic RTP type g726_16, // text decription L16Desc, // source format g726_16, // destination format 0, // user data 8000, // samples per second 16000, // raw bits per second 1000, // nanoseconds per frame SAMPLES_PER_FRAME, // samples per frame 2, // bytes per frame PREF_FRAMES_PER_PACKET, // recommended number of frames per packet MAX_FRAMES_PER_PACKET, // maximum number of frames per packe PAYLOAD_CODE, // IANA RTP payload code sdpG726_16, // RTP payload name create_codec, // create codec function destroy_codec, // destroy codec encoder_16, // encode/decode NULL, // codec controls PluginCodec_H323Codec_nonStandard, // h323CapabilityType &g726_16_Cap // h323CapabilityData }, { // decoder 16k PLUGIN_CODEC_VERSION, // codec API version &licenseInfo, // license information PluginCodec_MediaTypeAudioStreamed | // audio codec (2 << PluginCodec_BitsPerSamplePos) | // bits per sample PluginCodec_InputTypeRaw | // raw input data PluginCodec_OutputTypeRaw | // raw output data PluginCodec_RTPTypeDynamic, // dynamic RTP type g726_16, // text decription g726_16, // source format L16Desc, // destination format 0, // user data 8000, // samples per second 16000, // raw bits per second 1000, // nanoseconds per frame SAMPLES_PER_FRAME, // samples per frame 2, // bytes per frame PREF_FRAMES_PER_PACKET, // recommended number of frames per packet MAX_FRAMES_PER_PACKET, // maximum number of frames per packe PAYLOAD_CODE, // IANA RTP payload code sdpG726_16, // RTP payload name create_codec, // create codec function destroy_codec, // destroy codec decoder_16, // encode/decode NULL, // codec controls PluginCodec_H323Codec_nonStandard, // h323CapabilityType &g726_16_Cap // h323CapabilityData } }; PLUGIN_CODEC_IMPLEMENT_ALL(G726, g726CodecDefn, PLUGIN_CODEC_VERSION) /////////////////////////////////////////////////////////////////////////////