#if HAVE_CRT #define _CRTDBG_MAP_ALLOC #include <stdlib.h> #include <crtdbg.h> #endif //HAVE_CRT /* * Copyright (C) 2020, University of the Basque Country (UPV/EHU) * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com> * * The original file was part of Open Source Doubango Framework * Copyright (C) 2010-2011 Mamadou Diop. * Copyright (C) 2012 Doubango Telecom <http://doubango.org> * * This file is part of Open Source Doubango Framework. * * DOUBANGO is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * DOUBANGO 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with DOUBANGO. * */ /**@file tdav_codec_g711.c * @brief G.711u and G.711a (a.k.a PCMU and PCMA) codec plugins. * * @author Mamadou Diop <diopmamadou(at)doubango.org> * */ #include "tinydav/codecs/g711/tdav_codec_g711.h" #include "tinydav/codecs/g711/g711.h" /* algorithms */ #include "tsk_memory.h" #include "tsk_debug.h" /* ============ G.711u Plugin interface ================= */ #define tdav_codec_g711u_open tsk_null #define tdav_codec_g711u_close tsk_null #define tdav_codec_g711u_sdp_att_get tsk_null static tsk_size_t tdav_codec_g711u_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size) { register tsk_size_t i; register uint8_t* pout_data; register int16_t* pin_data; tsk_size_t out_size; if(!self || !in_data || !in_size || !out_data){ TSK_DEBUG_ERROR("Invalid parameter"); return 0; } out_size = (in_size >> 1); if(*out_max_size <out_size){ if(!(*out_data = tsk_realloc(*out_data, out_size))){ TSK_DEBUG_ERROR("Failed to allocate new buffer"); *out_max_size = 0; return 0; } *out_max_size = out_size; } pout_data = *out_data; pin_data = (int16_t*)in_data; for(i = 0; i<out_size; i++){ pout_data[i] = linear2ulaw(pin_data[i]); } return out_size; } static tsk_size_t tdav_codec_g711u_decode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size, const tsk_object_t* proto_hdr) { tsk_size_t i; tsk_size_t out_size; if(!self || !in_data || !in_size || !out_data){ TSK_DEBUG_ERROR("Invalid parameter"); return 0; } out_size = (in_size << 1); /* allocate new buffer */ if(*out_max_size<out_size){ if(!(*out_data = tsk_realloc(*out_data, out_size))){ TSK_DEBUG_ERROR("Failed to allocate new buffer"); *out_max_size = 0; return 0; } *out_max_size = out_size; } for(i = 0; i<in_size; i++){ ((short*)*out_data)[i] = ulaw2linear(((uint8_t*)in_data)[i]); } return out_size; } static tsk_bool_t tdav_codec_g711u_sdp_att_match(const tmedia_codec_t* codec, const char* att_name, const char* att_value) { /* always match */ return tsk_true; } // // G.711u Plugin definition // /* constructor */ static tsk_object_t* tdav_codec_g711u_ctor(tsk_object_t * self, va_list * app) { tdav_codec_g711u_t *g711u = self; if(g711u){ /* init base: called by tmedia_codec_create() */ /* init self */ } return self; } /* destructor */ static tsk_object_t* tdav_codec_g711u_dtor(tsk_object_t * self) { tdav_codec_g711u_t *g711u = self; if(g711u){ /* deinit base */ tmedia_codec_audio_deinit(g711u); /* deinit self */ } return self; } /* object definition */ static const tsk_object_def_t tdav_codec_g711u_def_s = { sizeof(tdav_codec_g711u_t), tdav_codec_g711u_ctor, tdav_codec_g711u_dtor, tmedia_codec_cmp, }; /* plugin definition*/ static const tmedia_codec_plugin_def_t tdav_codec_g711u_plugin_def_s = { &tdav_codec_g711u_def_s, tmedia_audio, tmedia_codec_id_pcmu, "PCMU", "G.711u codec (native)", TMEDIA_CODEC_FORMAT_G711u, tsk_false, 8000, // rate { /* audio */ 1, // channels 0 // ptime @deprecated }, /* video */ {0}, tsk_null, // set() tdav_codec_g711u_open, tdav_codec_g711u_close, tdav_codec_g711u_encode, tdav_codec_g711u_decode, tdav_codec_g711u_sdp_att_match, tdav_codec_g711u_sdp_att_get }; const tmedia_codec_plugin_def_t *tdav_codec_g711u_plugin_def_t = &tdav_codec_g711u_plugin_def_s; /* ============ G.711a Plugin interface ================= */ #define tdav_codec_g711a_open tsk_null #define tdav_codec_g711a_close tsk_null #define tdav_codec_g711a_sdp_att_get tsk_null static tsk_size_t tdav_codec_g711a_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size) { register tsk_size_t i; register uint8_t* pout_data; register int16_t* pin_data; tsk_size_t out_size; if(!self || !in_data || !in_size || !out_data){ TSK_DEBUG_ERROR("Invalid parameter"); return 0; } out_size = (in_size >> 1); if(*out_max_size < out_size){ if(!(*out_data = tsk_realloc(*out_data, out_size))){ TSK_DEBUG_ERROR("Failed to allocate new buffer"); *out_max_size = 0; return 0; } *out_max_size = out_size; } pout_data = *out_data; pin_data = (int16_t*)in_data; for(i = 0; i<out_size; i++){ pout_data[i] = linear2alaw(pin_data[i]); } return out_size; } #if 0 FILE* file = tsk_null; int count = 0; #endif static tsk_size_t tdav_codec_g711a_decode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size, const tsk_object_t* proto_hdr) { tsk_size_t i, out_size; if(!self || !in_data || !in_size || !out_data){ TSK_DEBUG_ERROR("Invalid parameter"); return 0; } out_size = (in_size << 1); #if 0 if(!file && count<=1000){ file = fopen("./g711a.pcm", "wb"); } #endif /* allocate new buffer */ if(*out_max_size < out_size){ if(!(*out_data = tsk_realloc(*out_data, out_size))){ TSK_DEBUG_ERROR("Failed to allocate new buffer"); *out_max_size = 0; return 0; } *out_max_size = out_size; } for(i = 0; i<in_size; i++){ ((short*)*out_data)[i] = alaw2linear(((uint8_t*)in_data)[i]); } #if 0 if(++count<=1000){ fwrite(*out_data, sizeof(short), in_size, file); } else if(file){ fclose(file); file = tsk_null; } #endif return out_size; } static tsk_bool_t tdav_codec_g711a_sdp_att_match(const tmedia_codec_t* codec, const char* att_name, const char* att_value) { /* always match */ return tsk_true; } // // G.711a Plugin definition // /* constructor */ static tsk_object_t* tdav_codec_g711a_ctor(tsk_object_t * self, va_list * app) { tdav_codec_g711a_t *g711a = self; if(g711a){ /* init base: called by tmedia_codec_create() */ /* init self */ } return self; } /* destructor */ static tsk_object_t* tdav_codec_g711a_dtor(tsk_object_t * self) { tdav_codec_g711a_t *g711a = self; if(g711a){ /* deinit base */ tmedia_codec_audio_deinit(g711a); /* deinit self */ } return self; } /* object definition */ static const tsk_object_def_t tdav_codec_g711a_def_s = { sizeof(tdav_codec_g711a_t), tdav_codec_g711a_ctor, tdav_codec_g711a_dtor, tmedia_codec_cmp, }; /* plugin definition*/ static const tmedia_codec_plugin_def_t tdav_codec_g711a_plugin_def_s = { &tdav_codec_g711a_def_s, tmedia_audio, tmedia_codec_id_pcma, "PCMA", "G.711a codec (native)", TMEDIA_CODEC_FORMAT_G711a, tsk_false, 8000, // rate { /* audio */ 1, // channels 0 // ptime @deprecated }, /* video */ {0}, tsk_null, // set() tdav_codec_g711a_open, tdav_codec_g711a_close, tdav_codec_g711a_encode, tdav_codec_g711a_decode, tdav_codec_g711a_sdp_att_match, tdav_codec_g711a_sdp_att_get }; const tmedia_codec_plugin_def_t *tdav_codec_g711a_plugin_def_t = &tdav_codec_g711a_plugin_def_s;