#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_t140.c * @brief T140 codec implementation (RFC 4103) */ #include "tinydav/codecs/t140/tdav_codec_t140.h" #include "tsk_string.h" #include "tsk_memory.h" #include "tsk_debug.h" // RFC 4103 - 6. Parameter for Character Transmission Rate #define TDAV_CODEC_T140_CPS 30 static int tdav_codec_t140_set(tmedia_codec_t* self, const struct tmedia_param_s* param) { return 0; } static int tdav_codec_t140_open(tmedia_codec_t* self) { return 0; } static int tdav_codec_t140_close(tmedia_codec_t* self) { return 0; } static tsk_size_t tdav_codec_t140_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size) { tsk_size_t out_size = in_size; if(!self || !in_data || !in_size || !out_data){ TSK_DEBUG_ERROR("Invalid parameter"); return 0; } 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; } memcpy(*out_data, in_data, out_size); return out_size; } static tsk_size_t tdav_codec_t140_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 out_size = in_size; if(!self || !in_data || !in_size || !out_data){ TSK_DEBUG_ERROR("Invalid parameter"); return 0; } /* 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; } memcpy(*out_data, in_data, out_size); return out_size; } static tsk_bool_t tdav_codec_t140_sdp_att_match(const tmedia_codec_t* self, const char* att_name, const char* att_value) { return tsk_true; } static char* tdav_codec_t140_sdp_att_get(const tmedia_codec_t* self, const char* att_name) { if(!self || !att_name){ TSK_DEBUG_ERROR("Invalid parameter"); return tsk_null; } if(tsk_striequals("fmtp", att_name)){ char* fmtp = tsk_null; tsk_sprintf(&fmtp, "cps=%d", TDAV_CODEC_T140_CPS); return fmtp; } return tsk_null; } // // G.711u Plugin definition // /* constructor */ static tsk_object_t* tdav_codec_t140_ctor(tsk_object_t * self, va_list * app) { tdav_codec_t140_t *t140 = self; if(t140){ /* init base: called by tmedia_codec_create() */ /* init self */ } return self; } /* destructor */ static tsk_object_t* tdav_codec_t140_dtor(tsk_object_t * self) { tdav_codec_t140_t *t140 = self; if(t140){ /* deinit base */ /* deinit self */ } return self; } /* object definition */ static const tsk_object_def_t tdav_codec_t140_def_s = { sizeof(tdav_codec_t140_t), tdav_codec_t140_ctor, tdav_codec_t140_dtor, tmedia_codec_cmp, }; /* plugin definition*/ static const tmedia_codec_plugin_def_t tdav_codec_t140_plugin_def_s = { &tdav_codec_t140_def_s, tmedia_t140, tmedia_codec_id_t140, "t140", "T140 codec (From tinyDAV)", TMEDIA_CODEC_FORMAT_T140, tsk_true, 1000, // rate /* audio */ {0}, /* video */ {0}, tdav_codec_t140_set, tdav_codec_t140_open, tdav_codec_t140_close, tdav_codec_t140_encode, tdav_codec_t140_decode, tdav_codec_t140_sdp_att_match, tdav_codec_t140_sdp_att_get }; const tmedia_codec_plugin_def_t *tdav_codec_t140_plugin_def_t = &tdav_codec_t140_plugin_def_s;