diff --git a/src/mod/codecs/mod_codec2/Makefile b/src/mod/codecs/mod_codec2/Makefile new file mode 100644 index 0000000000..87cb1af348 --- /dev/null +++ b/src/mod/codecs/mod_codec2/Makefile @@ -0,0 +1,14 @@ +BASE=../../../.. + +CODEC2_DIR=$(switch_srcdir)/libs/libcodec2-1.0 +CODEC2_BUILDDIR=$(switch_builddir)/libs/libcodec2-1.0 +CODEC2LA=$(CODEC2_BUILDDIR)/src/libcodec2.la + +LOCAL_CFLAGS=-I$(CODEC2_DIR)/include -I$(CODEC2_BUILDDIR)/src +LOCAL_LIBADD=$(CODEC2LA) +include $(BASE)/build/modmake.rules + +$(CODEC2LA): $(CODEC2_DIR) $(CODEC2_DIR)/.update + cd $(CODEC2_BUILDDIR) && $(MAKE) + $(TOUCH_TARGET) + diff --git a/src/mod/codecs/mod_codec2/mod_codec2.c b/src/mod/codecs/mod_codec2/mod_codec2.c new file mode 100644 index 0000000000..65780e8a74 --- /dev/null +++ b/src/mod/codecs/mod_codec2/mod_codec2.c @@ -0,0 +1,161 @@ +/* + * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application + * Copyright (C) 2005-2010, Anthony Minessale II + * + * Version: MPL 1.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (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 FreeSWITCH Modular Media Switching Software Library + * + * The Initial Developer of the Original Code is + * Brian West + * Portions created by the Initial Developer are Copyright (C) + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * mod_codec2 -- FreeSWITCH CODEC2 Module + * + */ + +#include +#include + +SWITCH_MODULE_LOAD_FUNCTION(mod_codec2_load); + +SWITCH_MODULE_DEFINITION(mod_codec2, mod_codec2_load, NULL, NULL); + +struct codec2_context { + void *encoder; + void *decoder; +}; + +static switch_status_t switch_codec2_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings) +{ + uint32_t encoding, decoding; + struct codec2_context *context = NULL; + + encoding = (flags & SWITCH_CODEC_FLAG_ENCODE); + decoding = (flags & SWITCH_CODEC_FLAG_DECODE); + + if (!(encoding || decoding)) { + return SWITCH_STATUS_FALSE; + } + + if (!(context = switch_core_alloc(codec->memory_pool, sizeof(*context)))) { + return SWITCH_STATUS_FALSE; + } + context->encoder = codec2_create(); + context->decoder = codec2_create(); + + codec->private_info = context; + + return SWITCH_STATUS_SUCCESS; +} + +static switch_status_t switch_codec2_encode(switch_codec_t *codec, switch_codec_t *other_codec, + void *decoded_data, + uint32_t decoded_data_len, + uint32_t decoded_rate, + void *encoded_data, + uint32_t *encoded_data_len, + uint32_t *encoded_rate, + unsigned int *flag) +{ + struct codec2_context *context = codec->private_info; + + switch_assert(decoded_data_len == 160 * 2); + + codec2_encode(context->encoder, encoded_data, decoded_data); + + *encoded_data_len = 7; /* 51 bits */ + *encoded_rate = 8000; + + return SWITCH_STATUS_SUCCESS; +} + +static switch_status_t switch_codec2_decode(switch_codec_t *codec, + switch_codec_t *other_codec, + void *encoded_data, + uint32_t encoded_data_len, + uint32_t encoded_rate, + void *decoded_data, + uint32_t *decoded_data_len, + uint32_t *decoded_rate, + unsigned int *flag) +{ + struct codec2_context *context = codec->private_info; + + switch_assert(encoded_data_len == 7); + + codec2_encode(context->decoder, decoded_data, encoded_data); + + *decoded_data_len = 160 * 2; /* 160 samples */ + *decoded_rate = 8000; + + return SWITCH_STATUS_SUCCESS; +} + +static switch_status_t switch_codec2_destroy(switch_codec_t *codec) +{ + struct codec2_context *context = codec->private_info; + + codec2_destroy(context->encoder); + codec2_destroy(context->decoder); + + + context->encoder = NULL; + context->decoder = NULL; + + return SWITCH_STATUS_SUCCESS; +} + +SWITCH_MODULE_LOAD_FUNCTION(mod_codec2_load) +{ + switch_codec_interface_t *codec_interface; + + *module_interface = switch_loadable_module_create_module_interface(pool, modname); + + SWITCH_ADD_CODEC(codec_interface, "CODEC2 2550bps"); + + switch_core_codec_add_implementation(pool, codec_interface, + SWITCH_CODEC_TYPE_AUDIO, + 0, + "CODEC2", + NULL, + 8000, /* samples/sec */ + 8000, /* samples/sec */ + 2550, /* bps */ + 20000, /* ptime */ + 160, /* samples decoded */ + 320, /* bytes decoded */ + 7, /* bytes encoded */ + 1, /* channels */ + 1, /* frames/packet */ + switch_codec2_init, + switch_codec2_encode, + switch_codec2_decode, + switch_codec2_destroy); + + return SWITCH_STATUS_SUCCESS; +} + +/* For Emacs: + * Local Variables: + * mode:c + * indent-tabs-mode:t + * tab-width:4 + * c-basic-offset:4 + * End: + * For VIM: + * vim:set softtabstop=4 shiftwidth=4 tabstop=4: + */