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initial bits of ilbc codec mod.

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@452 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris committed 2006-01-27 00:48:15 +00:00
1 parent 3bbfb94a22
commit 954fe31140
54 files changed
+467 -5
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src/mod/codecs/mod_ilbc/Makefile
+16
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LDFLAGS +=-lilbc
all: depends $(MODNAME).so
depends:
$(BASE)/buildlib.sh $(BASE) install codec/ilbc --prefix=$(PREFIX)
$(MODNAME).so: $(MODNAME).c
$(CC) $(CFLAGS) -fPIC -c $(MODNAME).c -o $(MODNAME).o
$(CC) $(SOLINK) $(MODNAME).o -o $(MODNAME).so $(LDFLAGS)
clean:
rm -fr *.so *.o *~
install:
cp -f $(MODNAME).so $(PREFIX)/mod
src/mod/codecs/mod_ilbc/mod_ilbc.c
+175
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/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
*
* 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 / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Anthony Minessale II <anthmct@yahoo.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Anthony Minessale II <anthmct@yahoo.com>
* Michael Jerris <mike@jerris.com>
*
* mod_codec_gsm.c -- gsm Codec Module
*
*/
#include "switch.h"
#include "gsm.h"
␍static const char modname[] = "mod_codec_gsm";
␍␍struct gsm_context {
␍gsm encoder;
␍gsm decoder;
␍};
␍␍static switch_status switch_gsm_init(switch_codec *codec, switch_codec_flag flags,
const struct switch_codec_settings *codec_settings)
{
␍struct gsm_context *context;
␍int encoding, decoding;
␍␍encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
␍decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
␍␍if (!(encoding || decoding)) {
␍return SWITCH_STATUS_FALSE;
␍} else {
␍context = switch_core_alloc(codec->memory_pool, sizeof(*context));
␍if (encoding)
context->encoder = gsm_create();
␍if (decoding)
context->decoder = gsm_create();
␍}
␍␍codec->private = context;
␍␍return SWITCH_STATUS_SUCCESS;
␍␍}
␍␍static switch_status switch_gsm_destroy(switch_codec *codec)
{
␍struct gsm_context *context = codec->private;
␍int encoding = (codec->flags & SWITCH_CODEC_FLAG_ENCODE);
␍int decoding = (codec->flags & SWITCH_CODEC_FLAG_DECODE);
␍␍if (encoding)
gsm_destroy(context->encoder);
␍if (decoding)
gsm_destroy(context->decoder);
␍␍codec->private = NULL;
␍return SWITCH_STATUS_SUCCESS;
␍}
␍␍␍static switch_status switch_gsm_encode(switch_codec *codec, ␍switch_codec *other_codec, ␍void *decoded_data,
␍size_t decoded_data_len, ␍int decoded_rate, ␍void *encoded_data,
␍size_t *encoded_data_len, ␍int *encoded_rate, ␍unsigned int *flag)
{
␍struct gsm_context *context = codec->private;
␍int cbret = 0;
␍␍if (!context) {
␍return SWITCH_STATUS_FALSE;
␍}
␍if (decoded_data_len % 320 == 0) {
␍unsigned int new_len = 0;
␍gsm_signal * ddp = decoded_data;
␍gsm_byte * edp = encoded_data;
␍int x;
␍int loops = (int) decoded_data_len / 320;
␍for (x = 0; x < loops && new_len < *encoded_data_len; x++) {
␍gsm_encode(context->encoder, ddp, edp);
␍edp += 33;
␍ddp += 160;
␍new_len += 33;
␍}
␍if (new_len <= *encoded_data_len) {
␍*encoded_data_len = new_len;
␍} else {
␍switch_console_printf(SWITCH_CHANNEL_CONSOLE, "buffer overflow!!! %u >= %u\n", new_len, *encoded_data_len);
␍return SWITCH_STATUS_FALSE;
␍}
␍}
␍␍return SWITCH_STATUS_SUCCESS;
␍}
␍␍␍static switch_status switch_gsm_decode(switch_codec *codec, ␍switch_codec *other_codec, ␍void *encoded_data,
␍size_t encoded_data_len, ␍int encoded_rate, ␍void *decoded_data,
␍size_t *decoded_data_len, ␍int *decoded_rate, ␍unsigned int *flag)
{
␍struct gsm_context *context = codec->private;
␍␍if (!context) {
␍return SWITCH_STATUS_FALSE;
␍}
␍␍␍if (encoded_data_len % 33 == 0) {
␍int loops = (int) encoded_data_len / 33;
␍gsm_byte * edp = encoded_data;
␍gsm_signal * ddp = decoded_data;
␍int x;
␍unsigned int new_len = 0;
␍for (x = 0; x < loops && new_len < *decoded_data_len; x++) {
␍gsm_decode(context->decoder, edp, ddp);
␍ddp += 160;
␍edp += 33;
␍new_len += 320;
␍}
␍if (new_len <= *decoded_data_len) {
␍*decoded_data_len = new_len;
␍} else {
␍switch_console_printf(SWITCH_CHANNEL_CONSOLE, "buffer overflow!!!\n");
␍return SWITCH_STATUS_FALSE;
␍}
␍} else {
␍switch_console_printf(SWITCH_CHANNEL_CONSOLE, "yo this frame is an odd size [%d]\n", encoded_data_len);
␍}
␍␍return SWITCH_STATUS_SUCCESS;
␍}
␍
/* Registration */
␍static const switch_codec_implementation gsm_8k_implementation = {
/*.samples_per_second */ 8000,
/*.bits_per_second */ 13200,
/*.microseconds_per_frame */ 20000,
/*.samples_per_frame */ 160,
/*.bytes_per_frame */ 320,
/*.encoded_bytes_per_frame */ 33,
/*.number_of_channels */ 1,
/*.pref_frames_per_packet */ 1,
/*.max_frames_per_packet */ 1,
/*.init */ switch_gsm_init,
/*.encode */ switch_gsm_encode,
/*.decode */ switch_gsm_decode,
/*.destroy */ switch_gsm_destroy,
};
␍␍static const switch_codec_interface gsm_codec_interface = {
/*.interface_name */ "gsm",
/*.codec_type */ SWITCH_CODEC_TYPE_AUDIO,
/*.ianacode */ 3,
/*.iananame */ "gsm",
/*.implementations */ &gsm_8k_implementation,
};
␍␍static switch_loadable_module_interface gsm_module_interface = {
/*.module_name */ modname,
/*.endpoint_interface */ NULL,
/*.timer_interface */ NULL,
/*.dialplan_interface */ NULL,
/*.codec_interface */ &gsm_codec_interface,
/*.application_interface */ NULL
};
␍␍␍SWITCH_MOD_DECLARE(switch_status) switch_module_load(const switch_loadable_module_interface **interface,
char *filename)
{
/* connect my internal structure to the blank pointer passed to me */
*interface = &gsm_module_interface;
␍
/* indicate that the module should continue to be loaded */
return SWITCH_STATUS_SUCCESS;
␍}
␍␍␍␍␍
src/mod/codecs/mod_ilbc/mod_ilbc.vcproj
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<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="8.00"
Name="mod_ilbc"
ProjectGUID="{4926323F-4EA8-4B7D-A3D3-65488725988F}"
RootNamespace="mod_ilbc"
Keyword="Win32Proj"
>
<Platforms>
<Platform
Name="Win32"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="Debug"
IntermediateDirectory="Debug"
ConfigurationType="2"
InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
CharacterSet="2"
>
<Tool
Name="VCPreBuildEventTool"
CommandLine="cscript /nologo $(InputDir)..\..\..\..\w32\vsnet\getlibs.vbs Mod_Codecilbc Debug"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="&quot;$(InputDir)..\..\..\include&quot;;&quot;$(InputDir)..\..\..\..\libs\include&quot;;&quot;$(InputDir)..\..\..\..\libs\codec\ilbc\inc&quot;"
PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;MOD_EXPORTS"
MinimalRebuild="true"
BasicRuntimeChecks="3"
RuntimeLibrary="3"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="true"
DebugInformationFormat="4"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="libilbc.lib FreeSwitchCore.lib"
OutputFile="..\..\..\..\w32\vsnet\$(OutDir)/mod/mod_ilbc.dll"
LinkIncremental="2"
AdditionalLibraryDirectories="..\..\..\..\libs\codec\ilbc\Debug;..\..\..\..\w32\vsnet\Debug"
GenerateDebugInformation="true"
ProgramDatabaseFile="$(OutDir)/mod_ilbc.pdb"
SubSystem="2"
ImportLibrary="$(OutDir)/mod_ilbc.lib"
TargetMachine="1"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCWebDeploymentTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="Release"
IntermediateDirectory="Release"
ConfigurationType="2"
InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
CharacterSet="2"
>
<Tool
Name="VCPreBuildEventTool"
CommandLine="cscript /nologo $(InputDir)..\..\..\..\w32\vsnet\getlibs.vbs Mod_Codecilbc Release"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
AdditionalIncludeDirectories="&quot;$(InputDir)..\..\..\include&quot;;&quot;$(InputDir)..\..\..\..\libs\include&quot;;&quot;$(InputDir)..\..\..\..\libs\codec\ilbc\inc&quot;"
PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;MOD_EXPORTS"
RuntimeLibrary="2"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="true"
DebugInformationFormat="3"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="libilbc.lib FreeSwitchCore.lib"
OutputFile="..\..\..\..\w32\vsnet\$(OutDir)/mod/mod_ilbc.dll"
LinkIncremental="1"
AdditionalLibraryDirectories="..\..\..\..\libs\codec\ilbc\Release;..\..\..\..\w32\vsnet\Release"
GenerateDebugInformation="true"
SubSystem="2"
OptimizeReferences="2"
EnableCOMDATFolding="2"
LinkTimeCodeGeneration="1"
ImportLibrary="$(OutDir)/mod_ilbc.lib"
TargetMachine="1"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCWebDeploymentTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
>
<File
RelativePath="mod_ilbc.c"
>
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl;inc;xsd"
UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
>
</Filter>
<Filter
Name="Resource Files"
Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
>
</Filter>
</Files>
<Globals>
</Globals>
</VisualStudioProject>