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g729 codec add (this needs to leave somwhere else) 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@106 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris 2005-12-10 02:12:03 +00:00
parent 77980897b9
commit 0ce22f5ac7
2 changed files with 402 additions and 0 deletions
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193
src/mod/mod_codec_g729/mod_codec_g729.c Normal file
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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>
*
*
* mod_codec_g729.c -- G729 Codec Module
*
*/
#include "switch.h"
#include "g729.h"
static const char modname[] = "mod_codec_g729";
struct g729_context {
struct dec_state *decoder_object;
struct cod_state *encoder_object;
};
static switch_status switch_g729_init(switch_codec *codec, switch_codec_flag flags, const struct switch_codec_settings *codec_settings)
{
struct dec_state *decoder_object = NULL;
struct cod_state *encoder_object = NULL;
struct g729_context *context = NULL;
int encoding, decoding;
encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
if (!(encoding || decoding) || (!(context = switch_core_alloc(codec->memory_pool, sizeof(*context))))) {
return SWITCH_STATUS_FALSE;
} else {
if ((encoding) && (!(encoder_object = switch_core_alloc(codec->memory_pool, sizeof(*encoder_object))))) {
return SWITCH_STATUS_FALSE;
}
if ((decoding) && (!(decoder_object = switch_core_alloc(codec->memory_pool, sizeof(*decoder_object))))) {
return SWITCH_STATUS_FALSE;
}
if (encoder_object) {
g729_init_coder(encoder_object, 0);
}
if (decoder_object) {
g729_init_decoder(decoder_object);
}
context->decoder_object = decoder_object;
context->encoder_object = encoder_object;
codec->private = context;
return SWITCH_STATUS_SUCCESS;
}
}
static switch_status switch_g729_destroy(switch_codec *codec)
{
codec->private = NULL;
return SWITCH_STATUS_SUCCESS;
}
static switch_status switch_g729_encode(switch_codec *codec,
switch_codec *other_codec,
void *decoded_data,
size_t decoded_data_len,
void *encoded_data,
size_t *encoded_data_len,
unsigned int *flag)
{
struct g729_context *context = codec->private;
struct cod_state *encoder_object = context->encoder_object;
short *dbuf;
unsigned char *ebuf;
int cbret = 0;
if (!context)
return SWITCH_STATUS_FALSE;
dbuf = decoded_data;
ebuf = encoded_data;
if (decoded_data_len < (size_t)codec->implementation->samples_per_frame*2 || *encoded_data_len < (size_t)codec->implementation->encoded_bytes_per_frame)
return SWITCH_STATUS_FALSE;
g729_coder(encoder_object, (short *) dbuf, ebuf, &cbret);
*encoded_data_len = (codec->implementation->encoded_bytes_per_frame / 2);
return SWITCH_STATUS_SUCCESS;
}
static switch_status switch_g729_decode(switch_codec *codec,
switch_codec *other_codec,
void *encoded_data,
size_t encoded_data_len,
void *decoded_data,
size_t *decoded_data_len,
unsigned int *flag)
{
struct g729_context *context = codec->private;
struct dec_state *decoder_object = context->decoder_object;
short *dbuf;
unsigned char *ebuf;
if (!context)
return SWITCH_STATUS_FALSE;
dbuf = decoded_data;
ebuf = encoded_data;
if ((encoded_data_len * 2) < (size_t)codec->implementation->encoded_bytes_per_frame)
return SWITCH_STATUS_FALSE;
if (*flag & SWITCH_CODEC_FLAG_SILENCE) {
memset(dbuf, 0, codec->implementation->bytes_per_frame);
*decoded_data_len = codec->implementation->bytes_per_frame;
} else {
g729_decoder(decoder_object, decoded_data, (void *) encoded_data, (int)encoded_data_len);
*decoded_data_len = codec->implementation->bytes_per_frame;
}
return SWITCH_STATUS_SUCCESS;
}
/* Registration */
static const switch_codec_implementation g729_8k_implementation = {
/*.samples_per_second*/ 8000,
/*.bits_per_second*/ 64000,
/*.microseconds_per_frame*/ 20000,
/*.samples_per_frame*/ 160,
/*.bytes_per_frame*/ 320,
/*.encoded_bytes_per_frame*/ 20,
/*.number_of_channels*/ 1,
/*.pref_frames_per_packet*/ 6,
/*.max_frames_per_packet*/ 24,
/*.init*/ switch_g729_init,
/*.encode*/ switch_g729_encode,
/*.decode*/ switch_g729_decode,
/*.destroy*/ switch_g729_destroy,
};
static const switch_codec_interface g729_codec_interface = {
/*.interface_name*/ "g729",
/*.codec_type*/ SWITCH_CODEC_TYPE_AUDIO,
/*.ianacode*/ 18,
/*.iananame*/ "G729",
/*.implementations*/ &g729_8k_implementation,
};
static switch_loadable_module_interface g729_module_interface = {
/*.module_name*/ modname,
/*.endpoint_interface*/ NULL,
/*.timer_interface*/ NULL,
/*.dialplan_interface*/ NULL,
/*.codec_interface*/ &g729_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 = &g729_module_interface;
/* indicate that the module should continue to be loaded */
return SWITCH_STATUS_SUCCESS;
}

209
src/mod/mod_codec_g729/mod_codec_g729.vcproj Normal file
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<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="8.00"
Name="mod_codec_g729"
ProjectGUID="{B1FE4613-3F4B-4DAF-9714-2472BF8F56AE}"
RootNamespace="mod_codec_g729"
Keyword="Win32Proj"
>
<Platforms>
<Platform
Name="Win32"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="Debug"
IntermediateDirectory="Debug"
ConfigurationType="2"
InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
CharacterSet="2"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="&quot;$(InputDir)..\..\include&quot;;&quot;$(InputDir)..\..\..\libs\apr\include&quot;;&quot;$(InputDir)..\..\..\libs\libg729&quot;"
PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;MOD_EXPORTS"
MinimalRebuild="true"
BasicRuntimeChecks="3"
RuntimeLibrary="1"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="true"
DebugInformationFormat="4"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="libapr-1.lib libg729.lib FreeSwitchCore.lib"
OutputFile="..\..\..\w32\vsnet\$(OutDir)/mod/mod_codec_g729.dll"
LinkIncremental="2"
AdditionalLibraryDirectories="&quot;$(InputDir)..\..\..\libs\apr\Debug&quot;;&quot;$(InputDir)..\..\..\libs\libg729\Debug&quot;;..\..\..\w32\vsnet\Debug"
GenerateDebugInformation="true"
ProgramDatabaseFile="$(OutDir)/mod_codec_g729.pdb"
SubSystem="2"
ImportLibrary="$(OutDir)/mod_codec_g729.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="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
CharacterSet="2"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
AdditionalIncludeDirectories="&quot;$(InputDir)..\..\include&quot;;&quot;$(InputDir)..\..\..\libs\apr\include&quot;;&quot;$(InputDir)..\..\..\libs\libg729&quot;"
PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;MOD_EXPORTS"
RuntimeLibrary="0"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="true"
DebugInformationFormat="3"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="libapr-1.lib libg729.lib FreeSwitchCore.lib"
OutputFile="..\..\..\w32\vsnet\$(OutDir)/mod/mod_codec_g729.dll"
LinkIncremental="1"
AdditionalLibraryDirectories="&quot;$(InputDir)..\..\..\libs\apr\Release&quot;;&quot;$(InputDir)..\..\..\libs\libg729\Release&quot;;..\..\..\w32\vsnet\Release"
GenerateDebugInformation="true"
SubSystem="2"
OptimizeReferences="2"
EnableCOMDATFolding="2"
ImportLibrary="$(OutDir)/mod_codec_g729.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_codec_g729.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>