本文根据“How to integrate audio/voice in RPE in EZSDK.pdf”整理，建议读者直接下载，参考原文件。原文件下载链接：
http://download.csdn.net/detail/guo8113/8122945
ps：本文只是参考文档进行定制补充，但目前笔者没有完成移植，仅供参考。
转载请注明：http://blog.csdn.net/guo8113/article/details/40820897
DVR_RDK RPE添加其他音频编码
DM8168中音频算法（DVR-RDK中已经集成了aac的enc、dec）采用RPE（远程程序调用）的机制，该机制的介绍可以参考ti_tools/rpe中的文档，或者参考笔者的博客与论文。
1.更新构建环境变量
/remote-processor-execute/makerules/env.mk
L42:
#####################################################
# Codecs Paths
#####################################################
# AACDEC - AAC Decoder
aaclcdec_PATH =$(EXTERNAL_SW_ROOT)/c674x-aaclcdec_01_41_00_00_elf
aaclcdec_INCLUDE =$(aaclcdec_PATH)/packages
# AACENC - AAC Encoder
aaclcenc_PATH =$(EXTERNAL_SW_ROOT)/c674x_aaclcenc_01_00_01_00_elf
aaclcenc_INCLUDE =$(aaclcenc_PATH)/packages
#
# <Integrator>: Add more codec pathshere.
#
2.添加codec到编译列表：
ti_tools/rpe/remote-processor-execute/src/config/codecs.mk
INCLUDE_CODEC_INTERFACES = aaclcdecaaclcenc
3.更新client配置文件
ti_tools/rpe/remote-processor-execute/src/config/client_config.c
/* Get structure definitions for AACLCAudio Decoder Interface */
#include<ti/sdo/codecs/aaclcdec/iaacdec.h>
#include<ti/sdo/codecs/aaclcenc/imp4aacenc.h>
由于已经集成AAC enc和dec所以使用XDM接口的类已经定义了各一个，如果要同时运行其他codec，可能还需要进行添加。
4.更新server配置文件
ti_tools/rpe/remote-processor-execute/src/config/server_config_c67x.c
（1）模仿const XdmServer_ServerConfig TI_AACDEC_serverConfig{}编写自己的classconfigratiion
（2）更新：
const Rpe_ServerConfig*Rpe_serverConfigArray[] =
{
(const Rpe_ServerConfig *) & TI_AACDEC_serverConfig,
(const Rpe_ServerConfig *) & TI_AACENC_serverConfig,
& Rpe_endServerConfig
};
当然也要包含必要的头文件。
5.修改/dvr_rdk/rules.make
L101行：
# Audio framework (RPE) and Codecs
rpe_PATH :=$(TI_SW_ROOT)/rpe/remote-processor-execute
aaclcdec_PATH :=$(TI_SW_ROOT)/codecs/c674x_aaclcdec_01_41_00_00_elf
aaclcenc_PATH :=$(TI_SW_ROOT)/codecs/c674x_aaclcenc_01_00_01_00_elf_patched
L301:
RPE_BUILD_VARS =ipc_PATH="${ipc_PATH}"
bios_PATH="${bios_PATH}"
xdc_PATH="${xdc_PATH}"
xdais_PATH="${xdais_PATH}"
syslink_PATH="${syslink_PATH}"
kernel_PATH="${KERNELDIR}"
CODESOURCERY_PATH="${CODEGEN_PATH_A8}"
CGT_ARM_PREFIX="${CSTOOL_PREFIX}"
CODEGEN_PATH_DSP="${CODEGEN_PATH_DSP}"
CODEGEN_PATH_DSPELF="${CODEGEN_PATH_DSP}"
ROOTDIR="${rpe_PATH}"
aaclcdec_PATH="${aaclcdec_PATH}"
aaclcenc_PATH="${aaclcenc_PATH}"
L373:
export aaclcdec_PATH
export aaclcenc_PATH
6.添加库
dvr_rdk/makerules/rules_c674.mk
L192:
LIB_PATHS += $(RTSLIB_PATH)
$(aaclcdec_PATH)/packages/ti/sdo/codecs/aaclcdec/lib/aacdec_tii_lc_elf.l64P
$(aaclcenc_PATH)/packages/ti/sdo/codecs/aaclcenc/lib/mp4aacenc_tij_lc_elf.l67
添加包含目录：dvr_rdk/makerules/env.mk
aaclcdec_INCLUDE =$(aaclcdec_PATH)/packages
aaclcenc_INCLUDE =$(aaclcenc_PATH)/packages
7.在ARM侧指定RPE的编译包含路径
dvr_rdk/makerules/includes_a8.mk
L18：
RPE_INC=-I$(rpe_PATH)/include-I$(rpe_PATH)/src/include -I$(aaclcdec_PATH)/packages-I$(aaclcenc_PATH)/packages -I$(xdais_PATH)/packages
8. DVRRDK_03.00.00.00/dvr_rdk/mcfw/src_bios6/cfg/BIOS_c6xdsp.cfg
Program.sectMap["aacEncProgram"] = "DSP_CODE_MEM";
9.dm8168的DSP和ARM添加库与调用
在DSP里面调用elf格式的lib库
注:lib库需是elf格式的，用ccs5.2可编译elf格式lib库，lib库如何生成具体见1.1.2
1>把Jupitercar.lib拷贝到
/home/DVRRDK/DVRRDK_04.00.00.03/dvr_rdk/mcfw/src_bios6/alg/va/lib
2>rules_c674.mk里添加imglib2_elf.lib所在的路径
在/home/DVRRDK/DVRRDK_04.00.00.03/dvr_rdk/makerules
下打开rules_c674.mk在里面添加：
LIB_PATHS += $(RTSLIB_PATH)
$(fc_INCLUDE)/ti/sdo/fc/ecpy/lib/debug/ecpy.ae674
$(dvr_rdk_PATH)/mcfw/src_bios6/alg/scd/lib/scd.ae674
$(dvr_rdk_PATH)/mcfw/src_bios6/alg/va/lib/vlib.ae674
$(dvr_rdk_PATH)/mcfw/src_bios6/alg/va/lib/Jupitercar.lib
最后一个$(dvr_rdk_PATH)/mcfw/src_bios6/alg/va/lib/Jupitercar.lib是我添加进去的。
在ARM里面加linux的动态库.so库
注：这个库可以放任意目录中，只要路径加的正确就ok，(dvr_rdk_PATH)=DVRRDK_03.50.00.05dvr_rdk，(LIB_DIR)=DVRRDK_03.50.00.05dvr_rdklib i816x-evm
example：
1>把libcarview.so拷贝到Z:duthDVRRDK_03.50.00.05dvr_rdkUnitChecksrc
2>看看Z:duthDVRRDK_03.50.00.05dvr_rdkUnitChecksrc目录下的makefile
include $(dvr_rdk_PATH)/makerules/includes_a8.mk $(dvr_rdk_PATH)/makerules/common_header_a8.mk
includes_a8.mk是添加库的文件
LIBS= $(LIB_DIR)/dvr_rdk_demo_mcfw_api.a $(MCFW_LIBS) $(AUDIO_LIBS)
LIBS= $(LIB_DIR)/UnitCheck.a $(MCFW_LIBS) $(AUDIO_LIBS) $(RPE_LIBS)
看到生成静态库dvr_rdk_demo_mcfw_api.a需要$(MCFW_LIBS) $(AUDIO_LIBS)这2个库
看到生成我们要运行代码的静态库需要$(AUDIO_LIBS) $(RPE_LIBS)这2个库
3>进入includes_a8.mk看到
AUDIO_LIBS=$(linuxdevkit_PATH)/usr/lib/libasound.so.2
MCFW_LIBS=$(LIB_DIR)/dvr_rdk_mcfw_api.a $(LIB_DIR)/dvr_rdk_link_api.a $(LIB_DIR)/dvr_rdk_osa.a $(SYSLINK_LIBS)
RPE_LIBS=$(rpe_PATH)/lib/lib/a8/debug/rpe.av5T
接下来加自己的库（仿造上面写）
CAR_LIBS=$(dvr_rdk_PATH)/UnitCheck/src/libcarview.so
然后加到自己要生成文件后面
LIBS= $(LIB_DIR)/UnitCheck.a $(MCFW_LIBS) $(AUDIO_LIBS) $(RPE_LIBS) $(CAR_LIBS)
库只有链接的时候才会验证函数的定义。
转自：http://blog.csdn.net/mianhuantang848989/article/details/27224383