• 【转】DM8168添加DSP音频编解码算法--集成现有voice或audio codec


    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

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  • 原文地址:https://www.cnblogs.com/cslunatic/p/4344169.html
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