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< div class = "date inPage" > 16 May 2025< / div > < div style = "color: gray;" >
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Read time: 2 minute(s)
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< div class = "- topic/p p" data-ofbid = "d29945e33__20250519091503" > 本模块源码位于 < span class = "+ topic/ph sw-d/filepath ph filepath" > source/artinchip/aic-mpp/middle_media< / span >
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，目录结构如下< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mpp_player_design_intro__codeblock_lym_hb3_d1c" data-ofbid = "mpp_player_design_intro__codeblock_lym_hb3_d1c" > aic-mpp
|--middle-media
|-base
| |-inlcude
| | |-aic_message.h < em class = "hl-comment" > //定义公共消息接口< / em >
| | |-aic_parser.h < em class = "hl-comment" > //定义 parser 接口< / em >
| | |-aic_stream.h < em class = "hl-comment" > //定义 stream 接口< / em >
| | |-aic_render.h < em class = "hl-comment" > //定义视频渲染接口< / em >
| | |-aic_audio_render.h < em class = "hl-comment" > //定义音频渲染接口< / em >
| |
| |-message < em class = "hl-comment" > //消息接口具体实现< / em >
| |-parser < em class = "hl-comment" > //parser 接口具体实现< / em >
| |-stream < em class = "hl-comment" > //stream 接口具体实现< / em >
| |-render < em class = "hl-comment" > //音视频渲染接口具体实现< / em >
|
|-audio_decoder < em class = "hl-comment" > //音频软件解码器，无硬件音频解码器。< / em >
|
|-openmax < em class = "hl-comment" > //播放器组件< / em >
| |-component
| | |-OMX_AdecComponent.c < em class = "hl-comment" > //音频解码组件,输入编码音频数据,输出解码后的 pcm 数据< / em >
| | |-OMX_AudioRenderComponent.c < em class = "hl-comment" > //音频渲染组件，将解码后音频送到音频设备播放< / em >
| | |-OMX_ClockComponent.c < em class = "hl-comment" > //时钟组件，为音视频同步服务< / em >
| | |-OMX_DemuxerComponent.c < em class = "hl-comment" > //解封装组件,识别文件的封装格式,从文件中解析出音视频 packet< / em >
| | |-OMX_VdecComponent.c < em class = "hl-comment" > //视频解码组件，输入编码视频数据，输出解码后的视频图像< / em >
| | |-OMX_VideoRenderComponent.c < em class = "hl-comment" > //视频渲染组件，将解码后图像显示在屏幕上< / em >
| |
| |-inlcude
| |-*.h < em class = "hl-comment" > //openmax 头文件< / em >
|
|-player
|-inlcude
| |-aic_player.h < em class = "hl-comment" > //palyer 接口定义< / em >
|
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|aic_player.c < em class = "hl-comment" > //player 接口实现< / em > < / pre > < ul class = "- topic/ul ul simple" id = "mpp_player_design_intro__ul_fjz_trf_fdc" data-ofbid = "mpp_player_design_intro__ul_fjz_trf_fdc" >
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< li class = "- topic/li li" data-ofbid = "d29945e42__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e44__20250519091503" > component 相比 V1 版本播放器删除 OMX 的 component 设计，变更为自研的 mm_component
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框架，内容更加精简。< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e48__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e50__20250519091503" > 为了避免整体框架调整过大，该框架部分 API 仍然借鉴了部分 OMX 的思想，使得各组件间调用的接口更加统一和规范。< / p >
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< / li >
< / ul > < / div >
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< section class = "- topic/section section" id = "mpp_player_design_intro__section_gq4_jb3_d1c" data-ofbid = "mpp_player_design_intro__section_gq4_jb3_d1c" > < h2 class = "- topic/title title sectiontitle" > 模块架构< / h2 > < p class = "- topic/p p" data-ofbid = "d29945e58__20250519091503" > player 在系统架构中的层次如下图< / p > < p class = "- topic/p p" data-ofbid = "d29945e60__20250519091503" > < / p > < div class = "- topic/p p" data-ofbid = "d29945e61__20250519091503" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "mpp_player_design_intro__image_h2s_3h3_g1c" src = "../../../images/mpp/player_system.png" alt = "player_system" / > < / div > < br / > < / div > < ul class = "- topic/ul ul" id = "mpp_player_design_intro__ul_iq4_jb3_d1c" data-ofbid = "mpp_player_design_intro__ul_iq4_jb3_d1c" >
< li class = "- topic/li li" data-ofbid = "d29945e69__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e71__20250519091503" > player 是中间件，向 App 提供 player 接口< / p >
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< ul class = "- topic/ul ul" id = "mpp_player_design_intro__ul_jq4_jb3_d1c" data-ofbid = "mpp_player_design_intro__ul_jq4_jb3_d1c" >
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< li class = "- topic/li li" data-ofbid = "d29945e76__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e78__20250519091503" > player 视频解码调用 mpp_decoder< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e82__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e84__20250519091503" > player 音频解码调用 audio_decoder< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e88__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e90__20250519091503" > player 视频渲染操作 DE driver 提供< span class = "- topic/ph ph" > 的接口< / span > < / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e96__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e98__20250519091503" > player 音频渲染操作 Sound driver 提供的接口< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e102__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e104__20250519091503" > player 内部实现解封装的功能< / p >
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< / li >
< / ul >
< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e110__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e112__20250519091503" > audio_decoder(音频解码器)< / p >
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< ul class = "- topic/ul ul" id = "mpp_player_design_intro__ul_kq4_jb3_d1c" data-ofbid = "mpp_player_design_intro__ul_kq4_jb3_d1c" >
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< li class = "- topic/li li" data-ofbid = "d29945e117__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e119__20250519091503" > audio_decoder 是纯软件解码，目前移植了第三方的 libmad 和 faad ，支持 MP3 和 AAC 解码。< / p >
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< / li >
< / ul >
< / li >
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< / ul > < p class = "- topic/p p" data-ofbid = "d29945e125__20250519091503" > player 模块架构如下图,分为 3 层< / p > < ul class = "- topic/ul ul" id = "mpp_player_design_intro__ul_lq4_jb3_d1c" data-ofbid = "mpp_player_design_intro__ul_lq4_jb3_d1c" >
< li class = "- topic/li li" data-ofbid = "d29945e129__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e131__20250519091503" > 第 1 层,player interface ,向上提供 player 接口,向下调用 OpenMAX 组件实现 player 功能。< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e135__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e137__20250519091503" > 第 2 层,OpenMAX Component,提供统一的组件操作接口。每个组件完成特定的功能,比如视频解码,视频渲染等。< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e141__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e143__20250519091503" > 第 3 层,Base， ， ， ， < / p >
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< ul class = "- topic/ul ul" id = "mpp_player_design_intro__ul_mq4_jb3_d1c" data-ofbid = "mpp_player_design_intro__ul_mq4_jb3_d1c" >
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< li class = "- topic/li li" data-ofbid = "d29945e148__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e150__20250519091503" > parser 提供解封装的功能，比如 MP4 封装< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e154__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e156__20250519091503" > stream 提供解析流协议的功能，本地文件也看作是一种流协议，目前也只支持本地文件< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e160__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e162__20250519091503" > message 为组件传递消息提供支持< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e166__20250519091503" >
< p class = "- topic/p p" data-ofbid = "d29945e168__20250519091503" > render 提供底层音视频渲染的功能< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d29945e172__20250519091503" > < p class = "- topic/p p" data-ofbid = "d29945e173__20250519091503" > 目前支持 MP4 和 MP3 封装的本地文件，后续扩展其它流协议和封装格式，通过增加相应的 parser 和 stream
实现< / p > < div class = "- topic/p p" data-ofbid = "d29945e175__20250519091503" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "mpp_player_design_intro__image_nq4_jb3_d1c" src = "../../../images/mpp/player_framework.png" alt = "player_framework1" / > < / div > < br / > < / div > < / li >
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< / ul >
< / li >
< / ul > < / section >
< / div >
< / article > < / main > < / div >
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< div class = " wh_child_links d-print-none " > < nav aria-label = "Child Links" role = "navigation" class = "- topic/related-links related-links" > < ul class = "ullinks" > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/mpp/mpp_player_interface.html" > MPP Player 接口设计< / a > < / strong > < / li > < / ul > < / nav > < / div >
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< / div >
< / div >
< / div >
< / div >
< footer class = "navbar navbar-default wh_footer" >
< div class = " footer-container mx-auto " >
< title > footer def< / title >
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< style >
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.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
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< / style >
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< div class = "webhelp.fragment.footer" >
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< p class = "p1" > Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div >
< div >
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< div class = "generation_time" >
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Update Time: 2025-05-19
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< / div >
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< / div >
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< / div >
< / footer >
< div id = "go2top" class = "d-print-none" >
< span class = "oxy-icon oxy-icon-up" > < / span >
< / div >
< div id = "modal_img_large" class = "modal" >
< span class = "close oxy-icon oxy-icon-remove" > < / span >
< div id = "modal_img_container" > < / div >
< div id = "caption" > < / div >
< / div >
< script src = "${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer = "defer" > < / script >
< / body >
< / html >
