30 Star 25 Fork 320

OpenHarmony / multimedia_av_codec

加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
克隆/下载
贡献代码
同步代码
取消
提示: 由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件
Loading...
README
Apache-2.0

av_codec部件

简介

av_codec部件为OpenHarmony系统提供了统一的音视频编解码、封装、解封装能力,使得应用能够直接调用系统提供的编解码、封装、解封装能力实现音视频的播放、录制、编码等功能。

av_codec部件提供了以下常用功能:

  • 音视频编解码
  • 音视频解封装
  • 音视频封装

图 1 av_codec部件架构图

av_codec部件架构图

模块介绍

模块名称 功能
编解码 提供音视频编解码功能接口以及编解码能力查询功能接口。
解封装 提供音视频资源的加载、音视频轨分离和音视频数据读取的功能接口,读取的数据可使用解码器进行解码。
封装 提供将编码后的音视频数据写入媒体文件的功能接口。
编解码生命周期管理 用于服务端编解码功能的创建、销毁、实例管理等。
解封装生命周期管理 用于服务端解封装功能的创建、销毁、实例管理等。
封装生命周期管理 用于服务端封装功能的创建、销毁、实例管理等。
编解码能力列表 用于描述所有编解码器的详细信息,比如名字、mimetype、支持的分辨率等。
硬件编解码器 使用专用的编解码硬件进行编解码处理的编解码器,提供编解码处理功能。
软件编解码器 使用CPU进行编解码处理的编解码器,提供编解码处理功能。
解封装器 提供音视频资源的加载、音视频轨分离和音视频数据读取的功能。
封装器 提供将编码后的音视频数据写入媒体文件的功能。
硬件编解码器HDI 提供硬件编解码器的抽象接口,通过该接口对服务层屏蔽不同的硬件编解码器,向服务层提供硬件编解码能力。

目录

仓目录结构如下:

/foundation/multimedia/av_codec     # av_codec部件业务代码
├── BUILD.gn                        # 编译入口
├── bundle.json                     # 部件描述文件
├── frameworks                      # 部件无独立进程框架代码的实现
│   └── native                      # native c++实现
├── interfaces                      # 外部接口层
│   ├── inner_api                   # 系统内部件接口
│   └── kits                        # 应用接口
├── sa_profile                      # 部件配置
├── services                        # 服务实现代码
│   ├── dfx                         # dfx代码
│   ├── engine                      # 功能实现
│   │   ├── base                    # 功能基类
│   │   ├── codec                   # 编解码功能实现
│   │   ├── codeclist               # 编解码能力查询功能实现
│   │   ├── common                  # 功能实现公共库
│   │   ├── demuxer                 # 解封装功能实现
│   │   ├── factory                 # 功能实现工厂库
│   │   ├── muxer                   # 封装功能实现
│   │   ├── plugin                  # 插件实现
│   │   └── source                  # 媒体资源读取工具功能实现
│   ├── etc                         # 部件进程配置
│   ├── include                     # 服务对外头文件
│   ├── services                    # 服务IPC实现
│   │   ├── codec                   # 编解码IPC实现
│   │   ├── codeclist               # 编解码能力查询IPC实现
│   │   ├── common                  # 服务IPC实现公共库
│   │   ├── demuxer                 # 解封装IPC实现
│   │   ├── factory                 # 服务IPC实现工厂库
│   │   ├── muxer                   # 封装IPC实现
│   │   ├── sa_avcodec              # 部件主进程IPC实现
│   │   └── source                  # 媒体资源读取工具IPC实现
│   └── utils                       # 服务实现通用资源
└── test                            # 测试代码

编译构建

编译32位ARM系统av_codec部件

./build.sh --product-name {product_name} --ccache --build-target av_codec

编译64位ARM系统av_codec部件

./build.sh --product-name {product_name} --ccache --target-cpu arm64 --build-target av_codec

{product_name}为当前支持的平台,比如rk3568。

说明

使用说明

使用说明参考开发指导中音视频编解码章节。

相关仓

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

简介

媒体编解码组件(含音视频编解码、封装、解封装等功能) 展开 收起
C++ 等 2 种语言
Apache-2.0
取消

发行版

暂无发行版

贡献者

全部

近期动态

加载更多
不能加载更多了
1
https://gitee.com/openharmony/multimedia_av_codec.git
git@gitee.com:openharmony/multimedia_av_codec.git
openharmony
multimedia_av_codec
multimedia_av_codec
master

搜索帮助