基于OpenH264Encoder实现WebRTC的视频编码器

134 篇文章 ¥59.90 ¥99.00
本文介绍了如何在WebRTC中基于OpenH264Encoder实现视频编码器。内容包括引入OpenH264Encoder库,定义VideoEncoder接口,实现编码器类WebRTCVideoEncoder,以及如何在实际应用中使用该编码器。

WebRTC(Web Real-Time Communication)是一种用于实时通信的开放网络标准,它提供了在浏览器和移动应用中进行音视频通话、数据传输和文件共享的能力。 在WebRTC中,视频编码器是一个必不可少的组件,它负责将原始视频数据压缩成适合传输的格式。本文将介绍如何基于OpenH264Encoder实现WebRTC的视频编码器。

一、引入OpenH264Encoder库
首先,我们需要引入OpenH264Encoder库。在项目中创建一个新的目录,将OpenH264Encoder的源代码文件(.h和.cpp文件)添加到该目录中。然后,在你的编译环境中配置好编译选项,以便能够正确编译和链接OpenH264Encoder库。具体的编译配置方法可以参考OpenH264Encoder的官方文档。

二、定义VideoEncoder接口
在编写具体的WebRTC视频编码器之前,我们需要定义一个VideoEncoder接口,该接口将规定了视频编码器需要实现的方法。以下是一个简化的VideoEncoder接口定义:

class VideoEncoder {
   
   
public:
    virtual</
OpenH264 是思科公司发布的一个开源的 H.264 编码和解码器。编码器特性Constrained Baseline Profile up to Level 5.2 (4096x2304)Arbitrary resolution, not constrained to multiples of 16x16Rate control with adaptive quantization, or constant quantizationSlice options: 1 slice per frame, N slices per frame, N macroblocks per slice, or N bytes per sliceMultiple threads automatically used for multiple slicesTemporal scalability up to 4 layers in a dyadic hierarchySpatial simulcast up to 4 resolutions from a single inputLong Term Reference (LTR) framesMemory Management Control Operation (MMCO)Reference picture list modificationSingle reference frame for inter predictionMultiple reference frames when using LTR and/or 3-4 temporal layersPeriodic and on-demand Instantaneous Decoder Refresh (IDR) frame insertionDynamic changes to bit rate, frame rate, and resolutionAnnex B byte stream outputYUV 4:2:0 planar input解码器特性Constrained Baseline Profile up to Level 5.2 (4096x2304)Arbitrary resolution, not constrained to multiples of 16x16Single thread for all slicesLong Term Reference (LTR) framesMemory Management Control Operation (MMCO)Reference picture list modificationMultiple reference frames when specified in Sequence Parameter Set (SPS)Annex B byte stream inputYUV 4:2:0 planar output支持的操作系统Windows 64-bit and 32-bit (initial release is only 32-bit, 64-bit will follow soon)Mac OS X 64-bit (initial release does not include this target, will follow soon)Linux 64-bit and 32-bit (initial release is only 32-bit, 64-bit will follow soon)Android 32-bit (initial release does not include this target, will follow soon)iOS 64-bit and 32-bit (not supported yet, may be added in the future)支持的处理器Intel x86 optionally with MMX/SSE (no AVX yet, help is welcome)ARMv7 optionally with NEON (initial release does not include this target, will follow later)Any architecture using C/C fallback functions 标签:OpenH264
评论
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符  | 博主筛选后可见
 
红包 添加红包
表情包 插入表情
 条评论被折叠 查看
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值