<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[dobe_yang的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/dobe_yang</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; dobe_yang]]></copyright><item><title><![CDATA[代理设置异常导致 libcurl curl_easy_perform()请求失败]]></title><link>https://blog.youkuaiyun.com/dobe_yang/article/details/106765404</link><guid>https://blog.youkuaiyun.com/dobe_yang/article/details/106765404</guid><author>dobe_yang</author><pubDate>Mon, 15 Jun 2020 16:41:01 +0800</pubDate><description><![CDATA[1. 使用libcurl实现http数据请求，curl_easy_perform返回失败

错误信息：

1.CURLE_COULDNT_CONNECT,     /* 7 */

2. CURLE_GOT_NOTHING,       /* 52 - when this is a specific error */
3. CURLE_RECV_ERROR,       /* 56 - failure in receiving network data */

2.跟踪代...]]></description><category></category></item><item><title><![CDATA[WebRTC m79中的RTP padding]]></title><link>https://blog.youkuaiyun.com/dobe_yang/article/details/104944949</link><guid>https://blog.youkuaiyun.com/dobe_yang/article/details/104944949</guid><author>dobe_yang</author><pubDate>Wed, 18 Mar 2020 15:45:16 +0800</pubDate><description><![CDATA[1为什么需要padding

启动网络探测时，需要实际发送数据，PacedSender模块请求发送Padding
	网络状态突变时会启动网络探测
	实际编码带宽低于预测带宽，PacedSender执行发送时检测到发送数据量低于本次基于带宽预估分配的数据量，不足的部分发送padding
	每500ms发送一个心跳包，padding_size = 1
2 Padding的生成

核心业务逻辑在RTP...]]></description><category></category></item><item><title><![CDATA[基于WebRTC m79的NackModule]]></title><link>https://blog.youkuaiyun.com/dobe_yang/article/details/104431133</link><guid>https://blog.youkuaiyun.com/dobe_yang/article/details/104431133</guid><author>dobe_yang</author><pubDate>Fri, 21 Feb 2020 17:20:04 +0800</pubDate><description><![CDATA[代码流程：

BaseChannel::OnRtpPacket(const webrtc::RtpPacketReceived&amp; parsed_packet)-&gt;切换线程

WebRtcVideoChannel::OnPacketReceived(rtc::CopyOnWriteBuffer packet, int64_t packet_time_us)-&gt;

Call::De...]]></description><category></category></item><item><title><![CDATA[Xshell远程终端中使用wireshark抓包]]></title><link>https://blog.youkuaiyun.com/dobe_yang/article/details/103926613</link><guid>https://blog.youkuaiyun.com/dobe_yang/article/details/103926613</guid><author>dobe_yang</author><pubDate>Fri, 10 Jan 2020 16:33:49 +0800</pubDate><description><![CDATA[linux安装wireshark:

apt-get install wireshark-gtk

安装选项选择&lt;Yes&gt;:



安装Xming

a. 首先在SSH客户端所在的电脑上下载并安装Xming软件：Xming X Server for Windows 





如果已经安装过SSH客户端软件，在安装过程中可以选择不安装PuTTY软件；安装成功后，在Windows的...]]></description><category></category></item><item><title><![CDATA[webrtcM79支持H264编解码]]></title><link>https://blog.youkuaiyun.com/dobe_yang/article/details/103804954</link><guid>https://blog.youkuaiyun.com/dobe_yang/article/details/103804954</guid><author>dobe_yang</author><pubDate>Thu, 02 Jan 2020 15:24:46 +0800</pubDate><description><![CDATA[H264相关args:

rtc_use_h264=true
ffmpeg_branding="Chrome"
use_openh264=true
proprietary_codecs=true

配置源码

path: src\third_party\ffmpeg\chromium\config\Chrome\win\x64\libavcodec，config下路径对应ffmpeg_brandi...]]></description><category></category></item><item><title><![CDATA[VS调试记录]]></title><link>https://blog.youkuaiyun.com/dobe_yang/article/details/103526308</link><guid>https://blog.youkuaiyun.com/dobe_yang/article/details/103526308</guid><author>dobe_yang</author><pubDate>Fri, 13 Dec 2019 14:16:35 +0800</pubDate><description><![CDATA[visual studio编译Debug_X64程序出现0xc000007b错误：

此错误原因是x64应用程序使用了32位DLL，排查使用的每个DLL都没找到异常，最后发现windeployqt将QT相关dll同步到执行目录即可；
	debug编译方式，报错并非找不到QT相关DLL而是直接报0xc000007b错误；
	类似错误也只好列举所有需要使用的DLL并写测试用例逐步排除；
error L...]]></description><category></category></item><item><title><![CDATA[简单记录CentOS release 6.9安装libyuv]]></title><link>https://blog.youkuaiyun.com/dobe_yang/article/details/80223649</link><guid>https://blog.youkuaiyun.com/dobe_yang/article/details/80223649</guid><author>dobe_yang</author><pubDate>Mon, 07 May 2018 13:37:42 +0800</pubDate><description><![CDATA[PC配置一般玩不了虚拟机所以申请了远程开发机，这样就能节省很多系统资源系统也更流畅，不过蛋疼也来了，开发机版本比较老，不不支持C++11。1.参考https://blog.youkuaiyun.com/rbpicsdn/article/details/79565383编了一上午才把GCC配置好，还有一点是编译器更新后lib64下的软连接也需要更新。2.安装（升级）binutils（下载地址：http://ft...]]></description><category></category></item><item><title><![CDATA[VGA时序及其原理]]></title><link>https://blog.youkuaiyun.com/dobe_yang/article/details/78902738</link><guid>https://blog.youkuaiyun.com/dobe_yang/article/details/78902738</guid><author>dobe_yang</author><pubDate>Tue, 26 Dec 2017 15:27:41 +0800</pubDate><description><![CDATA[显示器扫描方式分为逐行扫描和隔行扫描：逐行扫描是扫描从屏幕左上角一点开始，从左像右逐点扫描，每扫描完一行,电子束回到屏幕的左边下一行的起始位置，在这期间，CRT对电子束进行消隐，每行结束时，用行同步信号进行同步；当扫描完所有的行，形成一帧，用场同步信号进行场同步，并使扫描回到屏幕左上方，同时进行场消隐,开始下一帧。隔行扫描是指电子束扫描时每隔一行扫一线，完成一屏后在返回来扫描剩下的线，隔行扫描的显]]></description><category></category></item></channel></rss>