<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[师从小白]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/dadan1314</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; dadan1314]]></copyright><item><title><![CDATA[音频知识 参数分析]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/99846498</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/99846498</guid><author>dadan1314</author><pubDate>Fri, 28 Mar 2025 16:23:18 +0800</pubDate><description><![CDATA[通道布局





参考

通过pcm音频数据计算分贝

理解FFT和信号加窗原理及意义

dts音效大师教程
]]></description><category></category></item><item><title><![CDATA[opengl]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/108832111</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/108832111</guid><author>dadan1314</author><pubDate>Wed, 25 Sep 2024 19:32:44 +0800</pubDate><description><![CDATA[精度

精度级别：highpmediumplowp

默认精度：precision mediump float;



参考

OpenGL着色器（Shader）和GLSL语言的简单介绍

OpenGL着色语言GLSL中文手册
]]></description><category></category></item><item><title><![CDATA[service和systemctl以及supervisorctl]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/129811386</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/129811386</guid><author>dadan1314</author><pubDate>Tue, 28 Mar 2023 10:49:43 +0800</pubDate><description><![CDATA[程序路径/usr/bin/supervisorctl和配置目录/etc/systemd/system/chkconfig <service> on/off     加入/禁止开机启动。service <service> start/stop   服务启动/停止。程序路径/sbin/service和配置目录/etc/init.d。]]></description><category></category></item><item><title><![CDATA[autohotkey]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/129400051</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/129400051</guid><author>dadan1314</author><pubDate>Wed, 08 Mar 2023 11:38:48 +0800</pubDate><description><![CDATA[autohotkey script]]></description><category></category></item><item><title><![CDATA[音视频编码类型]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/113700935</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/113700935</guid><author>dadan1314</author><pubDate>Fri, 24 Feb 2023 10:09:44 +0800</pubDate><description><![CDATA[h264/avc h265/hevc h266/vvc vp8 vp9 av1 ]]></description><category></category></item><item><title><![CDATA[cario库]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/128011758</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/128011758</guid><author>dadan1314</author><pubDate>Thu, 24 Nov 2022 11:50:45 +0800</pubDate><description><![CDATA[cario]]></description><category></category></item><item><title><![CDATA[音视频封装格式]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/113559352</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/113559352</guid><author>dadan1314</author><pubDate>Mon, 07 Nov 2022 14:59:22 +0800</pubDate><description><![CDATA[ffmpeg mp4 ts m3u8]]></description><category></category></item><item><title><![CDATA[ffmpeg 模块分析]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/113251515</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/113251515</guid><author>dadan1314</author><pubDate>Thu, 26 May 2022 15:12:53 +0800</pubDate><description><![CDATA[av_strdup - 分配字符串，并复制内容
]]></description><category></category></item><item><title><![CDATA[docker基本使用]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/115440360</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/115440360</guid><author>dadan1314</author><pubDate>Sun, 17 Apr 2022 16:44:36 +0800</pubDate><description><![CDATA[获取

mac：https://download.docker.com/mac/static/stable/x86_64/

操作


]]></description><category></category></item><item><title><![CDATA[python]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/121990964</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/121990964</guid><author>dadan1314</author><pubDate>Fri, 17 Dec 2021 11:41:07 +0800</pubDate><description><![CDATA[python安装和配置信息]]></description><category></category></item><item><title><![CDATA[curl和tcpdump以及wireshark]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/120947723</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/120947723</guid><author>dadan1314</author><pubDate>Mon, 25 Oct 2021 11:24:33 +0800</pubDate><description><![CDATA[curl


# -X 指定http方法（ GET POST ）
curl -X POST "127.0.0.1:2021/interface"
# -d 参数用于发送POST请求的数据体
curl -d '{"test":1}'  "127.0.0.1:2021/interface"

tcpdump


tcpdump src host 10.1.85.19 and src port 48565 and dst host 10.1.85.21 and dst port 5090 -i any
tcp..]]></description><category></category></item><item><title><![CDATA[Visual Studio Code基本使用]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/115484225</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/115484225</guid><author>dadan1314</author><pubDate>Thu, 08 Apr 2021 20:15:30 +0800</pubDate><description><![CDATA[切换显示语言

快捷键【Ctrl+Shift+P】

在弹出的搜索框中输入【configure language】，然后选择搜索出来的【Configure Display Language】

选择zh-cn，没有就安装
]]></description><category></category></item><item><title><![CDATA[Windows系统DirectX]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/113036182</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/113036182</guid><author>dadan1314</author><pubDate>Sat, 23 Jan 2021 12:04:56 +0800</pubDate><description><![CDATA[#include &lt;direct.h&gt;

dshow

 dshow.h -strmiids.lib 待确认


ICreateDevEnum* pDevEnum = NULL;
CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, IID_ICreateDevEnum, reinterpret_cast&lt;void**&gt;(&amp;pDevEnum));
IEnumMoniker* pEnum =..]]></description><category></category></item><item><title><![CDATA[centos 系统]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/112791427</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/112791427</guid><author>dadan1314</author><pubDate>Mon, 18 Jan 2021 18:44:39 +0800</pubDate><description><![CDATA[安装


# root登录，修改后多次重新网络，虚拟机共享主机ip
cd /etc/sysconfig/network-scripts/
vi ifcfg-ens33
service network restart
ping www.baidu.com
yum groupinstall "X Window System"
yum groupinstall "GNOME Desktop"


设置dos和图形启动


systemctl get-default
# 修改模式命令：
systemctl set.]]></description><category></category></item><item><title><![CDATA[Windows系统常见API]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/112249478</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/112249478</guid><author>dadan1314</author><pubDate>Tue, 05 Jan 2021 18:13:57 +0800</pubDate><description><![CDATA[Core Audio

IMMDeviceEnumerator
			枚举音频设备集（IMMDeviceCollection），获取默认设备，通过ID获取设备(IMMDevice)，注册通知，取消通知(IMMNotificationClient)
		IMMDeviceCollection
			音频设备集中数量，通过索引取出设备(IMMDevice)
		IMMNotificationClient
			
			IUnknow接口，继承实现IUnknow和设备状态改变、设备增加、设备删除、默认设备改变和设]]></description><category></category></item><item><title><![CDATA[ffmpeg 编译]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/110732556</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/110732556</guid><author>dadan1314</author><pubDate>Sun, 06 Dec 2020 11:39:22 +0800</pubDate><description><![CDATA[配置

帮助

 切换到ffmpeg根目录

 ./configure --help

 列举支持项


Help options:
  --help                   print this message
  --quiet                  Suppress showing informative output
  --list-decoders          show all available decoders
  --list-encoders  ...]]></description><category></category></item><item><title><![CDATA[音视频 ffmpeg库使用]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/110500924</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/110500924</guid><author>dadan1314</author><pubDate>Wed, 02 Dec 2020 21:47:55 +0800</pubDate><description><![CDATA[源代码


extern "C"
{
    #include "libavformat/avformat.h"
    #include "libavcodec/avcodec.h"
    #include "libswscale/swscale.h"
    #include "libswresample/swresample.h"
    #include "libavfilter/avfilter.h"
    #include "libavfilter/buffersink.h"
    #i.]]></description><category></category></item><item><title><![CDATA[gtest]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/108420325</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/108420325</guid><author>dadan1314</author><pubDate>Sat, 05 Sep 2020 15:49:53 +0800</pubDate><description><![CDATA[常见


#include &lt;gtest/gtest.h&gt;

int main(int argc, char **argv)
{
    // testing::GTEST_FLAG(output) = "xml:";
    testing::InitGoogleTest(&amp;argc, argv);
    return RUN_ALL_TESTS();
}

TEST(test_suite_name, test_case_name)
{
}

命令


--gtest_list_te]]></description><category></category></item><item><title><![CDATA[object-c/c++]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/107533981</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/107533981</guid><author>dadan1314</author><pubDate>Thu, 23 Jul 2020 12:44:38 +0800</pubDate><description><![CDATA[.m文件 oc文件，完全兼容C语言

 .mm文件 oc++文件，兼容C++语言


#import "*.h"



NSString

NSInteger


// 声明
@interface Student : NSObject
{

}

- (id)init；

+ (void)test；

@end

// 实现
@implementation Student
- (id)init
{
    self = [super init]
    if(self)
    {

   ...]]></description><category></category></item><item><title><![CDATA[Qt基本使用]]></title><link>https://blog.youkuaiyun.com/dadan1314/article/details/107204287</link><guid>https://blog.youkuaiyun.com/dadan1314/article/details/107204287</guid><author>dadan1314</author><pubDate>Wed, 08 Jul 2020 14:45:46 +0800</pubDate><description><![CDATA[模板

容器界面安装定制的子界面以列表形式展示，

QListWidget

addItem      - 将QListWidgetItem添加容器界面
	setItemWidget - 为QListWidgetItem指定展示界面（把数据直接设到界面对象中）
QListWidgetItem

setSizeHint    -为QListWidgetItem指定界面尺寸
...]]></description><category></category></item></channel></rss>