通过libvlc库实现一款视频播放器

简介

libvlc是一款开源媒体播放器库,由 VideoLAN 团队开发。使用libvlc库可快速实现一款播放器，如果要求项目体积比较小，建议使用FFMPEG实现。

libvlc库下载地址

#下载不同平台SDK库
http://download.videolan.org/pub/videolan/vlc/
#直接下载windowsSDK包
http://download.videolan.org/pub/videolan/vlc/3.0.8/win64/vlc-3.0.8-win64.7z

需要依赖的库文件

CMake引入

cmake_minimum_required(VERSION 3.16)
project(vlc_demo)

set(CMAKE_CXX_STANDARD 14)

if(MSVC)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8")
endif()

#定制二进制执行文件的输出路径
SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/vlc_sdk)

#指定vlc头文件目录
include_directories(${PROJECT_SOURCE_DIR}/vlc_sdk/include)
#指定lib文件存放目录
link_directories(${PROJECT_SOURCE_DIR}/vlc_sdk/lib)

add_executable(vlc_demo main.cpp)
#引入lib文件
target_link_libraries(vlc_demo libvlc libvlccore)

C++代码实现

#include <iostream>
#include <thread>

//解决vlc库在windows缺少SSIZE_T声明
#ifdef _WIN32
#include <basetsd.h>
typedef SSIZE_T ssize_t;
#endif

#include <vlc/vlc.h>

//heliang
int main() {

    //1.创建vlc实例
    libvlc_instance_t *vlcNew=libvlc_new(0,NULL);

    //2.加载本地视频文件
    libvlc_media_t *media=libvlc_media_new_path(vlcNew,"E:\\1.mp4");

    //3.创建一个流媒体播放器
    libvlc_media_player_t *mediaPlayer=libvlc_media_player_new_from_media(media);

    //将流媒体播放器绑定到某个窗口句柄上
//    libvlc_media_player_set_hwnd(mediaPlayer, (void*)libvlc_WId);

    //释放引用次数
    libvlc_media_release(media);

    //4.开始播放视频
    libvlc_media_player_play(mediaPlayer);




    //5.防止播放视频退出
    while (true)
    {
        std::this_thread::sleep_for(std::chrono::seconds(1));
        //获取视频播放的时长
        libvlc_time_t duration=libvlc_media_get_duration(media);
        //转换秒
        duration=duration/1000;
        //时
        int hour= duration / 3600;
        //分
        int minute=(duration % 3600)/60;
        //秒
        int second= duration % 60;
        std::cout << hour << ":" << minute << ":" <<second << std::endl;

        libvlc_media_player_get_position(mediaPlayer);

    }

    return 0;
}