VLC视频尺寸获取不对？？？1280720的视频用libvlc_video_get_size获取到视频尺寸是 1280738

zaxai 2017-03-23 09:04:13

1280*720的视频用libvlc_video_get_size获取到视频尺寸是 1280*738
1920*1080的视频用libvlc_video_get_size获取到视频尺寸是 1920*1090
如何才能正确获得视频尺寸，有知道相关api得不？

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顾染尘 2020-04-14

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楼主您好，请问VLC怎么获取视频尺存呀？

sfc0907 2017-09-29

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刚遇到这个问题：请问前辈这个问题解决了么？能告知一下原因么？谢谢！

路漫漫其修远. 2017-05-11

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编码器参数不对。

zaxai 2017-03-23

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貌似VLC自己也有这个分辨率，但是libvlc_video_get_size获取到的是分辨率，并不是显示分辨率，求问下如何获取显示分辨率

这个是vlc库，结合博客可以实现在qt下使用vlc库

//创建初始化播放器资源 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] extern public static IntPtr libvlc_new(int argc, IntPtr argv); //创建播放器实例 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr libvlc_media_player_new(IntPtr libvlc_instance); // 释放libvlc实例 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_release(IntPtr libvlc_instance); //获取库版本信息 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern String libvlc_get_version(); // 从视频来源(例如Url)构建一个libvlc_meida RTSP [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr libvlc_media_new_location(IntPtr libvlc_instance, IntPtr path); // 从本地文件路径构建一个libvlc_media rtsp串流不适合调用此接口 // [MarshalAs(UnmanagedType.LPStr)] string path [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr libvlc_media_new_path(IntPtr libvlc_instance, IntPtr path); /// /// 影片长度 /// /// /// [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr libvlc_media_player_get_length(IntPtr libvlc_media_player); //释放对象 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_release(IntPtr libvlc_media_inst); // 将视频(libvlc_media)绑定到播放器上 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_set_media(IntPtr libvlc_media_player, IntPtr libvlc_media); //创建(libvlc_media)播放窗口 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] publ

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C# 调用vlc播放器用到的库 libvlc\win-x86 libvlc\win-x64

//创建初始化播放器资源 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] extern public static IntPtr libvlc_new(int argc, IntPtr argv); //创建播放器实例 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr libvlc_media_player_new(IntPtr libvlc_instance); // 释放libvlc实例 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_release(IntPtr libvlc_instance); //获取库版本信息 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern String libvlc_get_version(); // 从视频来源(例如Url)构建一个libvlc_meida RTSP [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr libvlc_media_new_location(IntPtr libvlc_instance, IntPtr path); // 从本地文件路径构建一个libvlc_media rtsp串流不适合调用此接口 // [MarshalAs(UnmanagedType.LPStr)] string path [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr libvlc_media_new_path(IntPtr libvlc_instance, IntPtr path); ///

/// 影片长度 ///

/// /// [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern IntPtr libvlc_media_player_get_length(IntPtr libvlc_media_player); //释放对象 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_release(IntPtr libvlc_media_inst); // 将视频(libvlc_media)绑定到播放器上 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_set_media(IntPtr libvlc_media_player, IntPtr libvlc_media); //创建(libvlc_media)播放窗口 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_new_from_media(IntPtr libvlc_media_player); // 设置图像输出的窗口 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_set_hwnd(IntPtr libvlc_mediaplayer, Int32 drawable); //播放 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_play(IntPtr libvlc_mediaplayer); //暂停 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_pause(IntPtr libvlc_mediaplayer); //停止 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_stop(IntPtr libvlc_mediaplayer); // 解析视频资源的媒体信息(如时长等) [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_parse(IntPtr libvlc_media); // 返回视频的时长(必须先调用libvlc_media_parse之后，该函数才会生效) [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern Int64 libvlc_media_get_duration(IntPtr libvlc_media); // 当前播放的时间 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern Int64 libvlc_media_player_get_time(IntPtr libvlc_mediaplayer); // 设置播放位置(拖动) [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_set_time(IntPtr libvlc_mediaplayer, Int64 time); ///

/// /// 经典0 /// 完整路径，文件名英文或下划线开头 /// /// /// [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern int libvlc_video_take_snapshot(IntPtr libvlc_mediaplayer, uint num, IntPtr filePath, uint i_width, uint i_height); //media player release [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_media_player_release(IntPtr libvlc_mediaplayer); // 获取音量 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern int libvlc_audio_get_volume(IntPtr libvlc_media_player); //设置音量 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_audio_set_volume(IntPtr libvlc_media_player, int volume); // 设置全屏 [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern void libvlc_set_fullscreen(IntPtr libvlc_media_player, int isFullScreen); ///

///判断是否可以录像 ///

/// /// //Can the media player record the current media? [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern bool libvlc_media_player_is_recordable(IntPtr libvlc_media_player); ///

///判断是否在录像 ///

/// /// [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern bool libvlc_media_player_is_recording(IntPtr libvlc_media_player); ///

/// 录像开始 ///

/// /// 保存路径+文件名（d:\\record (将在D盘根目录保存为record.mp4)） /// [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern int libvlc_media_player_record_start(IntPtr libvlc_media_player, IntPtr psz_PathFilename); ///

/// 录像停止 ///

/// /// [DllImport("libvlc", CallingConvention = CallingConvention.Cdecl)] public static extern int libvlc_media_player_record_stop(IntPtr libvlc_media_player);

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