如何 设置视频格式大小

[linfeng101825]

// 窗口消息 WM_CAP... 哪个是送到 AVICAP 窗口
// ------------------------------------------------------------------

// 开始定义消息参数 整数型
const avicap32='avicap32.dll';

WM_CAP_START= WM_USER=1024;

// start of unicode messages
WM_CAP_UNICODE_START= WM_USER+100; //开始

WM_CAP_GET_CAPSTREAMPTR= (WM_CAP_START+ 1); //获得 CAPSTR EAMPTR

WM_CAP_SET_CALLBACK_ERROR= (WM_CAP_START+ 2); //设置收回错误
WM_CAP_SET_CALLBACK_STATUS= (WM_CAP_START+ 3); //设置收回状态

WM_CAP_SET_CALLBACK_YIELD= (WM_CAP_START+ 4); //设置收回出产
WM_CAP_SET_CALLBACK_FRame= (WM_CAP_START+ 5); //设置收回结构
WM_CAP_SET_CALLBACK_VIDEOSTREAM= (WM_CAP_START+ 6); //设置收回视频流
WM_CAP_SET_CALLBACK_WAVESTREAM= (WM_CAP_START+ 7); //设置收回视频波流
WM_CAP_GET_USER_DATA =(WM_CAP_START+ 8); //获得使用者数据
WM_CAP_SET_USER_DATA =(WM_CAP_START+ 9) ; //设置使用者数据

WM_CAP_DRIVER_CONNECT =(WM_CAP_START+ 10); //驱动程序连接
WM_CAP_DRIVER_DISCONNECT =(WM_CAP_START+ 11); //断开启动程序连接

WM_CAP_DRIVER_GET_NAME =(WM_CAP_START+ 12); //获得驱动程序名字
WM_CAP_DRIVER_GET_VERSION =(WM_CAP_START+ 13); //获得驱动程序版本

WM_CAP_DRIVER_GET_CAPS =(WM_CAP_START+ 14); //获得驱动程序帽子

WM_CAP_FILE_SET_CAPTURE_FILE =(WM_CAP_START+ 20); //设置捕获文件
WM_CAP_FILE_GET_CAPTURE_FILE =(WM_CAP_START+ 21); //获得捕获文件
WM_CAP_FILE_SAVEAS =(WM_CAP_START+ 23); //另存文件为
WM_CAP_FILE_SAVEDIB =(WM_CAP_START+ 25); //保存文件

// out of order to save on ifdefs
WM_CAP_FILE_ALLOCATE =(WM_CAP_START+ 22); //分派文件
WM_CAP_FILE_SET_INFOCHUNK =(WM_CAP_START+ 24); //设置开始文件

WM_CAP_EDIT_COPY =(WM_CAP_START+ 30); //编辑复制

WM_CAP_SET_AUDIOFORMAT =(WM_CAP_START+ 35); //设置音频格式
WM_CAP_GET_AUDIOFORMAT =(WM_CAP_START+ 36); //捕获音频格式

WM_CAP_DLG_VIDEOFORMAT =(WM_CAP_START+ 41); //1065 打开视频格式设置对话框
WM_CAP_DLG_VIDEOSOURCE =(WM_CAP_START+ 42); //1066 打开属性设置对话框，设置对比度、亮度等。
WM_CAP_DLG_VIDEODISPLAY =(WM_CAP_START+ 43); //1067 打开视频显示
WM_CAP_GET_VIDEOFORMAT =(WM_CAP_START+ 44); //1068 获得视频格式
WM_CAP_SET_VIDEOFORMAT =(WM_CAP_START+ 45); //1069 设置视频格式
WM_CAP_DLG_VIDEOCOMPRESSION =(WM_CAP_START+ 46); //1070 打开压缩设置对话框

WM_CAP_SET_PREVIEW =(WM_CAP_START+ 50); //设置预览
WM_CAP_SET_OVERLAY =(WM_CAP_START+ 51); //设置覆盖
WM_CAP_SET_PREVIEWRATE =(WM_CAP_START+ 52); //设置预览比例
WM_CAP_SET_SCALE =(WM_CAP_START+ 53); //设置刻度
WM_CAP_GET_STATUS =(WM_CAP_START+ 54); //获得状态
WM_CAP_SET_SCROLL =(WM_CAP_START+ 55); //设置卷

WM_CAP_GRAB_FRame =(WM_CAP_START+ 60); //逮捕结构
WM_CAP_GRAB_FRame_NOSTOP =(WM_CAP_START+ 61); //停止逮捕结构

WM_CAP_SEQUENCE =(WM_CAP_START+ 62); //次序
WM_CAP_SEQUENCE_NOFILE =(WM_CAP_START+ 63); //没有文件
WM_CAP_SET_SEQUENCE_SETUP =(WM_CAP_START+ 64); //设置安装次序
WM_CAP_GET_SEQUENCE_SETUP =(WM_CAP_START+ 65); //获得安装次序

WM_CAP_SET_MCI_DEVICE =(WM_CAP_START+ 66); //设置媒体控制接口
WM_CAP_GET_MCI_DEVICE =(WM_CAP_START+ 67); //获得媒体控制接口

WM_CAP_STOP =(WM_CAP_START+ 68); //停止
WM_CAP_ABORT =(WM_CAP_START+ 69); //异常中断

WM_CAP_SINGLE_FRame_OPEN =(WM_CAP_START+ 70); //打开单一的结构
WM_CAP_SINGLE_FRame_CLOSE =(WM_CAP_START+ 71); //关闭单一的结构
WM_CAP_SINGLE_FRame =(WM_CAP_START+ 72); //单一的结构

WM_CAP_PAL_OPEN =(WM_CAP_START+ 80); //打开视频
WM_CAP_PAL_SAVE =(WM_CAP_START+ 81); //保存视频

WM_CAP_PAL_PASTE =(WM_CAP_START+ 82); //粘贴视频
WM_CAP_PAL_AUTOCREATE =(WM_CAP_START+ 83); //自动创造
WM_CAP_PAL_MANUALCREATE =(WM_CAP_START+ 84); //手动创造

// Following added post VFW 1.1
WM_CAP_SET_CALLBACK_CAPCONTROL =(WM_CAP_START+ 85); // 设置收回的错误

WM_CAP_END =WM_CAP_SET_CALLBACK_CAPCONTROL;


如何 设置视频 大小

上面是我从网上看到的一些 设置视频的一些参数，，，视频图像已经做出来了，现在想改变一下视频的格式大小，比如现在的是800*600,想改成640*480，，，需要改哪些参数，怎么该，希望能给指点下，谢谢

[LMAOhuaNL]

http://www.developer.nokia.com/Community/Discussion/showthread.php?120262-%E5%A6%82%E4%BD%95%E8%AE%BE%E7%BD%AE%E8%A7%86%E9%A2%91%E6%A0%BC%E5%BC%8F%E5%8F%8A%E5%A4%A7%E5%B0%8F