标签:camera metro
上一篇文章介绍了在win8 metro 调用摄像头拍摄照片并将照片保存在相应的位置的功能,那么这一片文章主要介绍了的就是录制视频了,其实这个差不多,所用的思想也是一样的,因为图片和视频都可以转化为流文件,那么它们本质上都是一样的,但是还是有个别地方时不同的,接下来我们就介绍一下这个别地方的不同吧
下面是metro UI的代码:
<Page x:Class="Camera1.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:Camera1" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"> <Button x:Name="btnCamera" Content="打开摄像头" HorizontalAlignment="Left" Margin="67,179,0,0" VerticalAlignment="Top" Click="btnCamera_Click"/> <MediaElement x:Name="media" HorizontalAlignment="Left" Height="604" Margin="273,45,0,0" VerticalAlignment="Top" Width="746"/> <Button x:Name="btnSave" Content="保存视频" HorizontalAlignment="Left" Margin="67,316,0,0" VerticalAlignment="Top" Click="btnSave_Click"/> <TextBox x:Name="txtBox1" HorizontalAlignment="Left" Margin="70,440,0,0" TextWrapping="Wrap" VerticalAlignment="Top"/> </Grid> </Page>
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Runtime.InteropServices.WindowsRuntime; using Windows.Foundation; using Windows.Foundation.Collections; using Windows.UI.Xaml; using Windows.UI.Xaml.Controls; using Windows.UI.Xaml.Controls.Primitives; using Windows.UI.Xaml.Data; using Windows.UI.Xaml.Input; using Windows.UI.Xaml.Media; using Windows.UI.Xaml.Navigation; using Windows.Media.Capture; using Windows.UI.Xaml.Media.Imaging; using Windows.Storage; using Windows.Storage.Streams; using Windows.Storage.Pickers; // The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238 namespace Camera1 { /// <summary> /// An empty page that can be used on its own or navigated to within a Frame. /// </summary> public sealed partial class MainPage : Page { private StorageFile file = null; public MainPage() { this.InitializeComponent(); } private async void btnCamera_Click(object sender, RoutedEventArgs e) { CameraCaptureUI dialog = new CameraCaptureUI(); dialog.VideoSettings.Format = CameraCaptureUIVideoFormat.Mp4; file = await dialog.CaptureFileAsync(CameraCaptureUIMode.Video); if (file != null) { IRandomAccessStream fileStream = await file.OpenAsync(FileAccessMode.Read); media.SetSource(fileStream,file.ContentType); } } private async void btnSave_Click(object sender, RoutedEventArgs e) { FileSavePicker picker = new FileSavePicker(); picker.CommitButtonText = "保存"; picker.SuggestedFileName = "hello"; picker.FileTypeChoices.Add("图片",new string[]{".mp4",".avi",".mkv",".mpg",".rmvb"}); picker.SuggestedStartLocation = PickerLocationId.VideosLibrary; StorageFile filePath = await picker.PickSaveFileAsync(); if (filePath != null) { var streamRandom = await file.OpenAsync(FileAccessMode.Read); IBuffer buffer = RandomAccessStreamToBuffer(streamRandom); await FileIO.WriteBufferAsync(filePath, buffer); } } //将视频写入到缓冲区 private IBuffer RandomAccessStreamToBuffer(IRandomAccessStream randomstream) { Stream stream = WindowsRuntimeStreamExtensions.AsStreamForRead(randomstream.GetInputStreamAt(0)); MemoryStream memoryStream = new MemoryStream(); if (stream != null) { byte[] bytes = ConvertStreamTobyte(stream); if (bytes != null) { var binaryWriter = new BinaryWriter(memoryStream); binaryWriter.Write(bytes); } } IBuffer buffer = WindowsRuntimeBufferExtensions.GetWindowsRuntimeBuffer(memoryStream, 0, (int)memoryStream.Length); return buffer; } //将流转换成二进制 public static byte[] ConvertStreamTobyte(Stream input) { byte[] buffer = new byte[1024 * 1024]; using (MemoryStream ms = new MemoryStream()) { int read; while ((read = input.Read(buffer, 0, buffer.Length)) > 0) { ms.Write(buffer, 0, read); } return ms.ToArray(); } } } }
win8 metro 调用摄像头录制视频并将视频保存在相应的位置,布布扣,bubuko.com
win8 metro 调用摄像头录制视频并将视频保存在相应的位置
标签:camera metro
原文地址:http://blog.csdn.net/litianpenghaha/article/details/34421551