C# System.Video类代码示例

 public void InsertOrUpdateVideo(Video video)
 {
     _context.Entry(video).State = video.VideoID == 0 ? EntityState.Added : EntityState.Modified;
     foreach (var videoAsset in video.Assets)
         _context.Entry(videoAsset).State = videoAsset.VideoAssetID == 0 ? EntityState.Added : EntityState.Modified;
     _context.SaveChanges();
 }

        public bool AddToMyFavorites(Video i_Video)
        {
            bool exsit = false;

            if (i_Video != null)
            {
                if (MyFavoritesVideos.Count > 0)
                {
                    foreach (Video currentVideo in MyFavoritesVideos)
                    {
                        if (currentVideo.VideoId == i_Video.VideoId)
                        {
                            exsit = true;
                            break;
                        }
                    }
                }
            }
            else
            {
                throw new ArgumentNullException("You must choose video!");
            }

            if (!exsit)
            {
                MyFavoritesVideos.Add(i_Video);
            }

            return exsit;
        }

        public async Task<ActionResult> upload()
        {
            var youtubeService = await GetYouTubeService();

            var channels = youtubeService.Channels.List("");
            var video = new Video();
            // video.Snippet.
            video.Snippet = new VideoSnippet();
            video.Snippet.ChannelId = channels.Id;
            video.Snippet.Title = "Monica Video";
            video.Snippet.Description = "Monica Video Description";
            video.Snippet.Tags = new string[] { "monica", "vidzapper", "The Assetry" };
            video.Snippet.CategoryId = "22"; // See https://developers.google.com/youtube/v3/docs/videoCategories/list
            video.Status = new VideoStatus();
            video.Status.PrivacyStatus = "unlisted"; // or "private" or "public"
            var filePath = Server.MapPath("~/App_Data/monica.mp4");// @"REPLACE_ME.mp4"; // Replace with path to actual movie file.

            using (var fileStream = new FileStream(filePath, FileMode.Open))
            {
                var videosInsertRequest = youtubeService.Videos.Insert(video, "snippet,status", fileStream, "video/*");
                videosInsertRequest.ProgressChanged += videosInsertRequest_ProgressChanged;
                videosInsertRequest.ResponseReceived += videosInsertRequest_ResponseReceived;

                var tmp = await videosInsertRequest.UploadAsync();
                Console.Write(tmp.BytesSent);
            }

            return View();
        }

        public async Task Run(Stream fileStream)
        {
            string CLIENT_ID = "xxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com";  // Replace with your client id
            string CLIENT_SECRET = "xxxxxxxxxxxxxxxxxxxxxxxx";  // Replace with your secret

            var youtubeService = AuthenticateOauth(CLIENT_ID, CLIENT_SECRET, "SingleUser");

            var video = new Video();
            video.Snippet = new VideoSnippet();
            video.Snippet.Title = "Default Video Title " + new Guid();
            video.Snippet.Description = "Default Video Description";
            video.Snippet.Tags = new string[] { "tag1", "tag2" };
            video.Snippet.CategoryId = "22";
            video.Status = new VideoStatus();
            video.Status.PrivacyStatus = "unlisted"; // or "private" or "public"

            const int KB = 0x400;
            var minimumChunkSize = 50 * KB;

            using (fileStream)
            {
                var videosInsertRequest = youtubeService.Videos.Insert(video, "snippet,status", fileStream, "video/*");
                videosInsertRequest.ProgressChanged += videosInsertRequest_ProgressChanged;
                videosInsertRequest.ResponseReceived += videosInsertRequest_ResponseReceived;
                videosInsertRequest.ChunkSize = minimumChunkSize * 8;

                await videosInsertRequest.UploadAsync();
            }
        }

        public void Encode(Video video)
        {
            // Video encoding logic

            foreach (var channel in _notificationChannels)
                channel.Send(new Message());
        }

        private async void BtPickVideoClick(object sender, RoutedEventArgs e)
        {
            App app = Application.Current as App;

            if (app == null)
                return;
            FileOpenPicker openPicker = new FileOpenPicker
            {
                ViewMode = PickerViewMode.Thumbnail,
                SuggestedStartLocation = PickerLocationId.VideosLibrary
            };
            openPicker.FileTypeFilter.Add(".avi");
            openPicker.FileTypeFilter.Add(".mp4");

            StorageFile file = await openPicker.PickSingleFileAsync();
            if (file != null)
            {
                var client = new VideosServiceClient(app.EsbUsername, app.EsbPassword, app.EsbAccessKey);
                Video video = new Video { Title = file.DisplayName, Tags = file.DisplayName, Synopse = file.DisplayName };
                this.tblock_PostVideoResult.Text = await client.CreateVideoAsync(file, video);
            }
            else
            {
                this.tblock_PostVideoResult.Text = "Error reading file";
            }

        }

        private void btn_upload_Click(object sender, RoutedEventArgs e)
        {
            btn_upload.IsEnabled = false;
            btn_upload.Content = "Uploading";
            btn_cancel.IsEnabled = true;

            uploadVideo = new Video();
            uploadVideo.Title = txt_title.Text.ToString();
            uploadVideo.Description = txt_description.Text.ToString();
            uploadVideo.Tags.Add(new MediaCategory("Autos", YouTubeNameTable.CategorySchema));
            uploadVideo.Keywords = txt_keywords.Text.ToString();
            if (cb_privacy.SelectedIndex == 1)
            {
                uploadVideo.Private = true;
            }
            else
            {
                uploadVideo.Private = false;
            }
            uploadVideo.YouTubeEntry.MediaSource = new MediaFileSource(txt_video_path.Text.ToString(), getMimeType(txt_video_path.Text.ToString()));

            bw = new BackgroundWorker();
            bw.WorkerSupportsCancellation = true;
            bw.DoWork += new DoWorkEventHandler(bw_DoWork);
            bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw_RunWorkerCompleted);

            if (bw.IsBusy != true)
            {
                bw.RunWorkerAsync();
            }
        }

        public async static void search(string query)
        {        
            using(WebClient c = new WebClient())
            {                               
                c.Headers.Add("Content-Type", "application/json");
                var requestUri = new Uri(string.Format("{0}/search?part=snippet&q={1}&maxResults=50&key={2}&type=video&videoCategoryId=10", API_ENDPOINT, query, API_KEY));
                var json = await c.DownloadStringTaskAsync(requestUri);
                var jsonObject = JsonConvert.DeserializeObject<YouTubeResponse>(json);

                videos.Clear();                       

                foreach(var videoResult in jsonObject.items)
                {
                    var video = new Video();

                    video.title = Encoding.ASCII.GetString(Encoding.ASCII.GetBytes(videoResult.snippet.title));
                    video.id = videoResult.id.videoId;
                    video.date = videoResult.snippet.publishedAt;

                    if (video.isValid())
                    {
                        videos.Add(video);
                    }
                }
            }
        }

        private void configSource_browseBtn_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.CheckFileExists = true;
            ofd.CheckPathExists = true;
            ofd.Multiselect = false;

            // TODO: Filter extensions to video exclusively

            if (ofd.ShowDialog() == DialogResult.OK)
            {
                configSource_browsePath.Text = ofd.FileName;
                FileName = ofd.FileName;

                StartFrame = 0;

                vid = new Video(FileName); // TODO: What if exception here?
                EndFrame = vid.CountFrames() - 1;

                SetupTextboxValidation();

                configSource_startFrame.Value = 0;
                configSource_endFrame.Value = EndFrame;

                SetStartFramePreview((int)configSource_startFrame.Value);
                SetEndFramePreview((int)configSource_endFrame.Value);

                configSource_startFrame.Enabled = true;
                configSource_endFrame.Enabled = true;
            }
        }

 /// <summary>動画へアクセスするページを取得する</summary>
 /// <param name="Target">ターゲット動画</param>
 public VideoPage GetVideoPage(Video.VideoInfo Target)
 {
     if (Target.videoPage != null)
         return Target.videoPage;
     else
         return Target.videoPage = new VideoPage(Target, this, context);
 }

        public static FullVideo Create(Google.YouTube.Video ytVideo = null)
        {
            if (ytVideo == null) {
                throw new Exception("Invalid link");
            }
            CurtDevDataContext db = new CurtDevDataContext();
            Video new_video = new Video {
                embed_link = ytVideo.VideoId,
                title = ytVideo.Title,
                screenshot = (ytVideo.Thumbnails.Count > 0) ? ytVideo.Thumbnails[2].Url : "/Content/img/noimage.jpg",
                description = ytVideo.Description,
                watchpage = ytVideo.WatchPage.ToString(),
                youtubeID = ytVideo.VideoId,
                dateAdded = DateTime.Now,
                sort = (db.Videos.Count() == 0) ? 1 : db.Videos.OrderByDescending(x => x.sort).Select(x => x.sort).First() + 1
            };
            db.Videos.InsertOnSubmit(new_video);
            db.SubmitChanges();

            FullVideo fullvideo = new FullVideo {
                videoID = new_video.videoID,
                embed_link = new_video.embed_link,
                dateAdded = new_video.dateAdded,
                sort = new_video.sort,
                videoTitle = new_video.title,
                thumb = (ytVideo.Thumbnails.Count > 0) ? ytVideo.Thumbnails[0].Url : "/Content/img/noimage.jpg"
            };

            return fullvideo;
        }

        protected void Create_Click(object sender, EventArgs e)
        {
            var playlist = new Playlist()
            {
                Title = this.Server.HtmlEncode(this.TitleTextBox.Text),
                Description = this.Server.HtmlEncode(this.Description.Text),
                CreationDate = DateTime.UtcNow,
                CreatorId = this.User.Identity.GetUserId()
            };

            Video video = this.Videos.GetByUrl(this.Server.HtmlEncode(this.Url.Text));
            if (video == null)
            {
                video = new Video()
                {
                    Url = this.Server.HtmlEncode(this.Url.Text)
                };
            }

            Category category = this.Categories.All().Where(c => c.Name == this.CategorySelect.SelectedItem.Text).FirstOrDefault();

            playlist.Category = category;
            playlist.Videos.Add(video);

            this.Playlists.Create(playlist);
            this.Playlists.SaveChanges();
        }

 public void DeleteVideo(int videoID)
 {
     var video = new Video() { VideoID = videoID };
     _context.Videos.Attach(video);
     _context.Videos.Remove(video);
     _context.SaveChanges();
 }

        private void Tutorial_Load(object sender, EventArgs e)
        {
            int height = pnlTV.Height;
            int width = pnlTV.Width;
            try
            {
                video = new Video(System.IO.Path.Combine(Application.StartupPath, "RaagaHacker.avi"), false);
                video.Owner = pnlTV;
                pnlTV.Width = width;
                pnlTV.Height = height;
                video.Play();
            }
            catch (Exception ex)
            {
                frmException frm = new frmException();
                frm.ExceptionDialogTitle = "Tutorial_Load: Uanble to play video ";
                frm.ErrorMessage = ex.Message;
                frm.StrackTrace = ex.StackTrace;
                if (frm.ShowDialog() == DialogResult.OK)
                {
                    frm.Dispose();
                    frm = null;
                }
            }
            finally
            {

                if (video != null)
                {
                    video.Dispose();
                    video = null;
                }

            }
        }

        protected void BBuscador(String track)
        {
            string spotUrl = String.Format("http://ws.spotify.com/search/1/track?q={0}", track);
            WebClient spotService = new WebClient();
            spotService.Encoding = Encoding.UTF8;
            spotService.DownloadStringCompleted += new DownloadStringCompletedEventHandler(SpotService_DownloadTracksCompleted);
            spotService.DownloadStringAsync(new Uri(spotUrl));

            YouTubeRequest request = new YouTubeRequest(settings);
            YouTubeQuery query = new YouTubeQuery(YouTubeQuery.DefaultVideoUri);
            query.OrderBy = "relevance";
            query.Query = track;
            query.SafeSearch = YouTubeQuery.SafeSearchValues.None;
            Feed<Video> videoFeed = request.Get<Video>(query);
            if (videoFeed.Entries.Count() > 0)
            {
                video1 = videoFeed.Entries.ElementAt(0);
                literal1.Text = String.Format(embed, video1.VideoId);
                if (videoFeed.Entries.Count() > 1)
                {
                    video1 = videoFeed.Entries.ElementAt(1);
                    literal1.Text += String.Format(embed, video1.VideoId);
                }
            }
        }