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using DownKyi.Core.BiliApi.BiliUtils;
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using DownKyi.Core.BiliApi.VideoStream.Models;
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using DownKyi.Core.Settings;
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using DownKyi.Core.Settings.Models;
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using DownKyi.Core.Utils;
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using DownKyi.ViewModels.PageViewModels;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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namespace DownKyi.Services
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{
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internal static class Utils
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{
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/// <summary>
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/// 从视频流更新VideoPage
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/// </summary>
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/// <param name="playUrl"></param>
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/// <param name="page"></param>
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internal static void VideoPageInfo(PlayUrl playUrl, VideoPage page)
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{
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if (playUrl == null)
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{
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return;
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}
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// 视频流信息
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page.PlayUrl = playUrl;
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// 获取设置
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UserInfoSettings userInfo = SettingsManager.GetInstance().GetUserInfo();
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int defaultQuality = SettingsManager.GetInstance().GetQuality();
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VideoCodecs videoCodecs = SettingsManager.GetInstance().GetVideoCodecs();
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int defaultAudioQuality = SettingsManager.GetInstance().GetAudioQuality();
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// 未登录时，最高仅720P
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if (userInfo.Mid == -1)
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{
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if (defaultQuality > 64)
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{
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defaultQuality = 64;
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}
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}
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// 非大会员账户登录时，如果设置的画质高于1080P，则这里限制为1080P
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if (!userInfo.IsVip)
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{
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if (defaultQuality > 80)
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{
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defaultQuality = 80;
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}
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}
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if (playUrl.Durl != null)
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{
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// 音质
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// 画质
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// 视频编码
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// 时长
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return;
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}
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if (playUrl.Dash != null)
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{
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// 如果video列表或者audio列表没有内容，则返回false
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if (playUrl.Dash.Video == null) { return; }
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if (playUrl.Dash.Video.Count == 0) { return; }
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// 音质
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page.AudioQualityFormatList = GetAudioQualityFormatList(playUrl, defaultAudioQuality);
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if (page.AudioQualityFormatList.Count > 0)
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{
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page.AudioQualityFormat = page.AudioQualityFormatList[0];
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}
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// 画质 & 视频编码
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page.VideoQualityList = GetVideoQualityList(playUrl, userInfo, defaultQuality, videoCodecs);
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if (page.VideoQualityList.Count > 0)
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{
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page.VideoQuality = page.VideoQualityList[0];
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}
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// 时长
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page.Duration = Format.FormatDuration(playUrl.Dash.Duration);
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}
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}
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/// <summary>
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/// 设置音质
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/// </summary>
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/// <param name="playUrl"></param>
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/// <param name="defaultAudioQuality"></param>
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/// <returns></returns>
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private static ObservableCollection<string> GetAudioQualityFormatList_old(PlayUrl playUrl, int defaultAudioQuality)
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{
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List<string> audioQualityFormatList = new List<string>();
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if (playUrl.Dash.Audio == null)
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{
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return new ObservableCollection<string>();
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}
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foreach (PlayUrlDashVideo audio in playUrl.Dash.Audio)
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{
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// 音质id大于设置画质时，跳过
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if (audio.Id > defaultAudioQuality) { continue; }
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Quality audioQuality = Constant.GetAudioQualities().FirstOrDefault(t => { return t.Id == audio.Id; });
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if (audioQuality != null)
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{
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ListHelper.AddUnique(audioQualityFormatList, audioQuality.Name);
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}
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}
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audioQualityFormatList.Sort(new StringLogicalComparer<string>());
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audioQualityFormatList.Reverse();
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return new ObservableCollection<string>(audioQualityFormatList);
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}
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/// <summary>
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/// 设置音质
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/// </summary>
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/// <param name="playUrl"></param>
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/// <param name="defaultAudioQuality"></param>
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/// <returns></returns>
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private static ObservableCollection<string> GetAudioQualityFormatList(PlayUrl playUrl, int defaultAudioQuality)
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{
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List<string> audioQualityFormatList = new List<string>();
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List<Quality> audioQualities = Constant.GetAudioQualities();
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if (playUrl.Dash.Audio != null && playUrl.Dash.Audio.Count > 0)
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{
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foreach (PlayUrlDashVideo audio in playUrl.Dash.Audio)
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{
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// 音质id大于设置音质时，跳过
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if (audio.Id > defaultAudioQuality) { continue; }
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Quality audioQuality = audioQualities.FirstOrDefault(t => { return t.Id == audio.Id; });
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if (audioQuality != null)
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{
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ListHelper.AddUnique(audioQualityFormatList, audioQuality.Name);
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}
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}
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}
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if (audioQualities[3].Id <= defaultAudioQuality - 1000 && playUrl.Dash.Dolby != null)
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{
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if (playUrl.Dash.Dolby.Audio != null && playUrl.Dash.Dolby.Audio.Count > 0)
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{
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ListHelper.AddUnique(audioQualityFormatList, audioQualities[3].Name);
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}
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}
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if (audioQualities[4].Id <= defaultAudioQuality - 1000 && playUrl.Dash.Flac != null)
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{
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if (playUrl.Dash.Flac.Audio != null)
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{
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ListHelper.AddUnique(audioQualityFormatList, audioQualities[4].Name);
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}
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}
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audioQualityFormatList.Sort(new StringLogicalComparer<string>());
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audioQualityFormatList.Reverse();
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return new ObservableCollection<string>(audioQualityFormatList);
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}
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/// <summary>
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/// 设置画质 & 视频编码
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/// </summary>
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/// <param name="playUrl"></param>
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/// <param name="defaultQuality"></param>
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/// <param name="userInfo"></param>
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/// <param name="videoCodecs"></param>
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/// <returns></returns>
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private static List<VideoQuality> GetVideoQualityList(PlayUrl playUrl, UserInfoSettings userInfo, int defaultQuality, VideoCodecs videoCodecs)
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{
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List<VideoQuality> videoQualityList = new List<VideoQuality>();
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if (playUrl.Dash.Video == null)
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{
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return videoQualityList;
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}
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foreach (PlayUrlDashVideo video in playUrl.Dash.Video)
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{
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// 画质id大于设置画质时，跳过
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if (video.Id > defaultQuality) { continue; }
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// 非大会员账户登录时
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if (!userInfo.IsVip)
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{
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// 如果画质为720P60，跳过
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if (video.Id == 74) { continue; }
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}
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string qualityFormat = string.Empty;
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PlayUrlSupportFormat selectedQuality = playUrl.SupportFormats.FirstOrDefault(t => t.Quality == video.Id);
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if (selectedQuality != null)
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{
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qualityFormat = selectedQuality.NewDescription;
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}
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// 寻找是否已存在这个画质
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// 不存在则添加，存在则修改
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string codecName = GetVideoCodecName(video.Codecs);
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VideoQuality videoQualityExist = videoQualityList.FirstOrDefault(t => t.Quality == video.Id);
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if (videoQualityExist == null)
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{
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List<string> videoCodecList = new List<string>();
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if (codecName != string.Empty)
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{
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ListHelper.AddUnique(videoCodecList, codecName);
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}
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VideoQuality videoQuality = new VideoQuality()
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{
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Quality = video.Id,
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QualityFormat = qualityFormat,
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VideoCodecList = videoCodecList
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};
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videoQualityList.Add(videoQuality);
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}
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else
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{
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if (!videoQualityList[videoQualityList.IndexOf(videoQualityExist)].VideoCodecList.Exists(t => t.Equals(codecName)))
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{
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if (codecName != string.Empty)
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{
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videoQualityList[videoQualityList.IndexOf(videoQualityExist)].VideoCodecList.Add(codecName);
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}
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}
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}
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// 设置选中的视频编码
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VideoQuality selectedVideoQuality = videoQualityList.FirstOrDefault(t => t.Quality == video.Id);
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if (selectedVideoQuality == null) { continue; }
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if (videoQualityList[videoQualityList.IndexOf(selectedVideoQuality)].VideoCodecList.Count == 1)
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{
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// 当获取的视频没有设置的视频编码时，执行
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videoQualityList[videoQualityList.IndexOf(selectedVideoQuality)].SelectedVideoCodec = videoQualityList[videoQualityList.IndexOf(selectedVideoQuality)].VideoCodecList[0];
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}
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// 设置选中的视频编码
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switch (videoCodecs)
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{
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case VideoCodecs.AVC:
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if (videoQualityList[videoQualityList.IndexOf(selectedVideoQuality)].VideoCodecList.Contains("H.264/AVC"))
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{
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videoQualityList[videoQualityList.IndexOf(selectedVideoQuality)].SelectedVideoCodec = "H.264/AVC";
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}
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break;
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case VideoCodecs.HEVC:
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if (videoQualityList[videoQualityList.IndexOf(selectedVideoQuality)].VideoCodecList.Contains("H.265/HEVC"))
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{
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videoQualityList[videoQualityList.IndexOf(selectedVideoQuality)].SelectedVideoCodec = "H.265/HEVC";
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}
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break;
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case VideoCodecs.NONE:
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break;
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default:
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break;
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}
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}
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return videoQualityList;
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}
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/// <summary>
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/// 根据输入的字符串判断是AVC还是HEVC
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/// </summary>
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/// <param name="origin"></param>
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/// <returns></returns>
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internal static string GetVideoCodecName(string origin)
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{
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return origin.Contains("avc") ? "H.264/AVC" : origin.Contains("hev") ? "H.265/HEVC" : origin.Contains("dvh") || origin.Contains("hvc") ? "Dolby Vision" : "";
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}
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}
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}
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