4726107e19
- 集成 ffmpeg-kit-full-gpl 6.0.3(arm64),用 libx264 重编码修复 .h264 缺 SPS/PPS 导致的播放卡死 - 新增 VideoDownloadPlayService/VideoCacheManager,.mp4 直下直播、.h264 下载后转 mp4 缓存,转码完成后删除临时 .h264 - FFmpegKitBridge 走主线程 JNI 调用规避 IL2CPP 后台线程 FindClass 不稳定 - 视频列表按缓存状态显示 下载/播放 按钮,下载中亮色条显示百分比;播放面板原下载按钮改为保存到相册
65 lines
2.0 KiB
C#
65 lines
2.0 KiB
C#
using System;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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using UnityEngine;
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namespace Kill.Video
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{
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/// <summary>
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/// 视频缓存管理:按 url 哈希缓存到 persistentDataPath/video_cache
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/// key=mp4(转码后),key=tmp.h264(下载中临时)
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/// </summary>
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public static class VideoCacheManager
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{
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private const string CacheSubDir = "video_cache";
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private static string CacheDir
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{
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get
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{
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string dir = Path.Combine(Application.persistentDataPath, CacheSubDir);
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if (!Directory.Exists(dir)) Directory.CreateDirectory(dir);
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return dir;
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}
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}
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/// <summary>已转码好的 mp4 缓存路径</summary>
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public static string GetCachedMp4Path(string url)
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{
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return Path.Combine(CacheDir, Hash(url) + ".mp4");
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}
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/// <summary>下载中的 .h264 临时路径</summary>
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public static string GetTempH264Path(string url)
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{
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return Path.Combine(CacheDir, Hash(url) + ".h264");
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}
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public static bool IsCached(string url)
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{
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var p = GetCachedMp4Path(url);
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return File.Exists(p) && new FileInfo(p).Length > 0;
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}
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public static void Clear()
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{
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string dir = Path.Combine(Application.persistentDataPath, CacheSubDir);
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if (Directory.Exists(dir))
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{
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try { Directory.Delete(dir, true); }
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catch (Exception e) { Debug.LogWarning("[VideoCacheManager] clear fail: " + e.Message); }
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}
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}
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private static string Hash(string s)
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{
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using var sha = SHA1.Create();
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var bytes = sha.ComputeHash(Encoding.UTF8.GetBytes(s));
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var sb = new StringBuilder(bytes.Length * 2);
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foreach (var b in bytes) sb.Append(b.ToString("x2"));
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return sb.ToString();
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}
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}
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}
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