diff --git a/play.lua b/play.lua
index cb26d59..6d2efd1 100644
--- a/play.lua
+++ b/play.lua
@@ -1,15 +1,23 @@
 -- 简化版视频播放器
 local gpu = peripheral.wrap("tm_gpu_0")
+if not gpu then gpu = peripheral.find("tm_gpu") end
 gpu.refreshSize()
 gpu.setSize(64)
 local w, h = gpu.getSize()
+local mypath = "/"..fs.getDir(shell.getRunningProgram())
+if not fs.exists(mypath.."/speakerlib.lua") then shell.run("wget https://git.liulikeji.cn/xingluo/computer_craft_video_play/raw/branch/main/speakerlib.lua") end
 
-if not fs.exists("speakerlib.lua") then shell.run("wget https://git.liulikeji.cn/xingluo/computer_craft_video_play/raw/branch/main/speakerlib.lua") end
-
-server_url = "https://newgmapi.liulikeji.cn"
+local server_url = "https://newgmapi.liulikeji.cn"
 
 -- 检查命令行参数
-local videoUrl = ...
+local age = {...}
+local videoUrl = age[1]
+local debug
+
+if age[2] == "debug" then
+    debug = true
+end
+
 if not videoUrl then
     print("Usage: video_player <video URL>")
     print("Example: video_player https://example.com/video.mp4")
@@ -105,7 +113,7 @@ while true do
 
     -- 检查是否完成
     if task_info.result.current_frames then
-        if task_info.result.current_frames >= 200  then
+        if task_info.result.current_frames >= 400  then
             break
         end
     end
@@ -180,7 +188,7 @@ end
 -- 分批下载（每批 50 帧）
 local BATCH_SIZE = 20
 -- local totalFrames = #videoInfo.frame_urls
-local totalFrames = videoInfo.fps * 10  -- 仅下载前10秒以节省时间
+local totalFrames = videoInfo.fps * 20  -- 仅下载前10秒以节省时间
 local allFrameData = {}
 
 -- 第一步：构建所有需要下载的批次（仅前10秒）
@@ -251,8 +259,6 @@ local starttime1 = os.clock()
 
 -- 播放前已缓存 10 秒
 local totalFramesToPlay = #videoInfo.frame_urls
-local maxCachedFrames = math.min(videoInfo.fps * 20, totalFramesToPlay)  -- 最多缓存 20 秒
-local nextDownloadIndex = math.min(videoInfo.fps * 10 + 1, totalFramesToPlay + 1)  -- 从第 10 秒后开始继续下载
 
 -- 标志：是否还在播放
 local running = true
@@ -373,97 +379,199 @@ local function httpResponseHandler()
     end
 end
 
+
+-- === 全程性能记录表 (新增) ===
+-- 结构: { {id=帧号, time=耗时秒}, ... }
+local perf_log = {} 
+
 -- 视频渲染协程
 local function renderVideo()
-    local frameIndex2 = 0
-    local play_fps = videoInfo.fps
+    -- 基础参数初始化
+    local fps = videoInfo.fps
+    local frameDelay = 1 / fps
+    local startTime = os.clock()
+    
+    os.queueEvent("audio_start") -- 通知音频开始播放
+
+    -- === 性能统计变量 ===
+    local lastStatTime = os.clock() -- 上次结算时间
+    local frameCount = 0            -- 当前秒内已渲染帧数
+    local timeAccum = 0             -- 当前秒内累计渲染耗时
+    local maxFrameTime = 0          -- 当前秒内最大单帧耗时 (用于计算最低FPS)
+
+    -- === UI显示缓存 ===
+    local ui_avgFps, ui_avgMs = 0, 0
+    local ui_lowFps, ui_lowMs = 0, 0
+
+    local timer_id -- 声明计时器ID变量
 
-    local starttime = os.clock()
-    os.queueEvent("audio_start")
     while running and frameIndex <= #videoInfo.frame_urls do
+        local frameStart = frameEnd
 
-        
-        local frame_start_time = os.clock()
-
-        local data = allFrameData[frameIndex]
-        local imgBin = {}
-        for j = 1, #data do
-            imgBin[#imgBin + 1] = data:byte(j)
-        end
-        
-        for i = 1, frameIndex - 5 do
+        -- 1. 内存清理
+        for i = 1, math.max(0, frameIndex - 5) do
             allFrameData[i] = nil
         end
 
-        data = nil
-        local success, image = pcall(function()
-            return gpu.decodeImage(table.unpack(imgBin))
-        end)
-
-        --local image = frames[frameIndex]
-
+        local data = allFrameData[frameIndex]
         
-        -- 播放当前帧
-        if image then
+        -- === 如果 data 存在才进行解码和渲染 ===
+        if data then
+            -- 将字符串转换为字节表
+            local imgBin = { data:byte(1, #data) }
+            data = nil 
 
+            -- 2. 图像解码
+            local success, image = pcall(function()
+                return gpu.decodeImage(table.unpack(imgBin))
+            end)
 
-            gpu.drawImage(0, 0, image.ref())
-            --gpu.drawText(1,1,frameIndex .. " / "..#videoInfo.frame_urls.." fps: "..math.ceil(play_fps),0xffffff)
-            gpu.drawText(1,1,frameIndex .. " / "..#videoInfo.frame_urls.." fps: "..math.ceil(play_fps),0xffffff)
-            local event, id
-            if frameIndex > 1 then
+            if success and image then
+                -- 3. 画面渲染
+                gpu.drawImage(0, 0, image.ref())
+
+                if debug then
+                    -- 格式：帧进度 | 平均FPS(平均耗时) | 最低FPS(波峰耗时)
+                    local statusText = string.format("%d/%d Avg:%d(%dms) Low:%d(%dms)",
+                        frameIndex,
+                        #videoInfo.frame_urls,
+                        math.floor(ui_avgFps), 
+                        math.floor(ui_avgMs),
+                        math.floor(ui_lowFps), 
+                        math.floor(ui_lowMs)
+                    )
+                    gpu.drawText(1, 1, statusText, 0xFFFFFF)
+                end
+
+                -- 这里的 Timer 逻辑移出去了，确保跳帧时也能同步
+
+                if frameIndex > 1 and timer_id then
+                    repeat
+                        local event, id = os.pullEvent("timer")
+                    until id == timer_id
+                end
+        
+                timer_id = os.startTimer(frameDelay)
+
+                gpu.sync()
+                image:free()
+                -- === 修改点：只有成功渲染并同步后，才更新 frameEnd ===
+                frameEnd = os.clock()
+            else
+                print("Decode failed frame " .. frameIndex)
+            end
+        else
+            if frameIndex > 1 and timer_id then
                 repeat
-                    event, id = os.pullEvent("timer")
+                    local event, id = os.pullEvent("timer")
                 until id == timer_id
             end
-
+    
             timer_id = os.startTimer(frameDelay)
-
-            gpu.sync()
-
-            -- for i = 1, frameIndex - 4 do
-            --     local image = frames[i]
-            --     image:free()
-            -- end
-            image:free()
-        else
-            error(frameIndex.. "Frame does not exist, possibly due to full memory or insufficient performance")
+            -- === 修改点：数据为空时，不做任何操作，直接进入下方的同步逻辑 ===
+            -- 此时 frameEnd 依然等于 frameStart，计算出的 costTime 为 0
         end
 
+        if frameEnd and frameStart then
+            -- 5. 性能数据计算
+            local costTime = frameEnd - frameStart -- 如果跳帧，这里是 0 秒
+
+            -- 记录当前帧的统计信息到总表中
+            table.insert(perf_log, { f = frameIndex, t = costTime })
+
+            if debug then
+                -- 实时统计累加
+                frameCount = frameCount + 1
+                timeAccum = timeAccum + costTime
+                if costTime > maxFrameTime then maxFrameTime = costTime end
+
+                -- 每隔 1秒 更新一次UI显示的数值
+                -- 注意：如果大量跳帧，timeDiff 可能会包含很多等待时间，这里的逻辑保持原样即可
+                local statEndCheck = os.clock() 
+                local timeDiff = statEndCheck - lastStatTime
+                if timeDiff >= 1.0 then
+                    ui_avgFps = frameCount / timeDiff
+                    ui_avgMs  = (timeAccum / frameCount) * 1000
+                    
+                    ui_lowFps = (maxFrameTime > 0) and (1 / maxFrameTime) or ui_avgFps
+                    ui_lowMs  = maxFrameTime * 1000
+
+                    -- 重置计数器
+                    lastStatTime = statEndCheck
+                    frameCount = 0
+                    timeAccum = 0
+                    maxFrameTime = 0
+                end
+            end
+        end
+
+        -- 6. 自动追帧逻辑
+        local playTime = os.clock() - startTime
+        local targetFrame = math.ceil(playTime / frameDelay)
         
-        
-        local frame_end_time = os.clock()
-
-        local frame_time = frame_end_time - frame_start_time
-
-        play_fps = 1 / frame_time
-
-        local play_time = tonumber(string.format("%.3f",os.clock() - starttime))
-
-        frameIndex2 = math.ceil(play_time / frameDelay)
-        
-        if frameIndex2 + (frameIndex - frameIndex2) * 0.5 >= 4 then 
-            frameIndex = frameIndex2
+        -- 如果当前帧和理论帧 相差3 则跳帧
+        if targetFrame > frameIndex + 3 or  targetFrame < frameIndex - 2  then 
+            frameIndex = targetFrame
         else
             frameIndex = frameIndex+1
         end
-        
-
     end
 end
 
-
-
-
 -- 启动协程
 -- 启动三个协程：渲染 + 缓存调度 + HTTP 响应处理
 parallel.waitForAny(renderVideo, cacheAhead, httpResponseHandler)
+
+
 local endtime = os.clock()
-local time = endtime-starttime1
+local total_time_sec = endtime - starttime1
+
+-- 格式化总播放时间为 HH:MM:SS
+local function format_seconds_to_hms(seconds)
+    local h = math.floor(seconds / 3600)
+    local m = math.floor((seconds % 3600) / 60)
+    local s = math.floor(seconds % 60)
+    return string.format("%02d:%02d:%02d", h, m, s)
+end
 
 print("Playback finished")
-print("Play_Time: ".. time)
-local fps = #videoInfo.frame_urls / time
-print("Final_FPS: "..fps)
+print("Play_Time: " .. format_seconds_to_hms(total_time_sec))
 
-print("Average Frame Interval: "..1/fps)
\ No newline at end of file
+if #perf_log == 0 then
+    print("No performance data recorded.")
+else
+    local total_frame_time = 0
+    local max_frame_time = 0
+
+    for _, entry in ipairs(perf_log) do
+        local t = entry.t
+
+        total_frame_time = total_frame_time + t
+        if t > max_frame_time then
+            max_frame_time = t
+        end
+    end
+
+    local avg_frame_time = total_frame_time / #perf_log  -- 单位：秒
+    local avg_fps = 1 / avg_frame_time
+    local min_fps = max_frame_time > 0 and (1 / max_frame_time) or 0
+
+    -- 转换为整数 FPS 和毫秒
+    local avg_fps_int = math.floor(avg_fps)
+    local min_fps_int = math.floor(min_fps)
+    local avg_ms = math.floor(avg_frame_time * 1000)
+    local max_ms = math.floor(max_frame_time * 1000)
+
+    print(string.format("Avg_FPS: %d (%dms)", avg_fps_int, avg_ms))
+    print(string.format("Low_FPS: %d (%dms)", min_fps_int, max_ms))
+
+    print("The ID for playing the video is "..task_id)
+    print("You can use the following command to replay this video within an hour.")
+    print('" play '..task_id..' "')
+
+    if debug then
+        local perf_log_file = fs.open(mypath.."/perf_log.json","w")
+        perf_log_file.write(textutils.serialiseJSON(perf_log))
+        print("perf_log has been saved to "..mypath.."/perf_log.json")
+    end
+end
\ No newline at end of file