视频会议

frontend/src/pages/cloud-law/video-call.vue

@@ -326,7 +326,7 @@ const debugLines = ref([])
 const pushDebug = (msg) => {
   try {
     const line = `[${new Date().toLocaleTimeString()}] ${msg}`
-    debugLines.value = [...debugLines.value.slice(-9), line]
+    debugLines.value = [...debugLines.value.slice(-29), line]
     console.log('[CloudLawVideoCall][DEBUG]', line)
   } catch (e) { /* ignore */ }
 }
@@ -392,9 +392,10 @@ const prepareLocalMediaTracks = async (startWithVideo) => {
   }
   // #ifdef H5
   if (typeof navigator === 'undefined' || !navigator.mediaDevices || !navigator.mediaDevices.getUserMedia) {
-    console.warn('[CloudLawVideoCall] navigator.mediaDevices 不可用，跳过预申请')
+    pushDebug('prepare: navigator.mediaDevices 不可用')
     return prefs
   }
+  pushDebug(`prepare -> getUserMedia(audio:true, video:${startWithVideo})`)
   try {
     const constraints = {
       audio: true,
@@ -405,6 +406,7 @@ const prepareLocalMediaTracks = async (startWithVideo) => {
     const stream = await navigator.mediaDevices.getUserMedia(constraints)
     prefs.audioTrack = stream.getAudioTracks()[0] || null
     prefs.videoTrack = stream.getVideoTracks()[0] || null
+    pushDebug(`prepare 成功 audio=${!!prefs.audioTrack} video=${!!prefs.videoTrack}`)
     // 如果用户拒了视频，stream 里不会有 video track，自动降级为不开摄像头
     if (startWithVideo && !prefs.videoTrack) {
       prefs.startVideo = false
@@ -413,7 +415,7 @@ const prepareLocalMediaTracks = async (startWithVideo) => {
       prefs.startAudio = false
     }
   } catch (err) {
-    console.error('[CloudLawVideoCall] prepare media failed', err)
+    pushDebug(`prepare 失败: ${err?.name || ''} ${err?.message || err}`)
     localMediaError.value = `预申请音视频失败：${err?.name || ''} ${err?.message || err}`
     // 拿不到也继续走 joinAndEnter，让后端协议建好；用户可以在入会后手动点麦/摄像头按钮重试
     prefs.startAudio = false