录制相关优化

KulexiuForTeacher/KulexiuForTeacher/Common/Base/KSAccompanyWebViewController.m

@@ -495,7 +495,7 @@
                 [self stopMp3Player]; // 停止播放
             }
             else if ([[parm ks_stringValueForKey:@"api"] isEqualToString:@"startRecording"]) { //  开始录制
-                if (self.videoRecordManager) {
+                if (self->_videoRecordManager) {
                     [self.videoRecordManager clearVideoFile];
                 }
                 [self postMessage:parm];

KulexiuForTeacher/KulexiuForTeacher/Common/Base/KSVideoRecordManager.m

@@ -232,6 +232,7 @@
 
 - (void)startRecord {
     if (_captureMovieFileOutput) {
+        [self clearVideoFile];
         // 开始录制
         [self.captureMovieFileOutput startRecordingToOutputFileURL:[NSURL fileURLWithPath:[self getRecordFilePath]] recordingDelegate:self];
     }