vbox的更動 50314 路徑 trunk/src/VBox/Main/src-client/VideoRec.cpp

時間撮記:

2014-2-3 下午07:29:26 (11 年 以前)

作者:

vboxsync

訊息:

crOpenGL/VideoRec: do hardweight screen capthure only when recorder is ready

檔案:

• trunk/src/VBox/Main/src-client/VideoRec.cpp (修改) (1 筆差異)

trunk/src/VBox/Main/src-client/VideoRec.cpp

@@ -603 +603 @@
 
 /**
+ * VideoRec utility function to check if recording engine is ready to accept a new frame
+ * for the given screen.
+ *
+ * @returns true if recording engine is ready
+ * @param   pCtx   Pointer to video recording context.
+ * @param   uScreen screen id.
+ * @param   u64TimeStamp current time stamp
+ */
+bool VideoRecIsReady(PVIDEORECCONTEXT pCtx, uint32_t uScreen, uint64_t u64TimeStamp)
+{
+    uint32_t enmState = ASMAtomicReadU32(&g_enmState);
+    if (enmState != VIDREC_IDLE)
+        return false;
+
+    PVIDEORECSTREAM pStrm = &pCtx->Strm[uScreen];
+    if (!pStrm->fEnabled)
+        return false;
+
+    if (u64TimeStamp < pStrm->u64LastTimeStamp + pStrm->uDelay)
+        return false;
+
+    if (ASMAtomicReadBool(&pStrm->fRgbFilled))
+        return false;
+
+    return true;
+}
+
+/**
  * VideoRec utility function to encode the source image and write the encoded
  * image to target file.