Android->media:get best framerate and set video record

frameworks/av/media/libstagefright/CameraSource.cpp

@@ -525,6 +525,59 @@ status_t CameraSource::init(
     return err;
 }
 
+int split(char dst[][4], char* str, const char* spl)
+{
+    int n = 0;
+    char *result = NULL;
+    char src[70];
+    strcpy(src,str);
+    result = strtok(src, spl);
+    
+    while( result != NULL )
+    {
+        strcpy(dst[n++], result);
+        result = strtok(NULL, spl);
+    }
+    
+    return n;
+}
+
+int getValueMax(int arry[],int n)
+{
+    int max = arry[0];
+    int i = 0;
+    for(i ; i < n ; i++)
+    {
+        if(max < arry[i]) 
+            max = arry[i];
+    }
+
+    return max;
+}
+
+int getBestFrameRate(char *str)
+{
+    int num = 0;
+    int value[10];
+    char dst[10][4];
+    int i = 0;
+    num = split(dst,str,",");
+    
+    for(i ; i<num ; i++)
+    {
+        value[i] = atoi(dst[i]);
+    }
+
+    if(num == 1)
+    {
+        return value[0];
+    }
+    else
+    {
+        return getValueMax(value,num);
+    }
+}
+
 status_t CameraSource::initWithCameraAccess(
         const sp<ICamera>& camera,
         const sp<ICameraRecordingProxy>& proxy,
@@ -536,8 +589,7 @@ status_t CameraSource::initWithCameraAccess(
         bool storeMetaDataInVideoBuffers) {
     ALOGV("initWithCameraAccess");
     status_t err = OK;
-    
-    frameRate = 30;
+
 
     if ((err = isCameraAvailable(camera, proxy, cameraId,
             clientName, clientUid)) != OK) {
@@ -549,6 +601,18 @@ status_t CameraSource::initWithCameraAccess(
         return err;
     }
 
+    const char* supportedFrameRates1 =
+                params.get(CameraParameters::KEY_SUPPORTED_PREVIEW_FRAME_RATES);
+
+    if(supportedFrameRates1 != NULL)
+    {
+        frameRate = getBestFrameRate((char *)supportedFrameRates1);
+    }
+    else
+    {
+        frameRate = 30;
+    }
+    ALOGD("frameRate:%d\n",frameRate);
     // Set the camera to use the requested video frame size
     // and/or frame rate.
     if ((err = configureCamera(&params,