fixing inaccurate frame_rate

Originally committed as revision 1616 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/avcodec.h

@@ -169,7 +169,7 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
 #define CODEC_CAP_PARSE_ONLY      0x0004
 #define CODEC_CAP_TRUNCATED       0x0008
 
-#define FRAME_RATE_BASE 10000
+#define FRAME_RATE_BASE 10010
 
 #define FF_COMMON_FRAME \
     uint8_t *data[4];\

libavcodec/mpeg12data.h

@@ -386,14 +386,14 @@ static const uint8_t mbMotionVectorTable[17][2] = {
 
 static const int frame_rate_tab[9] = {
     0, 
-    (int)(23.976 * FRAME_RATE_BASE), 
-    (int)(24 * FRAME_RATE_BASE), 
-    (int)(25 * FRAME_RATE_BASE), 
-    (int)(29.97 * FRAME_RATE_BASE), 
-    (int)(30 * FRAME_RATE_BASE), 
-    (int)(50 * FRAME_RATE_BASE), 
-    (int)(59.94 * FRAME_RATE_BASE), 
-    (int)(60 * FRAME_RATE_BASE), 
+    24000 * FRAME_RATE_BASE / 1001,
+    24000 * FRAME_RATE_BASE / 1000,
+    25000 * FRAME_RATE_BASE / 1000,
+    30000 * FRAME_RATE_BASE / 1001,
+    30000 * FRAME_RATE_BASE / 1000,
+    50000 * FRAME_RATE_BASE / 1000,
+    60000 * FRAME_RATE_BASE / 1001,
+    60000 * FRAME_RATE_BASE / 1000,
 };
 
 static const uint8_t non_linear_qscale[32] = {