misc spelling/wording fixes

Originally committed as revision 14539 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavutil/random.c

@@ -41,7 +41,7 @@ void av_init_random(unsigned int seed, AVRandomState *state)
     int index;
 
     /*
-     This differs from the wikipedia article.  Source is from the Makoto
+     This differs from the wikipedia article.  Source is from the
      Makoto Matsumoto and Takuji Nishimura code, with the following comment:
      */
      /* See Knuth TAOCP Vol2. 3rd Ed. P.106 for multiplier. */

libavutil/random.h

@@ -28,17 +28,17 @@
 
 typedef struct {
     unsigned int mt[AV_RANDOM_N]; ///< the array for the state vector
-    int index; ///< current untempered value we use as the base.
+    int index; ///< Current untempered value we use as the base.
 } AVRandomState;
 
 
-void av_init_random(unsigned int seed, AVRandomState *state); ///< to be inlined, the struct must be visible, so it doesn't make sense to try and keep it opaque with malloc/free like calls
-void av_random_generate_untempered_numbers(AVRandomState *state); ///< Regenerate the untempered numbers (must be done every 624 iterations, or it will loop)
+void av_init_random(unsigned int seed, AVRandomState *state); ///< To be inlined, the struct must be visible. So it does not make sense to try and keep it opaque with malloc/free-like calls.
+void av_random_generate_untempered_numbers(AVRandomState *state); ///< Regenerate the untempered numbers (must be done every 624 iterations, or it will loop).
 
 /**
- * generates a random number on [0,0xffffffff]-interval
+ * Generates a random number from the interval [0,0xffffffff].
  *
- * Please do NOT use the mersenne twister, it is slow, use the random generator
+ * Please do NOT use the Mersenne Twister, it is slow. Use the random generator
  * from lfg.c/h or a simple LCG like state= state*1664525+1013904223.
  * If you still choose to use MT, expect that you will have to provide
  * some evidence that it makes a difference for the case where you use it.
@@ -47,14 +47,14 @@ static inline unsigned int av_random(AVRandomState *state)
 {
     unsigned int y;
 
-    // regenerate the untempered numbers if we should...
+    // Regenerate the untempered numbers if we should...
     if (state->index >= AV_RANDOM_N)
         av_random_generate_untempered_numbers(state);
 
-    // grab one...
+    // Grab one...
     y = state->mt[state->index++];
 
-    /* Now temper (Mersenne Twister coefficients) The coefficients for MT19937 are.. */
+    /* Now temper (Mersenne Twister coefficients). The coefficients for MT19937 are.. */
     y ^= (y >> 11);
     y ^= (y << 7) & 0x9d2c5680;
     y ^= (y << 15) & 0xefc60000;
@@ -63,7 +63,7 @@ static inline unsigned int av_random(AVRandomState *state)
     return y;
 }
 
-/** return random in range [0-1] as double */
+/** Return random in range [0-1] as double. */
 static inline double av_random_real1(AVRandomState *state)
 {
     /* divided by 2^32-1 */