Fix 2 coeffecient typo

libavcodec/h264.h

@@ -496,7 +496,7 @@ typedef struct H264Context {
     GetBitContext *inter_gb_ptr;
 
     const uint8_t *intra_pcm_ptr;
-    DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2]; ///< as a dct coeffecient is int32_t in high depth, we need to reserve twice the space.
+    DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2]; ///< as a dct coefficient is int32_t in high depth, we need to reserve twice the space.
     DECLARE_ALIGNED(16, int16_t, mb_luma_dc)[3][16 * 2];
     int16_t mb_padding[256 * 2];        ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too large or ensure that there is some unused stuff after mb
 

libavcodec/vp3.c

@@ -1032,7 +1032,7 @@ static int unpack_vlcs(Vp3DecodeContext *s, GetBitContext *gb,
     if (blocks_ended > s->num_coded_frags[plane][coeff_index])
         av_log(s->avctx, AV_LOG_ERROR, "More blocks ended than coded!\n");
 
-    // decrement the number of blocks that have higher coeffecients for each
+    // decrement the number of blocks that have higher coefficients for each
     // EOB run at this level
     if (blocks_ended)
         for (i = coeff_index + 1; i < 64; i++)