cosmetics: indentation and spacing

libavcodec/ac3dec.c

@@ -195,7 +195,7 @@ static av_cold int ac3_decode_init(AVCodecContext *avctx)
     dsputil_init(&s->dsp, avctx);
     av_lfg_init(&s->dith_state, 0);
 
-    /* set bias values for float to int16 conversion */
+    /* set scale value for float to int16 conversion */
     s->mul_bias = 32767.0f;
 
     /* allow downmixing to stereo or mono */

libavcodec/dca.c

@@ -1846,7 +1846,6 @@ static av_cold int dca_decode_init(AVCodecContext * avctx)
         avctx->channels = avctx->request_channels;
     }
 
-
     return 0;
 }