pcm_utils: support any number of channels in pcm_sizeOfConvBuffer()

When calculating the conversion buffer size, don't hard-code the formulas for only mono<->stereo.

pcm_utils: support any number of channels in pcm_sizeOfConvBuffer()
9b0693d8 · Max Kellermann · c0ecce54 · 9b0693d8
Commit 9b0693d8 authored Oct 12, 2008 by Max Kellermann
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Showing with 2 additions and 11 deletions

pcm_utils.c src/pcm_utils.c +2 -11

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--- a/src/pcm_utils.c
+++ b/src/pcm_utils.c
@@ -568,17 +568,8 @@ size_t pcm_sizeOfConvBuffer(const struct audio_format *inFormat, size_t inSize,
 	}

 	if (inFormat->channels != outFormat->channels) {
-		switch (inFormat->channels) {
-		case 1:
-			outSize = (outSize >> 1) << 2;
-			break;
-		case 2:
-			outSize >>= 1;
-			break;
-		default:
-			FATAL("only 1 or 2 channels are supported "
-			      "for conversion!\n");
-		}
+		outSize /= inFormat->channels;
+		outSize *= outFormat->channels;
 	}

 	outSize /= shift;