audio_format: add constant MAX_CHANNELS

To be used in fixed-size arrays.

audio_format: add constant MAX_CHANNELS
f77cd632 · Max Kellermann · 2378c2d7 · f77cd632
Commit f77cd632 authored Oct 04, 2011 by Max Kellermann
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audio_format.h src/audio_format.h +3 -1

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--- a/src/audio_format.h
+++ b/src/audio_format.h
@@ -44,6 +44,8 @@ enum sample_format {
 	SAMPLE_FORMAT_S32,
 };

+static const unsigned MAX_CHANNELS = 8;
+
 /**
 * This structure describes the format of a raw PCM stream.
 */
@@ -180,7 +182,7 @@ audio_valid_sample_format(enum sample_format format)
 static inline bool
 audio_valid_channel_count(unsigned channels)
 {
-	return channels >= 1 && channels <= 8;
+	return channels >= 1 && channels <= MAX_CHANNELS;
 }

 /**