From 5c91ee386d57b80593c7178d722a4122e4bf68c6 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Mar 2005 16:34:31 +0000
Subject: [PATCH] Check PCM format aliases

Check PCM format alias strings (e.g. "S16") as acceptable PCM formats.
---
 src/pcm/pcm.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c
index c2fc9547..03ba6413 100644
--- a/src/pcm/pcm.c
+++ b/src/pcm/pcm.c
@@ -1430,6 +1430,18 @@ static const char *snd_pcm_format_names[] = {
 	FORMAT(U18_3BE),
 };
 
+static const char *snd_pcm_format_aliases[SND_PCM_FORMAT_LAST+1] = {
+	FORMAT(S16),
+	FORMAT(U16),
+	FORMAT(S24),
+	FORMAT(U24),
+	FORMAT(S32),
+	FORMAT(U32),
+	FORMAT(FLOAT),
+	FORMAT(FLOAT64),
+	FORMAT(IEC958_SUBFRAME),
+};
+
 static const char *snd_pcm_format_descriptions[] = {
 	FORMATD(S8, "Signed 8 bit"), 
 	FORMATD(U8, "Unsigned 8 bit"),
@@ -1583,6 +1595,10 @@ snd_pcm_format_t snd_pcm_format_value(const char* name)
 		    strcasecmp(name, snd_pcm_format_names[format]) == 0) {
 			return format;
 		}
+		if (snd_pcm_format_aliases[format] &&
+		    strcasecmp(name, snd_pcm_format_aliases[format]) == 0) {
+			return format;
+		}
 	}
 	for (format = 0; format <= SND_PCM_FORMAT_LAST; format++) {
 		if (snd_pcm_format_descriptions[format] &&
-- 
2.47.1