From: Abramo Bagnara <abramo@alsa-project.org>
Date: Tue, 3 Oct 2000 12:06:45 +0000 (+0000)
Subject: Avoid call to params_info if only one format is supported
X-Git-Tag: v1.0.3~1112
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=841c8e290950df3dca4d1c54c064c306ea30b4c2;p=alsa-lib.git

Avoid call to params_info if only one format is supported
---

diff --git a/src/pcm/pcm_plug.c b/src/pcm/pcm_plug.c
index 61bc9676..61c418d1 100644
--- a/src/pcm/pcm_plug.c
+++ b/src/pcm/pcm_plug.c
@@ -516,10 +516,13 @@ static int snd_pcm_plug_params(snd_pcm_t *pcm, snd_pcm_params_t *params)
 		slave_format->sfmt = slave_fmt;
 	}
 	slave_info.req_mask |= SND_PCM_PARAMS_SFMT;
-	err = snd_pcm_params_info(slave, &slave_info);
-	assert(err >= 0);
-	if (err < 0)
-		return err;
+
+	if (slave_info.formats != 1U << slave_format->sfmt) {
+		err = snd_pcm_params_info(slave, &slave_info);
+		assert(err >= 0);
+		if (err < 0)
+			return err;
+	}
 
       	if (format->channels < slave_info.min_channels)
 		slave_format->channels = slave_info.min_channels;