summaryrefslogtreecommitdiffstats
path: root/sound/core/oss/mulaw.c
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2006-01-13 12:09:12 +0100
committerJaroslav Kysela <perex@suse.cz>2006-03-22 10:23:20 +0100
commit0534ab4279bd25e2d0a888af07466446dac05d74 (patch)
treec5e6f6398101e9b278db7d7749f93035d6e1fae6 /sound/core/oss/mulaw.c
parent9d83911ac082c6d63c1c08f235349113d8c1d0a3 (diff)
downloadlinux-0534ab4279bd25e2d0a888af07466446dac05d74.tar.bz2
[ALSA] Clean up pcm-oss plugins
Modules: ALSA<-OSS emulation Clean up pcm-oss plugin codes. Removed dead codes, and simplified route/rate plugins. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/oss/mulaw.c')
-rw-r--r--sound/core/oss/mulaw.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/sound/core/oss/mulaw.c b/sound/core/oss/mulaw.c
index ed12c81fcf1b..2eb18807e6d0 100644
--- a/sound/core/oss/mulaw.c
+++ b/sound/core/oss/mulaw.c
@@ -265,6 +265,25 @@ static snd_pcm_sframes_t mulaw_transfer(struct snd_pcm_plugin *plugin,
return frames;
}
+static int getput_index(int format)
+{
+ int sign, width, endian;
+ sign = !snd_pcm_format_signed(format);
+ width = snd_pcm_format_width(format) / 8 - 1;
+ if (width < 0 || width > 3) {
+ snd_printk(KERN_ERR "snd-pcm-oss: invalid format %d\n", format);
+ width = 0;
+ }
+#ifdef SNDRV_LITTLE_ENDIAN
+ endian = snd_pcm_format_big_endian(format);
+#else
+ endian = snd_pcm_format_little_endian(format);
+#endif
+ if (endian < 0)
+ endian = 0;
+ return width * 4 + endian * 2 + sign;
+}
+
int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
struct snd_pcm_plugin_format *src_format,
struct snd_pcm_plugin_format *dst_format,