alsa: Set period time.

[paraslash.git] / alsa_write.c

diff --git a/alsa_write.c b/alsa_write.c
index 53854e08c012dd7952df4d94ce50dae987dc004a..e75fa23067380244cd451eedc1c523fae3fb004f 100644 (file)
--- a/alsa_write.c
+++ b/alsa_write.c
@@ -80,6 +80,7 @@ static int alsa_init(struct private_alsa_write_data *pad,
        unsigned buffer_time;
        int ret;
        const char *msg;
+       unsigned period_time;
 
        PARA_INFO_LOG("opening %s\n", conf->device_arg);
        msg = "unable to open pcm";
@@ -124,6 +125,13 @@ static int alsa_init(struct private_alsa_write_data *pad,
                &buffer_time, NULL);
        if (ret < 0)
                goto fail;
+       period_time = buffer_time / 4;
+       msg = "could not set period time";
+       ret = snd_pcm_hw_params_set_period_time_near(pad->handle, hwparams,
+               &period_time, 0);
+       if (ret < 0)
+               goto fail;
+
        msg = "unable to install hw params";
        ret = snd_pcm_hw_params(pad->handle, hwparams);
        if (ret < 0)
@@ -171,15 +179,16 @@ static int alsa_init(struct private_alsa_write_data *pad,
        if (ret == 0) {
                char *buf, *p;
                size_t sz;
-               PARA_INFO_LOG("dumping alsa configuration\n");
+               PARA_DEBUG_LOG("dumping alsa configuration\n");
                snd_pcm_dump(pad->handle, output_log);
+               snd_pcm_hw_params_dump(hwparams, output_log);
                sz = snd_output_buffer_string(output_log, &buf);
                for (p = buf; p < buf + sz;) {
                        char *q = memchr(p, '\n', buf + sz - p);
                        if (!q)
                                break;
                        *q = '\0';
-                       PARA_INFO_LOG("%s\n", p);
+                       PARA_DEBUG_LOG("%s\n", p);
                        p = q + 1;
                }
                snd_output_close(output_log);