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-rw-r--r--src/modules/module-alsa-source.c58
1 files changed, 29 insertions, 29 deletions
diff --git a/src/modules/module-alsa-source.c b/src/modules/module-alsa-source.c
index aa0666f1..596998d1 100644
--- a/src/modules/module-alsa-source.c
+++ b/src/modules/module-alsa-source.c
@@ -2,17 +2,17 @@
/***
This file is part of PulseAudio.
-
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
@@ -96,13 +96,13 @@ static void update_usage(struct userdata *u) {
static void clear_up(struct userdata *u) {
assert(u);
-
+
if (u->source) {
pa_source_disconnect(u->source);
pa_source_unref(u->source);
u->source = NULL;
}
-
+
if (u->pcm_fdl)
pa_alsa_fdlist_free(u->pcm_fdl);
if (u->mixer_fdl)
@@ -114,7 +114,7 @@ static void clear_up(struct userdata *u) {
snd_mixer_close(u->mixer_handle);
u->mixer_handle = NULL;
}
-
+
if (u->pcm_handle) {
snd_pcm_drop(u->pcm_handle);
snd_pcm_close(u->pcm_handle);
@@ -127,7 +127,7 @@ static int xrun_recovery(struct userdata *u) {
assert(u);
pa_log_info("*** ALSA-XRUN (capture) ***");
-
+
if ((ret = snd_pcm_prepare(u->pcm_handle)) < 0) {
pa_log("snd_pcm_prepare() failed: %s", snd_strerror(-ret));
@@ -144,17 +144,17 @@ static void do_read(struct userdata *u) {
assert(u);
update_usage(u);
-
+
for (;;) {
pa_memchunk post_memchunk;
snd_pcm_sframes_t frames;
size_t l;
-
+
if (!u->memchunk.memblock) {
u->memchunk.memblock = pa_memblock_new(u->source->core->mempool, u->memchunk.length = u->fragment_size);
u->memchunk.index = 0;
}
-
+
assert(u->memchunk.memblock);
assert(u->memchunk.length);
assert(u->memchunk.memblock->data);
@@ -164,11 +164,11 @@ static void do_read(struct userdata *u) {
if ((frames = snd_pcm_readi(u->pcm_handle, (uint8_t*) u->memchunk.memblock->data + u->memchunk.index, u->memchunk.length / u->frame_size)) < 0) {
if (frames == -EAGAIN)
return;
-
+
if (frames == -EPIPE) {
if (xrun_recovery(u) < 0)
return;
-
+
continue;
}
@@ -180,7 +180,7 @@ static void do_read(struct userdata *u) {
}
l = frames * u->frame_size;
-
+
post_memchunk = u->memchunk;
post_memchunk.length = l;
@@ -188,13 +188,13 @@ static void do_read(struct userdata *u) {
u->memchunk.index += l;
u->memchunk.length -= l;
-
+
if (u->memchunk.length == 0) {
pa_memblock_unref(u->memchunk.memblock);
u->memchunk.memblock = NULL;
u->memchunk.index = u->memchunk.length = 0;
}
-
+
break;
}
}
@@ -223,7 +223,7 @@ static int mixer_callback(snd_mixer_elem_t *elem, unsigned int mask) {
u->source->get_hw_volume(u->source);
if (u->source->get_hw_mute)
u->source->get_hw_mute(u->source);
-
+
pa_subscription_post(u->source->core,
PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE,
u->source->index);
@@ -256,14 +256,14 @@ static int source_get_hw_volume_cb(pa_source *s) {
for (i = 0;i < s->hw_volume.channels;i++) {
long set_vol;
-
+
assert(snd_mixer_selem_has_capture_channel(u->mixer_elem, i));
-
+
if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, i, &vol)) < 0)
goto fail;
set_vol = (long) roundf(((float) s->hw_volume.values[i] * (u->hw_volume_max - u->hw_volume_min)) / PA_VOLUME_NORM) + u->hw_volume_min;
-
+
/* Try to avoid superfluous volume changes */
if (set_vol != vol)
s->hw_volume.values[i] = (pa_volume_t) roundf(((float) (vol - u->hw_volume_min) * PA_VOLUME_NORM) / (u->hw_volume_max - u->hw_volume_min));
@@ -361,7 +361,7 @@ int pa__init(pa_core *c, pa_module*m) {
const char *name;
char *name_buf = NULL;
int namereg_fail;
-
+
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments");
goto fail;
@@ -378,17 +378,17 @@ int pa__init(pa_core *c, pa_module*m) {
/* Fix latency to 100ms */
periods = 12;
fragsize = pa_bytes_per_second(&ss)/128;
-
+
if (pa_modargs_get_value_u32(ma, "fragments", &periods) < 0 || pa_modargs_get_value_u32(ma, "fragment_size", &fragsize) < 0) {
pa_log("failed to parse buffer metrics");
goto fail;
}
period_size = fragsize/frame_size;
-
+
u = pa_xnew0(struct userdata, 1);
m->userdata = u;
u->module = m;
-
+
snd_config_update_free_global();
if ((err = snd_pcm_open(&u->pcm_handle, dev = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK)) < 0) {
pa_log("Error opening PCM device %s: %s", dev, snd_strerror(err));
@@ -427,7 +427,7 @@ int pa__init(pa_core *c, pa_module*m) {
name = name_buf = pa_sprintf_malloc("alsa_input.%s", dev);
namereg_fail = 0;
}
-
+
if (!(u->source = pa_source_new(c, __FILE__, name, namereg_fail, &ss, &map))) {
pa_log("Failed to create source object");
goto fail;
@@ -490,7 +490,7 @@ int pa__init(pa_core *c, pa_module*m) {
u->memchunk.index = u->memchunk.length = 0;
snd_pcm_start(u->pcm_handle);
-
+
ret = 0;
/* Get initial mixer settings */
@@ -507,11 +507,11 @@ finish:
if (pcm_info)
snd_pcm_info_free(pcm_info);
-
+
return ret;
fail:
-
+
if (u)
pa__done(c, m);
@@ -526,10 +526,10 @@ void pa__done(pa_core *c, pa_module*m) {
return;
clear_up(u);
-
+
if (u->memchunk.memblock)
pa_memblock_unref(u->memchunk.memblock);
-
+
pa_xfree(u);
}
generated by cgit (git 2.34.1) at 2024-04-25 19:03:29 +0000