X-Git-Url: https://code.delx.au/pulseaudio/blobdiff_plain/46091a9237f17f4295dca7140d8d70b4fce8b357..fa499dad06ba6558111cdef64c18f2401e803cff:/polyp/module-alsa-source.c

diff --git a/polyp/module-alsa-source.c b/polyp/module-alsa-source.c
index 8207d462..ba09d319 100644
--- a/polyp/module-alsa-source.c
+++ b/polyp/module-alsa-source.c
@@ -4,7 +4,7 @@
   This file is part of polypaudio.
  
   polypaudio is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published
+  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.
  
@@ -13,7 +13,7 @@
   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 General Public License
+  You should have received a copy of the GNU Lesser General Public License
   along with polypaudio; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
   USA.
@@ -38,12 +38,19 @@
 #include "sample-util.h"
 #include "alsa-util.h"
 #include "xmalloc.h"
+#include "log.h"
+#include "module-alsa-source-symdef.h"
+
+PA_MODULE_AUTHOR("Lennart Poettering")
+PA_MODULE_DESCRIPTION("ALSA Source")
+PA_MODULE_VERSION(PACKAGE_VERSION)
+PA_MODULE_USAGE("source_name=<name for the source> device=<ALSA device> format=<sample format> channels=<number of channels> rate=<sample rate> fragments=<number of fragments> fragment_size=<fragment size>")
 
 struct userdata {
     snd_pcm_t *pcm_handle;
     struct pa_source *source;
-    void **io_sources;
-    unsigned n_io_sources;
+    struct pa_io_event **io_events;
+    unsigned n_io_events;
 
     size_t frame_size, fragment_size;
     struct pa_memchunk memchunk;
@@ -53,9 +60,9 @@ struct userdata {
 static const char* const valid_modargs[] = {
     "device",
     "source_name",
-    "format",
     "channels",
     "rate",
+    "format",
     "fragments",
     "fragment_size",
     NULL
@@ -72,10 +79,10 @@ static void update_usage(struct userdata *u) {
 static void xrun_recovery(struct userdata *u) {
     assert(u);
 
-    fprintf(stderr, "*** ALSA-XRUN (capture) ***\n");
+    pa_log(__FILE__": *** ALSA-XRUN (capture) ***\n");
     
     if (snd_pcm_prepare(u->pcm_handle) < 0)
-        fprintf(stderr, "snd_pcm_prepare() failed\n");
+        pa_log(__FILE__": snd_pcm_prepare() failed\n");
 }
 
 static void do_read(struct userdata *u) {
@@ -89,13 +96,13 @@ static void do_read(struct userdata *u) {
         size_t l;
         
         if (!u->memchunk.memblock) {
-            u->memchunk.memblock = pa_memblock_new(u->memchunk.length = u->fragment_size);
+            u->memchunk.memblock = pa_memblock_new(u->memchunk.length = u->fragment_size, u->source->core->memblock_stat);
             u->memchunk.index = 0;
         }
             
         assert(u->memchunk.memblock && u->memchunk.memblock->data && u->memchunk.length && u->memchunk.memblock->length && (u->memchunk.length % u->frame_size) == 0);
 
-        if ((frames = snd_pcm_readi(u->pcm_handle, u->memchunk.memblock->data + u->memchunk.index, u->memchunk.length / u->frame_size)) < 0) {
+        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;
             
@@ -104,7 +111,7 @@ static void do_read(struct userdata *u) {
                 continue;
             }
 
-            fprintf(stderr, "snd_pcm_readi() failed: %s\n", strerror(-frames));
+            pa_log(__FILE__": snd_pcm_readi() failed: %s\n", strerror(-frames));
             return;
         }
 
@@ -128,9 +135,9 @@ static void do_read(struct userdata *u) {
     }
 }
 
-static void io_callback(struct pa_mainloop_api*a, void *id, int fd, enum pa_mainloop_api_io_events events, void *userdata) {
+static void io_callback(struct pa_mainloop_api*a, struct pa_io_event *e, int fd, enum pa_io_event_flags f, void *userdata) {
     struct userdata *u = userdata;
-    assert(u && a && id);
+    assert(u && a && e);
 
     if (snd_pcm_state(u->pcm_handle) == SND_PCM_STATE_XRUN)
         xrun_recovery(u);
@@ -138,7 +145,21 @@ static void io_callback(struct pa_mainloop_api*a, void *id, int fd, enum pa_main
     do_read(u);
 }
 
-int pa_module_init(struct pa_core *c, struct pa_module*m) {
+static pa_usec_t source_get_latency_cb(struct pa_source *s) {
+    struct userdata *u = s->userdata;
+    snd_pcm_sframes_t frames;
+    assert(s && u && u->source);
+
+    if (snd_pcm_delay(u->pcm_handle, &frames) < 0) {
+        pa_log(__FILE__": failed to get delay\n");
+        s->get_latency = NULL;
+        return 0;
+    }
+
+    return pa_bytes_to_usec(frames * u->frame_size, &s->sample_spec);
+}
+
+int pa__init(struct pa_core *c, struct pa_module*m) {
     struct pa_modargs *ma = NULL;
     int ret = -1;
     struct userdata *u = NULL;
@@ -149,13 +170,13 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
     size_t frame_size;
     
     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
-        fprintf(stderr, __FILE__": failed to parse module arguments\n");
+        pa_log(__FILE__": failed to parse module arguments\n");
         goto fail;
     }
 
     ss = c->default_sample_spec;
     if (pa_modargs_get_sample_spec(ma, &ss) < 0) {
-        fprintf(stderr, __FILE__": failed to parse sample specification\n");
+        pa_log(__FILE__": failed to parse sample specification\n");
         goto fail;
     }
     frame_size = pa_frame_size(&ss);
@@ -163,7 +184,7 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
     periods = 12;
     fragsize = 1024;
     if (pa_modargs_get_value_u32(ma, "fragments", &periods) < 0 || pa_modargs_get_value_u32(ma, "fragment_size", &fragsize) < 0) {
-        fprintf(stderr, __FILE__": failed to parse buffer metrics\n");
+        pa_log(__FILE__": failed to parse buffer metrics\n");
         goto fail;
     }
     buffer_size = fragsize/frame_size*periods;
@@ -173,12 +194,12 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
     u->module = m;
     
     if (snd_pcm_open(&u->pcm_handle, dev = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK) < 0) {
-        fprintf(stderr, __FILE__": Error opening PCM device %s\n", dev);
+        pa_log(__FILE__": Error opening PCM device %s\n", dev);
         goto fail;
     }
 
     if (pa_alsa_set_hw_params(u->pcm_handle, &ss, &periods, &buffer_size) < 0) {
-        fprintf(stderr, __FILE__": Failed to set hardware parameters\n");
+        pa_log(__FILE__": Failed to set hardware parameters\n");
         goto fail;
     }
 
@@ -186,18 +207,19 @@ int pa_module_init(struct pa_core *c, struct pa_module*m) {
     assert(u->source);
 
     u->source->userdata = u;
+    u->source->get_latency = source_get_latency_cb;
     pa_source_set_owner(u->source, m);
     u->source->description = pa_sprintf_malloc("Advanced Linux Sound Architecture PCM on '%s'", dev);
 
-    if (pa_create_io_sources(u->pcm_handle, c->mainloop, &u->io_sources, &u->n_io_sources, io_callback, u) < 0) {
-        fprintf(stderr, __FILE__": failed to obtain file descriptors\n");
+    if (pa_create_io_events(u->pcm_handle, c->mainloop, &u->io_events, &u->n_io_events, io_callback, u) < 0) {
+        pa_log(__FILE__": failed to obtain file descriptors\n");
         goto fail;
     }
 
     u->frame_size = frame_size;
     u->fragment_size = buffer_size*u->frame_size/periods;
 
-    fprintf(stderr, __FILE__": using %u fragments of size %u bytes.\n", periods, u->fragment_size);
+    pa_log(__FILE__": using %u fragments of size %u bytes.\n", periods, u->fragment_size);
 
     u->memchunk.memblock = NULL;
     u->memchunk.index = u->memchunk.length = 0;
@@ -215,23 +237,25 @@ finish:
 fail:
     
     if (u)
-        pa_module_done(c, m);
+        pa__done(c, m);
 
     goto finish;
 }
 
-void pa_module_done(struct pa_core *c, struct pa_module*m) {
+void pa__done(struct pa_core *c, struct pa_module*m) {
     struct userdata *u;
     assert(c && m);
 
     if (!(u = m->userdata))
         return;
     
-    if (u->source)
-        pa_source_free(u->source);
+    if (u->source) {
+        pa_source_disconnect(u->source);
+        pa_source_unref(u->source);
+    }
     
-    if (u->io_sources)
-        pa_free_io_sources(c->mainloop, u->io_sources, u->n_io_sources);
+    if (u->io_events)
+        pa_free_io_events(c->mainloop, u->io_events, u->n_io_events);
     
     if (u->pcm_handle) {
         snd_pcm_drop(u->pcm_handle);