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.
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.
#include "util.h"
#include "modargs.h"
#include "xmalloc.h"
+#include "log.h"
+#include "module-oss-symdef.h"
+
+PA_MODULE_AUTHOR("Lennart Poettering")
+PA_MODULE_DESCRIPTION("OSS Sink/Source")
+PA_MODULE_VERSION(PACKAGE_VERSION)
+PA_MODULE_USAGE("sink_name=<name for the sink> source_name=<name for the source> device=<OSS device> record=<enable source?> playback=<enable sink?> format=<sample format> channels=<number of channels> rate=<sample rate> fragments=<number of fragments> fragment_size=<fragment size>")
struct userdata {
struct pa_sink *sink;
struct pa_memchunk memchunk, silence;
uint32_t in_fragment_size, out_fragment_size, sample_size;
+ int use_getospace, use_getispace;
int fd;
struct pa_module *module;
static void do_write(struct userdata *u) {
struct pa_memchunk *memchunk;
ssize_t r;
+ size_t l;
+ int loop = 0;
+
assert(u);
if (!u->sink || !pa_iochannel_is_writable(u->io))
update_usage(u);
- memchunk = &u->memchunk;
-
- if (!memchunk->length)
- if (pa_sink_render(u->sink, u->out_fragment_size, memchunk) < 0)
- memchunk = &u->silence;
-
- assert(memchunk->memblock);
- assert(memchunk->memblock->data);
- assert(memchunk->length);
+ l = u->out_fragment_size;
- if ((r = pa_iochannel_write(u->io, (uint8_t*) memchunk->memblock->data + memchunk->index, memchunk->length)) < 0) {
- fprintf(stderr, "write() failed: %s\n", strerror(errno));
- return;
+ if (u->use_getospace) {
+ audio_buf_info info;
+
+ if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0)
+ u->use_getospace = 0;
+ else {
+ if (info.bytes/l > 0) {
+ l = (info.bytes/l)*l;
+ loop = 1;
+ }
+ }
}
+
+ do {
+ memchunk = &u->memchunk;
+
+ if (!memchunk->length)
+ if (pa_sink_render(u->sink, l, memchunk) < 0)
+ memchunk = &u->silence;
- if (memchunk == &u->silence)
- assert(r % u->sample_size == 0);
- else {
- u->memchunk.index += r;
- u->memchunk.length -= r;
+ assert(memchunk->memblock);
+ assert(memchunk->memblock->data);
+ assert(memchunk->length);
- if (u->memchunk.length <= 0) {
- pa_memblock_unref(u->memchunk.memblock);
- u->memchunk.memblock = NULL;
+ if ((r = pa_iochannel_write(u->io, (uint8_t*) memchunk->memblock->data + memchunk->index, memchunk->length)) < 0) {
+ pa_log(__FILE__": write() failed: %s\n", strerror(errno));
+ break;
}
- }
+
+ if (memchunk == &u->silence)
+ assert(r % u->sample_size == 0);
+ else {
+ u->memchunk.index += r;
+ u->memchunk.length -= r;
+
+ if (u->memchunk.length <= 0) {
+ pa_memblock_unref(u->memchunk.memblock);
+ u->memchunk.memblock = NULL;
+ }
+ }
+
+ l = l > (size_t) r ? l - r : 0;
+ } while (loop && l > 0);
}
static void do_read(struct userdata *u) {
struct pa_memchunk memchunk;
ssize_t r;
+ size_t l;
+ int loop = 0;
assert(u);
if (!u->source || !pa_iochannel_is_readable(u->io))
update_usage(u);
- memchunk.memblock = pa_memblock_new(u->in_fragment_size, u->core->memblock_stat);
- assert(memchunk.memblock);
- if ((r = pa_iochannel_read(u->io, memchunk.memblock->data, memchunk.memblock->length)) < 0) {
- pa_memblock_unref(memchunk.memblock);
- if (errno != EAGAIN)
- fprintf(stderr, "read() failed: %s\n", strerror(errno));
- return;
- }
+ l = u->in_fragment_size;
- assert(r <= (ssize_t) memchunk.memblock->length);
- memchunk.length = memchunk.memblock->length = r;
- memchunk.index = 0;
+ if (u->use_getispace) {
+ audio_buf_info info;
+
+ if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0)
+ u->use_getispace = 0;
+ else {
+ if (info.bytes/l > 0) {
+ l = (info.bytes/l)*l;
+ loop = 1;
+ }
+ }
+ }
+
+ do {
+ memchunk.memblock = pa_memblock_new(l, u->core->memblock_stat);
+ assert(memchunk.memblock);
+ if ((r = pa_iochannel_read(u->io, memchunk.memblock->data, memchunk.memblock->length)) < 0) {
+ pa_memblock_unref(memchunk.memblock);
+ if (errno != EAGAIN)
+ pa_log(__FILE__": read() failed: %s\n", strerror(errno));
+ break;
+ }
+
+ assert(r <= (ssize_t) memchunk.memblock->length);
+ memchunk.length = memchunk.memblock->length = r;
+ memchunk.index = 0;
+
+ pa_source_post(u->source, &memchunk);
+ pa_memblock_unref(memchunk.memblock);
- pa_source_post(u->source, &memchunk);
- pa_memblock_unref(memchunk.memblock);
+ l = l > (size_t) r ? l - r : 0;
+ } while (loop && l > 0);
}
static void io_callback(struct pa_iochannel *io, void*userdata) {
do_read(u);
}
-static uint32_t sink_get_latency_cb(struct pa_sink *s) {
+static pa_usec_t sink_get_latency_cb(struct pa_sink *s) {
+ pa_usec_t r = 0;
int arg;
struct userdata *u = s->userdata;
assert(s && u && u->sink);
if (ioctl(u->fd, SNDCTL_DSP_GETODELAY, &arg) < 0) {
- fprintf(stderr, "module-oss: device doesn't support SNDCTL_DSP_GETODELAY.\n");
+ pa_log(__FILE__": device doesn't support SNDCTL_DSP_GETODELAY.\n");
s->get_latency = NULL;
return 0;
}
- return pa_bytes_to_usec(arg, &s->sample_spec);
+ r += pa_bytes_to_usec(arg, &s->sample_spec);
+
+ if (u->memchunk.memblock)
+ r += pa_bytes_to_usec(u->memchunk.length, &s->sample_spec);
+
+ return r;
+}
+
+static pa_usec_t source_get_latency_cb(struct pa_source *s) {
+ struct userdata *u = s->userdata;
+ audio_buf_info info;
+ assert(s && u && u->sink);
+
+ if (!u->use_getispace)
+ return 0;
+
+ if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
+ u->use_getispace = 0;
+ return 0;
+ }
+
+ if (info.bytes <= 0)
+ return 0;
+
+ return pa_bytes_to_usec(info.bytes, &s->sample_spec);
}
-int pa_module_init(struct pa_core *c, struct pa_module*m) {
+int pa__init(struct pa_core *c, struct pa_module*m) {
struct audio_buf_info info;
struct userdata *u = NULL;
const char *p;
int fd = -1;
int nfrags, frag_size, in_frag_size, out_frag_size;
int mode;
- uint32_t record = 1, playback = 1;
+ int record = 1, playback = 1;
struct pa_sample_spec ss;
struct pa_modargs *ma = NULL;
assert(c && m);
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;
}
- if (pa_modargs_get_value_u32(ma, "record", &record) < 0 || pa_modargs_get_value_u32(ma, "playback", &playback) < 0) {
- fprintf(stderr, __FILE__": record= and playback= expect numeric argument.\n");
+ if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
+ pa_log(__FILE__": record= and playback= expect numeric argument.\n");
goto fail;
}
- mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
- if (mode == 0) {
- fprintf(stderr, __FILE__": neither playback nor record enabled for device.\n");
+ if (!playback && !record) {
+ pa_log(__FILE__": neither playback nor record enabled for device.\n");
goto fail;
}
+ mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
+
nfrags = 12;
frag_size = 1024;
- if (pa_modargs_get_value_u32(ma, "fragments", &nfrags) < 0 || nfrags < 2 || pa_modargs_get_value_u32(ma, "fragment_size", &frag_size) < 0 || frag_size < 1) {
- fprintf(stderr, __FILE__": failed to parse fragments arguments\n");
+ if (pa_modargs_get_value_s32(ma, "fragments", &nfrags) < 0 || pa_modargs_get_value_s32(ma, "fragment_size", &frag_size) < 0) {
+ pa_log(__FILE__": failed to parse fragments 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;
}
if ((fd = pa_oss_open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, NULL)) < 0)
goto fail;
- fprintf(stderr, "module-oss: device opened in %s mode.\n", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
+ pa_log(__FILE__": device opened in %s mode.\n", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
+
- if (pa_oss_set_fragments(fd, nfrags, frag_size) < 0)
- goto fail;
+ if (nfrags >= 2 && frag_size >= 1)
+ if (pa_oss_set_fragments(fd, nfrags, frag_size) < 0)
+ goto fail;
if (pa_oss_auto_format(fd, &ss) < 0)
goto fail;
if (ioctl(fd, SNDCTL_DSP_GETBLKSIZE, &frag_size) < 0) {
- fprintf(stderr, "SNDCTL_DSP_GETBLKSIZE: %s\n", strerror(errno));
+ pa_log(__FILE__": SNDCTL_DSP_GETBLKSIZE: %s\n", strerror(errno));
goto fail;
}
assert(frag_size);
in_frag_size = out_frag_size = frag_size;
+ u = pa_xmalloc(sizeof(struct userdata));
+ u->core = c;
+ u->use_getospace = u->use_getispace = 0;
+
if (ioctl(fd, SNDCTL_DSP_GETISPACE, &info) >= 0) {
- fprintf(stderr, "module-oss: input -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
+ pa_log(__FILE__": input -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
in_frag_size = info.fragsize;
+ u->use_getispace = 1;
}
if (ioctl(fd, SNDCTL_DSP_GETOSPACE, &info) >= 0) {
- fprintf(stderr, "module-oss: output -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
+ pa_log(__FILE__": output -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
out_frag_size = info.fragsize;
+ u->use_getospace = 1;
}
- u = pa_xmalloc(sizeof(struct userdata));
- u->core = c;
-
if (mode != O_WRONLY) {
u->source = pa_source_new(c, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss);
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("Open Sound System PCM on '%s'", p);
} else
return -1;
}
-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->silence.memblock)
pa_memblock_unref(u->silence.memblock);
- if (u->sink)
- pa_sink_free(u->sink);
- if (u->source)
- pa_source_free(u->source);
+ if (u->sink) {
+ pa_sink_disconnect(u->sink);
+ pa_sink_unref(u->sink);
+ }
+
+ if (u->source) {
+ pa_source_disconnect(u->source);
+ pa_source_unref(u->source);
+ }
pa_iochannel_free(u->io);
pa_xfree(u);