mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-04 13:29:59 -05:00
Reorganised the source tree. We now have src/ with a couple of subdirs:
* daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Pierre Ossman
parent
5b881e6228
commit
e205b25d65
246 changed files with 724 additions and 689 deletions
468
src/modules/module-oss.c
Normal file
468
src/modules/module-oss.c
Normal file
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@ -0,0 +1,468 @@
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/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <sys/soundcard.h>
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#include <sys/ioctl.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <assert.h>
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#include <errno.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <limits.h>
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#include <polypcore/iochannel.h>
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#include <polypcore/sink.h>
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#include <polypcore/source.h>
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#include <polypcore/module.h>
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#include <polypcore/oss-util.h>
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#include <polypcore/sample-util.h>
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#include <polypcore/util.h>
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#include <polypcore/modargs.h>
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#include <polypcore/xmalloc.h>
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#include <polypcore/log.h>
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#include "module-oss-symdef.h"
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PA_MODULE_AUTHOR("Lennart Poettering")
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PA_MODULE_DESCRIPTION("OSS Sink/Source")
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PA_MODULE_VERSION(PACKAGE_VERSION)
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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>")
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struct userdata {
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pa_sink *sink;
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pa_source *source;
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pa_iochannel *io;
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pa_core *core;
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pa_memchunk memchunk, silence;
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uint32_t in_fragment_size, out_fragment_size, sample_size;
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int use_getospace, use_getispace;
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int fd;
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pa_module *module;
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};
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static const char* const valid_modargs[] = {
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"sink_name",
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"source_name",
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"device",
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"record",
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"playback",
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"fragments",
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"fragment_size",
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"format",
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"rate",
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"channels",
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NULL
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};
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#define DEFAULT_SINK_NAME "oss_output"
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#define DEFAULT_SOURCE_NAME "oss_input"
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#define DEFAULT_DEVICE "/dev/dsp"
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static void update_usage(struct userdata *u) {
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pa_module_set_used(u->module,
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(u->sink ? pa_idxset_size(u->sink->inputs) : 0) +
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(u->sink ? pa_idxset_size(u->sink->monitor_source->outputs) : 0) +
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(u->source ? pa_idxset_size(u->source->outputs) : 0));
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}
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static void do_write(struct userdata *u) {
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pa_memchunk *memchunk;
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ssize_t r;
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size_t l;
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int loop = 0;
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assert(u);
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if (!u->sink || !pa_iochannel_is_writable(u->io))
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return;
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update_usage(u);
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l = u->out_fragment_size;
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if (u->use_getospace) {
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audio_buf_info info;
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if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0)
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u->use_getospace = 0;
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else {
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if (info.bytes/l > 0) {
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l = (info.bytes/l)*l;
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loop = 1;
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}
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}
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}
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do {
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memchunk = &u->memchunk;
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if (!memchunk->length)
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if (pa_sink_render(u->sink, l, memchunk) < 0)
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memchunk = &u->silence;
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assert(memchunk->memblock);
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assert(memchunk->memblock->data);
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assert(memchunk->length);
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if ((r = pa_iochannel_write(u->io, (uint8_t*) memchunk->memblock->data + memchunk->index, memchunk->length)) < 0) {
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pa_log(__FILE__": write() failed: %s\n", strerror(errno));
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break;
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}
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if (memchunk == &u->silence)
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assert(r % u->sample_size == 0);
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else {
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u->memchunk.index += r;
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u->memchunk.length -= r;
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if (u->memchunk.length <= 0) {
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pa_memblock_unref(u->memchunk.memblock);
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u->memchunk.memblock = NULL;
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}
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}
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l = l > (size_t) r ? l - r : 0;
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} while (loop && l > 0);
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}
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static void do_read(struct userdata *u) {
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pa_memchunk memchunk;
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ssize_t r;
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size_t l;
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int loop = 0;
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assert(u);
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if (!u->source || !pa_iochannel_is_readable(u->io) || !pa_idxset_size(u->source->outputs))
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return;
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update_usage(u);
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l = u->in_fragment_size;
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if (u->use_getispace) {
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audio_buf_info info;
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if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0)
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u->use_getispace = 0;
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else {
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if (info.bytes/l > 0) {
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l = (info.bytes/l)*l;
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loop = 1;
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}
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}
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}
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do {
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memchunk.memblock = pa_memblock_new(l, u->core->memblock_stat);
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assert(memchunk.memblock);
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if ((r = pa_iochannel_read(u->io, memchunk.memblock->data, memchunk.memblock->length)) < 0) {
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pa_memblock_unref(memchunk.memblock);
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if (errno != EAGAIN)
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pa_log(__FILE__": read() failed: %s\n", strerror(errno));
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break;
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}
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assert(r <= (ssize_t) memchunk.memblock->length);
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memchunk.length = memchunk.memblock->length = r;
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memchunk.index = 0;
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pa_source_post(u->source, &memchunk);
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pa_memblock_unref(memchunk.memblock);
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l = l > (size_t) r ? l - r : 0;
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} while (loop && l > 0);
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}
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static void io_callback(PA_GCC_UNUSED pa_iochannel *io, void*userdata) {
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struct userdata *u = userdata;
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assert(u);
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do_write(u);
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do_read(u);
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}
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static void source_notify_cb(pa_source *s) {
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struct userdata *u = s->userdata;
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assert(u);
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do_read(u);
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}
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static pa_usec_t sink_get_latency_cb(pa_sink *s) {
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pa_usec_t r = 0;
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int arg;
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struct userdata *u = s->userdata;
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assert(s && u && u->sink);
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if (ioctl(u->fd, SNDCTL_DSP_GETODELAY, &arg) < 0) {
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pa_log_info(__FILE__": device doesn't support SNDCTL_DSP_GETODELAY: %s\n", strerror(errno));
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s->get_latency = NULL;
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return 0;
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}
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r += pa_bytes_to_usec(arg, &s->sample_spec);
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if (u->memchunk.memblock)
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r += pa_bytes_to_usec(u->memchunk.length, &s->sample_spec);
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return r;
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}
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static pa_usec_t source_get_latency_cb(pa_source *s) {
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struct userdata *u = s->userdata;
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audio_buf_info info;
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assert(s && u && u->source);
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if (!u->use_getispace)
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return 0;
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if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
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u->use_getispace = 0;
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return 0;
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}
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if (info.bytes <= 0)
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return 0;
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return pa_bytes_to_usec(info.bytes, &s->sample_spec);
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}
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static int sink_get_hw_volume(pa_sink *s) {
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struct userdata *u = s->userdata;
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char cv[PA_CVOLUME_SNPRINT_MAX];
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unsigned vol;
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if (ioctl(u->fd, SOUND_MIXER_READ_PCM, &vol) < 0) {
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pa_log_info(__FILE__": device doesn't support reading mixer settings: %s\n", strerror(errno));
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s->get_hw_volume = NULL;
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return -1;
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}
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s->hw_volume.values[0] = ((vol & 0xFF) * PA_VOLUME_NORM) / 100;
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if ((s->hw_volume.channels = s->sample_spec.channels) >= 2)
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s->hw_volume.values[1] = (((vol >> 8) & 0xFF) * PA_VOLUME_NORM) / 100;
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pa_log_info(__FILE__": Read mixer settings: %s\n", pa_cvolume_snprint(cv, sizeof(cv), &s->hw_volume));
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return 0;
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}
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static int sink_set_hw_volume(pa_sink *s) {
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struct userdata *u = s->userdata;
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char cv[PA_CVOLUME_SNPRINT_MAX];
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unsigned vol;
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vol = (s->hw_volume.values[0]*100)/PA_VOLUME_NORM;
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if (s->sample_spec.channels >= 2)
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vol |= ((s->hw_volume.values[1]*100)/PA_VOLUME_NORM) << 8;
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if (ioctl(u->fd, SOUND_MIXER_WRITE_PCM, &vol) < 0) {
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pa_log_info(__FILE__": device doesn't support writing mixer settings: %s\n", strerror(errno));
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s->set_hw_volume = NULL;
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return -1;
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}
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pa_log_info(__FILE__": Wrote mixer settings: %s\n", pa_cvolume_snprint(cv, sizeof(cv), &s->hw_volume));
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return 0;
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}
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int pa__init(pa_core *c, pa_module*m) {
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struct audio_buf_info info;
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struct userdata *u = NULL;
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const char *p;
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int fd = -1;
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int nfrags, frag_size, in_frag_size, out_frag_size;
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int mode;
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int record = 1, playback = 1;
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pa_sample_spec ss;
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pa_modargs *ma = NULL;
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assert(c && m);
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if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
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pa_log(__FILE__": failed to parse module arguments.\n");
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goto fail;
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}
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if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
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pa_log(__FILE__": record= and playback= expect numeric argument.\n");
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goto fail;
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}
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|
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if (!playback && !record) {
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pa_log(__FILE__": neither playback nor record enabled for device.\n");
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goto fail;
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}
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mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
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nfrags = 12;
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frag_size = 1024;
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if (pa_modargs_get_value_s32(ma, "fragments", &nfrags) < 0 || pa_modargs_get_value_s32(ma, "fragment_size", &frag_size) < 0) {
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pa_log(__FILE__": failed to parse fragments arguments\n");
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goto fail;
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||||
}
|
||||
|
||||
ss = c->default_sample_spec;
|
||||
if (pa_modargs_get_sample_spec(ma, &ss) < 0) {
|
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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;
|
||||
|
||||
pa_log_info(__FILE__": device opened in %s mode.\n", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
|
||||
|
||||
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) {
|
||||
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) {
|
||||
pa_log_info(__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) {
|
||||
pa_log_info(__FILE__": output -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
|
||||
out_frag_size = info.fragsize;
|
||||
u->use_getospace = 1;
|
||||
}
|
||||
|
||||
if (mode != O_WRONLY) {
|
||||
u->source = pa_source_new(c, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, NULL);
|
||||
assert(u->source);
|
||||
u->source->userdata = u;
|
||||
u->source->notify = source_notify_cb;
|
||||
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
|
||||
u->source = NULL;
|
||||
|
||||
if (mode != O_RDONLY) {
|
||||
u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, NULL);
|
||||
assert(u->sink);
|
||||
u->sink->get_latency = sink_get_latency_cb;
|
||||
u->sink->get_hw_volume = sink_get_hw_volume;
|
||||
u->sink->set_hw_volume = sink_set_hw_volume;
|
||||
u->sink->userdata = u;
|
||||
pa_sink_set_owner(u->sink, m);
|
||||
u->sink->description = pa_sprintf_malloc("Open Sound System PCM on '%s'", p);
|
||||
} else
|
||||
u->sink = NULL;
|
||||
|
||||
assert(u->source || u->sink);
|
||||
|
||||
u->io = pa_iochannel_new(c->mainloop, u->source ? fd : -1, u->sink ? fd : -1);
|
||||
assert(u->io);
|
||||
pa_iochannel_set_callback(u->io, io_callback, u);
|
||||
u->fd = fd;
|
||||
|
||||
u->memchunk.memblock = NULL;
|
||||
u->memchunk.length = 0;
|
||||
u->sample_size = pa_frame_size(&ss);
|
||||
|
||||
u->out_fragment_size = out_frag_size;
|
||||
u->in_fragment_size = in_frag_size;
|
||||
u->silence.memblock = pa_memblock_new(u->silence.length = u->out_fragment_size, u->core->memblock_stat);
|
||||
assert(u->silence.memblock);
|
||||
pa_silence_memblock(u->silence.memblock, &ss);
|
||||
u->silence.index = 0;
|
||||
|
||||
u->module = m;
|
||||
m->userdata = u;
|
||||
|
||||
pa_modargs_free(ma);
|
||||
|
||||
/*
|
||||
* Some crappy drivers do not start the recording until we read something.
|
||||
* Without this snippet, poll will never register the fd as ready.
|
||||
*/
|
||||
if (u->source) {
|
||||
char buf[u->sample_size];
|
||||
read(u->fd, buf, u->sample_size);
|
||||
}
|
||||
|
||||
/* Read mixer settings */
|
||||
if (u->sink)
|
||||
sink_get_hw_volume(u->sink);
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
if (fd >= 0)
|
||||
close(fd);
|
||||
|
||||
if (ma)
|
||||
pa_modargs_free(ma);
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
void pa__done(pa_core *c, pa_module*m) {
|
||||
struct userdata *u;
|
||||
assert(c && m);
|
||||
|
||||
if (!(u = m->userdata))
|
||||
return;
|
||||
|
||||
if (u->memchunk.memblock)
|
||||
pa_memblock_unref(u->memchunk.memblock);
|
||||
if (u->silence.memblock)
|
||||
pa_memblock_unref(u->silence.memblock);
|
||||
|
||||
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);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue