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
426
src/modules/module-oss-mmap.c
Normal file
426
src/modules/module-oss-mmap.c
Normal file
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@ -0,0 +1,426 @@
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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 <sys/mman.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-mmap-symdef.h"
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PA_MODULE_AUTHOR("Lennart Poettering")
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PA_MODULE_DESCRIPTION("OSS Sink/Source (mmap)")
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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_core *core;
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pa_sample_spec sample_spec;
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size_t in_fragment_size, out_fragment_size, in_fragments, out_fragments, out_fill;
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int fd;
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void *in_mmap, *out_mmap;
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size_t in_mmap_length, out_mmap_length;
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pa_io_event *io_event;
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pa_memblock **in_memblocks, **out_memblocks;
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unsigned out_current, in_current;
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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 out_fill_memblocks(struct userdata *u, unsigned n) {
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assert(u && u->out_memblocks);
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while (n > 0) {
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pa_memchunk chunk;
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if (u->out_memblocks[u->out_current])
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pa_memblock_unref_fixed(u->out_memblocks[u->out_current]);
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chunk.memblock = u->out_memblocks[u->out_current] = pa_memblock_new_fixed((uint8_t*)u->out_mmap+u->out_fragment_size*u->out_current, u->out_fragment_size, 1, u->core->memblock_stat);
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assert(chunk.memblock);
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chunk.length = chunk.memblock->length;
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chunk.index = 0;
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pa_sink_render_into_full(u->sink, &chunk);
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u->out_current++;
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while (u->out_current >= u->out_fragments)
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u->out_current -= u->out_fragments;
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n--;
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}
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}
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static void do_write(struct userdata *u) {
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struct count_info info;
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assert(u && u->sink);
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update_usage(u);
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if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) {
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pa_log(__FILE__": SNDCTL_DSP_GETOPTR: %s\n", strerror(errno));
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return;
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}
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u->out_fill = (u->out_fragment_size * u->out_fragments) - (info.ptr % u->out_fragment_size);
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if (!info.blocks)
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return;
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out_fill_memblocks(u, info.blocks);
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}
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static void in_post_memblocks(struct userdata *u, unsigned n) {
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assert(u && u->in_memblocks);
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while (n > 0) {
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pa_memchunk chunk;
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if (!u->in_memblocks[u->in_current]) {
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chunk.memblock = u->in_memblocks[u->in_current] = pa_memblock_new_fixed((uint8_t*) u->in_mmap+u->in_fragment_size*u->in_current, u->in_fragment_size, 1, u->core->memblock_stat);
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chunk.length = chunk.memblock->length;
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chunk.index = 0;
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pa_source_post(u->source, &chunk);
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}
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u->in_current++;
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while (u->in_current >= u->in_fragments)
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u->in_current -= u->in_fragments;
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n--;
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}
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}
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static void in_clear_memblocks(struct userdata*u, unsigned n) {
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unsigned i = u->in_current;
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assert(u && u->in_memblocks);
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if (n > u->in_fragments)
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n = u->in_fragments;
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while (n > 0) {
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if (u->in_memblocks[i]) {
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pa_memblock_unref_fixed(u->in_memblocks[i]);
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u->in_memblocks[i] = NULL;
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}
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i++;
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while (i >= u->in_fragments)
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i -= u->in_fragments;
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n--;
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}
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}
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static void do_read(struct userdata *u) {
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struct count_info info;
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assert(u && u->source);
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update_usage(u);
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if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) {
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pa_log(__FILE__": SNDCTL_DSP_GETIPTR: %s\n", strerror(errno));
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return;
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}
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if (!info.blocks)
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return;
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in_post_memblocks(u, info.blocks);
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in_clear_memblocks(u, u->in_fragments/2);
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}
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static void io_callback(pa_mainloop_api *m, pa_io_event *e, PA_GCC_UNUSED int fd, pa_io_event_flags_t f, void *userdata) {
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struct userdata *u = userdata;
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assert (u && u->core->mainloop == m && u->io_event == e);
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if (f & PA_IO_EVENT_INPUT)
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do_read(u);
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if (f & PA_IO_EVENT_OUTPUT)
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do_write(u);
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}
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static pa_usec_t sink_get_latency_cb(pa_sink *s) {
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struct userdata *u = s->userdata;
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assert(s && u);
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do_write(u);
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return pa_bytes_to_usec(u->out_fill, &s->sample_spec);
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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 nfrags, frag_size;
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int mode, caps;
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int enable_bits = 0, zero = 0;
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int playback = 1, record = 1;
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pa_modargs *ma = NULL;
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assert(c && m);
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m->userdata = u = pa_xmalloc0(sizeof(struct userdata));
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u->module = m;
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u->fd = -1;
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u->core = c;
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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 arguments.\n");
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goto fail;
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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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}
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u->sample_spec = c->default_sample_spec;
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if (pa_modargs_get_sample_spec(ma, &u->sample_spec) < 0) {
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pa_log(__FILE__": failed to parse sample specification\n");
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goto fail;
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}
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if ((u->fd = pa_oss_open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, &caps)) < 0)
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goto fail;
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if (!(caps & DSP_CAP_MMAP) || !(caps & DSP_CAP_REALTIME) || !(caps & DSP_CAP_TRIGGER)) {
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pa_log(__FILE__": OSS device not mmap capable.\n");
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goto fail;
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}
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pa_log(__FILE__": device opened in %s mode.\n", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
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if (nfrags >= 2 && frag_size >= 1)
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if (pa_oss_set_fragments(u->fd, nfrags, frag_size) < 0)
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goto fail;
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if (pa_oss_auto_format(u->fd, &u->sample_spec) < 0)
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goto fail;
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if (mode != O_WRONLY) {
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if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
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pa_log(__FILE__": SNDCTL_DSP_GETISPACE: %s\n", strerror(errno));
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goto fail;
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}
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pa_log_info(__FILE__": input -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
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u->in_mmap_length = (u->in_fragment_size = info.fragsize) * (u->in_fragments = info.fragstotal);
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if ((u->in_mmap = mmap(NULL, u->in_mmap_length, PROT_READ, MAP_SHARED, u->fd, 0)) == MAP_FAILED) {
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if (mode == O_RDWR) {
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pa_log(__FILE__": mmap failed for input. Changing to O_WRONLY mode.\n");
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mode = O_WRONLY;
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} else {
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pa_log(__FILE__": mmap(): %s\n", strerror(errno));
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goto fail;
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}
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} else {
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u->source = pa_source_new(c, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &u->sample_spec, NULL);
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assert(u->source);
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u->source->userdata = u;
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pa_source_set_owner(u->source, m);
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u->source->description = pa_sprintf_malloc("Open Sound System PCM/mmap() on '%s'", p);
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u->in_memblocks = pa_xmalloc0(sizeof(pa_memblock *)*u->in_fragments);
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enable_bits |= PCM_ENABLE_INPUT;
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}
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}
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if (mode != O_RDONLY) {
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if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
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pa_log(__FILE__": SNDCTL_DSP_GETOSPACE: %s\n", strerror(errno));
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goto fail;
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}
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pa_log_info(__FILE__": output -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
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u->out_mmap_length = (u->out_fragment_size = info.fragsize) * (u->out_fragments = info.fragstotal);
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if ((u->out_mmap = mmap(NULL, u->out_mmap_length, PROT_WRITE, MAP_SHARED, u->fd, 0)) == MAP_FAILED) {
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if (mode == O_RDWR) {
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pa_log(__FILE__": mmap filed for output. Changing to O_RDONLY mode.\n");
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mode = O_RDONLY;
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} else {
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pa_log(__FILE__": mmap(): %s\n", strerror(errno));
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goto fail;
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}
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} else {
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pa_silence_memory(u->out_mmap, u->out_mmap_length, &u->sample_spec);
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u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &u->sample_spec, NULL);
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assert(u->sink);
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u->sink->get_latency = sink_get_latency_cb;
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u->sink->userdata = u;
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pa_sink_set_owner(u->sink, m);
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u->sink->description = pa_sprintf_malloc("Open Sound System PCM/mmap() on '%s'", p);
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u->out_memblocks = pa_xmalloc0(sizeof(struct memblock *)*u->out_fragments);
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enable_bits |= PCM_ENABLE_OUTPUT;
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}
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}
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zero = 0;
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if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &zero) < 0) {
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pa_log(__FILE__": SNDCTL_DSP_SETTRIGGER: %s\n", strerror(errno));
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goto fail;
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}
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if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &enable_bits) < 0) {
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pa_log(__FILE__": SNDCTL_DSP_SETTRIGGER: %s\n", strerror(errno));
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goto fail;
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}
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assert(u->source || u->sink);
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u->io_event = c->mainloop->io_new(c->mainloop, u->fd, (u->source ? PA_IO_EVENT_INPUT : 0) | (u->sink ? PA_IO_EVENT_OUTPUT : 0), io_callback, u);
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assert(u->io_event);
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pa_modargs_free(ma);
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return 0;
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fail:
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pa__done(c, m);
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if (ma)
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pa_modargs_free(ma);
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return -1;
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}
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void pa__done(pa_core *c, pa_module*m) {
|
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struct userdata *u;
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assert(c && m);
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|
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if (!(u = m->userdata))
|
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return;
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||||
|
||||
if (u->out_memblocks) {
|
||||
unsigned i;
|
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for (i = 0; i < u->out_fragments; i++)
|
||||
if (u->out_memblocks[i])
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pa_memblock_unref_fixed(u->out_memblocks[i]);
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pa_xfree(u->out_memblocks);
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||||
}
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||||
|
||||
if (u->in_memblocks) {
|
||||
unsigned i;
|
||||
for (i = 0; i < u->in_fragments; i++)
|
||||
if (u->in_memblocks[i])
|
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pa_memblock_unref_fixed(u->in_memblocks[i]);
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pa_xfree(u->in_memblocks);
|
||||
}
|
||||
|
||||
if (u->in_mmap && u->in_mmap != MAP_FAILED)
|
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munmap(u->in_mmap, u->in_mmap_length);
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if (u->out_mmap && u->out_mmap != MAP_FAILED)
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munmap(u->out_mmap, u->out_mmap_length);
|
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|
||||
if (u->sink) {
|
||||
pa_sink_disconnect(u->sink);
|
||||
pa_sink_unref(u->sink);
|
||||
}
|
||||
|
||||
if (u->source) {
|
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pa_source_disconnect(u->source);
|
||||
pa_source_unref(u->source);
|
||||
}
|
||||
|
||||
if (u->io_event)
|
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u->core->mainloop->io_free(u->io_event);
|
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|
||||
if (u->fd >= 0)
|
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close(u->fd);
|
||||
|
||||
pa_xfree(u);
|
||||
}
|
||||
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