mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-03 09:01:50 -05:00
93c8fe6577
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@183 fefdeb5f-60dc-0310-8127-8f9354f1896f
510 lines
16 KiB
C
510 lines
16 KiB
C
/* $Id$ */
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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 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 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 <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include "polyplib-internal.h"
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#include "xmalloc.h"
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#include "pstream-util.h"
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struct pa_stream *pa_stream_new(struct pa_context *c, const char *name, const struct pa_sample_spec *ss) {
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struct pa_stream *s;
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assert(c && ss);
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s = pa_xmalloc(sizeof(struct pa_stream));
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s->ref = 1;
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s->context = c;
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s->read_callback = NULL;
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s->read_userdata = NULL;
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s->write_callback = NULL;
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s->write_userdata = NULL;
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s->state_callback = NULL;
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s->state_userdata = NULL;
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s->state = PA_STREAM_NODIRECTION;
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s->name = pa_xstrdup(name);
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s->sample_spec = *ss;
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s->channel = 0;
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s->channel_valid = 0;
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s->device_index = PA_INVALID_INDEX;
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s->requested_bytes = 0;
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s->state = PA_STREAM_DISCONNECTED;
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memset(&s->buffer_attr, 0, sizeof(s->buffer_attr));
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PA_LLIST_PREPEND(struct pa_stream, c->streams, s);
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return pa_stream_ref(s);
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}
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static void stream_free(struct pa_stream *s) {
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assert(s);
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pa_xfree(s->name);
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pa_xfree(s);
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}
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void pa_stream_unref(struct pa_stream *s) {
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assert(s && s->ref >= 1);
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if (--(s->ref) == 0)
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stream_free(s);
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}
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struct pa_stream* pa_stream_ref(struct pa_stream *s) {
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assert(s && s->ref >= 1);
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s->ref++;
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return s;
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}
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enum pa_stream_state pa_stream_get_state(struct pa_stream *s) {
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assert(s && s->ref >= 1);
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return s->state;
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}
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struct pa_context* pa_stream_get_context(struct pa_stream *s) {
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assert(s && s->ref >= 1);
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return s->context;
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}
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uint32_t pa_stream_get_index(struct pa_stream *s) {
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assert(s && s->ref >= 1);
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return s->device_index;
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}
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void pa_stream_set_state(struct pa_stream *s, enum pa_stream_state st) {
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assert(s && s->ref >= 1);
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if (s->state == st)
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return;
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pa_stream_ref(s);
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s->state = st;
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if ((st == PA_STREAM_FAILED || st == PA_STREAM_TERMINATED) && s->context) {
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if (s->channel_valid)
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pa_dynarray_put((s->direction == PA_STREAM_PLAYBACK) ? s->context->playback_streams : s->context->record_streams, s->channel, NULL);
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PA_LLIST_REMOVE(struct pa_stream, s->context->streams, s);
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pa_stream_unref(s);
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}
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if (s->state_callback)
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s->state_callback(s, s->state_userdata);
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pa_stream_unref(s);
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}
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void pa_command_stream_killed(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
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struct pa_context *c = userdata;
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struct pa_stream *s;
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uint32_t channel;
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assert(pd && (command == PA_COMMAND_PLAYBACK_STREAM_KILLED || command == PA_COMMAND_RECORD_STREAM_KILLED) && t && c);
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pa_context_ref(c);
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if (pa_tagstruct_getu32(t, &channel) < 0 ||
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!pa_tagstruct_eof(t)) {
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pa_context_fail(c, PA_ERROR_PROTOCOL);
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goto finish;
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}
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if (!(s = pa_dynarray_get(command == PA_COMMAND_PLAYBACK_STREAM_KILLED ? c->playback_streams : c->record_streams, channel)))
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goto finish;
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c->error = PA_ERROR_KILLED;
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pa_stream_set_state(s, PA_STREAM_FAILED);
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finish:
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pa_context_unref(c);
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}
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void pa_command_request(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
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struct pa_stream *s;
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struct pa_context *c = userdata;
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uint32_t bytes, channel;
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assert(pd && command == PA_COMMAND_REQUEST && t && c);
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pa_context_ref(c);
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if (pa_tagstruct_getu32(t, &channel) < 0 ||
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pa_tagstruct_getu32(t, &bytes) < 0 ||
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!pa_tagstruct_eof(t)) {
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pa_context_fail(c, PA_ERROR_PROTOCOL);
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goto finish;
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}
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if (!(s = pa_dynarray_get(c->playback_streams, channel)))
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goto finish;
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if (s->state != PA_STREAM_READY)
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goto finish;
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pa_stream_ref(s);
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s->requested_bytes += bytes;
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if (s->requested_bytes && s->write_callback)
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s->write_callback(s, s->requested_bytes, s->write_userdata);
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pa_stream_unref(s);
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finish:
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pa_context_unref(c);
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}
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void pa_create_stream_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
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struct pa_stream *s = userdata;
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assert(pd && s && s->state == PA_STREAM_CREATING);
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pa_stream_ref(s);
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if (command != PA_COMMAND_REPLY) {
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if (pa_context_handle_error(s->context, command, t) < 0)
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goto finish;
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pa_stream_set_state(s, PA_STREAM_FAILED);
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goto finish;
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}
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if (pa_tagstruct_getu32(t, &s->channel) < 0 ||
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((s->direction != PA_STREAM_UPLOAD) && pa_tagstruct_getu32(t, &s->device_index) < 0) ||
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!pa_tagstruct_eof(t)) {
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pa_context_fail(s->context, PA_ERROR_PROTOCOL);
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goto finish;
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}
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s->channel_valid = 1;
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pa_dynarray_put((s->direction == PA_STREAM_RECORD) ? s->context->record_streams : s->context->playback_streams, s->channel, s);
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pa_stream_set_state(s, PA_STREAM_READY);
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finish:
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pa_stream_unref(s);
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}
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static void create_stream(struct pa_stream *s, const char *dev, const struct pa_buffer_attr *attr) {
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struct pa_tagstruct *t;
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uint32_t tag;
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assert(s && s->ref >= 1 && s->state == PA_STREAM_DISCONNECTED);
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pa_stream_ref(s);
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if (attr)
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s->buffer_attr = *attr;
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else {
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s->buffer_attr.maxlength = DEFAULT_MAXLENGTH;
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s->buffer_attr.tlength = DEFAULT_TLENGTH;
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s->buffer_attr.prebuf = DEFAULT_PREBUF;
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s->buffer_attr.minreq = DEFAULT_MINREQ;
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s->buffer_attr.fragsize = DEFAULT_FRAGSIZE;
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}
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pa_stream_set_state(s, PA_STREAM_CREATING);
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t = pa_tagstruct_new(NULL, 0);
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assert(t);
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if (!dev) {
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if (s->direction == PA_STREAM_PLAYBACK)
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dev = getenv(ENV_DEFAULT_SINK);
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else
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dev = getenv(ENV_DEFAULT_SOURCE);
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}
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pa_tagstruct_putu32(t, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_CREATE_PLAYBACK_STREAM : PA_COMMAND_CREATE_RECORD_STREAM);
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pa_tagstruct_putu32(t, tag = s->context->ctag++);
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pa_tagstruct_puts(t, s->name);
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pa_tagstruct_put_sample_spec(t, &s->sample_spec);
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pa_tagstruct_putu32(t, PA_INVALID_INDEX);
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pa_tagstruct_puts(t, dev ? dev : "");
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pa_tagstruct_putu32(t, s->buffer_attr.maxlength);
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if (s->direction == PA_STREAM_PLAYBACK) {
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pa_tagstruct_putu32(t, s->buffer_attr.tlength);
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pa_tagstruct_putu32(t, s->buffer_attr.prebuf);
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pa_tagstruct_putu32(t, s->buffer_attr.minreq);
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} else
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pa_tagstruct_putu32(t, s->buffer_attr.fragsize);
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pa_pstream_send_tagstruct(s->context->pstream, t);
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pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s);
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pa_stream_unref(s);
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}
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void pa_stream_connect_playback(struct pa_stream *s, const char *dev, const struct pa_buffer_attr *attr) {
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assert(s && s->context->state == PA_CONTEXT_READY && s->ref >= 1);
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s->direction = PA_STREAM_PLAYBACK;
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create_stream(s, dev, attr);
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}
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void pa_stream_connect_record(struct pa_stream *s, const char *dev, const struct pa_buffer_attr *attr) {
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assert(s && s->context->state == PA_CONTEXT_READY && s->ref >= 1);
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s->direction = PA_STREAM_RECORD;
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create_stream(s, dev, attr);
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}
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void pa_stream_write(struct pa_stream *s, const void *data, size_t length, void (*free_cb)(void *p), size_t delta) {
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struct pa_memchunk chunk;
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assert(s && s->context && data && length && s->state == PA_STREAM_READY && s->ref >= 1);
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if (free_cb) {
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chunk.memblock = pa_memblock_new_user((void*) data, length, free_cb, s->context->memblock_stat);
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assert(chunk.memblock && chunk.memblock->data);
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} else {
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chunk.memblock = pa_memblock_new(length, s->context->memblock_stat);
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assert(chunk.memblock && chunk.memblock->data);
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memcpy(chunk.memblock->data, data, length);
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}
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chunk.index = 0;
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chunk.length = length;
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pa_pstream_send_memblock(s->context->pstream, s->channel, delta, &chunk);
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pa_memblock_unref(chunk.memblock);
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if (length < s->requested_bytes)
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s->requested_bytes -= length;
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else
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s->requested_bytes = 0;
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}
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size_t pa_stream_writable_size(struct pa_stream *s) {
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assert(s && s->state == PA_STREAM_READY && s->ref >= 1);
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return s->requested_bytes;
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}
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struct pa_operation * pa_stream_drain(struct pa_stream *s, void (*cb) (struct pa_stream*s, int success, void *userdata), void *userdata) {
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struct pa_operation *o;
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struct pa_tagstruct *t;
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uint32_t tag;
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assert(s && s->ref >= 1 && s->state == PA_STREAM_READY);
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o = pa_operation_new(s->context, s);
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assert(o);
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o->callback = cb;
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o->userdata = userdata;
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t = pa_tagstruct_new(NULL, 0);
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assert(t);
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pa_tagstruct_putu32(t, PA_COMMAND_DRAIN_PLAYBACK_STREAM);
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pa_tagstruct_putu32(t, tag = s->context->ctag++);
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pa_tagstruct_putu32(t, s->channel);
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pa_pstream_send_tagstruct(s->context->pstream, t);
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pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, o);
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return pa_operation_ref(o);
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}
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static void stream_get_latency_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
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struct pa_operation *o = userdata;
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struct pa_latency_info i, *p = NULL;
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assert(pd && o && o->stream && o->context);
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if (command != PA_COMMAND_REPLY) {
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if (pa_context_handle_error(o->context, command, t) < 0)
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goto finish;
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} else if (pa_tagstruct_getu32(t, &i.buffer_usec) < 0 ||
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pa_tagstruct_getu32(t, &i.sink_usec) < 0 ||
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pa_tagstruct_get_boolean(t, &i.playing) < 0 ||
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pa_tagstruct_getu32(t, &i.queue_length) < 0 ||
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!pa_tagstruct_eof(t)) {
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pa_context_fail(o->context, PA_ERROR_PROTOCOL);
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goto finish;
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} else
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p = &i;
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if (o->callback) {
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void (*cb)(struct pa_stream *s, const struct pa_latency_info *i, void *userdata) = o->callback;
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cb(o->stream, p, o->userdata);
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}
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finish:
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pa_operation_done(o);
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pa_operation_unref(o);
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}
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struct pa_operation* pa_stream_get_latency(struct pa_stream *s, void (*cb)(struct pa_stream *p, const struct pa_latency_info*i, void *userdata), void *userdata) {
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uint32_t tag;
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struct pa_operation *o;
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struct pa_tagstruct *t;
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o = pa_operation_new(s->context, s);
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assert(o);
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o->callback = cb;
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o->userdata = userdata;
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t = pa_tagstruct_new(NULL, 0);
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assert(t);
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pa_tagstruct_putu32(t, PA_COMMAND_GET_PLAYBACK_LATENCY);
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pa_tagstruct_putu32(t, tag = s->context->ctag++);
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pa_tagstruct_putu32(t, s->channel);
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pa_pstream_send_tagstruct(s->context->pstream, t);
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pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_get_latency_callback, o);
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return pa_operation_ref(o);
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}
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void pa_stream_disconnect_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
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struct pa_stream *s = userdata;
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assert(pd && s && s->ref >= 1);
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pa_stream_ref(s);
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if (command != PA_COMMAND_REPLY) {
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if (pa_context_handle_error(s->context, command, t) < 0)
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goto finish;
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pa_stream_set_state(s, PA_STREAM_FAILED);
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goto finish;
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} else if (!pa_tagstruct_eof(t)) {
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pa_context_fail(s->context, PA_ERROR_PROTOCOL);
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goto finish;
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}
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pa_stream_set_state(s, PA_STREAM_TERMINATED);
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finish:
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pa_stream_unref(s);
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}
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void pa_stream_disconnect(struct pa_stream *s) {
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struct pa_tagstruct *t;
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uint32_t tag;
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assert(s && s->ref >= 1);
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if (!s->channel_valid || !s->context->state == PA_CONTEXT_READY)
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return;
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pa_stream_ref(s);
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t = pa_tagstruct_new(NULL, 0);
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assert(t);
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pa_tagstruct_putu32(t, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_DELETE_PLAYBACK_STREAM :
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(s->direction == PA_STREAM_RECORD ? PA_COMMAND_DELETE_RECORD_STREAM : PA_COMMAND_DELETE_UPLOAD_STREAM));
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pa_tagstruct_putu32(t, tag = s->context->ctag++);
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pa_tagstruct_putu32(t, s->channel);
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pa_pstream_send_tagstruct(s->context->pstream, t);
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pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_disconnect_callback, s);
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pa_stream_unref(s);
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}
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void pa_stream_set_read_callback(struct pa_stream *s, void (*cb)(struct pa_stream *p, const void*data, size_t length, void *userdata), void *userdata) {
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assert(s && s->ref >= 1);
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s->read_callback = cb;
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s->read_userdata = userdata;
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}
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void pa_stream_set_write_callback(struct pa_stream *s, void (*cb)(struct pa_stream *p, size_t length, void *userdata), void *userdata) {
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assert(s && s->ref >= 1);
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s->write_callback = cb;
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s->write_userdata = userdata;
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}
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void pa_stream_set_state_callback(struct pa_stream *s, void (*cb)(struct pa_stream *s, void *userdata), void *userdata) {
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assert(s && s->ref >= 1);
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s->state_callback = cb;
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s->state_userdata = userdata;
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}
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void pa_stream_simple_ack_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
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struct pa_operation *o = userdata;
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int success = 1;
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assert(pd && o && o->context && o->ref >= 1);
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if (command != PA_COMMAND_REPLY) {
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if (pa_context_handle_error(o->context, command, t) < 0)
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goto finish;
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success = 0;
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} else if (!pa_tagstruct_eof(t)) {
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pa_context_fail(o->context, PA_ERROR_PROTOCOL);
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goto finish;
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}
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if (o->callback) {
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void (*cb)(struct pa_stream *s, int success, void *userdata) = o->callback;
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cb(o->stream, success, o->userdata);
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}
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finish:
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pa_operation_done(o);
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pa_operation_unref(o);
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}
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struct pa_operation* pa_stream_cork(struct pa_stream *s, int b, void (*cb) (struct pa_stream*s, int success, void *userdata), void *userdata) {
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struct pa_operation *o;
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struct pa_tagstruct *t;
|
|
uint32_t tag;
|
|
assert(s && s->ref >= 1 && s->state == PA_STREAM_READY);
|
|
|
|
o = pa_operation_new(s->context, s);
|
|
assert(o);
|
|
o->callback = cb;
|
|
o->userdata = userdata;
|
|
|
|
t = pa_tagstruct_new(NULL, 0);
|
|
assert(t);
|
|
pa_tagstruct_putu32(t, PA_COMMAND_CORK_PLAYBACK_STREAM);
|
|
pa_tagstruct_putu32(t, tag = s->context->ctag++);
|
|
pa_tagstruct_putu32(t, s->channel);
|
|
pa_tagstruct_putu32(t, !!b);
|
|
pa_pstream_send_tagstruct(s->context->pstream, t);
|
|
pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, o);
|
|
|
|
return pa_operation_ref(o);
|
|
}
|
|
|
|
struct pa_operation* pa_stream_send_simple_command(struct pa_stream *s, uint32_t command, void (*cb)(struct pa_stream *s, int success, void *userdata), void *userdata) {
|
|
struct pa_tagstruct *t;
|
|
struct pa_operation *o;
|
|
uint32_t tag;
|
|
assert(s && s->ref >= 1 && s->state == PA_STREAM_READY);
|
|
|
|
o = pa_operation_new(s->context, s);
|
|
o->callback = cb;
|
|
o->userdata = userdata;
|
|
|
|
t = pa_tagstruct_new(NULL, 0);
|
|
pa_tagstruct_putu32(t, command);
|
|
pa_tagstruct_putu32(t, tag = s->context->ctag++);
|
|
pa_tagstruct_putu32(t, s->channel);
|
|
pa_pstream_send_tagstruct(s->context->pstream, t);
|
|
pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, o);
|
|
|
|
return pa_operation_ref(o);
|
|
}
|
|
|
|
|
|
struct pa_operation* pa_stream_flush(struct pa_stream *s, void (*cb)(struct pa_stream *s, int success, void *userdata), void *userdata) {
|
|
return pa_stream_send_simple_command(s, PA_COMMAND_FLUSH_PLAYBACK_STREAM, cb, userdata);
|
|
}
|
|
|
|
struct pa_operation* pa_stream_trigger(struct pa_stream *s, void (*cb)(struct pa_stream *s, int success, void *userdata), void *userdata) {
|
|
return pa_stream_send_simple_command(s, PA_COMMAND_TRIGGER_PLAYBACK_STREAM, cb, userdata);
|
|
}
|