mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-03 09:01:50 -05:00
db6dc13e68
* convert some of the tagstruct uses to this new API git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@466 fefdeb5f-60dc-0310-8127-8f9354f1896f
807 lines
25 KiB
C
807 lines
25 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 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 <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include <string.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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#include "util.h"
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#include "log.h"
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#define LATENCY_IPOL_INTERVAL_USEC (10000L)
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pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec *ss, const pa_channel_map *map) {
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pa_stream *s;
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assert(c);
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assert(ss);
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if (!pa_sample_spec_valid(ss))
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return NULL;
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if (map && !pa_channel_map_valid(map))
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return NULL;
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s = pa_xnew(pa_stream, 1);
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s->ref = 1;
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s->context = c;
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s->mainloop = c->mainloop;
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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->direction = PA_STREAM_NODIRECTION;
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s->name = pa_xstrdup(name);
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s->sample_spec = *ss;
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if (map)
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s->channel_map = *map;
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else
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pa_channel_map_init_auto(&s->channel_map, ss->channels);
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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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s->mcalign = pa_mcalign_new(pa_frame_size(ss), c->memblock_stat);
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s->counter = 0;
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s->previous_time = 0;
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s->previous_ipol_time = 0;
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s->corked = 0;
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s->interpolate = 0;
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s->ipol_usec = 0;
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memset(&s->ipol_timestamp, 0, sizeof(s->ipol_timestamp));
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s->ipol_event = NULL;
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s->ipol_requested = 0;
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PA_LLIST_PREPEND(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(pa_stream *s) {
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assert(s);
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if (s->ipol_event) {
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assert(s->mainloop);
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s->mainloop->time_free(s->ipol_event);
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}
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pa_mcalign_free(s->mcalign);
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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(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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pa_stream* pa_stream_ref(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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pa_stream_state_t pa_stream_get_state(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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pa_context* pa_stream_get_context(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(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(pa_stream *s, pa_stream_state_t 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(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(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
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pa_context *c = userdata;
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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(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
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pa_stream *s;
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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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static void ipol_callback(pa_mainloop_api *m, pa_time_event *e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
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struct timeval tv2;
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pa_stream *s = userdata;
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pa_stream_ref(s);
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/* pa_log("requesting new ipol data\n"); */
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if (s->state == PA_STREAM_READY && !s->ipol_requested) {
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pa_operation_unref(pa_stream_get_latency_info(s, NULL, NULL));
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s->ipol_requested = 1;
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}
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pa_gettimeofday(&tv2);
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pa_timeval_add(&tv2, LATENCY_IPOL_INTERVAL_USEC);
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m->time_restart(e, &tv2);
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pa_stream_unref(s);
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}
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void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
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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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((s->direction != PA_STREAM_RECORD) && pa_tagstruct_getu32(t, &s->requested_bytes) < 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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if (s->interpolate) {
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struct timeval tv;
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pa_operation_unref(pa_stream_get_latency_info(s, NULL, NULL));
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pa_gettimeofday(&tv);
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tv.tv_usec += LATENCY_IPOL_INTERVAL_USEC; /* every 100 ms */
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assert(!s->ipol_event);
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s->ipol_event = s->mainloop->time_new(s->mainloop, &tv, &ipol_callback, s);
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}
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if (s->requested_bytes && s->ref > 1 && s->write_callback)
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s->write_callback(s, s->requested_bytes, s->write_userdata);
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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(pa_stream *s, const char *dev, const pa_buffer_attr *attr, pa_stream_flags_t flags, const pa_cvolume *volume) {
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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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s->interpolate = !!(flags & PA_STREAM_INTERPOLATE_LATENCY);
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pa_stream_trash_ipol(s);
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if (attr)
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s->buffer_attr = *attr;
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else {
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/* half a second */
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s->buffer_attr.tlength = pa_bytes_per_second(&s->sample_spec)/2;
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s->buffer_attr.maxlength = (s->buffer_attr.tlength*3)/2;
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s->buffer_attr.minreq = s->buffer_attr.tlength/100;
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s->buffer_attr.prebuf = s->buffer_attr.tlength - s->buffer_attr.minreq;
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s->buffer_attr.fragsize = s->buffer_attr.tlength/100;
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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 = s->context->conf->default_sink;
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else
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dev = s->context->conf->default_source;
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}
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pa_tagstruct_put(t,
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PA_TAG_U32, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_CREATE_PLAYBACK_STREAM : PA_COMMAND_CREATE_RECORD_STREAM,
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PA_TAG_U32, tag = s->context->ctag++,
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PA_TAG_STRING, s->name,
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PA_TAG_SAMPLE_SPEC, &s->sample_spec,
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PA_TAG_CHANNEL_MAP, &s->channel_map,
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PA_TAG_U32, PA_INVALID_INDEX,
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PA_TAG_STRING, dev,
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PA_TAG_U32, s->buffer_attr.maxlength,
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PA_TAG_BOOLEAN, !!(flags & PA_STREAM_START_CORKED),
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PA_TAG_INVALID);
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if (s->direction == PA_STREAM_PLAYBACK) {
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pa_cvolume cv;
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pa_tagstruct_put(t,
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PA_TAG_U32, s->buffer_attr.tlength,
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PA_TAG_U32, s->buffer_attr.prebuf,
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PA_TAG_U32, s->buffer_attr.minreq,
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PA_TAG_INVALID);
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if (!volume) {
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pa_cvolume_reset(&cv, s->sample_spec.channels);
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volume = &cv;
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}
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pa_tagstruct_put_cvolume(t, volume);
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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(pa_stream *s, const char *dev, const pa_buffer_attr *attr, pa_stream_flags_t flags, pa_cvolume *volume) {
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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, flags, volume);
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}
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void pa_stream_connect_record(pa_stream *s, const char *dev, const pa_buffer_attr *attr, pa_stream_flags_t flags) {
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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, flags, 0);
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}
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void pa_stream_write(pa_stream *s, const void *data, size_t length, void (*free_cb)(void *p), size_t delta) {
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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, 1, 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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s->counter += length;
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}
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size_t pa_stream_writable_size(pa_stream *s) {
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assert(s && s->ref >= 1);
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return s->state == PA_STREAM_READY ? s->requested_bytes : 0;
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}
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pa_operation * pa_stream_drain(pa_stream *s, void (*cb) (pa_stream*s, int success, void *userdata), void *userdata) {
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pa_operation *o;
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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 = (pa_operation_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_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
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pa_operation *o = userdata;
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pa_latency_info i, *p = NULL;
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struct timeval local, remote, now;
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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_get_usec(t, &i.buffer_usec) < 0 ||
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pa_tagstruct_get_usec(t, &i.sink_usec) < 0 ||
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pa_tagstruct_get_usec(t, &i.source_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_get_timeval(t, &local) < 0 ||
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pa_tagstruct_get_timeval(t, &remote) < 0 ||
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pa_tagstruct_getu64(t, &i.counter) < 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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pa_gettimeofday(&now);
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if (pa_timeval_cmp(&local, &remote) <= 0 && pa_timeval_cmp(&remote, &now) <= 0) {
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/* local and remote seem to have synchronized clocks */
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if (o->stream->direction == PA_STREAM_PLAYBACK)
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i.transport_usec = pa_timeval_diff(&remote, &local);
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else
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i.transport_usec = pa_timeval_diff(&now, &remote);
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i.synchronized_clocks = 1;
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i.timestamp = remote;
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} else {
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/* clocks are not synchronized, let's estimate latency then */
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i.transport_usec = pa_timeval_diff(&now, &local)/2;
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i.synchronized_clocks = 0;
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i.timestamp = local;
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pa_timeval_add(&i.timestamp, i.transport_usec);
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}
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if (o->stream->interpolate) {
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/* pa_log("new interpol data\n"); */
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o->stream->ipol_timestamp = i.timestamp;
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o->stream->ipol_usec = pa_stream_get_time(o->stream, &i);
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o->stream->ipol_requested = 0;
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}
|
|
|
|
p = &i;
|
|
}
|
|
|
|
if (o->callback) {
|
|
void (*cb)(pa_stream *s, const pa_latency_info *_i, void *_userdata) = (void (*)(pa_stream *s, const pa_latency_info *_i, void *_userdata)) o->callback;
|
|
cb(o->stream, p, o->userdata);
|
|
}
|
|
|
|
finish:
|
|
pa_operation_done(o);
|
|
pa_operation_unref(o);
|
|
}
|
|
|
|
pa_operation* pa_stream_get_latency_info(pa_stream *s, void (*cb)(pa_stream *p, const pa_latency_info*i, void *userdata), void *userdata) {
|
|
uint32_t tag;
|
|
pa_operation *o;
|
|
pa_tagstruct *t;
|
|
struct timeval now;
|
|
assert(s && s->direction != PA_STREAM_UPLOAD);
|
|
|
|
o = pa_operation_new(s->context, s);
|
|
assert(o);
|
|
o->callback = (pa_operation_callback) cb;
|
|
o->userdata = userdata;
|
|
|
|
t = pa_tagstruct_new(NULL, 0);
|
|
assert(t);
|
|
pa_tagstruct_putu32(t, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_GET_PLAYBACK_LATENCY : PA_COMMAND_GET_RECORD_LATENCY);
|
|
pa_tagstruct_putu32(t, tag = s->context->ctag++);
|
|
pa_tagstruct_putu32(t, s->channel);
|
|
|
|
pa_gettimeofday(&now);
|
|
pa_tagstruct_put_timeval(t, &now);
|
|
pa_tagstruct_putu64(t, s->counter);
|
|
|
|
pa_pstream_send_tagstruct(s->context->pstream, t);
|
|
pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_get_latency_info_callback, o);
|
|
|
|
return pa_operation_ref(o);
|
|
}
|
|
|
|
void pa_stream_disconnect_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
|
|
pa_stream *s = userdata;
|
|
assert(pd && s && s->ref >= 1);
|
|
|
|
pa_stream_ref(s);
|
|
|
|
if (command != PA_COMMAND_REPLY) {
|
|
if (pa_context_handle_error(s->context, command, t) < 0)
|
|
goto finish;
|
|
|
|
pa_stream_set_state(s, PA_STREAM_FAILED);
|
|
goto finish;
|
|
} else if (!pa_tagstruct_eof(t)) {
|
|
pa_context_fail(s->context, PA_ERROR_PROTOCOL);
|
|
goto finish;
|
|
}
|
|
|
|
pa_stream_set_state(s, PA_STREAM_TERMINATED);
|
|
|
|
finish:
|
|
pa_stream_unref(s);
|
|
}
|
|
|
|
void pa_stream_disconnect(pa_stream *s) {
|
|
pa_tagstruct *t;
|
|
uint32_t tag;
|
|
assert(s && s->ref >= 1);
|
|
|
|
if (!s->channel_valid || !s->context->state == PA_CONTEXT_READY)
|
|
return;
|
|
|
|
pa_stream_ref(s);
|
|
|
|
t = pa_tagstruct_new(NULL, 0);
|
|
assert(t);
|
|
|
|
pa_tagstruct_putu32(t, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_DELETE_PLAYBACK_STREAM :
|
|
(s->direction == PA_STREAM_RECORD ? PA_COMMAND_DELETE_RECORD_STREAM : PA_COMMAND_DELETE_UPLOAD_STREAM));
|
|
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_disconnect_callback, s);
|
|
|
|
pa_stream_unref(s);
|
|
}
|
|
|
|
void pa_stream_set_read_callback(pa_stream *s, void (*cb)(pa_stream *p, const void*data, size_t length, void *userdata), void *userdata) {
|
|
assert(s && s->ref >= 1);
|
|
s->read_callback = cb;
|
|
s->read_userdata = userdata;
|
|
}
|
|
|
|
void pa_stream_set_write_callback(pa_stream *s, void (*cb)(pa_stream *p, size_t length, void *userdata), void *userdata) {
|
|
assert(s && s->ref >= 1);
|
|
s->write_callback = cb;
|
|
s->write_userdata = userdata;
|
|
}
|
|
|
|
void pa_stream_set_state_callback(pa_stream *s, void (*cb)(pa_stream *s, void *userdata), void *userdata) {
|
|
assert(s && s->ref >= 1);
|
|
s->state_callback = cb;
|
|
s->state_userdata = userdata;
|
|
}
|
|
|
|
void pa_stream_simple_ack_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
|
|
pa_operation *o = userdata;
|
|
int success = 1;
|
|
assert(pd && o && o->context && o->ref >= 1);
|
|
|
|
if (command != PA_COMMAND_REPLY) {
|
|
if (pa_context_handle_error(o->context, command, t) < 0)
|
|
goto finish;
|
|
|
|
success = 0;
|
|
} else if (!pa_tagstruct_eof(t)) {
|
|
pa_context_fail(o->context, PA_ERROR_PROTOCOL);
|
|
goto finish;
|
|
}
|
|
|
|
if (o->callback) {
|
|
void (*cb)(pa_stream *s, int _success, void *_userdata) = (void (*)(pa_stream *s, int _success, void *_userdata)) o->callback;
|
|
cb(o->stream, success, o->userdata);
|
|
}
|
|
|
|
finish:
|
|
pa_operation_done(o);
|
|
pa_operation_unref(o);
|
|
}
|
|
|
|
pa_operation* pa_stream_cork(pa_stream *s, int b, void (*cb) (pa_stream*s, int success, void *userdata), void *userdata) {
|
|
pa_operation *o;
|
|
pa_tagstruct *t;
|
|
uint32_t tag;
|
|
assert(s && s->ref >= 1 && s->state == PA_STREAM_READY);
|
|
|
|
if (s->interpolate) {
|
|
if (!s->corked && b)
|
|
/* Pausing */
|
|
s->ipol_usec = pa_stream_get_interpolated_time(s);
|
|
else if (s->corked && !b)
|
|
/* Unpausing */
|
|
pa_gettimeofday(&s->ipol_timestamp);
|
|
}
|
|
|
|
s->corked = b;
|
|
|
|
o = pa_operation_new(s->context, s);
|
|
assert(o);
|
|
o->callback = (pa_operation_callback) cb;
|
|
o->userdata = userdata;
|
|
|
|
t = pa_tagstruct_new(NULL, 0);
|
|
assert(t);
|
|
pa_tagstruct_putu32(t, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_CORK_PLAYBACK_STREAM : PA_COMMAND_CORK_RECORD_STREAM);
|
|
pa_tagstruct_putu32(t, tag = s->context->ctag++);
|
|
pa_tagstruct_putu32(t, s->channel);
|
|
pa_tagstruct_put_boolean(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);
|
|
|
|
pa_operation_unref(pa_stream_get_latency_info(s, NULL, NULL));
|
|
|
|
return pa_operation_ref(o);
|
|
}
|
|
|
|
static pa_operation* stream_send_simple_command(pa_stream *s, uint32_t command, void (*cb)(pa_stream *s, int success, void *userdata), void *userdata) {
|
|
pa_tagstruct *t;
|
|
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 = (pa_operation_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);
|
|
}
|
|
|
|
pa_operation* pa_stream_flush(pa_stream *s, void (*cb)(pa_stream *s, int success, void *userdata), void *userdata) {
|
|
pa_operation *o;
|
|
o = stream_send_simple_command(s, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_FLUSH_PLAYBACK_STREAM : PA_COMMAND_FLUSH_RECORD_STREAM, cb, userdata);
|
|
pa_operation_unref(pa_stream_get_latency_info(s, NULL, NULL));
|
|
return o;
|
|
}
|
|
|
|
pa_operation* pa_stream_prebuf(pa_stream *s, void (*cb)(pa_stream *s, int success, void *userdata), void *userdata) {
|
|
pa_operation *o;
|
|
o = stream_send_simple_command(s, PA_COMMAND_PREBUF_PLAYBACK_STREAM, cb, userdata);
|
|
pa_operation_unref(pa_stream_get_latency_info(s, NULL, NULL));
|
|
return o;
|
|
}
|
|
|
|
pa_operation* pa_stream_trigger(pa_stream *s, void (*cb)(pa_stream *s, int success, void *userdata), void *userdata) {
|
|
pa_operation *o;
|
|
o = stream_send_simple_command(s, PA_COMMAND_TRIGGER_PLAYBACK_STREAM, cb, userdata);
|
|
pa_operation_unref(pa_stream_get_latency_info(s, NULL, NULL));
|
|
return o;
|
|
}
|
|
|
|
pa_operation* pa_stream_set_name(pa_stream *s, const char *name, void(*cb)(pa_stream*c, int success, void *userdata), void *userdata) {
|
|
pa_operation *o;
|
|
pa_tagstruct *t;
|
|
uint32_t tag;
|
|
assert(s && s->ref >= 1 && s->state == PA_STREAM_READY && name && s->direction != PA_STREAM_UPLOAD);
|
|
|
|
o = pa_operation_new(s->context, s);
|
|
assert(o);
|
|
o->callback = (pa_operation_callback) cb;
|
|
o->userdata = userdata;
|
|
|
|
t = pa_tagstruct_new(NULL, 0);
|
|
assert(t);
|
|
pa_tagstruct_putu32(t, s->direction == PA_STREAM_RECORD ? PA_COMMAND_SET_RECORD_STREAM_NAME : PA_COMMAND_SET_PLAYBACK_STREAM_NAME);
|
|
pa_tagstruct_putu32(t, tag = s->context->ctag++);
|
|
pa_tagstruct_putu32(t, s->channel);
|
|
pa_tagstruct_puts(t, name);
|
|
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);
|
|
}
|
|
|
|
uint64_t pa_stream_get_counter(pa_stream *s) {
|
|
assert(s);
|
|
return s->counter;
|
|
}
|
|
|
|
pa_usec_t pa_stream_get_time(pa_stream *s, const pa_latency_info *i) {
|
|
pa_usec_t usec;
|
|
assert(s);
|
|
|
|
usec = pa_bytes_to_usec(i->counter, &s->sample_spec);
|
|
|
|
if (i) {
|
|
if (s->direction == PA_STREAM_PLAYBACK) {
|
|
pa_usec_t latency = i->transport_usec + i->buffer_usec + i->sink_usec;
|
|
if (usec < latency)
|
|
usec = 0;
|
|
else
|
|
usec -= latency;
|
|
|
|
} else if (s->direction == PA_STREAM_RECORD) {
|
|
usec += i->source_usec + i->buffer_usec + i->transport_usec;
|
|
|
|
if (usec > i->sink_usec)
|
|
usec -= i->sink_usec;
|
|
else
|
|
usec = 0;
|
|
}
|
|
}
|
|
|
|
if (usec < s->previous_time)
|
|
usec = s->previous_time;
|
|
|
|
s->previous_time = usec;
|
|
|
|
return usec;
|
|
}
|
|
|
|
static pa_usec_t time_counter_diff(pa_stream *s, pa_usec_t t, pa_usec_t c, int *negative) {
|
|
assert(s);
|
|
|
|
if (negative)
|
|
*negative = 0;
|
|
|
|
if (c < t) {
|
|
if (s->direction == PA_STREAM_RECORD) {
|
|
if (negative)
|
|
*negative = 1;
|
|
|
|
return t-c;
|
|
} else
|
|
return 0;
|
|
} else
|
|
return c-t;
|
|
}
|
|
|
|
pa_usec_t pa_stream_get_latency(pa_stream *s, const pa_latency_info *i, int *negative) {
|
|
pa_usec_t t, c;
|
|
assert(s && i);
|
|
|
|
t = pa_stream_get_time(s, i);
|
|
c = pa_bytes_to_usec(s->counter, &s->sample_spec);
|
|
|
|
return time_counter_diff(s, t, c, negative);
|
|
}
|
|
|
|
const pa_sample_spec* pa_stream_get_sample_spec(pa_stream *s) {
|
|
assert(s);
|
|
return &s->sample_spec;
|
|
}
|
|
|
|
void pa_stream_trash_ipol(pa_stream *s) {
|
|
assert(s);
|
|
|
|
if (!s->interpolate)
|
|
return;
|
|
|
|
memset(&s->ipol_timestamp, 0, sizeof(s->ipol_timestamp));
|
|
s->ipol_usec = 0;
|
|
}
|
|
|
|
pa_usec_t pa_stream_get_interpolated_time(pa_stream *s) {
|
|
pa_usec_t usec;
|
|
assert(s && s->interpolate);
|
|
|
|
if (s->corked)
|
|
usec = s->ipol_usec;
|
|
else {
|
|
if (s->ipol_timestamp.tv_sec == 0)
|
|
usec = 0;
|
|
else
|
|
usec = s->ipol_usec + pa_timeval_age(&s->ipol_timestamp);
|
|
}
|
|
|
|
if (usec < s->previous_ipol_time)
|
|
usec = s->previous_ipol_time;
|
|
|
|
s->previous_ipol_time = usec;
|
|
|
|
return usec;
|
|
}
|
|
|
|
pa_usec_t pa_stream_get_interpolated_latency(pa_stream *s, int *negative) {
|
|
pa_usec_t t, c;
|
|
assert(s && s->interpolate);
|
|
|
|
t = pa_stream_get_interpolated_time(s);
|
|
c = pa_bytes_to_usec(s->counter, &s->sample_spec);
|
|
return time_counter_diff(s, t, c, negative);
|
|
}
|