mirror of
https://gitlab.freedesktop.org/pipewire/pipewire
synced 2024-09-20 00:11:31 +00:00
84e210ded9
Both fakesink and fakesrc nodes don't support it.
861 lines
20 KiB
C
861 lines
20 KiB
C
/* Spa
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*
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* Copyright © 2018 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <errno.h>
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#include <stddef.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <spa/support/plugin.h>
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#include <spa/support/log.h>
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#include <spa/support/loop.h>
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#include <spa/utils/list.h>
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#include <spa/utils/string.h>
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#include <spa/node/node.h>
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#include <spa/node/utils.h>
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#include <spa/node/io.h>
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#include <spa/param/param.h>
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#include <spa/param/format.h>
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#include <spa/pod/parser.h>
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#include <spa/pod/filter.h>
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#define NAME "fakesrc"
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struct props {
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bool live;
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uint32_t pattern;
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};
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#define MAX_BUFFERS 16
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#define MAX_PORTS 1
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struct buffer {
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uint32_t id;
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struct spa_buffer *outbuf;
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bool outstanding;
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struct spa_meta_header *h;
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struct spa_list link;
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};
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struct port {
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uint64_t info_all;
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struct spa_port_info info;
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struct spa_param_info params[5];
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struct spa_io_buffers *io;
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bool have_format;
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uint8_t format_buffer[1024];
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struct buffer buffers[MAX_BUFFERS];
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uint32_t n_buffers;
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struct spa_list empty;
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};
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struct impl {
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struct spa_handle handle;
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struct spa_node node;
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struct spa_log *log;
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struct spa_loop *data_loop;
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struct spa_system *data_system;
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uint64_t info_all;
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struct spa_node_info info;
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struct spa_param_info params[1];
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struct props props;
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struct spa_hook_list hooks;
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struct spa_callbacks callbacks;
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struct spa_source timer_source;
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struct itimerspec timerspec;
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bool started;
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uint64_t start_time;
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uint64_t elapsed_time;
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uint64_t buffer_count;
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bool underrun;
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struct port port;
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};
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#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) < MAX_PORTS)
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#define DEFAULT_LIVE false
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#define DEFAULT_PATTERN 0
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static void reset_props(struct impl *this, struct props *props)
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{
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props->live = DEFAULT_LIVE;
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props->pattern = DEFAULT_PATTERN;
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}
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static int impl_node_enum_params(void *object, int seq,
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uint32_t id, uint32_t start, uint32_t num,
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const struct spa_pod *filter)
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{
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struct impl *this = object;
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struct spa_pod_builder b = { 0 };
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uint8_t buffer[1024];
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struct spa_pod *param;
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struct spa_result_node_params result;
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uint32_t count = 0;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_return_val_if_fail(num != 0, -EINVAL);
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result.id = id;
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result.next = start;
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next:
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result.index = result.next++;
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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switch (id) {
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case SPA_PARAM_Props:
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{
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struct props *p = &this->props;
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if (result.index > 0)
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return 0;
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_Props, id,
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SPA_PROP_live, SPA_POD_Bool(p->live),
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SPA_PROP_patternType, SPA_POD_CHOICE_ENUM_Id(2, p->pattern, p->pattern));
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break;
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}
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default:
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return -ENOENT;
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}
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if (spa_pod_filter(&b, &result.param, param, filter) < 0)
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goto next;
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spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
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if (++count != num)
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goto next;
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return 0;
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}
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static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
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{
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return -ENOTSUP;
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}
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static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
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const struct spa_pod *param)
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{
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struct impl *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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switch (id) {
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case SPA_PARAM_Props:
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{
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struct props *p = &this->props;
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if (param == NULL) {
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reset_props(this, p);
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return 0;
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}
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spa_pod_parse_object(param,
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SPA_TYPE_OBJECT_Props, NULL,
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SPA_PROP_live, SPA_POD_OPT_Bool(&p->live),
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SPA_PROP_patternType, SPA_POD_OPT_Id(&p->pattern));
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if (p->live)
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this->info.flags |= SPA_PORT_FLAG_LIVE;
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else
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this->info.flags &= ~SPA_PORT_FLAG_LIVE;
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break;
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}
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default:
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return -ENOENT;
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}
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return 0;
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}
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static int fill_buffer(struct impl *this, struct buffer *b)
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{
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return 0;
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}
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static void set_timer(struct impl *this, bool enabled)
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{
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if (this->callbacks.funcs || this->props.live) {
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if (enabled) {
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if (this->props.live) {
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uint64_t next_time = this->start_time + this->elapsed_time;
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this->timerspec.it_value.tv_sec = next_time / SPA_NSEC_PER_SEC;
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this->timerspec.it_value.tv_nsec = next_time % SPA_NSEC_PER_SEC;
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} else {
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this->timerspec.it_value.tv_sec = 0;
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this->timerspec.it_value.tv_nsec = 1;
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}
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} else {
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this->timerspec.it_value.tv_sec = 0;
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this->timerspec.it_value.tv_nsec = 0;
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}
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spa_system_timerfd_settime(this->data_system,
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this->timer_source.fd, SPA_FD_TIMER_ABSTIME, &this->timerspec, NULL);
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}
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}
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static inline void read_timer(struct impl *this)
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{
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uint64_t expirations;
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if (this->callbacks.funcs || this->props.live) {
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if (spa_system_timerfd_read(this->data_system,
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this->timer_source.fd, &expirations) < 0)
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perror("read timerfd");
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}
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}
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static int make_buffer(struct impl *this)
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{
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struct buffer *b;
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struct port *port = &this->port;
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struct spa_io_buffers *io = port->io;
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int n_bytes;
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read_timer(this);
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if (spa_list_is_empty(&port->empty)) {
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set_timer(this, false);
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this->underrun = true;
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spa_log_error(this->log, NAME " %p: out of buffers", this);
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return -EPIPE;
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}
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b = spa_list_first(&port->empty, struct buffer, link);
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spa_list_remove(&b->link);
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b->outstanding = true;
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n_bytes = b->outbuf->datas[0].maxsize;
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spa_log_trace(this->log, NAME " %p: dequeue buffer %d", this, b->id);
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fill_buffer(this, b);
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b->outbuf->datas[0].chunk->offset = 0;
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b->outbuf->datas[0].chunk->size = n_bytes;
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b->outbuf->datas[0].chunk->stride = n_bytes;
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if (b->h) {
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b->h->seq = this->buffer_count;
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b->h->pts = this->start_time + this->elapsed_time;
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b->h->dts_offset = 0;
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}
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this->buffer_count++;
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this->elapsed_time = this->buffer_count;
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set_timer(this, true);
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io->buffer_id = b->id;
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io->status = SPA_STATUS_HAVE_DATA;
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return SPA_STATUS_HAVE_DATA;
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}
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static void on_output(struct spa_source *source)
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{
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struct impl *this = source->data;
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int res;
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res = make_buffer(this);
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if (res == SPA_STATUS_HAVE_DATA && this->callbacks.funcs)
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spa_node_call_ready(&this->callbacks, res);
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}
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static int impl_node_send_command(void *object, const struct spa_command *command)
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{
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struct impl *this = object;
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struct port *port;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_return_val_if_fail(command != NULL, -EINVAL);
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port = &this->port;
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switch (SPA_NODE_COMMAND_ID(command)) {
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case SPA_NODE_COMMAND_Start:
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{
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struct timespec now;
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if (!port->have_format)
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return -EIO;
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if (port->n_buffers == 0)
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return -EIO;
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if (this->started)
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return 0;
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clock_gettime(CLOCK_MONOTONIC, &now);
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if (this->props.live)
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this->start_time = SPA_TIMESPEC_TO_NSEC(&now);
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else
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this->start_time = 0;
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this->buffer_count = 0;
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this->elapsed_time = 0;
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this->started = true;
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set_timer(this, true);
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break;
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}
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case SPA_NODE_COMMAND_Pause:
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if (!port->have_format)
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return -EIO;
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if (port->n_buffers == 0)
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return -EIO;
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if (!this->started)
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return 0;
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this->started = false;
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set_timer(this, false);
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break;
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default:
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return -ENOTSUP;
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}
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return 0;
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}
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static void emit_node_info(struct impl *this, bool full)
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{
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uint64_t old = full ? this->info.change_mask : 0;
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if (full)
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this->info.change_mask = this->info_all;
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if (this->info.change_mask) {
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spa_node_emit_info(&this->hooks, &this->info);
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this->info.change_mask = old;
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}
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}
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static void emit_port_info(struct impl *this, struct port *port, bool full)
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{
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uint64_t old = full ? port->info.change_mask : 0;
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if (full)
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port->info.change_mask = port->info_all;
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if (port->info.change_mask) {
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spa_node_emit_port_info(&this->hooks,
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SPA_DIRECTION_OUTPUT, 0, &port->info);
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port->info.change_mask = old;
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}
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}
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static int impl_node_add_listener(void *object,
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struct spa_hook *listener,
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const struct spa_node_events *events,
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void *data)
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{
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struct impl *this = object;
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struct spa_hook_list save;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
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emit_node_info(this, true);
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emit_port_info(this, &this->port, true);
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spa_hook_list_join(&this->hooks, &save);
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return 0;
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}
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static int
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impl_node_set_callbacks(void *object,
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const struct spa_node_callbacks *callbacks,
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void *data)
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{
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struct impl *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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if (this->data_loop == NULL && callbacks != NULL) {
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spa_log_error(this->log, "a data_loop is needed for async operation");
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return -EINVAL;
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}
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this->callbacks = SPA_CALLBACKS_INIT(callbacks, data);
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return 0;
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}
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static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id,
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const struct spa_dict *props)
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{
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return -ENOTSUP;
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}
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static int
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impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id)
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{
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return -ENOTSUP;
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}
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static int port_enum_formats(struct impl *this, struct port *port,
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uint32_t index,
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const struct spa_pod *filter,
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struct spa_pod **param,
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struct spa_pod_builder *builder)
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{
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return 0;
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}
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static int port_get_format(struct impl *this, struct port *port,
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uint32_t index,
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const struct spa_pod *filter,
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struct spa_pod **param,
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struct spa_pod_builder *builder)
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{
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if (!port->have_format)
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return -EIO;
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if (index > 0)
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return 0;
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*param = SPA_PTROFF(port->format_buffer, 0, struct spa_pod);
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return 1;
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}
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static int
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impl_node_port_enum_params(void *object, int seq,
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enum spa_direction direction, uint32_t port_id,
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uint32_t id, uint32_t start, uint32_t num,
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const struct spa_pod *filter)
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{
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struct impl *this = object;
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struct port *port;
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struct spa_pod_builder b = { 0 };
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uint8_t buffer[1024];
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struct spa_pod *param;
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struct spa_result_node_params result;
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uint32_t count = 0;
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int res;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_return_val_if_fail(num != 0, -EINVAL);
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spa_return_val_if_fail(CHECK_PORT(node, direction, port_id), -EINVAL);
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port = &this->port;
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result.id = id;
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result.next = start;
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next:
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result.index = result.next++;
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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switch (id) {
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case SPA_PARAM_EnumFormat:
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if ((res = port_enum_formats(this, port,
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result.index, filter, ¶m, &b)) <= 0)
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return res;
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break;
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case SPA_PARAM_Format:
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if ((res = port_get_format(this, port,
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result.index, filter, ¶m, &b)) <= 0)
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return res;
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break;
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case SPA_PARAM_Buffers:
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switch (result.index) {
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case 0:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_ParamBuffers, id,
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SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(32, 2, 32),
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SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1),
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SPA_PARAM_BUFFERS_size, SPA_POD_Int(128),
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SPA_PARAM_BUFFERS_stride, SPA_POD_Int(1),
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SPA_PARAM_BUFFERS_align, SPA_POD_Int(16));
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break;
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default:
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return 0;
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}
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break;
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case SPA_PARAM_Meta:
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switch (result.index) {
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case 0:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_ParamMeta, id,
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SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header),
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SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header)));
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break;
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default:
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return 0;
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}
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break;
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default:
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return -ENOENT;
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}
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if (spa_pod_filter(&b, &result.param, param, filter) < 0)
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goto next;
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spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
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if (++count != num)
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goto next;
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return 0;
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}
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static int clear_buffers(struct impl *this, struct port *port)
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{
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if (port->n_buffers > 0) {
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spa_log_debug(this->log, NAME " %p: clear buffers", this);
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port->n_buffers = 0;
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spa_list_init(&port->empty);
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this->started = false;
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set_timer(this, false);
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}
|
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return 0;
|
|
}
|
|
|
|
static int port_set_format(struct impl *this, struct port *port,
|
|
uint32_t flags,
|
|
const struct spa_pod *format)
|
|
{
|
|
if (format == NULL) {
|
|
port->have_format = false;
|
|
clear_buffers(this, port);
|
|
} else {
|
|
if (SPA_POD_SIZE(format) > sizeof(port->format_buffer))
|
|
return -ENOSPC;
|
|
memcpy(port->format_buffer, format, SPA_POD_SIZE(format));
|
|
port->have_format = true;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
impl_node_port_set_param(void *object,
|
|
enum spa_direction direction, uint32_t port_id,
|
|
uint32_t id, uint32_t flags,
|
|
const struct spa_pod *param)
|
|
{
|
|
struct impl *this = object;
|
|
struct port *port;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
spa_return_val_if_fail(CHECK_PORT(node, direction, port_id), -EINVAL);
|
|
port = &this->port;
|
|
|
|
if (id == SPA_PARAM_Format) {
|
|
return port_set_format(this, port, flags, param);
|
|
}
|
|
else
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int
|
|
impl_node_port_use_buffers(void *object,
|
|
enum spa_direction direction, uint32_t flags,
|
|
uint32_t port_id,
|
|
struct spa_buffer **buffers, uint32_t n_buffers)
|
|
{
|
|
struct impl *this = object;
|
|
struct port *port;
|
|
uint32_t i;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
|
|
port = &this->port;
|
|
|
|
if (!port->have_format)
|
|
return -EIO;
|
|
|
|
clear_buffers(this, port);
|
|
|
|
for (i = 0; i < n_buffers; i++) {
|
|
struct buffer *b;
|
|
struct spa_data *d = buffers[i]->datas;
|
|
|
|
b = &port->buffers[i];
|
|
b->id = i;
|
|
b->outbuf = buffers[i];
|
|
b->outstanding = false;
|
|
b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h));
|
|
|
|
if (d[0].data == NULL) {
|
|
spa_log_error(this->log, NAME " %p: invalid memory on buffer %p", this,
|
|
buffers[i]);
|
|
}
|
|
spa_list_append(&port->empty, &b->link);
|
|
}
|
|
port->n_buffers = n_buffers;
|
|
this->underrun = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
impl_node_port_set_io(void *object,
|
|
enum spa_direction direction,
|
|
uint32_t port_id,
|
|
uint32_t id,
|
|
void *data, size_t size)
|
|
{
|
|
struct impl *this = object;
|
|
struct port *port;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
|
|
port = &this->port;
|
|
|
|
if (id == SPA_IO_Buffers)
|
|
port->io = data;
|
|
else
|
|
return -ENOENT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void reuse_buffer(struct impl *this, struct port *port, uint32_t id)
|
|
{
|
|
struct buffer *b = &port->buffers[id];
|
|
spa_return_if_fail(b->outstanding);
|
|
|
|
spa_log_trace(this->log, NAME " %p: reuse buffer %d", this, id);
|
|
|
|
b->outstanding = false;
|
|
spa_list_append(&port->empty, &b->link);
|
|
|
|
if (this->underrun) {
|
|
set_timer(this, true);
|
|
this->underrun = false;
|
|
}
|
|
}
|
|
|
|
static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id)
|
|
{
|
|
struct impl *this = object;
|
|
struct port *port;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
spa_return_val_if_fail(port_id == 0, -EINVAL);
|
|
port = &this->port;
|
|
|
|
spa_return_val_if_fail(buffer_id < port->n_buffers, -EINVAL);
|
|
|
|
reuse_buffer(this, port, buffer_id);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int impl_node_process(void *object)
|
|
{
|
|
struct impl *this = object;
|
|
struct port *port;
|
|
struct spa_io_buffers *io;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
|
|
port = &this->port;
|
|
io = port->io;
|
|
spa_return_val_if_fail(io != NULL, -EIO);
|
|
|
|
if (io->status == SPA_STATUS_HAVE_DATA)
|
|
return SPA_STATUS_HAVE_DATA;
|
|
|
|
if (io->buffer_id < port->n_buffers) {
|
|
reuse_buffer(this, port, io->buffer_id);
|
|
io->buffer_id = SPA_ID_INVALID;
|
|
}
|
|
|
|
if (this->callbacks.funcs == NULL)
|
|
return make_buffer(this);
|
|
else
|
|
return SPA_STATUS_OK;
|
|
}
|
|
|
|
static const struct spa_node_methods impl_node = {
|
|
SPA_VERSION_NODE_METHODS,
|
|
.add_listener = impl_node_add_listener,
|
|
.set_callbacks = impl_node_set_callbacks,
|
|
.enum_params = impl_node_enum_params,
|
|
.set_param = impl_node_set_param,
|
|
.set_io = impl_node_set_io,
|
|
.send_command = impl_node_send_command,
|
|
.add_port = impl_node_add_port,
|
|
.remove_port = impl_node_remove_port,
|
|
.port_enum_params = impl_node_port_enum_params,
|
|
.port_set_param = impl_node_port_set_param,
|
|
.port_use_buffers = impl_node_port_use_buffers,
|
|
.port_set_io = impl_node_port_set_io,
|
|
.port_reuse_buffer = impl_node_port_reuse_buffer,
|
|
.process = impl_node_process,
|
|
};
|
|
|
|
static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface)
|
|
{
|
|
struct impl *this;
|
|
|
|
spa_return_val_if_fail(handle != NULL, -EINVAL);
|
|
spa_return_val_if_fail(interface != NULL, -EINVAL);
|
|
|
|
this = (struct impl *) handle;
|
|
|
|
if (spa_streq(type, SPA_TYPE_INTERFACE_Node))
|
|
*interface = &this->node;
|
|
else
|
|
return -ENOENT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int impl_clear(struct spa_handle *handle)
|
|
{
|
|
struct impl *this;
|
|
|
|
spa_return_val_if_fail(handle != NULL, -EINVAL);
|
|
|
|
this = (struct impl *) handle;
|
|
|
|
if (this->data_loop)
|
|
spa_loop_remove_source(this->data_loop, &this->timer_source);
|
|
spa_system_close(this->data_system, this->timer_source.fd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static size_t
|
|
impl_get_size(const struct spa_handle_factory *factory,
|
|
const struct spa_dict *params)
|
|
{
|
|
return sizeof(struct impl);
|
|
}
|
|
|
|
static int
|
|
impl_init(const struct spa_handle_factory *factory,
|
|
struct spa_handle *handle,
|
|
const struct spa_dict *info,
|
|
const struct spa_support *support,
|
|
uint32_t n_support)
|
|
{
|
|
struct impl *this;
|
|
struct port *port;
|
|
|
|
spa_return_val_if_fail(factory != NULL, -EINVAL);
|
|
spa_return_val_if_fail(handle != NULL, -EINVAL);
|
|
|
|
handle->get_interface = impl_get_interface;
|
|
handle->clear = impl_clear;
|
|
|
|
this = (struct impl *) handle;
|
|
|
|
this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
|
|
this->data_loop = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataLoop);
|
|
this->data_system = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataSystem);
|
|
|
|
spa_hook_list_init(&this->hooks);
|
|
|
|
this->node.iface = SPA_INTERFACE_INIT(
|
|
SPA_TYPE_INTERFACE_Node,
|
|
SPA_VERSION_NODE,
|
|
&impl_node, this);
|
|
this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
|
|
SPA_NODE_CHANGE_MASK_PARAMS;
|
|
this->info = SPA_NODE_INFO_INIT();
|
|
this->info.max_input_ports = 0;
|
|
this->info.max_output_ports = 1;
|
|
this->info.flags = SPA_NODE_FLAG_RT;
|
|
this->params[0] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
|
|
this->info.params = this->params;
|
|
this->info.n_params = 1;
|
|
reset_props(this, &this->props);
|
|
|
|
this->timer_source.func = on_output;
|
|
this->timer_source.data = this;
|
|
this->timer_source.fd = spa_system_timerfd_create(this->data_system, CLOCK_MONOTONIC,
|
|
SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
|
|
this->timer_source.mask = SPA_IO_IN;
|
|
this->timer_source.rmask = 0;
|
|
this->timerspec.it_value.tv_sec = 0;
|
|
this->timerspec.it_value.tv_nsec = 0;
|
|
this->timerspec.it_interval.tv_sec = 0;
|
|
this->timerspec.it_interval.tv_nsec = 0;
|
|
|
|
if (this->data_loop)
|
|
spa_loop_add_source(this->data_loop, &this->timer_source);
|
|
|
|
port = &this->port;
|
|
port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
|
|
SPA_PORT_CHANGE_MASK_PARAMS;
|
|
port->info = SPA_PORT_INFO_INIT();
|
|
port->info.flags = SPA_PORT_FLAG_NO_REF;
|
|
if (this->props.live)
|
|
port->info.flags |= SPA_PORT_FLAG_LIVE;
|
|
port->params[0] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ);
|
|
port->params[1] = SPA_PARAM_INFO(SPA_PARAM_IO, 0);
|
|
port->params[2] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
|
|
port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
|
|
port->info.params = port->params;
|
|
port->info.n_params = 4;
|
|
|
|
spa_list_init(&port->empty);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct spa_interface_info impl_interfaces[] = {
|
|
{SPA_TYPE_INTERFACE_Node,},
|
|
};
|
|
|
|
static int
|
|
impl_enum_interface_info(const struct spa_handle_factory *factory,
|
|
const struct spa_interface_info **info,
|
|
uint32_t *index)
|
|
{
|
|
spa_return_val_if_fail(factory != NULL, -EINVAL);
|
|
spa_return_val_if_fail(info != NULL, -EINVAL);
|
|
spa_return_val_if_fail(index != NULL, -EINVAL);
|
|
|
|
switch (*index) {
|
|
case 0:
|
|
*info = &impl_interfaces[*index];
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
(*index)++;
|
|
return 1;
|
|
}
|
|
|
|
const struct spa_handle_factory spa_fakesrc_factory = {
|
|
SPA_VERSION_HANDLE_FACTORY,
|
|
NAME,
|
|
NULL,
|
|
impl_get_size,
|
|
impl_init,
|
|
impl_enum_interface_info,
|
|
};
|