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pipewire/spa/plugins/remote/proxy.c
Wim Taymans b208e8b690 Plug some leaks 
Add maxsize to bufferdata in case the memory size can be variable such
as with encoded formats. Copy new size in the proxy.
2016-09-30 19:56:41 +02:00

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/* Spa
* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <stddef.h>
#include <stdio.h>
#include <poll.h>
#include <sys/socket.h>
#include <errno.h>
#include <sys/mman.h>
#include <unistd.h>
#include <fcntl.h>
#include <spa/control.h>
#include <spa/debug.h>
#include <spa/node.h>
#include <spa/queue.h>
#include <spa/queue.h>
#include "../lib/memfd-wrappers.h"
#define MAX_INPUTS 64
#define MAX_OUTPUTS 64
#define MAX_PORTS (MAX_INPUTS + MAX_OUTPUTS)
#define MAX_BUFFERS 16
#define CHECK_FREE_PORT_ID(this,id) ((id) < MAX_PORTS && !(this)->ports[id].valid)
#define CHECK_PORT_ID(this,id) ((id) < MAX_PORTS && (this)->ports[id].valid)
#define CHECK_PORT_ID_IN(this,id) (CHECK_PORT_ID(this,id) && (id < this->max_inputs))
#define CHECK_PORT_ID_OUT(this,id) (CHECK_PORT_ID(this,id) && (id >= this->max_inputs))
typedef struct _SpaProxy SpaProxy;
typedef struct _ProxyBuffer ProxyBuffer;
struct _ProxyBuffer {
SpaBuffer *outbuf;
SpaBuffer buffer;
SpaMeta metas[4];
SpaData datas[4];
off_t offset;
size_t size;
};
typedef struct {
SpaProps props;
int socketfd;
} SpaProxyProps;
typedef struct {
bool valid;
SpaPortInfo info;
SpaFormat *format;
unsigned int n_formats;
SpaFormat **formats;
SpaPortStatus status;
unsigned int n_buffers;
ProxyBuffer buffers[MAX_BUFFERS];
uint32_t buffer_mem_id;
int buffer_mem_fd;
size_t buffer_mem_size;
void *buffer_mem_ptr;
uint32_t buffer_id;
SpaQueue ready;
} SpaProxyPort;
struct _SpaProxy {
SpaHandle handle;
SpaNode node;
SpaProxyProps props[2];
SpaNodeEventCallback event_cb;
void *user_data;
SpaPollFd fds[1];
SpaPollItem poll;
unsigned int max_inputs;
unsigned int n_inputs;
unsigned int max_outputs;
unsigned int n_outputs;
SpaProxyPort ports[MAX_PORTS];
uint32_t seq;
};
enum {
PROP_ID_SOCKET,
PROP_ID_LAST,
};
static const SpaPropInfo prop_info[PROP_ID_LAST] =
{
{ PROP_ID_SOCKET, offsetof (SpaProxyProps, socketfd),
"socket", "The Socket factor",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_INT, sizeof (int),
SPA_PROP_RANGE_TYPE_NONE, 0, NULL,
NULL },
};
static void
reset_proxy_props (SpaProxyProps *props)
{
props->socketfd = -1;
}
static SpaResult
update_poll (SpaProxy *this, int socketfd)
{
SpaNodeEvent event;
SpaProxyProps *p;
SpaResult res = SPA_RESULT_OK;
p = &this->props[1];
if (p->socketfd != -1) {
event.type = SPA_NODE_EVENT_TYPE_REMOVE_POLL;
event.data = &this->poll;
event.size = sizeof (this->poll);
this->event_cb (&this->node, &event, this->user_data);
}
p->socketfd = socketfd;
if (p->socketfd != -1) {
this->fds[0].fd = p->socketfd;
event.type = SPA_NODE_EVENT_TYPE_ADD_POLL;
event.data = &this->poll;
event.size = sizeof (this->poll);
this->event_cb (&this->node, &event, this->user_data);
}
return res;
}
static void
send_async_complete (SpaProxy *this, uint32_t seq, SpaResult res)
{
SpaNodeEvent event;
SpaNodeEventAsyncComplete ac;
event.type = SPA_NODE_EVENT_TYPE_ASYNC_COMPLETE;
event.data = &ac;
event.size = sizeof (ac);
ac.seq = seq;
ac.res = res;
this->event_cb (&this->node, &event, this->user_data);
}
static SpaResult
clear_buffers (SpaProxy *this, SpaProxyPort *port)
{
if (port->n_buffers) {
fprintf (stderr, "proxy %p: clear buffers\n", this);
munmap (port->buffer_mem_ptr, port->buffer_mem_size);
close (port->buffer_mem_fd);
port->n_buffers = 0;
SPA_QUEUE_INIT (&port->ready);
}
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_get_props (SpaNode *node,
SpaProps **props)
{
SpaProxy *this;
if (node == NULL || node->handle == NULL || props == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
memcpy (&this->props[0], &this->props[1], sizeof (this->props[1]));
*props = &this->props[0].props;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_set_props (SpaNode *node,
const SpaProps *props)
{
SpaProxy *this;
SpaProxyProps *op, *np;
SpaResult res;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
op = &this->props[1];
np = &this->props[0];
if (props == NULL) {
reset_proxy_props (np);
props = &np->props;
}
/* copy new properties */
res = spa_props_copy_values (props, &np->props);
/* compare changes */
if (op->socketfd != np->socketfd)
res = update_poll (this, np->socketfd);
/* commit changes */
memcpy (op, np, sizeof (*np));
return res;
}
static SpaResult
spa_proxy_node_send_command (SpaNode *node,
SpaNodeCommand *command)
{
SpaProxy *this;
SpaResult res = SPA_RESULT_OK;
if (node == NULL || node->handle == NULL || command == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
switch (command->type) {
case SPA_NODE_COMMAND_INVALID:
return SPA_RESULT_INVALID_COMMAND;
case SPA_NODE_COMMAND_START:
case SPA_NODE_COMMAND_PAUSE:
case SPA_NODE_COMMAND_FLUSH:
case SPA_NODE_COMMAND_DRAIN:
case SPA_NODE_COMMAND_MARKER:
{
SpaControlBuilder builder;
SpaControl control;
uint8_t buf[128];
SpaControlCmdNodeCommand cnc;
/* send start */
spa_control_builder_init_into (&builder, buf, sizeof (buf), NULL, 0);
cnc.seq = this->seq++;
cnc.command = command;
spa_control_builder_add_cmd (&builder, SPA_CONTROL_CMD_NODE_COMMAND, &cnc);
spa_control_builder_end (&builder, &control);
if ((res = spa_control_write (&control, this->fds[0].fd)) < 0)
fprintf (stderr, "proxy %p: error writing control %d\n", this, res);
spa_control_clear (&control);
res = SPA_RESULT_RETURN_ASYNC (cnc.seq);
break;
}
case SPA_NODE_COMMAND_CLOCK_UPDATE:
{
SpaControlBuilder builder;
SpaControl control;
uint8_t buf[128];
SpaControlCmdNodeCommand cnc;
/* send start */
spa_control_builder_init_into (&builder, buf, sizeof (buf), NULL, 0);
cnc.command = command;
spa_control_builder_add_cmd (&builder, SPA_CONTROL_CMD_NODE_COMMAND, &cnc);
spa_control_builder_end (&builder, &control);
if ((res = spa_control_write (&control, this->fds[0].fd)) < 0)
fprintf (stderr, "proxy %p: error writing control %d\n", this, res);
spa_control_clear (&control);
break;
}
}
return res;
}
static SpaResult
spa_proxy_node_set_event_callback (SpaNode *node,
SpaNodeEventCallback event,
void *user_data)
{
SpaProxy *this;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
this->event_cb = event;
this->user_data = user_data;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_get_n_ports (SpaNode *node,
unsigned int *n_input_ports,
unsigned int *max_input_ports,
unsigned int *n_output_ports,
unsigned int *max_output_ports)
{
SpaProxy *this;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (n_input_ports)
*n_input_ports = this->n_inputs;
if (n_output_ports)
*n_output_ports = this->n_outputs;
if (max_input_ports)
*max_input_ports = this->max_inputs;
if (max_output_ports)
*max_output_ports = this->max_outputs;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_get_port_ids (SpaNode *node,
unsigned int n_input_ports,
uint32_t *input_ids,
unsigned int n_output_ports,
uint32_t *output_ids)
{
SpaProxy *this;
int c, i;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (input_ids) {
for (c = 0, i = 0; i < MAX_INPUTS && c < n_input_ports; i++) {
if (this->ports[i].valid)
input_ids[c++] = i;
}
}
if (output_ids) {
for (c = 0, i = 0; i < MAX_OUTPUTS && c < n_output_ports; i++) {
if (this->ports[MAX_INPUTS + i].valid)
output_ids[c++] = MAX_INPUTS + i;
}
}
return SPA_RESULT_OK;
}
static void
do_update_port (SpaProxy *this,
SpaControlCmdPortUpdate *pu)
{
SpaProxyPort *port;
unsigned int i;
size_t size;
port = &this->ports[pu->port_id];
if (pu->change_mask & SPA_CONTROL_CMD_PORT_UPDATE_POSSIBLE_FORMATS) {
for (i = 0; i < port->n_formats; i++)
free (port->formats[i]);
port->n_formats = pu->n_possible_formats;
port->formats = realloc (port->formats, port->n_formats * sizeof (SpaFormat *));
for (i = 0; i < port->n_formats; i++) {
size = spa_format_get_size (pu->possible_formats[i]);
port->formats[i] = spa_format_copy_into (malloc (size), pu->possible_formats[i]);
spa_debug_format (port->formats[i]);
}
}
if (pu->change_mask & SPA_CONTROL_CMD_PORT_UPDATE_FORMAT) {
if (port->format)
free (port->format);
size = spa_format_get_size (pu->format);
port->format = spa_format_copy_into (malloc (size), pu->format);
}
if (pu->change_mask & SPA_CONTROL_CMD_PORT_UPDATE_PROPS) {
}
if (pu->change_mask & SPA_CONTROL_CMD_PORT_UPDATE_INFO && pu->info) {
port->info = *pu->info;
}
if (!port->valid) {
fprintf (stderr, "proxy %p: adding port %d\n", this, pu->port_id);
port->format = NULL;
port->valid = true;
if (pu->port_id < MAX_INPUTS)
this->n_inputs++;
else
this->n_outputs++;
}
}
static void
clear_port (SpaProxy *this,
SpaProxyPort *port,
uint32_t port_id)
{
SpaControlCmdPortUpdate pu;
pu.change_mask = SPA_CONTROL_CMD_PORT_UPDATE_POSSIBLE_FORMATS |
SPA_CONTROL_CMD_PORT_UPDATE_FORMAT |
SPA_CONTROL_CMD_PORT_UPDATE_PROPS |
SPA_CONTROL_CMD_PORT_UPDATE_INFO;
pu.port_id = port_id;
pu.n_possible_formats = 0;
pu.possible_formats = NULL;
pu.format = NULL;
pu.props = NULL;
pu.info = NULL;
do_update_port (this, &pu);
clear_buffers (this, port);
}
static void
do_uninit_port (SpaProxy *this,
uint32_t port_id)
{
SpaProxyPort *port;
fprintf (stderr, "proxy %p: removing port %d\n", this, port_id);
port = &this->ports[port_id];
if (port_id < MAX_INPUTS)
this->n_inputs--;
else
this->n_outputs--;
clear_port (this, port, port_id);
port->valid = false;
}
static SpaResult
spa_proxy_node_add_port (SpaNode *node,
uint32_t port_id)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_FREE_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
port = &this->ports[port_id];
clear_port (this, port, port_id);
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_remove_port (SpaNode *node,
uint32_t port_id)
{
SpaProxy *this;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
do_uninit_port (this, port_id);
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_enum_formats (SpaNode *node,
uint32_t port_id,
SpaFormat **format,
const SpaFormat *filter,
void **state)
{
SpaProxy *this;
SpaProxyPort *port;
int index;
if (node == NULL || node->handle == NULL || format == NULL || state == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
port = &this->ports[port_id];
index = (*state == NULL ? 0 : *(int*)state);
if (index >= port->n_formats)
return SPA_RESULT_ENUM_END;
*format = port->formats[index];
*(int*)state = ++index;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_set_format (SpaNode *node,
uint32_t port_id,
SpaPortFormatFlags flags,
const SpaFormat *format)
{
SpaProxy *this;
SpaControl control;
SpaControlBuilder builder;
SpaControlCmdSetFormat sf;
uint8_t buf[128];
SpaResult res;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
spa_control_builder_init_into (&builder, buf, sizeof (buf), NULL, 0);
sf.seq = this->seq++;
sf.flags = flags;
sf.format = (SpaFormat *) format;
spa_control_builder_add_cmd (&builder, SPA_CONTROL_CMD_SET_FORMAT, &sf);
spa_control_builder_end (&builder, &control);
if ((res = spa_control_write (&control, this->fds[0].fd)) < 0)
fprintf (stderr, "proxy %p: error writing control\n", this);
spa_control_clear (&control);
return SPA_RESULT_RETURN_ASYNC (sf.seq);
}
static SpaResult
spa_proxy_node_port_get_format (SpaNode *node,
uint32_t port_id,
const SpaFormat **format)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || node->handle == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
port = &this->ports[port_id];
if (!port->format)
return SPA_RESULT_NO_FORMAT;
*format = port->format;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_get_info (SpaNode *node,
uint32_t port_id,
const SpaPortInfo **info)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || node->handle == NULL || info == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
port = &this->ports[port_id];
*info = &port->info;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_get_props (SpaNode *node,
uint32_t port_id,
SpaProps **props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_proxy_node_port_set_props (SpaNode *node,
uint32_t port_id,
const SpaProps *props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_proxy_node_port_get_status (SpaNode *node,
uint32_t port_id,
const SpaPortStatus **status)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || node->handle == NULL || status == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
port = &this->ports[port_id];
if (!port->format)
return SPA_RESULT_NO_FORMAT;
*status = &port->status;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_use_buffers (SpaNode *node,
uint32_t port_id,
SpaBuffer **buffers,
uint32_t n_buffers)
{
SpaProxy *this;
SpaProxyPort *port;
unsigned int i, j;
SpaControl control;
SpaControlBuilder builder;
uint8_t buf[4096];
int fds[32];
SpaResult res;
SpaControlCmdAddMem am;
SpaControlCmdUseBuffers ub;
size_t size, n_mem;
SpaControlMemRef *memref;
void *p;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
fprintf (stderr, "proxy %p: use buffers %p %u\n", this, buffers, n_buffers);
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
port = &this->ports[port_id];
if (!port->format)
return SPA_RESULT_NO_FORMAT;
clear_buffers (this, port);
spa_control_builder_init_into (&builder, buf, sizeof (buf), fds, SPA_N_ELEMENTS (fds));
/* find size to store buffers */
size = 0;
n_mem = 0;
for (i = 0; i < n_buffers; i++) {
ProxyBuffer *b = &port->buffers[i];
b->outbuf = buffers[i];
memcpy (&b->buffer, buffers[i], sizeof (SpaBuffer));
b->buffer.datas = b->datas;
b->buffer.metas = b->metas;
b->size = spa_buffer_get_size (buffers[i]);
b->offset = size;
size += b->size;
for (j = 0; j < buffers[i]->n_datas; j++) {
memcpy (&b->buffer.metas[j], &buffers[i]->metas[j], sizeof (SpaMeta));
}
for (j = 0; j < buffers[i]->n_datas; j++) {
SpaData *d = &buffers[i]->datas[j];
memcpy (&b->buffer.datas[j], d, sizeof (SpaData));
am.port_id = port_id;
am.mem_id = n_mem;
am.fd_index = spa_control_builder_add_fd (&builder, SPA_PTR_TO_INT (d->data), false);
am.flags = 0;
am.offset = d->offset;
am.size = d->maxsize;
spa_control_builder_add_cmd (&builder, SPA_CONTROL_CMD_ADD_MEM, &am);
b->buffer.datas[j].data = SPA_UINT32_TO_PTR (n_mem);
n_mem++;
}
}
/* make mem for the buffers */
port->buffer_mem_id = n_mem;
port->buffer_mem_size = size;
port->buffer_mem_fd = memfd_create ("spa-memfd", MFD_CLOEXEC | MFD_ALLOW_SEALING);
if (ftruncate (port->buffer_mem_fd, size) < 0) {
fprintf (stderr, "Failed to truncate temporary file: %s\n", strerror (errno));
close (port->buffer_mem_fd);
return SPA_RESULT_ERROR;
}
#if 0
{
unsigned int seals = F_SEAL_GROW | F_SEAL_SHRINK | F_SEAL_SEAL;
if (fcntl (port->buffer_mem_fd, F_ADD_SEALS, seals) == -1) {
fprintf (stderr, "Failed to add seals: %s\n", strerror (errno));
}
}
#endif
p = port->buffer_mem_ptr = mmap (NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, port->buffer_mem_fd, 0);
for (i = 0; i < n_buffers; i++) {
ProxyBuffer *b = &port->buffers[i];
size_t len;
SpaBuffer *sb;
SpaMeta *sbm;
len = spa_buffer_serialize (p, &b->buffer);
sb = p;
b->buffer.datas = SPA_MEMBER (sb, SPA_PTR_TO_INT (sb->datas), SpaData);
sbm = SPA_MEMBER (sb, SPA_PTR_TO_INT (sb->metas), SpaMeta);
for (j = 0; j < b->buffer.n_metas; j++)
b->metas[j].data = SPA_MEMBER (sb, SPA_PTR_TO_INT (sbm[j].data), void);
p += len;
}
am.port_id = port_id;
am.mem_id = port->buffer_mem_id;
am.fd_index = spa_control_builder_add_fd (&builder, port->buffer_mem_fd, false);
am.flags = 0;
am.offset = 0;
am.size = size;
spa_control_builder_add_cmd (&builder, SPA_CONTROL_CMD_ADD_MEM, &am);
memref = alloca (n_mem * sizeof (SpaControlMemRef));
for (i = 0; i < n_buffers; i++) {
memref[i].mem_id = port->buffer_mem_id;
memref[i].offset = port->buffers[i].offset;
memref[i].size = port->buffers[i].size;
}
port->n_buffers = n_buffers;
ub.seq = this->seq++;
ub.port_id = port_id;
ub.n_buffers = port->n_buffers;
ub.buffers = memref;
spa_control_builder_add_cmd (&builder, SPA_CONTROL_CMD_USE_BUFFERS, &ub);
spa_control_builder_end (&builder, &control);
if ((res = spa_control_write (&control, this->fds[0].fd)) < 0)
fprintf (stderr, "proxy %p: error writing control\n", this);
spa_control_clear (&control);
return SPA_RESULT_RETURN_ASYNC (ub.seq);
}
static SpaResult
spa_proxy_node_port_alloc_buffers (SpaNode *node,
uint32_t port_id,
SpaAllocParam **params,
uint32_t n_params,
SpaBuffer **buffers,
uint32_t *n_buffers)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || node->handle == NULL || buffers == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
port = &this->ports[port_id];
if (!port->format)
return SPA_RESULT_NO_FORMAT;
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_proxy_node_port_reuse_buffer (SpaNode *node,
uint32_t port_id,
uint32_t buffer_id)
{
SpaProxy *this;
SpaControlBuilder builder;
SpaControl control;
uint8_t buf[128];
SpaResult res;
SpaControlCmdNodeEvent cne;
SpaNodeEvent ne;
SpaNodeEventReuseBuffer rb;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
if (!CHECK_PORT_ID (this, port_id))
return SPA_RESULT_INVALID_PORT;
/* send start */
spa_control_builder_init_into (&builder, buf, sizeof (buf), NULL, 0);
cne.event = &ne;
ne.type = SPA_NODE_EVENT_TYPE_REUSE_BUFFER;
ne.data = &rb;
ne.size = sizeof (rb);
rb.port_id = port_id;
rb.buffer_id = buffer_id;
spa_control_builder_add_cmd (&builder, SPA_CONTROL_CMD_NODE_EVENT, &cne);
spa_control_builder_end (&builder, &control);
if ((res = spa_control_write (&control, this->fds[0].fd)) < 0)
fprintf (stderr, "proxy %p: error writing control %d\n", this, res);
spa_control_clear (&control);
return res;
}
static void
copy_meta (SpaProxy *this, SpaProxyPort *port, uint32_t buffer_id)
{
ProxyBuffer *b = &port->buffers[buffer_id];
unsigned int i;
for (i = 0; i < b->outbuf->n_metas; i++) {
SpaMeta *sm = &b->outbuf->metas[i];
SpaMeta *dm = &b->buffer.metas[i];
memcpy (dm->data, sm->data, dm->size);
}
for (i = 0; i < b->outbuf->n_datas; i++) {
b->buffer.datas[i].size = b->outbuf->datas[i].size;
}
}
static SpaResult
spa_proxy_node_port_push_input (SpaNode *node,
unsigned int n_info,
SpaPortInputInfo *info)
{
SpaProxy *this;
SpaProxyPort *port;
unsigned int i;
bool have_error = false;
bool have_enough = false;
SpaControl control;
SpaControlBuilder builder;
SpaControlCmdProcessBuffer pb;
uint8_t buf[64];
SpaResult res;
if (node == NULL || node->handle == NULL || n_info == 0 || info == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
spa_control_builder_init_into (&builder, buf, sizeof(buf), NULL, 0);
for (i = 0; i < n_info; i++) {
if (!CHECK_PORT_ID_IN (this, info[i].port_id)) {
printf ("invalid port %d\n", info[i].port_id);
info[i].status = SPA_RESULT_INVALID_PORT;
have_error = true;
continue;
}
port = &this->ports[info[i].port_id];
if (!port->format) {
info[i].status = SPA_RESULT_NO_FORMAT;
have_error = true;
continue;
}
if (info[i].buffer_id >= port->n_buffers) {
if (port->n_buffers == 0)
info[i].status = SPA_RESULT_NO_BUFFERS;
else
info[i].status = SPA_RESULT_INVALID_BUFFER_ID;
have_error = true;
continue;
}
copy_meta (this, port, info[i].buffer_id);
pb.port_id = info[i].port_id;
pb.buffer_id = info[i].buffer_id;
spa_control_builder_add_cmd (&builder, SPA_CONTROL_CMD_PROCESS_BUFFER, &pb);
info[i].status = SPA_RESULT_OK;
}
spa_control_builder_end (&builder, &control);
if (have_error)
return SPA_RESULT_ERROR;
if (have_enough)
return SPA_RESULT_HAVE_ENOUGH_INPUT;
if ((res = spa_control_write (&control, this->fds[0].fd)) < 0)
fprintf (stderr, "proxy %p: error writing control\n", this);
spa_control_clear (&control);
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_pull_output (SpaNode *node,
unsigned int n_info,
SpaPortOutputInfo *info)
{
SpaProxy *this;
SpaProxyPort *port;
unsigned int i;
bool have_error = false;
bool need_more = false;
if (node == NULL || node->handle == NULL || n_info == 0 || info == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) node->handle;
for (i = 0; i < n_info; i++) {
if (!CHECK_PORT_ID_OUT (this, info[i].port_id)) {
fprintf (stderr, "invalid port %u\n", info[i].port_id);
info[i].status = SPA_RESULT_INVALID_PORT;
have_error = true;
continue;
}
port = &this->ports[info[i].port_id];
if (!port->format) {
info[i].status = SPA_RESULT_NO_FORMAT;
have_error = true;
continue;
}
info[i].buffer_id = port->buffer_id;
info[i].status = SPA_RESULT_OK;
port->buffer_id = SPA_ID_INVALID;
}
if (have_error)
return SPA_RESULT_ERROR;
if (need_more)
return SPA_RESULT_NEED_MORE_INPUT;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_push_event (SpaNode *node,
uint32_t port_id,
SpaNodeEvent *event)
{
if (node == NULL || node->handle == NULL || event == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
switch (event->type) {
default:
fprintf (stderr, "unhandled event %d\n", event->type);
break;
}
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
handle_node_event (SpaProxy *this,
SpaNodeEvent *event)
{
switch (event->type) {
case SPA_NODE_EVENT_TYPE_INVALID:
break;
case SPA_NODE_EVENT_TYPE_ASYNC_COMPLETE:
case SPA_NODE_EVENT_TYPE_HAVE_OUTPUT:
case SPA_NODE_EVENT_TYPE_NEED_INPUT:
case SPA_NODE_EVENT_TYPE_REUSE_BUFFER:
case SPA_NODE_EVENT_TYPE_ADD_POLL:
case SPA_NODE_EVENT_TYPE_UPDATE_POLL:
case SPA_NODE_EVENT_TYPE_REMOVE_POLL:
case SPA_NODE_EVENT_TYPE_DRAINED:
case SPA_NODE_EVENT_TYPE_MARKER:
case SPA_NODE_EVENT_TYPE_ERROR:
case SPA_NODE_EVENT_TYPE_BUFFERING:
case SPA_NODE_EVENT_TYPE_REQUEST_REFRESH:
case SPA_NODE_EVENT_TYPE_REQUEST_CLOCK_UPDATE:
this->event_cb (&this->node, event, this->user_data);
break;
}
return SPA_RESULT_OK;
}
static SpaResult
parse_control (SpaProxy *this,
SpaControl *ctrl)
{
SpaControlIter it;
spa_control_iter_init (&it, ctrl);
while (spa_control_iter_next (&it) == SPA_RESULT_OK) {
SpaControlCmd cmd = spa_control_iter_get_cmd (&it);
switch (cmd) {
case SPA_CONTROL_CMD_INVALID:
case SPA_CONTROL_CMD_ADD_PORT:
case SPA_CONTROL_CMD_REMOVE_PORT:
case SPA_CONTROL_CMD_SET_FORMAT:
case SPA_CONTROL_CMD_SET_PROPERTY:
case SPA_CONTROL_CMD_NODE_COMMAND:
fprintf (stderr, "proxy %p: got unexpected control %d\n", this, cmd);
break;
case SPA_CONTROL_CMD_NODE_UPDATE:
{
SpaControlCmdNodeUpdate nu;
if (spa_control_iter_parse_cmd (&it, &nu) < 0)
break;
if (nu.change_mask & SPA_CONTROL_CMD_NODE_UPDATE_MAX_INPUTS)
this->max_inputs = nu.max_input_ports;
if (nu.change_mask & SPA_CONTROL_CMD_NODE_UPDATE_MAX_OUTPUTS)
this->max_outputs = nu.max_output_ports;
fprintf (stderr, "proxy %p: got node update %d, max_in %u, max_out %u\n", this, cmd,
this->max_inputs, this->max_outputs);
break;
}
case SPA_CONTROL_CMD_PORT_UPDATE:
{
SpaControlCmdPortUpdate pu;
bool remove;
fprintf (stderr, "proxy %p: got port update %d\n", this, cmd);
if (spa_control_iter_parse_cmd (&it, &pu) < 0)
break;
if (pu.port_id >= MAX_PORTS)
break;
remove = (pu.change_mask == 0);
if (remove) {
do_uninit_port (this, pu.port_id);
} else {
do_update_port (this, &pu);
}
break;
}
case SPA_CONTROL_CMD_PORT_STATUS_CHANGE:
{
fprintf (stderr, "proxy %p: command not implemented %d\n", this, cmd);
break;
}
case SPA_CONTROL_CMD_NODE_STATE_CHANGE:
{
SpaControlCmdNodeStateChange sc;
SpaNodeState old = this->node.state;
if (spa_control_iter_parse_cmd (&it, &sc) < 0)
break;
fprintf (stderr, "proxy %p: got node state change %d -> %d\n", this, old, sc.state);
this->node.state = sc.state;
if (old == SPA_NODE_STATE_INIT)
send_async_complete (this, 0, SPA_RESULT_OK);
break;
}
case SPA_CONTROL_CMD_ADD_MEM:
break;
case SPA_CONTROL_CMD_REMOVE_MEM:
break;
case SPA_CONTROL_CMD_USE_BUFFERS:
break;
case SPA_CONTROL_CMD_PROCESS_BUFFER:
{
SpaControlCmdProcessBuffer cmd;
SpaProxyPort *port;
if (spa_control_iter_parse_cmd (&it, &cmd) < 0)
break;
port = &this->ports[cmd.port_id];
if (port->buffer_id != SPA_ID_INVALID)
fprintf (stderr, "proxy %p: unprocessed buffer: %d\n", this, port->buffer_id);
port->buffer_id = cmd.buffer_id;
break;
}
case SPA_CONTROL_CMD_NODE_EVENT:
{
SpaControlCmdNodeEvent cne;
if (spa_control_iter_parse_cmd (&it, &cne) < 0)
break;
handle_node_event (this, cne.event);
break;
}
}
}
spa_control_iter_end (&it);
return SPA_RESULT_OK;
}
static int
proxy_on_fd_events (SpaPollNotifyData *data)
{
SpaProxy *this = data->user_data;
SpaResult res;
if (data->fds[0].revents & POLLIN) {
SpaControl control;
uint8_t buf[1024];
int fds[16];
if ((res = spa_control_read (&control, data->fds[0].fd, buf, 1024, fds, 16)) < 0) {
fprintf (stderr, "proxy %p: failed to read control: %d\n", this, res);
return 0;
}
parse_control (this, &control);
spa_control_clear (&control);
}
return 0;
}
static const SpaNode proxy_node = {
NULL,
sizeof (SpaNode),
NULL,
SPA_NODE_STATE_INIT,
spa_proxy_node_get_props,
spa_proxy_node_set_props,
spa_proxy_node_send_command,
spa_proxy_node_set_event_callback,
spa_proxy_node_get_n_ports,
spa_proxy_node_get_port_ids,
spa_proxy_node_add_port,
spa_proxy_node_remove_port,
spa_proxy_node_port_enum_formats,
spa_proxy_node_port_set_format,
spa_proxy_node_port_get_format,
spa_proxy_node_port_get_info,
spa_proxy_node_port_get_props,
spa_proxy_node_port_set_props,
spa_proxy_node_port_use_buffers,
spa_proxy_node_port_alloc_buffers,
spa_proxy_node_port_reuse_buffer,
spa_proxy_node_port_get_status,
spa_proxy_node_port_push_input,
spa_proxy_node_port_pull_output,
spa_proxy_node_port_push_event,
};
static SpaResult
spa_proxy_get_interface (SpaHandle *handle,
uint32_t interface_id,
void **interface)
{
SpaProxy *this = (SpaProxy *) handle;
if (handle == NULL || interface == 0)
return SPA_RESULT_INVALID_ARGUMENTS;
switch (interface_id) {
case SPA_INTERFACE_ID_NODE:
*interface = &this->node;
break;
default:
return SPA_RESULT_UNKNOWN_INTERFACE;
}
return SPA_RESULT_OK;
}
static SpaResult
proxy_clear (SpaHandle *handle)
{
SpaProxy *this;
unsigned int i;
if (handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaProxy *) handle;
for (i = 0; i < MAX_PORTS; i++) {
if (this->ports[i].valid)
clear_port (this, &this->ports[i], i);
}
return SPA_RESULT_OK;
}
static SpaResult
proxy_init (const SpaHandleFactory *factory,
SpaHandle *handle,
const SpaDict *info)
{
SpaProxy *this;
if (factory == NULL || handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
handle->get_interface = spa_proxy_get_interface;
handle->clear = proxy_clear;
this = (SpaProxy *) handle;
this->node = proxy_node;
this->node.handle = handle;
this->props[1].props.n_prop_info = PROP_ID_LAST;
this->props[1].props.prop_info = prop_info;
reset_proxy_props (&this->props[1]);
memcpy (&this->props[0], &this->props[1], sizeof (this->props[1]));
this->fds[0].fd = -1;
this->fds[0].events = POLLIN | POLLPRI | POLLERR;
this->fds[0].revents = 0;
this->poll.id = 0;
this->poll.enabled = true;
this->poll.fds = this->fds;
this->poll.n_fds = 1;
this->poll.idle_cb = NULL;
this->poll.before_cb = NULL;
this->poll.after_cb = proxy_on_fd_events;
this->poll.user_data = this;
return SPA_RESULT_RETURN_ASYNC (this->seq++);
}
static const SpaInterfaceInfo proxy_interfaces[] =
{
{ SPA_INTERFACE_ID_NODE,
SPA_INTERFACE_ID_NODE_NAME,
SPA_INTERFACE_ID_NODE_DESCRIPTION,
},
};
static SpaResult
proxy_enum_interface_info (const SpaHandleFactory *factory,
const SpaInterfaceInfo **info,
void **state)
{
int index;
if (factory == NULL || info == NULL || state == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
index = (*state == NULL ? 0 : *(int*)state);
switch (index) {
case 0:
*info = &proxy_interfaces[index];
break;
default:
return SPA_RESULT_ENUM_END;
}
*(int*)state = ++index;
return SPA_RESULT_OK;
}
const SpaHandleFactory spa_proxy_factory =
{ "proxy",
NULL,
sizeof (SpaProxy),
proxy_init,
proxy_enum_interface_info,
};
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