buffer: make data and meta types dynamic

Use dynamic types for the data and meta types.
Move the meta into a separate header.
Remove port state, we can keep track of that ourselves.
Add size to MetaDataEnable params
This commit is contained in:
Wim Taymans 2017-04-26 18:42:50 +02:00
parent ed273ec465
commit b51d3e4862
36 changed files with 543 additions and 553 deletions

View file

@ -613,16 +613,15 @@ spa_proxy_node_port_use_buffers (SpaNode *node,
uint32_t n_buffers)
{
SpaProxy *this;
PinosClientNodeImpl *impl;
SpaProxyPort *port;
uint32_t i, j;
size_t n_mem;
PinosClientNodeBuffer *mb;
SpaMetaShared *msh;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
impl = this->impl;
spa_log_info (this->log, "proxy %p: use buffers %p %u", this, buffers, n_buffers);
if (!CHECK_PORT (this, direction, port_id))
@ -650,7 +649,7 @@ spa_proxy_node_port_use_buffers (SpaNode *node,
for (i = 0; i < n_buffers; i++) {
ProxyBuffer *b = &port->buffers[i];
msh = spa_buffer_find_meta (buffers[i], SPA_META_TYPE_SHARED);
msh = spa_buffer_find_meta (buffers[i], impl->core->type.meta.Shared);
if (msh == NULL) {
spa_log_error (this->log, "missing shared metadata on buffer %d", i);
return SPA_RESULT_ERROR;
@ -670,7 +669,7 @@ spa_proxy_node_port_use_buffers (SpaNode *node,
direction,
port_id,
mb[i].mem_id,
SPA_DATA_TYPE_MEMFD,
impl->core->type.data.MemFd,
msh->fd,
msh->flags,
msh->offset,
@ -685,31 +684,29 @@ spa_proxy_node_port_use_buffers (SpaNode *node,
memcpy (&b->buffer.datas[j], d, sizeof (SpaData));
switch (d->type) {
case SPA_DATA_TYPE_DMABUF:
case SPA_DATA_TYPE_MEMFD:
pinos_client_node_notify_add_mem (this->resource,
direction,
port_id,
n_mem,
d->type,
d->fd,
d->flags,
d->mapoffset,
d->maxsize);
b->buffer.datas[j].type = SPA_DATA_TYPE_ID;
b->buffer.datas[j].data = SPA_UINT32_TO_PTR (n_mem);
n_mem++;
break;
case SPA_DATA_TYPE_MEMPTR:
b->buffer.datas[j].data = SPA_INT_TO_PTR (b->size);
b->size += d->maxsize;
break;
default:
b->buffer.datas[j].type = SPA_DATA_TYPE_INVALID;
b->buffer.datas[j].data = 0;
spa_log_error (this->log, "invalid memory type %d", d->type);
break;
if (d->type == impl->core->type.data.DmaBuf ||
d->type == impl->core->type.data.MemFd) {
pinos_client_node_notify_add_mem (this->resource,
direction,
port_id,
n_mem,
d->type,
d->fd,
d->flags,
d->mapoffset,
d->maxsize);
b->buffer.datas[j].type = impl->core->type.data.Id;
b->buffer.datas[j].data = SPA_UINT32_TO_PTR (n_mem);
n_mem++;
}
else if (d->type == impl->core->type.data.MemPtr) {
b->buffer.datas[j].data = SPA_INT_TO_PTR (b->size);
b->size += d->maxsize;
}
else {
b->buffer.datas[j].type = SPA_ID_INVALID;
b->buffer.datas[j].data = 0;
spa_log_error (this->log, "invalid memory type %d", d->type);
}
}
}
@ -833,9 +830,6 @@ spa_proxy_node_process_output (SpaNode *node)
int i;
bool send_need = false, flush = false;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
impl = this->impl;

View file

@ -654,12 +654,12 @@ pinos_core_find_format (PinosCore *core,
pinos_log_debug ("core %p: finding best format %d %d", core, out_state, in_state);
if (out_state > SPA_PORT_STATE_CONFIGURE && output->node->state == PINOS_NODE_STATE_IDLE)
out_state = SPA_PORT_STATE_CONFIGURE;
if (in_state > SPA_PORT_STATE_CONFIGURE && input->node->state == PINOS_NODE_STATE_IDLE)
in_state = SPA_PORT_STATE_CONFIGURE;
if (out_state > PINOS_PORT_STATE_CONFIGURE && output->node->state == PINOS_NODE_STATE_IDLE)
out_state = PINOS_PORT_STATE_CONFIGURE;
if (in_state > PINOS_PORT_STATE_CONFIGURE && input->node->state == PINOS_NODE_STATE_IDLE)
in_state = PINOS_PORT_STATE_CONFIGURE;
if (in_state == SPA_PORT_STATE_CONFIGURE && out_state > SPA_PORT_STATE_CONFIGURE) {
if (in_state == PINOS_PORT_STATE_CONFIGURE && out_state > PINOS_PORT_STATE_CONFIGURE) {
/* only input needs format */
if ((res = spa_node_port_get_format (output->node->node,
SPA_DIRECTION_OUTPUT,
@ -668,7 +668,7 @@ pinos_core_find_format (PinosCore *core,
asprintf (error, "error get output format: %d", res);
goto error;
}
} else if (out_state == SPA_PORT_STATE_CONFIGURE && in_state > SPA_PORT_STATE_CONFIGURE) {
} else if (out_state == PINOS_PORT_STATE_CONFIGURE && in_state > PINOS_PORT_STATE_CONFIGURE) {
/* only output needs format */
if ((res = spa_node_port_get_format (input->node->node,
SPA_DIRECTION_INPUT,
@ -677,7 +677,7 @@ pinos_core_find_format (PinosCore *core,
asprintf (error, "error get input format: %d", res);
goto error;
}
} else if (in_state == SPA_PORT_STATE_CONFIGURE && out_state == SPA_PORT_STATE_CONFIGURE) {
} else if (in_state == PINOS_PORT_STATE_CONFIGURE && out_state == PINOS_PORT_STATE_CONFIGURE) {
again:
/* both ports need a format */
pinos_log_debug ("core %p: finding best format", core);

View file

@ -83,7 +83,7 @@ complete_ready (void *obj,
{
PinosPort *port = data;
if (SPA_RESULT_IS_OK (res)) {
port->state = SPA_PORT_STATE_READY;
port->state = PINOS_PORT_STATE_READY;
pinos_log_debug ("port %p: state READY", port);
}
else
@ -98,7 +98,7 @@ complete_paused (void *obj,
{
PinosPort *port = data;
if (SPA_RESULT_IS_OK (res)) {
port->state = SPA_PORT_STATE_PAUSED;
port->state = PINOS_PORT_STATE_PAUSED;
pinos_log_debug ("port %p: state PAUSED", port);
}
else
@ -113,7 +113,7 @@ complete_streaming (void *obj,
{
PinosPort *port = data;
if (SPA_RESULT_IS_OK (res)) {
port->state = SPA_PORT_STATE_STREAMING;
port->state = PINOS_PORT_STATE_STREAMING;
pinos_log_debug ("port %p: state STREAMING", port);
}
else
@ -128,7 +128,7 @@ do_negotiate (PinosLink *this, uint32_t in_state, uint32_t out_state)
SpaFormat *format;
char *error = NULL;
if (in_state != SPA_PORT_STATE_CONFIGURE && out_state != SPA_PORT_STATE_CONFIGURE)
if (in_state != PINOS_PORT_STATE_CONFIGURE && out_state != PINOS_PORT_STATE_CONFIGURE)
return SPA_RESULT_OK;
pinos_link_update_state (this, PINOS_LINK_STATE_NEGOTIATING, NULL);
@ -143,20 +143,20 @@ do_negotiate (PinosLink *this, uint32_t in_state, uint32_t out_state)
if (format == NULL)
goto error;
if (out_state > SPA_PORT_STATE_CONFIGURE && this->output->node->state == PINOS_NODE_STATE_IDLE) {
if (out_state > PINOS_PORT_STATE_CONFIGURE && this->output->node->state == PINOS_NODE_STATE_IDLE) {
pinos_node_set_state (this->output->node, PINOS_NODE_STATE_SUSPENDED);
out_state = SPA_PORT_STATE_CONFIGURE;
out_state = PINOS_PORT_STATE_CONFIGURE;
}
if (in_state > SPA_PORT_STATE_CONFIGURE && this->input->node->state == PINOS_NODE_STATE_IDLE) {
if (in_state > PINOS_PORT_STATE_CONFIGURE && this->input->node->state == PINOS_NODE_STATE_IDLE) {
pinos_node_set_state (this->input->node, PINOS_NODE_STATE_SUSPENDED);
in_state = SPA_PORT_STATE_CONFIGURE;
in_state = PINOS_PORT_STATE_CONFIGURE;
}
pinos_log_debug ("link %p: doing set format", this);
if (pinos_log_level_enabled (SPA_LOG_LEVEL_DEBUG))
spa_debug_format (format, this->core->type.map);
if (out_state == SPA_PORT_STATE_CONFIGURE) {
if (out_state == PINOS_PORT_STATE_CONFIGURE) {
pinos_log_debug ("link %p: doing set format on output", this);
if ((res = spa_node_port_set_format (this->output->node->node,
SPA_DIRECTION_OUTPUT,
@ -168,7 +168,7 @@ do_negotiate (PinosLink *this, uint32_t in_state, uint32_t out_state)
}
pinos_work_queue_add (impl->work, this->output->node, res, complete_ready, this->output);
}
if (in_state == SPA_PORT_STATE_CONFIGURE) {
if (in_state == PINOS_PORT_STATE_CONFIGURE) {
pinos_log_debug ("link %p: doing set format on input", this);
if ((res2 = spa_node_port_set_format (this->input->node->node,
SPA_DIRECTION_INPUT,
@ -203,7 +203,7 @@ find_param (const SpaPortInfo *info, uint32_t type)
}
static void *
find_meta_enable (PinosCore *core, const SpaPortInfo *info, SpaMetaType type)
find_meta_enable (PinosCore *core, const SpaPortInfo *info, uint32_t type)
{
uint32_t i;
@ -212,7 +212,7 @@ find_meta_enable (PinosCore *core, const SpaPortInfo *info, SpaMetaType type)
uint32_t qtype;
if (spa_alloc_param_query (info->params[i],
core->type.alloc_param_meta_enable.type, SPA_POD_TYPE_INT, &qtype, 0) != 1)
core->type.alloc_param_meta_enable.type, SPA_POD_TYPE_ID, &qtype, 0) != 1)
continue;
if (qtype == type)
@ -248,8 +248,8 @@ alloc_buffers (PinosLink *this,
metas = alloca (sizeof (SpaMeta) * n_params + 1);
/* add shared metadata */
metas[n_metas].type = SPA_META_TYPE_SHARED;
metas[n_metas].size = spa_meta_type_get_size (SPA_META_TYPE_SHARED);
metas[n_metas].type = this->core->type.meta.Shared;
metas[n_metas].size = sizeof (SpaMetaShared);
meta_size += metas[n_metas].size;
n_metas++;
skel_size += sizeof (SpaMeta);
@ -259,15 +259,16 @@ alloc_buffers (PinosLink *this,
SpaAllocParam *ap = params[i];
if (ap->pod.type == this->core->type.alloc_param_meta_enable.MetaEnable) {
uint32_t type;
uint32_t type, size;
if (spa_alloc_param_query (ap,
this->core->type.alloc_param_meta_enable.type, SPA_POD_TYPE_INT, &type,
this->core->type.alloc_param_meta_enable.type, SPA_POD_TYPE_ID, &type,
this->core->type.alloc_param_meta_enable.size, SPA_POD_TYPE_INT, &size,
0) != 1)
continue;
metas[n_metas].type = type;
metas[n_metas].size = spa_meta_type_get_size (type);
metas[n_metas].size = size;
meta_size += metas[n_metas].size;
n_metas++;
skel_size += sizeof (SpaMeta);
@ -312,26 +313,17 @@ alloc_buffers (PinosLink *this,
m->data = p;
m->size = metas[j].size;
switch (m->type) {
case SPA_META_TYPE_SHARED:
{
SpaMetaShared *msh = p;
if (m->type == this->core->type.meta.Shared) {
SpaMetaShared *msh = p;
msh->type = SPA_DATA_TYPE_MEMFD;
msh->flags = 0;
msh->fd = mem->fd;
msh->offset = data_size * i;
msh->size = data_size;
break;
}
case SPA_META_TYPE_RINGBUFFER:
{
SpaMetaRingbuffer *rb = p;
spa_ringbuffer_init (&rb->ringbuffer, data_sizes[0]);
break;
}
default:
break;
msh->flags = 0;
msh->fd = mem->fd;
msh->offset = data_size * i;
msh->size = data_size;
}
else if (m->type == this->core->type.meta.Ringbuffer) {
SpaMetaRingbuffer *rb = p;
spa_ringbuffer_init (&rb->ringbuffer, data_sizes[0]);
}
p += m->size;
}
@ -347,7 +339,7 @@ alloc_buffers (PinosLink *this,
d->chunk = &cdp[j];
if (data_sizes[j] > 0) {
d->type = SPA_DATA_TYPE_MEMFD;
d->type = this->core->type.data.MemFd;
d->flags = 0;
d->fd = mem->fd;
d->mapoffset = SPA_PTRDIFF (ddp, mem->ptr);
@ -358,7 +350,7 @@ alloc_buffers (PinosLink *this,
d->chunk->stride = data_strides[j];
ddp += data_sizes[j];
} else {
d->type = SPA_DATA_TYPE_INVALID;
d->type = SPA_ID_INVALID;
d->data = NULL;
}
}
@ -375,7 +367,7 @@ do_allocation (PinosLink *this, uint32_t in_state, uint32_t out_state)
SpaPortInfoFlags in_flags, out_flags;
char *error = NULL;
if (in_state != SPA_PORT_STATE_READY && out_state != SPA_PORT_STATE_READY)
if (in_state != PINOS_PORT_STATE_READY && out_state != PINOS_PORT_STATE_READY)
return SPA_RESULT_OK;
pinos_link_update_state (this, PINOS_LINK_STATE_ALLOCATING, NULL);
@ -406,7 +398,7 @@ do_allocation (PinosLink *this, uint32_t in_state, uint32_t out_state)
this->input->node->live = true;
}
if (in_state == SPA_PORT_STATE_READY && out_state == SPA_PORT_STATE_READY) {
if (in_state == PINOS_PORT_STATE_READY && out_state == PINOS_PORT_STATE_READY) {
if ((out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
@ -428,10 +420,10 @@ do_allocation (PinosLink *this, uint32_t in_state, uint32_t out_state)
res = SPA_RESULT_ERROR;
goto error;
}
} else if (in_state == SPA_PORT_STATE_READY && out_state > SPA_PORT_STATE_READY) {
} else if (in_state == PINOS_PORT_STATE_READY && out_state > PINOS_PORT_STATE_READY) {
out_flags &= ~SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags &= ~SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else if (out_state == SPA_PORT_STATE_READY && in_state > SPA_PORT_STATE_READY) {
} else if (out_state == PINOS_PORT_STATE_READY && in_state > PINOS_PORT_STATE_READY) {
in_flags &= ~SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
out_flags &= ~SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else {
@ -450,8 +442,8 @@ do_allocation (PinosLink *this, uint32_t in_state, uint32_t out_state)
uint32_t max_buffers;
size_t minsize = 1024, stride = 0;
in_me = find_meta_enable (this->core, iinfo, SPA_META_TYPE_RINGBUFFER);
out_me = find_meta_enable (this->core, oinfo, SPA_META_TYPE_RINGBUFFER);
in_me = find_meta_enable (this->core, iinfo, this->core->type.meta.Ringbuffer);
out_me = find_meta_enable (this->core, oinfo, this->core->type.meta.Ringbuffer);
if (in_me && out_me) {
uint32_t ms1, ms2, s1, s2;
max_buffers = 1;
@ -631,18 +623,18 @@ do_start (PinosLink *this, uint32_t in_state, uint32_t out_state)
SpaResult res = SPA_RESULT_OK;
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
if (in_state < SPA_PORT_STATE_PAUSED || out_state < SPA_PORT_STATE_PAUSED)
if (in_state < PINOS_PORT_STATE_PAUSED || out_state < PINOS_PORT_STATE_PAUSED)
return SPA_RESULT_OK;
else if (in_state == SPA_PORT_STATE_STREAMING && out_state == SPA_PORT_STATE_STREAMING) {
else if (in_state == PINOS_PORT_STATE_STREAMING && out_state == PINOS_PORT_STATE_STREAMING) {
pinos_link_update_state (this, PINOS_LINK_STATE_RUNNING, NULL);
} else {
pinos_link_update_state (this, PINOS_LINK_STATE_PAUSED, NULL);
if (in_state == SPA_PORT_STATE_PAUSED) {
if (in_state == PINOS_PORT_STATE_PAUSED) {
res = pinos_node_set_state (this->input->node, PINOS_NODE_STATE_RUNNING);
pinos_work_queue_add (impl->work, this->input->node, res, complete_streaming, this->input);
}
if (out_state == SPA_PORT_STATE_PAUSED) {
if (out_state == PINOS_PORT_STATE_PAUSED) {
res = pinos_node_set_state (this->output->node, PINOS_NODE_STATE_RUNNING);
pinos_work_queue_add (impl->work, this->output->node, res, complete_streaming, this->output);
}
@ -940,7 +932,7 @@ clear_port_buffers (PinosLink *link, PinosPort *port)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (link, PinosLinkImpl, this);
if (impl->buffer_owner != port && port->state > SPA_PORT_STATE_READY) {
if (impl->buffer_owner != port && port->state > PINOS_PORT_STATE_READY) {
pinos_log_debug ("link %p: clear buffers on port %p", link, port);
spa_node_port_use_buffers (port->node->node,
port->direction,
@ -948,7 +940,7 @@ clear_port_buffers (PinosLink *link, PinosPort *port)
NULL, 0);
port->buffers = NULL;
port->n_buffers = 0;
port->state = SPA_PORT_STATE_READY;
port->state = PINOS_PORT_STATE_READY;
pinos_log_debug ("port %p: state READY", port);
}
}

View file

@ -208,7 +208,7 @@ suspend_node (PinosNode *this)
if (p->allocated)
pinos_memblock_free (&p->buffer_mem);
p->allocated = false;
p->state = SPA_PORT_STATE_CONFIGURE;
p->state = PINOS_PORT_STATE_CONFIGURE;
}
spa_list_for_each (p, &this->output_ports, link) {
@ -219,7 +219,7 @@ suspend_node (PinosNode *this)
if (p->allocated)
pinos_memblock_free (&p->buffer_mem);
p->allocated = false;
p->state = SPA_PORT_STATE_CONFIGURE;
p->state = PINOS_PORT_STATE_CONFIGURE;
}
return res;
}

View file

@ -48,7 +48,7 @@ pinos_port_new (PinosNode *node,
this->node = node;
this->direction = direction;
this->port_id = port_id;
this->state = SPA_PORT_STATE_CONFIGURE;
this->state = PINOS_PORT_STATE_CONFIGURE;
this->io.status = SPA_RESULT_OK;
this->io.buffer_id = SPA_ID_INVALID;
@ -205,14 +205,14 @@ pinos_port_pause_rt (PinosPort *port)
SpaCommand cmd = SPA_COMMAND_INIT (port->node->core->type.command_node.Pause);
SpaResult res;
if (port->state <= SPA_PORT_STATE_PAUSED)
if (port->state <= PINOS_PORT_STATE_PAUSED)
return SPA_RESULT_OK;
res = spa_node_port_send_command (port->node->node,
port->direction,
port->port_id,
&cmd);
port->state = SPA_PORT_STATE_PAUSED;
port->state = PINOS_PORT_STATE_PAUSED;
pinos_log_debug ("port %p: state PAUSED", port);
return res;
}
@ -244,7 +244,7 @@ do_remove_link_done (SpaLoop *loop,
}
}
if (!port->allocated && port->state > SPA_PORT_STATE_READY) {
if (!port->allocated && port->state > PINOS_PORT_STATE_READY) {
pinos_log_debug ("port %p: clear buffers on port", port);
spa_node_port_use_buffers (port->node->node,
port->direction,
@ -252,7 +252,7 @@ do_remove_link_done (SpaLoop *loop,
NULL, 0);
port->buffers = NULL;
port->n_buffers = 0;
port->state = SPA_PORT_STATE_READY;
port->state = PINOS_PORT_STATE_READY;
pinos_log_debug ("port %p: state READY", port);
}
@ -324,7 +324,7 @@ do_clear_buffers_done (SpaLoop *loop,
PinosPort *port = user_data;
SpaResult res;
if (port->state <= SPA_PORT_STATE_READY)
if (port->state <= PINOS_PORT_STATE_READY)
return SPA_RESULT_OK;
pinos_log_debug ("port %p: clear buffers finish", port);
@ -334,7 +334,7 @@ do_clear_buffers_done (SpaLoop *loop,
NULL, 0);
port->buffers = NULL;
port->n_buffers = 0;
port->state = SPA_PORT_STATE_READY;
port->state = PINOS_PORT_STATE_READY;
pinos_log_debug ("port %p: state READY", port);
return res;

View file

@ -37,6 +37,15 @@ typedef struct _PinosPort PinosPort;
#include <pinos/server/core.h>
#include <pinos/server/link.h>
typedef enum {
PINOS_PORT_STATE_ERROR = -1,
PINOS_PORT_STATE_INIT = 0,
PINOS_PORT_STATE_CONFIGURE = 1,
PINOS_PORT_STATE_READY = 2,
PINOS_PORT_STATE_PAUSED = 3,
PINOS_PORT_STATE_STREAMING = 4,
} PinosPortState;
struct _PinosPort {
SpaList link;
@ -45,7 +54,7 @@ struct _PinosPort {
PinosNode *node;
PinosDirection direction;
uint32_t port_id;
uint32_t state;
PinosPortState state;
SpaPortIO io;
bool allocated;

View file

@ -658,7 +658,7 @@ client_node_marshal_add_mem (void *object,
SpaDirection direction,
uint32_t port_id,
uint32_t mem_id,
SpaDataType type,
uint32_t type,
int memfd,
uint32_t flags,
uint32_t offset,
@ -675,7 +675,7 @@ client_node_marshal_add_mem (void *object,
SPA_POD_TYPE_INT, direction,
SPA_POD_TYPE_INT, port_id,
SPA_POD_TYPE_INT, mem_id,
SPA_POD_TYPE_INT, type,
SPA_POD_TYPE_ID, type,
SPA_POD_TYPE_INT, pinos_connection_add_fd (connection, memfd),
SPA_POD_TYPE_INT, flags,
SPA_POD_TYPE_INT, offset,
@ -720,14 +720,14 @@ client_node_marshal_use_buffers (void *object,
for (j = 0; j < buf->n_metas; j++) {
SpaMeta *m = &buf->metas[j];
spa_pod_builder_add (&b.b,
SPA_POD_TYPE_INT, m->type,
SPA_POD_TYPE_ID, m->type,
SPA_POD_TYPE_INT, m->size, 0);
}
spa_pod_builder_add (&b.b, SPA_POD_TYPE_INT, buf->n_datas, 0);
for (j = 0; j < buf->n_datas; j++) {
SpaData *d = &buf->datas[j];
spa_pod_builder_add (&b.b,
SPA_POD_TYPE_INT, d->type,
SPA_POD_TYPE_ID, d->type,
SPA_POD_TYPE_INT, SPA_PTR_TO_UINT32 (d->data),
SPA_POD_TYPE_INT, d->flags,
SPA_POD_TYPE_INT, d->mapoffset,
@ -865,6 +865,7 @@ client_node_demarshal_port_update (void *object,
if (!spa_pod_iter_pod (&it2, ipod) ||
!spa_pod_iter_get (&it2,
SPA_POD_TYPE_INT, &info.flags,
SPA_POD_TYPE_INT, &info.rate,
SPA_POD_TYPE_LONG, &info.maxbuffering,
SPA_POD_TYPE_LONG, &info.latency,
SPA_POD_TYPE_INT, &info.n_params,