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control: rework for spa_io_sequence

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Put a pw_control object on all ports that support control messages.
Allow linking of control objects (and thus ports).
Make export-sink generate control messages to update the contrast
property.
This commit is contained in:
Wim Taymans 2018-08-30 09:54:54 +02:00
parent 2631db14a8
commit 05d3502c84
7 changed files with 149 additions and 93 deletions
Download patch file Download diff file Expand all files Collapse all files

122
spa/plugins/v4l2/v4l2-source.c
View file

@ -32,6 +32,8 @@
#include <spa/param/video/format-utils.h>
#include <spa/param/param.h>
#include <spa/pod/filter.h>
#include <spa/control/control.h>
#include <spa/debug/pod.h>
#define NAME "v4l2-source"
@ -69,7 +71,6 @@ struct control {
uint32_t id;
uint32_t ctrl_id;
double value;
double *io;
};
struct port {
@ -110,6 +111,7 @@ struct port {
struct spa_port_info info;
struct spa_io_buffers *io;
struct spa_io_clock *clock;
struct spa_io_sequence *control;
};
struct impl {
@ -509,11 +511,6 @@ static int impl_node_port_enum_params(struct spa_node *node,
return 0;
}
break;
#if 0
else if (id == t->param_io.idPropsIn) {
return spa_v4l2_enum_controls(this, index, filter, result, builder);
}
#endif
case SPA_PARAM_IO:
switch (*index) {
case 0:
@ -528,6 +525,12 @@ static int impl_node_port_enum_params(struct spa_node *node,
":", SPA_PARAM_IO_id, "I", SPA_IO_Clock,
":", SPA_PARAM_IO_size, "i", sizeof(struct spa_io_clock));
break;
case 2:
param = spa_pod_builder_object(&b,
SPA_TYPE_OBJECT_ParamIO, id,
":", SPA_PARAM_IO_id, "I", SPA_IO_Control,
":", SPA_PARAM_IO_size, "i", sizeof(struct spa_io_sequence));
break;
default:
return 0;
}
@ -703,6 +706,7 @@ impl_node_port_alloc_buffers(struct spa_node *node,
return res;
}
#if 0
static struct control *find_control(struct port *port, uint32_t id)
{
int i;
@ -713,6 +717,7 @@ static struct control *find_control(struct port *port, uint32_t id)
}
return NULL;
}
#endif
static int impl_node_port_set_io(struct spa_node *node,
enum spa_direction direction,
@ -722,7 +727,6 @@ static int impl_node_port_set_io(struct spa_node *node,
{
struct impl *this;
struct port *port;
struct control *control;
spa_return_val_if_fail(node != NULL, -EINVAL);
@ -732,21 +736,19 @@ static int impl_node_port_set_io(struct spa_node *node,
port = GET_PORT(this, direction, port_id);
if (id == SPA_IO_Buffers) {
switch (id) {
case SPA_IO_Buffers:
port->io = data;
}
else if (id == SPA_IO_Clock) {
break;
case SPA_IO_Clock:
port->clock = data;
}
else if ((control = find_control(port, id))) {
if (data && size >= sizeof(struct spa_pod_double))
control->io = &SPA_POD_VALUE(struct spa_pod_double, data);
else
control->io = &control->value;
}
else
break;
case SPA_IO_Control:
port->control = data;
break;
default:
return -ENOENT;
}
return 0;
}
@ -779,10 +781,69 @@ static int impl_node_port_send_command(struct spa_node *node,
return -ENOTSUP;
}
static uint32_t prop_to_control_id(uint32_t prop)
{
switch (prop) {
case SPA_PROP_brightness:
return V4L2_CID_BRIGHTNESS;
case SPA_PROP_contrast:
return V4L2_CID_CONTRAST;
case SPA_PROP_saturation:
return V4L2_CID_SATURATION;
case SPA_PROP_hue:
return V4L2_CID_HUE;
case SPA_PROP_gamma:
return V4L2_CID_GAMMA;
case SPA_PROP_exposure:
return V4L2_CID_EXPOSURE;
case SPA_PROP_gain:
return V4L2_CID_GAIN;
case SPA_PROP_sharpness:
return V4L2_CID_SHARPNESS;
default:
return 0;
}
}
static int process_control(struct impl *this, struct port *port, struct spa_pod_sequence *control)
{
struct spa_pod_control *c;
SPA_POD_SEQUENCE_FOREACH(control, c) {
switch (c->type) {
case SPA_CONTROL_Properties:
{
struct spa_pod *pod;
struct spa_pod_object *obj = (struct spa_pod_object *) &c->value;
SPA_POD_OBJECT_FOREACH(obj, pod) {
struct spa_pod_prop *prop = (struct spa_pod_prop *)pod;
struct v4l2_control c;
uint32_t control_id;
if ((control_id = prop_to_control_id(prop->body.key)) == 0)
continue;
memset (&c, 0, sizeof (c));
c.id = control_id;
c.value = SPA_POD_VALUE(struct spa_pod_float, &prop->body.value);
if (ioctl(port->fd, VIDIOC_S_CTRL, &c) < 0)
spa_log_error(port->log, "VIDIOC_S_CTRL %m");
}
break;
}
default:
break;
}
}
return 0;
}
static int impl_node_process(struct spa_node *node)
{
struct impl *this;
int i, res;
int res;
struct spa_io_buffers *io;
struct port *port;
struct buffer *b;
@ -797,6 +858,9 @@ static int impl_node_process(struct spa_node *node)
spa_log_trace(port->log, NAME " %p; status %d", node, io->status);
if (port->control)
process_control(this, port, &port->control->sequence);
if (io->status == SPA_STATUS_HAVE_BUFFER)
return SPA_STATUS_HAVE_BUFFER;
@ -806,25 +870,7 @@ static int impl_node_process(struct spa_node *node)
io->buffer_id = SPA_ID_INVALID;
}
for (i = 0; i < port->n_controls; i++) {
struct control *control = &port->controls[i];
if (control->io == NULL)
continue;
if (control->value != *control->io) {
struct v4l2_control c;
memset (&c, 0, sizeof (c));
c.id = control->ctrl_id;
c.value = *control->io;
if (ioctl(port->fd, VIDIOC_S_CTRL, &c) < 0)
spa_log_error(port->log, "VIDIOC_S_CTRL %m");
control->value = *control->io = c.value;
}
}
if (spa_list_is_empty(&port->queue))
return -EPIPE;

58
src/examples/export-sink.c
View file

@ -24,7 +24,9 @@
#include <spa/param/video/format-utils.h>
#include <spa/param/props.h>
#include <spa/node/io.h>
#include <spa/control/control.h>
#include <spa/debug/format.h>
#include <spa/debug/pod.h>
#include <pipewire/pipewire.h>
#include <pipewire/module.h>
@ -74,7 +76,8 @@ struct data {
const struct spa_node_callbacks *callbacks;
void *callbacks_data;
struct spa_io_buffers *io;
struct spa_pod_double *ctrl_param;
struct spa_io_sequence *io_notify;
uint32_t io_notify_size;
double param_accum;
uint8_t buffer[1024];
@ -103,10 +106,17 @@ static void handle_events(struct data *data)
static void update_param(struct data *data)
{
if (data->ctrl_param == NULL)
struct spa_pod_builder b = { 0, };
if (data->io_notify == NULL)
return;
data->ctrl_param->value = (sin(data->param_accum) * 127.0) + 127.0;
spa_pod_builder_init(&b, data->io_notify, data->io_notify_size);
spa_pod_builder_sequence(&b, 0,
".", 0, SPA_CONTROL_Properties,
SPA_POD_OBJECT(SPA_TYPE_OBJECT_Props, 0,
":", SPA_PROP_contrast, "f", (sin(data->param_accum) * 127.0) + 127.0));
data->param_accum += M_PI_M2 / 30.0;
if (data->param_accum >= M_PI_M2)
data->param_accum -= M_PI_M2;
@ -154,19 +164,17 @@ static int impl_port_set_io(struct spa_node *node,
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
if (id == SPA_IO_Buffers)
switch (id) {
case SPA_IO_Buffers:
d->io = data;
#if 0
else if (id == d->type.io_prop_param) {
if (data && size >= sizeof(struct spa_pod_double))
d->ctrl_param = data;
else
d->ctrl_param = NULL;
}
#endif
else
break;
case SPA_IO_Notify:
d->io_notify = data;
d->io_notify_size = size;
break;
default:
return -ENOENT;
}
return 0;
}
@ -273,25 +281,25 @@ static int impl_port_enum_params(struct spa_node *node,
return 0;
}
break;
#if 0
else if (id == t->param_io.idPropsOut) {
struct props *p = &d->props;
case SPA_PARAM_IO:
switch (*index) {
case 0:
param = spa_pod_builder_object(builder,
id, t->param_io.Prop,
":", t->param_io.id, "I", d->type.io_prop_param,
":", t->param_io.size, "i", sizeof(struct spa_pod_double),
":", t->param.propId, "I", d->type.prop_param,
":", t->param.propType, "dru", p->param,
SPA_POD_PROP_MIN_MAX(0.0, 10.0));
SPA_TYPE_OBJECT_ParamIO, id,
":", SPA_PARAM_IO_id, "I", SPA_IO_Buffers,
":", SPA_PARAM_IO_size, "i", sizeof(struct spa_io_buffers));
break;
case 1:
param = spa_pod_builder_object(builder,
SPA_TYPE_OBJECT_ParamIO, id,
":", SPA_PARAM_IO_id, "I", SPA_IO_Notify,
":", SPA_PARAM_IO_size, "i", sizeof(struct spa_io_sequence) + 1024);
break;
default:
return 0;
}
}
#endif
break;
default:
return -ENOENT;
}

4
src/modules/module-client-node/client-stream.c
View file

@ -559,7 +559,7 @@ static void try_link_controls(struct impl *impl, struct pw_port *port, struct pw
pw_log_debug("module %p: trying controls", impl);
spa_list_for_each(cout, &port->control_list[SPA_DIRECTION_OUTPUT], port_link) {
spa_list_for_each(cin, &target->control_list[SPA_DIRECTION_INPUT], port_link) {
if (cin->prop_id == cout->prop_id) {
if (cin->id != cout->id) {
if ((res = pw_control_link(cout, cin)) < 0)
pw_log_error("failed to link controls: %s", spa_strerror(res));
}
@ -567,7 +567,7 @@ static void try_link_controls(struct impl *impl, struct pw_port *port, struct pw
}
spa_list_for_each(cin, &port->control_list[SPA_DIRECTION_INPUT], port_link) {
spa_list_for_each(cout, &target->control_list[SPA_DIRECTION_OUTPUT], port_link) {
if (cin->prop_id == cout->prop_id) {
if (cin->id != cout->id) {
if ((res = pw_control_link(cout, cin)) < 0)
pw_log_error("failed to link controls: %s", spa_strerror(res));
}

4
src/modules/module-media-session.c
View file

@ -212,7 +212,7 @@ static void try_link_controls(struct impl *impl, struct pw_port *port, struct pw
pw_log_debug("module %p: trying controls", impl);
spa_list_for_each(cout, &port->control_list[SPA_DIRECTION_OUTPUT], port_link) {
spa_list_for_each(cin, &target->control_list[SPA_DIRECTION_INPUT], port_link) {
if (cin->prop_id == cout->prop_id) {
if (cin->id != cout->id) {
if ((res = pw_control_link(cout, cin)) < 0)
pw_log_error("failed to link controls: %s", spa_strerror(res));
}
@ -220,7 +220,7 @@ static void try_link_controls(struct impl *impl, struct pw_port *port, struct pw
}
spa_list_for_each(cin, &port->control_list[SPA_DIRECTION_INPUT], port_link) {
spa_list_for_each(cout, &target->control_list[SPA_DIRECTION_OUTPUT], port_link) {
if (cin->prop_id == cout->prop_id) {
if (cin->id != cout->id) {
if ((res = pw_control_link(cout, cin)) < 0)
pw_log_error("failed to link controls: %s", spa_strerror(res));
}

46
src/pipewire/control.c
View file

@ -38,27 +38,34 @@ pw_control_new(struct pw_core *core,
struct impl *impl;
struct pw_control *this;
enum spa_direction direction;
uint32_t id, size;
if (spa_pod_object_parse(param,
":", SPA_PARAM_IO_id, "I", &id,
":", SPA_PARAM_IO_size, "i", &size) < 0)
goto exit;
switch (id) {
case SPA_IO_Control:
direction = SPA_DIRECTION_INPUT;
break;
case SPA_IO_Notify:
direction = SPA_DIRECTION_OUTPUT;
break;
default:
goto exit;
}
impl = calloc(1, sizeof(struct impl) + user_data_size);
if (impl == NULL)
goto exit;
this = &impl->this;
direction = SPA_DIRECTION_OUTPUT;
#if 0
direction = spa_pod_is_object_id(param, SPA_PARAM_PropsOut) ?
SPA_DIRECTION_OUTPUT : SPA_DIRECTION_INPUT;
if (spa_pod_object_parse(param,
":", t->param_io.id, "I", &this->id,
":", t->param_io.size, "i", &this->size,
":", t->param.propId, "I", &this->prop_id) < 0)
goto exit_free;
#endif
this->id = id;
this->size = size;
pw_log_debug("control %p: new %s %d", this,
spa_debug_type_find_name(spa_debug_types, this->prop_id), direction);
spa_debug_type_find_name(spa_types, this->id), direction);
this->core = core;
this->port = port;
@ -80,8 +87,6 @@ pw_control_new(struct pw_core *core,
return this;
// exit_free:
// free(impl);
exit:
return NULL;
}
@ -141,6 +146,7 @@ int pw_control_link(struct pw_control *control, struct pw_control *other)
{
int res = 0;
struct impl *impl;
uint32_t size;
if (control->direction == SPA_DIRECTION_INPUT) {
struct pw_control *tmp = control;
@ -158,13 +164,15 @@ int pw_control_link(struct pw_control *control, struct pw_control *other)
impl = SPA_CONTAINER_OF(control, struct impl, this);
pw_log_debug("control %p: link to %p %s", control, other,
spa_debug_type_find_name(spa_debug_types, control->prop_id));
spa_debug_type_find_name(spa_debug_types, control->id));
size = SPA_MAX(control->size, other->size);
if (impl->mem == NULL) {
if ((res = pw_memblock_alloc(PW_MEMBLOCK_FLAG_WITH_FD |
PW_MEMBLOCK_FLAG_SEAL |
PW_MEMBLOCK_FLAG_MAP_READWRITE,
control->size,
size,
&impl->mem)) < 0)
goto exit;
@ -175,7 +183,7 @@ int pw_control_link(struct pw_control *control, struct pw_control *other)
if ((res = spa_node_port_set_io(port->node->node,
port->direction, port->port_id,
other->id,
impl->mem->ptr, control->size)) < 0) {
impl->mem->ptr, size)) < 0) {
pw_log_warn("control %p: set io failed %d %s", control,
res, spa_strerror(res));
goto exit;
@ -188,7 +196,7 @@ int pw_control_link(struct pw_control *control, struct pw_control *other)
if ((res = spa_node_port_set_io(port->node->node,
port->direction, port->port_id,
control->id,
impl->mem->ptr, control->size)) < 0) {
impl->mem->ptr, size)) < 0) {
pw_log_warn("control %p: set io failed %d %s", control,
res, spa_strerror(res));
/* undo */

7
src/pipewire/port.c
View file

@ -341,7 +341,6 @@ static int do_add_port(struct spa_loop *loop,
return 0;
}
#if 0
static int make_control(void *data, uint32_t id, uint32_t index, uint32_t next, struct spa_pod *param)
{
struct pw_port *port = data;
@ -349,7 +348,6 @@ static int make_control(void *data, uint32_t id, uint32_t index, uint32_t next,
pw_control_new(node->core, port, param, 0);
return 0;
}
#endif
static void port_unbind_func(void *data)
{
@ -526,10 +524,7 @@ int pw_port_add(struct pw_port *port, struct pw_node *node)
node->info.change_mask |= PW_NODE_CHANGE_MASK_OUTPUT_PORTS;
}
#if 0
pw_port_for_each_param(port, SPA_PARAM_PropsOut, 0, 0, NULL, make_control, port);
pw_port_for_each_param(port, SPA_PARAM_PropsIn, 0, 0, NULL, make_control, port);
#endif
pw_port_for_each_param(port, SPA_PARAM_IO, 0, 0, NULL, make_control, port);
pw_log_debug("port %p: setting node io", port);
spa_node_port_set_io(node->node,

1
src/pipewire/private.h
View file

@ -627,7 +627,6 @@ struct pw_control {
struct spa_list inputs_link; /**< link in linked input control */
uint32_t id;
uint32_t prop_id;
int32_t size;
struct spa_hook_list listener_list;