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v4l2: set a clock name

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This commit is contained in:
Wim Taymans 2024-11-27 15:12:10 +01:00
parent 45eee02a99
commit 98365470c7
1 changed files with 21 additions and 5 deletions
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26
spa/plugins/v4l2/v4l2-source.c
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@ -32,16 +32,19 @@
#include "v4l2.h"
static const char default_device[] = "/dev/video0";
static const char default_clock_name[] = "api.v4l2.unknown";
struct props {
char device[64];
char device_name[128];
int device_fd;
char clock_name[64];
};
static void reset_props(struct props *props)
{
strncpy(props->device, default_device, 64);
strncpy(props->device, default_device, sizeof(props->device));
strncpy(props->clock_name, default_clock_name, sizeof(props->clock_name));
}
#define MAX_BUFFERS 32
@ -417,8 +420,11 @@ static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
switch (id) {
case SPA_IO_Clock:
this->clock = data;
if (this->clock)
if (this->clock) {
SPA_FLAG_SET(this->clock->flags, SPA_IO_CLOCK_FLAG_NO_RATE);
spa_scnprintf(this->clock->name, sizeof(this->clock->name),
"%s", this->props.clock_name);
}
break;
case SPA_IO_Position:
this->position = data;
@ -1002,6 +1008,7 @@ impl_init(const struct spa_handle_factory *factory,
struct port *port;
uint32_t i;
int res;
bool have_clock = false;
spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(handle != NULL, -EINVAL);
@ -1073,13 +1080,22 @@ impl_init(const struct spa_handle_factory *factory,
const char *s = info->items[i].value;
if (spa_streq(k, SPA_KEY_API_V4L2_PATH)) {
strncpy(this->props.device, s, 63);
if ((res = spa_v4l2_open(&port->dev, this->props.device)) < 0)
return res;
spa_v4l2_close(&port->dev);
} else if (spa_streq(k, "meta.videotransform.transform")) {
this->transform = spa_debug_type_find_type_short(spa_type_meta_videotransform_type, s);
} else if (spa_streq(k, "clock.name")) {
spa_scnprintf(this->props.clock_name,
sizeof(this->props.clock_name), "%s", s);
have_clock = true;
}
}
if ((res = spa_v4l2_open(&port->dev, this->props.device)) < 0)
return res;
spa_v4l2_close(&port->dev);
if (!have_clock) {
spa_scnprintf(this->props.clock_name,
sizeof(this->props.clock_name), "api.v4l2.%s", port->dev.cap.bus_info);
}
return 0;
}