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media-session: ensure unique device.name

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See #525
This commit is contained in:
Wim Taymans 2021-01-02 19:52:14 +01:00
parent e871b761fe
commit 498b4bd080
2 changed files with 55 additions and 9 deletions
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31
src/examples/media-session/v4l2-monitor.c
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@ -90,13 +90,18 @@ struct impl {
struct spa_list device_list;
};
static struct node *v4l2_find_node(struct device *dev, uint32_t id)
static struct node *v4l2_find_node(struct device *dev, uint32_t id, const char *name)
{
struct node *node;
const char *str;
spa_list_for_each(node, &dev->node_list, link) {
if (node->id == id)
return node;
if (name != NULL &&
(str = pw_properties_get(node->props, PW_KEY_NODE_NAME)) != NULL &&
strcmp(name, str) == 0)
return node;
}
return NULL;
}
@ -203,7 +208,7 @@ static void v4l2_device_object_info(void *data, uint32_t id,
struct device *dev = data;
struct node *node;
node = v4l2_find_node(dev, id);
node = v4l2_find_node(dev, id, NULL);
if (info == NULL) {
if (node == NULL) {
@ -224,13 +229,18 @@ static const struct spa_device_events v4l2_device_events = {
.object_info = v4l2_device_object_info
};
static struct device *v4l2_find_device(struct impl *impl, uint32_t id)
static struct device *v4l2_find_device(struct impl *impl, uint32_t id, const char *name)
{
struct device *dev;
const char *str;
spa_list_for_each(dev, &impl->device_list, link) {
if (dev->id == id)
return dev;
if (name != NULL &&
(str = pw_properties_get(dev->props, PW_KEY_DEVICE_NAME)) != NULL &&
strcmp(str, name) == 0)
return dev;
}
return NULL;
}
@ -251,6 +261,7 @@ static int v4l2_update_device_props(struct device *dev)
struct pw_properties *p = dev->props;
const char *s, *d;
char temp[32];
int i;
if ((s = pw_properties_get(p, SPA_KEY_DEVICE_NAME)) == NULL) {
if ((s = pw_properties_get(p, SPA_KEY_DEVICE_BUS_ID)) == NULL) {
@ -262,6 +273,18 @@ static int v4l2_update_device_props(struct device *dev)
}
pw_properties_setf(p, PW_KEY_DEVICE_NAME, "v4l2_device.%s", s);
for (i = 2; i <= 99; i++) {
if ((d = pw_properties_get(p, PW_KEY_DEVICE_NAME)) == NULL)
break;
if (v4l2_find_device(dev->impl, SPA_ID_INVALID, d) == NULL)
break;
pw_properties_setf(p, PW_KEY_DEVICE_NAME, "v4l2_device.%s.%d", s, i);
}
if (i == 99)
return -EEXIST;
if (pw_properties_get(p, PW_KEY_DEVICE_DESCRIPTION) == NULL) {
d = pw_properties_get(p, PW_KEY_DEVICE_PRODUCT_NAME);
if (!d)
@ -425,7 +448,7 @@ static void v4l2_udev_object_info(void *data, uint32_t id,
struct impl *impl = data;
struct device *dev;
dev = v4l2_find_device(impl, id);
dev = v4l2_find_device(impl, id, NULL);
if (info == NULL) {
if (dev == NULL)