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v4l2: generate prop id for controls

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Generate a propid so that they are added as controls
This commit is contained in:
Wim Taymans 2018-02-07 11:51:51 +01:00
parent 4c1dc20eac
commit 8e89474c7e
1 changed files with 8 additions and 0 deletions
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8
spa/plugins/v4l2/v4l2-utils.c
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@ -958,6 +958,8 @@ spa_v4l2_enum_controls(struct impl *this,
struct v4l2_query_ext_ctrl queryctrl;
struct spa_pod *param;
struct spa_pod_builder b = { 0 };
char type_id[128];
uint32_t id;
uint8_t buffer[1024];
int res;
const unsigned next_fl = V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND;
@ -1005,10 +1007,14 @@ spa_v4l2_enum_controls(struct impl *this,
spa_pod_builder_init(&b, buffer, sizeof(buffer));
snprintf(type_id, sizeof(type_id), SPA_TYPE_PARAM_IO_PROP_BASE"%08x", queryctrl.id & ~next_fl);
id = spa_type_map_get_id(this->map, type_id);
switch (queryctrl.type) {
case V4L2_CTRL_TYPE_INTEGER:
param = spa_pod_builder_object(&b,
t->param_io.idPropsIn, t->param_io.Prop,
":", t->param_io.id, "I", id,
":", t->param_io.size, "i", sizeof(struct spa_pod_int),
":", t->param.propType, "isu", queryctrl.default_value,
3, queryctrl.minimum,
@ -1019,6 +1025,7 @@ spa_v4l2_enum_controls(struct impl *this,
case V4L2_CTRL_TYPE_BOOLEAN:
param = spa_pod_builder_object(&b,
t->param_io.idPropsIn, t->param_io.Prop,
":", t->param_io.id, "I", id,
":", t->param_io.size, "i", sizeof(struct spa_pod_bool),
":", t->param.propType, "b-u", queryctrl.default_value,
":", t->param.propName, "s", queryctrl.name);
@ -1029,6 +1036,7 @@ spa_v4l2_enum_controls(struct impl *this,
spa_pod_builder_push_object(&b, t->param_io.idPropsIn, t->param_io.Prop);
spa_pod_builder_add(&b,
":", t->param_io.id, "I", id,
":", t->param_io.size, "i", sizeof(struct spa_pod_int),
":", t->param.propName, "s", queryctrl.name,
NULL);