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webcam: still errors

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This commit is contained in:
Thomas Farstrike
2025-05-13 17:13:22 +02:00
parent b488887746
commit 5ac6c7ba62
1 changed files with 24 additions and 3 deletions
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c_mpos/src/webcam.c
+24 -3
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@@ -33,7 +33,8 @@ typedef struct _webcam_obj_t {
bool streaming; // Streaming state
} webcam_obj_t;
const mp_obj_type_t webcam_type;
// Forward declaration of the webcam type
static const mp_obj_type_t webcam_type;
// Convert YUYV to grayscale (extract Y component)
static void yuyv_to_grayscale(uint8_t *src, uint8_t *dst, size_t width, size_t height) {
@@ -182,6 +183,12 @@ static mp_obj_t webcam_capture_grayscale(mp_obj_t self_in) {
// Clean up
free(resized_buf);
// Re-queue the buffer for the next capture
if (ioctl(self->fd, VIDIOC_QBUF, &buf) < 0) {
WEBCAM_DEBUG_PRINT("webcam: Failed to re-queue buffer after capture\n");
mp_raise_OSError(errno);
}
return result;
}
MP_DEFINE_CONST_FUN_OBJ_1(webcam_capture_grayscale_obj, webcam_capture_grayscale);
@@ -217,6 +224,12 @@ static mp_obj_t webcam_deinit(mp_obj_t self_in) {
}
MP_DEFINE_CONST_FUN_OBJ_1(webcam_deinit_obj, webcam_deinit);
// Make new webcam object (optional, for consistency)
static mp_obj_t webcam_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 0, 0, false);
return webcam_init();
}
// Webcam type definition
static const mp_rom_map_elem_t webcam_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_capture_grayscale), MP_ROM_PTR(&webcam_capture_grayscale_obj) },
@@ -224,10 +237,11 @@ static const mp_rom_map_elem_t webcam_locals_dict_table[] = {
};
static MP_DEFINE_CONST_DICT(webcam_locals_dict, webcam_locals_dict_table);
const mp_obj_type_t webcam_type = {
static const mp_obj_type_t webcam_type = {
{ &mp_type_type },
.name = MP_QSTR_webcam,
.locals_dict = (mp_obj_dict_t *)&webcam_locals_dict,
.make_new = webcam_make_new,
// Note: locals_dict is handled separately below
};
// Module definition
@@ -244,3 +258,10 @@ const mp_obj_module_t webcam_user_cmodule = {
// Register the module
MP_REGISTER_MODULE(MP_QSTR_webcam, webcam_user_cmodule);
// Register the locals dict for the webcam type (post-definition)
static MP_DEFINE_CONST_OBJ(webcam_locals_dict_obj, &webcam_locals_dict);
void webcam_type_init(void) {
// Dynamically set the locals_dict after type definition
*(mp_obj_t *)&webcam_type.locals_dict = MP_OBJ_FROM_PTR(&webcam_locals_dict_obj);
}