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-rw-r--r--gst-libs/gst/vaapi/gstvaapiencoder.c4
-rw-r--r--gst-libs/gst/vaapi/gstvaapiencoder_priv.h9
-rw-r--r--gst-libs/gst/vaapi/gstvaapivalue.c51
-rw-r--r--gst-libs/gst/vaapi/gstvaapivalue.h65
4 files changed, 128 insertions, 1 deletions
diff --git a/gst-libs/gst/vaapi/gstvaapiencoder.c b/gst-libs/gst/vaapi/gstvaapiencoder.c
index f2223612..1a991471 100644
--- a/gst-libs/gst/vaapi/gstvaapiencoder.c
+++ b/gst-libs/gst/vaapi/gstvaapiencoder.c
@@ -115,6 +115,8 @@ gst_vaapi_encoder_properties_get_default (const GstVaapiEncoderClass * klass)
const GstVaapiEncoderClassData *const cdata = klass->class_data;
GPtrArray *props = NULL;
+ g_assert (cdata->rate_control_get_type != NULL);
+
/**
* GstVaapiEncoder:rate-control:
*
@@ -124,7 +126,7 @@ gst_vaapi_encoder_properties_get_default (const GstVaapiEncoderClass * klass)
GST_VAAPI_ENCODER_PROP_RATECONTROL,
g_param_spec_enum ("rate-control",
"Rate Control", "Rate control mode",
- GST_VAAPI_TYPE_RATE_CONTROL, cdata->default_rate_control,
+ cdata->rate_control_get_type (), cdata->default_rate_control,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
diff --git a/gst-libs/gst/vaapi/gstvaapiencoder_priv.h b/gst-libs/gst/vaapi/gstvaapiencoder_priv.h
index d473a050..81549d58 100644
--- a/gst-libs/gst/vaapi/gstvaapiencoder_priv.h
+++ b/gst-libs/gst/vaapi/gstvaapiencoder_priv.h
@@ -27,6 +27,7 @@
#include <gst/vaapi/gstvaapicontext.h>
#include <gst/vaapi/gstvaapivideopool.h>
#include <gst/video/gstvideoutils.h>
+#include <gst/vaapi/gstvaapivalue.h>
G_BEGIN_DECLS
@@ -197,13 +198,21 @@ struct _GstVaapiEncoderClassData
/*< private >*/
GstVaapiCodec codec;
+ GType (*rate_control_get_type)(void);
GstVaapiRateControl default_rate_control;
guint32 rate_control_mask;
};
#define GST_VAAPI_ENCODER_DEFINE_CLASS_DATA(CODEC) \
+ GST_VAAPI_TYPE_DEFINE_ENUM_SUBSET_FROM_MASK( \
+ G_PASTE (GstVaapiRateControl, CODEC), \
+ G_PASTE (gst_vaapi_rate_control_, CODEC), \
+ GST_VAAPI_TYPE_RATE_CONTROL, SUPPORTED_RATECONTROLS); \
+ \
static const GstVaapiEncoderClassData g_class_data = { \
.codec = G_PASTE (GST_VAAPI_CODEC_, CODEC), \
+ .rate_control_get_type = \
+ G_PASTE (G_PASTE (gst_vaapi_rate_control_, CODEC), _get_type), \
.default_rate_control = DEFAULT_RATECONTROL, \
.rate_control_mask = SUPPORTED_RATECONTROLS, \
}
diff --git a/gst-libs/gst/vaapi/gstvaapivalue.c b/gst-libs/gst/vaapi/gstvaapivalue.c
index 2f4c239b..07d99233 100644
--- a/gst-libs/gst/vaapi/gstvaapivalue.c
+++ b/gst-libs/gst/vaapi/gstvaapivalue.c
@@ -150,3 +150,54 @@ gst_vaapi_rate_control_get_type(void)
}
return g_type;
}
+
+static gboolean
+build_enum_subset_values_from_mask (GstVaapiEnumSubset *subset, guint32 mask)
+{
+ GEnumClass *enum_class;
+ const GEnumValue *value;
+ guint i, n;
+
+ enum_class = g_type_class_ref(subset->parent_type);
+ if (!enum_class)
+ return FALSE;
+
+ for (i = 0, n = 0; i < 32 && n < subset->num_values; i++) {
+ if (!(mask & (1U << i)))
+ continue;
+ value = g_enum_get_value(enum_class, i);
+ if (!value)
+ continue;
+ subset->values[n++] = *value;
+ }
+ g_type_class_unref(enum_class);
+ if (n != subset->num_values - 1)
+ goto error_invalid_num_values;
+ return TRUE;
+
+ /* ERRORS */
+error_invalid_num_values:
+ {
+ g_error("invalid number of static values for `%s'", subset->type_name);
+ return FALSE;
+ }
+}
+
+GType
+gst_vaapi_type_define_enum_subset_from_mask(GstVaapiEnumSubset *subset,
+ guint32 mask)
+{
+ if (g_once_init_enter(&subset->type)) {
+ GType type;
+
+ build_enum_subset_values_from_mask(subset, mask);
+ memset(&subset->type_info, 0, sizeof(subset->type_info));
+ g_enum_complete_type_info(subset->parent_type, &subset->type_info,
+ subset->values);
+
+ type = g_type_register_static (G_TYPE_ENUM, subset->type_name,
+ &subset->type_info, 0);
+ g_once_init_leave(&subset->type, type);
+ }
+ return subset->type;
+}
diff --git a/gst-libs/gst/vaapi/gstvaapivalue.h b/gst-libs/gst/vaapi/gstvaapivalue.h
index 4c4d7982..2f6f431b 100644
--- a/gst-libs/gst/vaapi/gstvaapivalue.h
+++ b/gst-libs/gst/vaapi/gstvaapivalue.h
@@ -92,6 +92,71 @@ gst_vaapi_rotation_get_type(void) G_GNUC_CONST;
GType
gst_vaapi_rate_control_get_type(void) G_GNUC_CONST;
+/**
+ * GST_VAAPI_POPCOUNT32:
+ * @x: the value from which to compute population count
+ *
+ * Computes the number of bits set in the supplied 32-bit value @x.
+ *
+ * Return value: the number of bits set in @x
+ */
+#define GST_VAAPI_POPCOUNT32(x) \
+ GST_VAAPI_POPCOUNT32_0(x)
+#define GST_VAAPI_POPCOUNT32_0(x) \
+ GST_VAAPI_POPCOUNT32_1((x) - (((x) >> 1) & 0x55555555))
+#define GST_VAAPI_POPCOUNT32_1(x) \
+ GST_VAAPI_POPCOUNT32_2(((x) & 0x33333333) + (((x) >> 2) & 0x33333333))
+#define GST_VAAPI_POPCOUNT32_2(x) \
+ GST_VAAPI_POPCOUNT32_3((x) + ((x) >> 4))
+#define GST_VAAPI_POPCOUNT32_3(x) \
+ GST_VAAPI_POPCOUNT32_4((x) & 0x0f0f0f0f)
+#define GST_VAAPI_POPCOUNT32_4(x) \
+ (((x) * 0x01010101) >> 24)
+
+/* --- GstVaapiEnumSubset --- */
+
+/**
+ * GstVaapiEnumSubset:
+ * @name: name of the enum subset
+ * @parent_type: parent enum type
+ * @type: registered #GType
+ * @type_info: #GTypeInfo used to build the @type
+ * @values: pointer to a static array of #GEnumValue elements
+ * @num_values: number of elements in the @values array, including the
+ * terminator
+ *
+ * Structure that holds the required information to build a GEnum
+ * subset from the supplied @parent_type, i.e. a subset of its values.
+ */
+typedef struct {
+ GType parent_type;
+ GType type;
+ GTypeInfo type_info;
+ const gchar *type_name;
+ GEnumValue *values;
+ guint num_values;
+} GstVaapiEnumSubset;
+
+G_GNUC_INTERNAL
+GType
+gst_vaapi_type_define_enum_subset_from_mask(GstVaapiEnumSubset *subset,
+ guint32 mask);
+
+#define GST_VAAPI_TYPE_DEFINE_ENUM_SUBSET_FROM_MASK(NAME, name, TYPE, MASK) \
+static GType \
+G_PASTE(name,_get_type)(void) \
+{ \
+ static GEnumValue enum_values[GST_VAAPI_POPCOUNT32(MASK) + 1]; \
+ static GstVaapiEnumSubset subset = { \
+ .type_name = G_STRINGIFY(NAME), \
+ .values = enum_values, \
+ .num_values = G_N_ELEMENTS(enum_values), \
+ }; \
+ if (g_once_init_enter(&subset.parent_type)) \
+ g_once_init_leave(&subset.parent_type, TYPE); \
+ return gst_vaapi_type_define_enum_subset_from_mask(&subset, MASK); \
+}
+
G_END_DECLS
#endif /* GST_VAAPI_VALUE_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 01:05:21 +0000