libs: codecobject: Add number of elements when create codec object.

One slice data may need several slice parameter buffers at one time.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/191>

gst-libs/gst/vaapi/gstvaapicodec_objects.c

@@ -68,9 +68,10 @@ gst_vaapi_codec_object_create (GstVaapiCodecObject * object,
 }
 
 GstVaapiCodecObject *
-gst_vaapi_codec_object_new (const GstVaapiCodecObjectClass * object_class,
+gst_vaapi_codec_object_new_with_param_num (const GstVaapiCodecObjectClass *
-    GstVaapiCodecBase * codec, gconstpointer param, guint param_size,
+    object_class, GstVaapiCodecBase * codec, gconstpointer param,
-    gconstpointer data, guint data_size, guint flags)
+    guint param_size, guint param_num, gconstpointer data,
+    guint data_size, guint flags)
 {
   GstVaapiCodecObject *obj;
   GstVaapiCodecObjectConstructorArgs args;
@@ -85,6 +86,7 @@ gst_vaapi_codec_object_new (const GstVaapiCodecObjectClass * object_class,
 
   args.param = param;
   args.param_size = param_size;
+  args.param_num = param_num;
   args.data = data;
   args.data_size = data_size;
   args.flags = flags;
@@ -96,6 +98,15 @@ gst_vaapi_codec_object_new (const GstVaapiCodecObjectClass * object_class,
   return NULL;
 }
 
+GstVaapiCodecObject *
+gst_vaapi_codec_object_new (const GstVaapiCodecObjectClass * object_class,
+    GstVaapiCodecBase * codec, gconstpointer param, guint param_size,
+    gconstpointer data, guint data_size, guint flags)
+{
+  return gst_vaapi_codec_object_new_with_param_num (object_class, codec, param,
+      param_size, 1, data, data_size, flags);
+}
+
 #define GET_DECODER(obj)    GST_VAAPI_DECODER_CAST((obj)->parent_instance.codec)
 #define GET_VA_DISPLAY(obj) GET_DECODER(obj)->va_display
 #define GET_VA_CONTEXT(obj) GET_DECODER(obj)->va_context

gst-libs/gst/vaapi/gstvaapicodec_objects.h

@@ -59,6 +59,7 @@ typedef struct
 {
   gconstpointer param;
   guint param_size;
+  guint param_num;
   gconstpointer data;
   guint data_size;
   guint flags;
@@ -105,6 +106,13 @@ gst_vaapi_codec_object_new (const GstVaapiCodecObjectClass * object_class,
     GstVaapiCodecBase * codec, gconstpointer param, guint param_size,
     gconstpointer data, guint data_size, guint flags);
 
+G_GNUC_INTERNAL
+GstVaapiCodecObject *
+gst_vaapi_codec_object_new_with_param_num (const GstVaapiCodecObjectClass *
+    object_class, GstVaapiCodecBase * codec, gconstpointer param,
+    guint param_size, guint param_num, gconstpointer data,
+    guint data_size, guint flags);
+
 #define gst_vaapi_codec_object_ref(object) \
   ((gpointer) gst_vaapi_mini_object_ref (GST_VAAPI_MINI_OBJECT (object)))
 

gst-libs/gst/vaapi/gstvaapidecoder_objects.c

@@ -457,9 +457,10 @@ gst_vaapi_slice_create (GstVaapiSlice * slice,
   if (!success)
     return FALSE;
 
-  success = vaapi_create_buffer (GET_VA_DISPLAY (slice), GET_VA_CONTEXT (slice),
+  g_assert (args->param_num >= 1);
-      VASliceParameterBufferType, args->param_size, args->param,
+  success = vaapi_create_n_elements_buffer (GET_VA_DISPLAY (slice),
-      &slice->param_id, &slice->param);
+      GET_VA_CONTEXT (slice), VASliceParameterBufferType, args->param_size,
+      args->param, &slice->param_id, &slice->param, args->param_num);
   if (!success)
     return FALSE;
 
@@ -480,3 +481,16 @@ gst_vaapi_slice_new (GstVaapiDecoder * decoder,
       GST_VAAPI_CODEC_BASE (decoder), param, param_size, data, data_size, 0);
   return GST_VAAPI_SLICE_CAST (object);
 }
+
+GstVaapiSlice *
+gst_vaapi_slice_new_n_params (GstVaapiDecoder * decoder,
+    gconstpointer param, guint param_size, guint param_num, const guchar * data,
+    guint data_size)
+{
+  GstVaapiCodecObject *object;
+
+  object = gst_vaapi_codec_object_new_with_param_num (&GstVaapiSliceClass,
+      GST_VAAPI_CODEC_BASE (decoder), param, param_size, param_num, data,
+      data_size, 0);
+  return GST_VAAPI_SLICE_CAST (object);
+}

gst-libs/gst/vaapi/gstvaapidecoder_objects.h

@@ -260,6 +260,12 @@ GstVaapiSlice *
 gst_vaapi_slice_new (GstVaapiDecoder * decoder, gconstpointer param,
     guint param_size, const guchar * data, guint data_size);
 
+G_GNUC_INTERNAL
+GstVaapiSlice *
+gst_vaapi_slice_new_n_params (GstVaapiDecoder * decoder,
+    gconstpointer param, guint param_size, guint param_num, const guchar * data,
+    guint data_size);
+
 /* ------------------------------------------------------------------------- */
 /* --- Helpers to create codec-dependent objects                         --- */
 /* ------------------------------------------------------------------------- */
@@ -273,6 +279,11 @@ gst_vaapi_slice_new (GstVaapiDecoder * decoder, gconstpointer param,
       NULL, sizeof (G_PASTE (VASliceParameterBuffer, codec)),   \
       buf, buf_size)
 
+#define GST_VAAPI_SLICE_NEW_N_PARAMS(codec, decoder, buf, buf_size, n) \
+  gst_vaapi_slice_new_n_params (GST_VAAPI_DECODER_CAST (decoder),    \
+      NULL, sizeof (G_PASTE (VASliceParameterBuffer, codec)), n,     \
+      buf, buf_size)
+
 G_END_DECLS
 
 #endif /* GST_VAAPI_DECODER_OBJECTS_H */