analytics: Move batch to GstTensor

- batch_size is required to interpret the tensor depending on the tensor format
the batch are not necessarily memory plane therefore it's preferable to keep it
inside GstTensor.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6000>

subprojects/gst-plugins-bad/ext/onnx/gstonnxclient.cpp

@@ -348,7 +348,8 @@ GstOnnxClient::GstOnnxClient (GstElement *debug_parent):debug_parent(debug_paren
         tensor->id = 0;
       auto tensorShape = outputTensor.GetTensorTypeAndShapeInfo ().GetShape ();
       tensor->num_dims = tensorShape.size ();
-      tensor->dims = g_new (int64_t, tensor->num_dims);
+      tensor->dims = g_new (gsize, tensor->num_dims);
+      tensor->batch_size = 1;
 
       for (size_t j = 0; j < tensorShape.size (); ++j)
         tensor->dims[j] = tensorShape[j];

subprojects/gst-plugins-bad/ext/onnx/gstonnxinference.cpp

@@ -587,7 +587,6 @@ gst_onnx_inference_process (GstBaseTransform * trans, GstBuffer * buf)
       if (!meta)
         return FALSE;
       GST_TRACE_OBJECT (trans, "Num tensors:%zu", meta->num_tensors);
-      meta->batch_size = 1;
     }
     catch (Ort::Exception & ortex) {
       GST_ERROR_OBJECT (self, "%s", ortex.what ());

subprojects/gst-plugins-bad/gst-libs/gst/analytics/gsttensor.h

@@ -69,12 +69,43 @@ typedef enum _GstTensorDataType
   GST_TENSOR_TYPE_BFLOAT16,
 } GstTensorDataType;
 
+/**
+ * GstTensorDimOrder:
+ * @GST_TENSOR_DIM_ORDER_ROW_MAJOR: elements along a row are consecutive in memory
+ * @GST_TENSOR_DIM_ORDER_COL_MAJOR: elements along a column are consecutive in memory
+ *
+ * Indicate to read tensor from memory in row-major or column-major.
+ *
+ * Since: 1.26
+ */
+typedef enum _GstTensorDimOrder
+{
+  GST_TENSOR_DIM_ORDER_ROW_MAJOR,
+  GST_TENSOR_DIM_ORDER_COL_MAJOR
+} GstTensorDimOrder;
+
+/**
+ * GstTensorLayout:
+ * @GST_TENSOR_LAYOUT_STRIDED: indicate the tensor is stored in a dense format in memory
+ *
+ * Indicate tensor storage in memory.
+ *
+ * Since: 1.26
+ */
+typedef enum _GstTensorLayout
+{
+  GST_TENSOR_LAYOUT_STRIDED
+} GstTensorLayout;
+
 /**
  * GstTensor:
  * @id: semantically identify the contents of the tensor
  * @num_dims: number of tensor dimensions
  * @dims: tensor dimensions
+ * @dims_order: Indicate tensor elements layout in memory.
+ * @layout: Indicate tensor layout
  * @type: #GstTensorDataType of tensor data
+ * @batch_size: Model batch size
  * @data: #GstBuffer holding tensor data
  *
  * Hold tensor data
@@ -84,9 +115,12 @@ typedef enum _GstTensorDataType
 typedef struct _GstTensor
 {
   GQuark id;
-  gint num_dims;
+  gsize num_dims;
-  int64_t *dims;
+  gsize *dims;
+  GstTensorDimOrder dims_order;
+  GstTensorLayout layout;
   GstTensorDataType data_type;
+  gsize batch_size;
   GstBuffer *data;
 } GstTensor;
 

subprojects/gst-plugins-bad/gst-libs/gst/analytics/gsttensormeta.h

@@ -46,7 +46,6 @@ typedef struct _GstTensorMeta
 
   gsize num_tensors;
   GstTensor *tensor;
-  gsize batch_size;
 } GstTensorMeta;
 
 G_BEGIN_DECLS