gsttensor_aggregator.c File Reference

GStreamer plugin to aggregate tensor stream. More...

#include <string.h>
#include "gsttensor_aggregator.h"
#include "tensor_meta.h"
#include <nnstreamer_util.h>

Include dependency graph for gsttensor_aggregator.c:

Go to the source code of this file.

Macros
#define	DBG   (!self->silent)
	Macro for debug mode. More...
#define	silent_debug_config(self, c, msg)
#define	GST_CAT_DEFAULT   gst_tensor_aggregator_debug
#define	DEFAULT_SILENT   TRUE
	Flag to print minimized log. More...
#define	DEFAULT_FRAMES_IN   1
	The number of frames in input buffer. More...
#define	DEFAULT_FRAMES_OUT   1
	The number of frames in output buffer. More...
#define	DEFAULT_FRAMES_FLUSH   0
	The number of frames to flush. More...
#define	DEFAULT_FRAMES_DIMENSION   (NNS_TENSOR_RANK_LIMIT - 1)
	The dimension index of frames in configured tensor. More...
#define	DEFAULT_CONCAT   TRUE
	Flag to concatenate output buffer. More...
#define	CAPS_STRING   GST_TENSOR_CAP_DEFAULT ";" GST_TENSORS_CAP_WITH_NUM ("1")
	Template caps string for pads. More...
#define	gst_tensor_aggregator_parent_class   parent_class

Enumerations
enum	{   PROP_0, PROP_FRAMES_IN, PROP_FRAMES_OUT, PROP_FRAMES_FLUSH,   PROP_FRAMES_DIMENSION, PROP_CONCAT, PROP_SILENT }
	tensor_aggregator properties More...

Functions
	GST_DEBUG_CATEGORY_STATIC (gst_tensor_aggregator_debug)
	G_DEFINE_TYPE (GstTensorAggregator, gst_tensor_aggregator, GST_TYPE_ELEMENT)
static void	gst_tensor_aggregator_finalize (GObject *object)
	Function to finalize instance. More...
static void	gst_tensor_aggregator_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
	Setter for tensor_aggregator properties. More...
static void	gst_tensor_aggregator_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
	Getter for tensor_aggregator properties. More...
static gboolean	gst_tensor_aggregator_sink_event (GstPad *pad, GstObject *parent, GstEvent *event)
	This function handles sink events. More...
static gboolean	gst_tensor_aggregator_sink_query (GstPad *pad, GstObject *parent, GstQuery *query)
	This function handles sink pad query. More...
static gboolean	gst_tensor_aggregator_src_query (GstPad *pad, GstObject *parent, GstQuery *query)
	This function handles src pad query. More...
static GstFlowReturn	gst_tensor_aggregator_chain (GstPad *pad, GstObject *parent, GstBuffer *buf)
	Chain function, this function does the actual processing. More...
static GstStateChangeReturn	gst_tensor_aggregator_change_state (GstElement *element, GstStateChange transition)
	Called to perform state change. More...
static void	gst_tensor_aggregator_reset (GstTensorAggregator *self)
	Clear and reset data. More...
static GstCaps *	gst_tensor_aggregator_query_caps (GstTensorAggregator *self, GstPad *pad, GstCaps *filter)
	Get pad caps for caps negotiation. More...
static gboolean	gst_tensor_aggregator_parse_caps (GstTensorAggregator *self, const GstCaps *caps)
	Parse caps and set tensor info. More...
static void	gst_tensor_aggregator_class_init (GstTensorAggregatorClass *klass)
	Initialize the tensor_aggregator's class. More...
static void	gst_tensor_aggregator_init (GstTensorAggregator *self)
	Initialize tensor_aggregator element. More...
static GstAdapter *	gst_tensor_aggregator_get_adapter (GstTensorAggregator *self, GstBuffer *buf)
	Internal function to get adapter. More...
static gboolean	gst_tensor_aggregator_check_concat_axis (GstTensorAggregator *self, const GstTensorInfo *info)
	Check tensor dimension and axis to concatenate data. More...
static gboolean	gst_tensor_aggregator_concat (GstTensorAggregator *self, GstBuffer *outbuf, const GstTensorInfo *info)
	Change the data in buffer with given axis. More...
static GstFlowReturn	gst_tensor_aggregator_push (GstTensorAggregator *self, GstBuffer *outbuf, gsize frame_size)
	Push the buffer to source pad. (Concatenate the buffer if needed) More...

Variables
static GstStaticPadTemplate	sink_template
	Template for sink pad. More...
static GstStaticPadTemplate	src_template
	Template for src pad. More...

Detailed Description

GStreamer plugin to aggregate tensor stream.

GStreamer Copyright (C) 2005 Thomas Vander Stichele thoma.nosp@m.s@ap.nosp@m.estaa.nosp@m.rt.o.nosp@m.rg Copyright (C) 2005 Ronald S. Bultje rbult.nosp@m.je@r.nosp@m.onald.nosp@m..bit.nosp@m.freak.nosp@m..net Copyright (C) 2018 Samsung Electronics Co., Ltd.

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; version 2.1 of the License.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. SECTION:element-tensor_aggregator

Date

29 August 2018

See also

https://github.com/nnstreamer/nnstreamer

Author

Jaeyun Jung jy121.nosp@m.0.ju.nosp@m.ng@sa.nosp@m.msun.nosp@m.g.com

Bug:

No known bugs except for NYI items

Definition in file gsttensor_aggregator.c.

Macro Definition Documentation

CAPS_STRING

#define CAPS_STRING   GST_TENSOR_CAP_DEFAULT ";" GST_TENSORS_CAP_WITH_NUM ("1")

Template caps string for pads.

Definition at line 106 of file gsttensor_aggregator.c.

DBG

#define DBG   (!self->silent)

Macro for debug mode.

Definition at line 42 of file gsttensor_aggregator.c.

DEFAULT_CONCAT

#define DEFAULT_CONCAT   TRUE

Flag to concatenate output buffer.

Definition at line 101 of file gsttensor_aggregator.c.

DEFAULT_FRAMES_DIMENSION

#define DEFAULT_FRAMES_DIMENSION   (NNS_TENSOR_RANK_LIMIT - 1)

The dimension index of frames in configured tensor.

Definition at line 96 of file gsttensor_aggregator.c.

DEFAULT_FRAMES_FLUSH

#define DEFAULT_FRAMES_FLUSH   0

The number of frames to flush.

Definition at line 91 of file gsttensor_aggregator.c.

DEFAULT_FRAMES_IN

#define DEFAULT_FRAMES_IN   1

The number of frames in input buffer.

Definition at line 81 of file gsttensor_aggregator.c.

DEFAULT_FRAMES_OUT

#define DEFAULT_FRAMES_OUT   1

The number of frames in output buffer.

Definition at line 86 of file gsttensor_aggregator.c.

DEFAULT_SILENT

#define DEFAULT_SILENT   TRUE

Flag to print minimized log.

Definition at line 76 of file gsttensor_aggregator.c.

GST_CAT_DEFAULT

#define GST_CAT_DEFAULT   gst_tensor_aggregator_debug

Definition at line 57 of file gsttensor_aggregator.c.

gst_tensor_aggregator_parent_class

#define gst_tensor_aggregator_parent_class   parent_class

Definition at line 124 of file gsttensor_aggregator.c.

silent_debug_config

#define silent_debug_config	(		self,
			c,
			msg
	)

Value:

  do { \
  if (DBG) { \
    if (c) { \
      gchar *dim_str; \
      dim_str = gst_tensor_get_dimension_string ((c)->info.info[0].dimension); \
      GST_DEBUG_OBJECT (self, msg " type=%d dim=%s rate=%d/%d", (c)->info.info[0].type, dim_str, (c)->rate_n, (c)->rate_d); \
      g_free (dim_str); \
    } \
  } \
} while (0)

Definition at line 45 of file gsttensor_aggregator.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

tensor_aggregator properties

Enumerator
PROP_0
PROP_FRAMES_IN
PROP_FRAMES_OUT
PROP_FRAMES_FLUSH
PROP_FRAMES_DIMENSION
PROP_CONCAT
PROP_SILENT

Definition at line 62 of file gsttensor_aggregator.c.

Function Documentation

G_DEFINE_TYPE()

G_DEFINE_TYPE	(	GstTensorAggregator	,
		gst_tensor_aggregator	,
		GST_TYPE_ELEMENT
	)

GST_DEBUG_CATEGORY_STATIC()

GST_DEBUG_CATEGORY_STATIC

(

gst_tensor_aggregator_debug

)

gst_tensor_aggregator_chain()

static GstFlowReturn gst_tensor_aggregator_chain ( GstPad *  pad, GstObject *  parent, GstBuffer *  buf  )

static

Chain function, this function does the actual processing.

push the incoming buffer (do concat if needed)

supposed same duration for incoming buffer

Update timestamp. If frames-in is larger then frames-out, the same timestamp (pts and dts) would be returned.

set timestamp

flush data

Todo:

flush data Invalid state, tried to flush large size. We have to determine how to handle this case. (flush the out-size or all available bytes) Now all available bytes in adapter will be flushed.

Definition at line 835 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_change_state()

static GstStateChangeReturn gst_tensor_aggregator_change_state ( GstElement *  element, GstStateChange  transition  )

static

Called to perform state change.

Definition at line 947 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_check_concat_axis()

static gboolean gst_tensor_aggregator_check_concat_axis ( GstTensorAggregator *  self, const GstTensorInfo *  info  )

static

Check tensor dimension and axis to concatenate data.

Parameters

self	this pointer to GstTensorAggregator
info	tensor info for one frame

Returns

True if needed to concatenate

Internal error. Caller should've checked it

Check condition to concatenate data.

concatenate data

Definition at line 540 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_class_init()

static void gst_tensor_aggregator_class_init ( GstTensorAggregatorClass *  klass )

static

Initialize the tensor_aggregator's class.

GstTensorAggregator::frames-in:

The number of frames in incoming buffer. GstTensorAggregator itself cannot get the frames in buffer. (buffer is a sinle tensor instance) GstTensorAggregator calculates the size of single frame with this property.

GstTensorAggregator::frames-out:

The number of frames in outgoing buffer. (buffer is a sinle tensor instance) GstTensorAggregator calculates the size of outgoing frames and pushes a buffer to source pad.

GstTensorAggregator::frames-flush:

The number of frames to flush. GstTensorAggregator flushes the bytes (N frames) in GstAdapter after pushing a buffer. If set 0 (default value), all outgoing frames will be flushed.

GstTensorAggregator::frames-dim:

The dimension index of frames in tensor. If frames-in and frames-out are different, GstTensorAggregator has to change the dimension of tensor. With this property, GstTensorAggregator changes the out-caps.

GstTensorAggregator::concat:

The flag to concatenate output buffer. If concat is true and frames-out is larger than 1, GstTensorAggregator will concatenate the output buffer with the axis frames-dim.

GstTensorAggregator::silent:

The flag to enable/disable debugging messages.

Definition at line 155 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_concat()

static gboolean gst_tensor_aggregator_concat ( GstTensorAggregator *  self, GstBuffer *  outbuf, const GstTensorInfo *  info  )

static

Change the data in buffer with given axis.

Parameters

self	this pointer to GstTensorAggregator
outbuf	buffer to be concatenated
info	tensor info for one frame

Internal error

Concatenate output buffer with given axis (frames-dim) If frames-dim is equal to (NNS_TENSOR_RANK_LIMIT - 1), nothing to do. (In this case, this function will not be called. See gst_tensor_aggregator_check_concat_axis ())

Ex1) concatenate 2 frames with dimension 3:4:2:1

frame 1 [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] [ [1113 1114 1115] [1116 1117 1118] [1119 1120 1121] [1122 1123 1124] ] ]

frame 2 [ [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] [ [2113 2114 2115] [2116 2117 2118] [2119 2120 2121] [2122 2123 2124] ] ]

1-1. result with frames-dim 3 (3:4:2:2) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] [ [1113 1114 1115] [1116 1117 1118] [1119 1120 1121] [1122 1123 1124] ] ] [ [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] [ [2113 2114 2115] [2116 2117 2118] [2119 2120 2121] [2122 2123 2124] ] ]

1-2. result with frames-dim 2 (3:4:4:1) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] [ [1113 1114 1115] [1116 1117 1118] [1119 1120 1121] [1122 1123 1124] ] [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] [ [2113 2114 2115] [2116 2117 2118] [2119 2120 2121] [2122 2123 2124] ] ]

1-3. result with frames-dim 1 (3:8:2:1) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] [ [1113 1114 1115] [1116 1117 1118] [1119 1120 1121] [1122 1123 1124] [2113 2114 2115] [2116 2117 2118] [2119 2120 2121] [2122 2123 2124] ] ]

1-4. result with frames-dim 0 (6:4:2:1) [ [ [1101 1102 1103 2101 2102 2103] [1104 1105 1106 2104 2105 2106] [1107 1108 1109 2107 2108 2109] [1110 1111 1112 2110 2111 2112] ] [ [1113 1114 1115 2113 2114 2115] [1116 1117 1118 2116 2117 2118] [1119 1120 1121 2119 2120 2121] [1122 1123 1124 2122 2123 2124] ] ]

Ex2) concatenate 2 frames with dimension 3:4:2:2

frame 1 [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] [ [1113 1114 1115] [1116 1117 1118] [1119 1120 1121] [1122 1123 1124] ] ] [ [ [1201 1202 1203] [1204 1205 1206] [1207 1208 1209] [1210 1211 1212] ] [ [1213 1214 1215] [1216 1217 1218] [1219 1220 1221] [1222 1223 1224] ] ]

frame 2 [ [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] [ [2113 2114 2115] [2116 2117 2118] [2119 2120 2121] [2122 2123 2124] ] ] [ [ [2201 2202 2203] [2204 2205 2206] [2207 2208 2209] [2210 2211 2212] ] [ [2213 2214 2215] [2216 2217 2218] [2219 2220 2221] [2222 2223 2224] ] ]

2-1. result with frames-dim 3 (3:4:2:4) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] [ [1113 1114 1115] [1116 1117 1118] [1119 1120 1121] [1122 1123 1124] ] ] [ [ [1201 1202 1203] [1204 1205 1206] [1207 1208 1209] [1210 1211 1212] ] [ [1213 1214 1215] [1216 1217 1218] [1219 1220 1221] [1222 1223 1224] ] ] [ [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] [ [2113 2114 2115] [2116 2117 2118] [2119 2120 2121] [2122 2123 2124] ] ] [ [ [2201 2202 2203] [2204 2205 2206] [2207 2208 2209] [2210 2211 2212] ] [ [2213 2214 2215] [2216 2217 2218] [2219 2220 2221] [2222 2223 2224] ] ]

2-2. result with frames-dim 2 (3:4:4:2) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] [ [1113 1114 1115] [1116 1117 1118] [1119 1120 1121] [1122 1123 1124] ] [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] [ [2113 2114 2115] [2116 2117 2118] [2119 2120 2121] [2122 2123 2124] ] ] [ [ [1201 1202 1203] [1204 1205 1206] [1207 1208 1209] [1210 1211 1212] ] [ [1213 1214 1215] [1216 1217 1218] [1219 1220 1221] [1222 1223 1224] ] [ [2201 2202 2203] [2204 2205 2206] [2207 2208 2209] [2210 2211 2212] ] [ [2213 2214 2215] [2216 2217 2218] [2219 2220 2221] [2222 2223 2224] ] ]

2-3. result with frames-dim 1 (3:8:2:2) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] [ [1113 1114 1115] [1116 1117 1118] [1119 1120 1121] [1122 1123 1124] [2113 2114 2115] [2116 2117 2118] [2119 2120 2121] [2122 2123 2124] ] ] [ [ [1201 1202 1203] [1204 1205 1206] [1207 1208 1209] [1210 1211 1212] [2201 2202 2203] [2204 2205 2206] [2207 2208 2209] [2210 2211 2212] ] [ [1213 1214 1215] [1216 1217 1218] [1219 1220 1221] [1222 1223 1224] [2213 2214 2215] [2216 2217 2218] [2219 2220 2221] [2222 2223 2224] ] ]

2-4. result with frames-dim 0 (6:4:2:2) [ [ [1101 1102 1103 2101 2102 2103] [1104 1105 1106 2104 2105 2106] [1107 1108 1109 2107 2108 2109] [1110 1111 1112 2110 2111 2112] ] [ [1113 1114 1115 2113 2114 2115] [1116 1117 1118 2116 2117 2118] [1119 1120 1121 2119 2120 2121] [1122 1123 1124 2122 2123 2124] ] ] [ [ [1201 1202 1203 2201 2202 2203] [1204 1205 1206 2204 2205 2206] [1207 1208 1209 2207 2208 2209] [1210 1211 1212 2210 2211 2212] ] [ [1213 1214 1215 2213 2214 2215] [1216 1217 1218 2216 2217 2218] [1219 1220 1221 2219 2220 2221] [1222 1223 1224 2222 2223 2224] ] ]

Ex3) concatenate 2 frames with dimension 3:4:1:1

frame 1 [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] ]

frame 2 [ [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] ]

3-1. result with frames-dim 3 (3:4:1:2) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] ] [ [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] ]

3-2. result with frames-dim 2 (3:4:2:1) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] ] [ [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] ]

3-3. result with frames-dim 1 (3:8:1:1) [ [ [1101 1102 1103] [1104 1105 1106] [1107 1108 1109] [1110 1111 1112] [2101 2102 2103] [2104 2105 2106] [2107 2108 2109] [2110 2111 2112] ] ]

3-4. result with frames-dim 0 (6:4:1:1) [ [ [1101 1102 1103 2101 2102 2103] [1104 1105 1106 2104 2105 2106] [1107 1108 1109 2107 2108 2109] [1110 1111 1112 2110 2111 2112] ] ]

get block size

Definition at line 569 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_finalize()

static void gst_tensor_aggregator_finalize ( GObject *  object )

static

Function to finalize instance.

Definition at line 294 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_get_adapter()

static GstAdapter* gst_tensor_aggregator_get_adapter ( GstTensorAggregator *  self, GstBuffer *  buf  )

static

Internal function to get adapter.

Definition at line 521 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_get_property()

static void gst_tensor_aggregator_get_property ( GObject *  object, guint  prop_id, GValue *  value, GParamSpec *  pspec  )

static

Getter for tensor_aggregator properties.

Definition at line 349 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_init()

static void gst_tensor_aggregator_init ( GstTensorAggregator *  self )

static

Initialize tensor_aggregator element.

setup sink pad

setup src pad

init properties

Definition at line 254 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_parse_caps()

static gboolean gst_tensor_aggregator_parse_caps ( GstTensorAggregator *  self, const GstCaps *  caps  )

static

Parse caps and set tensor info.

Todo:

flush data Check properties to detect invalid case. Assertion when in=5 out=10 flush=20 or in=10 out=5 flush=20

update dimension in output tensor. e.g, in-dimension 2:200:200:1 if frames_out=10 and frames_dim=3, then out-dimension is 2:200:200:10. if frames_out=10 and frames_dim=2, then out-dimension is 2:200:2000:1.

Definition at line 1026 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_push()

static GstFlowReturn gst_tensor_aggregator_push ( GstTensorAggregator *  self, GstBuffer *  outbuf, gsize  frame_size  )

static

Push the buffer to source pad. (Concatenate the buffer if needed)

tensor info for one frame

change data in buffer with given axis

Definition at line 805 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_query_caps()

static GstCaps * gst_tensor_aggregator_query_caps ( GstTensorAggregator *  self, GstPad *  pad, GstCaps *  filter  )

static

Get pad caps for caps negotiation.

Definition at line 990 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_reset()

static void gst_tensor_aggregator_reset ( GstTensorAggregator *  self )

static

Clear and reset data.

Definition at line 980 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_set_property()

static void gst_tensor_aggregator_set_property ( GObject *  object, guint  prop_id, const GValue *  value, GParamSpec *  pspec  )

static

Setter for tensor_aggregator properties.

Definition at line 313 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_sink_event()

static gboolean gst_tensor_aggregator_sink_event ( GstPad *  pad, GstObject *  parent, GstEvent *  event  )

static

This function handles sink events.

Definition at line 385 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_sink_query()

static gboolean gst_tensor_aggregator_sink_query ( GstPad *  pad, GstObject *  parent, GstQuery *  query  )

static

This function handles sink pad query.

Definition at line 434 of file gsttensor_aggregator.c.

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gst_tensor_aggregator_src_query()

static gboolean gst_tensor_aggregator_src_query ( GstPad *  pad, GstObject *  parent, GstQuery *  query  )

static

This function handles src pad query.

Definition at line 487 of file gsttensor_aggregator.c.

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Variable Documentation

sink_template

GstStaticPadTemplate sink_template

static

Initial value:

= GST_STATIC_PAD_TEMPLATE ("sink",
    GST_PAD_SINK,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS (CAPS_STRING))

Template for sink pad.

Definition at line 111 of file gsttensor_aggregator.c.

src_template

GstStaticPadTemplate src_template

static

Initial value:

= GST_STATIC_PAD_TEMPLATE ("src",
    GST_PAD_SRC,
    GST_PAD_ALWAYS,
    GST_STATIC_CAPS (CAPS_STRING))

Template for src pad.

Definition at line 119 of file gsttensor_aggregator.c.