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gstreamer/subprojects/gst-plugins-base/gst/rawparse/gstrawvideoparse.c
Nicolas Dufresne 5980fb76e7 video: Add arbitrary tile dimensions support 
In current tile representation, only tiles with power of two
width and height in bytes are supported. This limitation
prevents adding more complex tiles formats.

In this patch, we deprecate tile_ws and tile_hs from GstVideoFormatInfo and
replace if with an array of GstVideoTileInfo. Each plane tiles are then
described with their pixels width/height, line stride and total size.
The helper gst_video_format_info_get_tile_sizes() that depends on the
deprecated API is also being removed. This can simply be removed as it wasn't
in any stable release yet.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3424>
2022-11-18 22:59:29 +00:00

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/* GStreamer
* Copyright (C) <2016> Carlos Rafael Giani <dv at pseudoterminal dot org>
*
* 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; either
* version 2 of the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-rawvideoparse
* @title: rawvideoparse
*
* This element parses incoming data as raw video frames and timestamps these.
* It also handles seek queries in said raw video data, and ensures that output
* buffers contain exactly one frame, even if the input buffers contain only
* partial frames or multiple frames. In the former case, it will continue to
* receive buffers until there is enough input data to output one frame. In the
* latter case, it will extract the first frame in the buffer and output it, then
* the second one etc. until the remaining unparsed bytes aren't enough to form
* a complete frame, and it will then continue as described in the earlier case.
*
* If the properties configuration is used, plane strides and offsets will be
* computed by using gst_video_info_set_format(). This can be overridden by passing
* GstValueArrays to the plane-offsets and plane-strides properties. When this is
* done, these custom offsets and strides are used later even if new width,
* height, format etc. property values might be set. To switch back to computed
* plane strides & offsets, pass NULL to one or both of the plane-offset and
* plane-array properties.
*
* The frame size property is useful in cases where there is extra data between
* the frames (for example, trailing metadata, or headers). The parser calculates
* the actual frame size out of the other properties and compares it with this
* frame-size value. If the frame size is larger than the calculated size,
* then the extra bytes after the end of the frame are skipped. For example, with
* 8-bit grayscale frames and a actual frame size of 100x10 pixels and a frame-size of
* 1500 bytes, there are 500 excess bytes at the end of the actual frame which
* are then skipped. It is safe to set the frame size to a value that is smaller
* than the actual frame size (in fact, its default value is 0); if it is smaller,
* then no trailing data will be skipped.
*
* If a framerate of 0 Hz is set (for example, 0/1), then output buffers will have
* no duration set. The first output buffer will have a PTS 0, all subsequent ones
* an unset PTS.
*
* ## Example pipelines
* |[
* gst-launch-1.0 filesrc location=video.raw ! rawvideoparse use-sink-caps=false \
* width=500 height=400 format=y444 ! autovideosink
* ]|
* Read raw data from a local file and parse it as video data with 500x400 pixels
* and Y444 video format.
* |[
* gst-launch-1.0 filesrc location=video.raw ! queue ! "video/x-raw, width=320, \
* height=240, format=I420, framerate=1/1" ! rawvideoparse \
* use-sink-caps=true ! autovideosink
* ]|
* Read raw data from a local file and parse it as video data with 320x240 pixels
* and I420 video format. The queue element here is to force push based scheduling.
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include "gstrawparseelements.h"
#include "gstrawvideoparse.h"
#include "unalignedvideo.h"
GST_DEBUG_CATEGORY_STATIC (raw_video_parse_debug);
#define GST_CAT_DEFAULT raw_video_parse_debug
enum
{
PROP_0,
PROP_WIDTH,
PROP_HEIGHT,
PROP_FORMAT,
PROP_PIXEL_ASPECT_RATIO,
PROP_FRAMERATE,
PROP_INTERLACED,
PROP_TOP_FIELD_FIRST,
PROP_PLANE_STRIDES,
PROP_PLANE_OFFSETS,
PROP_FRAME_SIZE,
PROP_COLORIMETRY,
};
#define DEFAULT_WIDTH 320
#define DEFAULT_HEIGHT 240
#define DEFAULT_FORMAT GST_VIDEO_FORMAT_I420
#define DEFAULT_PIXEL_ASPECT_RATIO_N 1
#define DEFAULT_PIXEL_ASPECT_RATIO_D 1
#define DEFAULT_FRAMERATE_N 25
#define DEFAULT_FRAMERATE_D 1
#define DEFAULT_INTERLACED FALSE
#define DEFAULT_TOP_FIELD_FIRST FALSE
#define DEFAULT_FRAME_STRIDE 0
#define GST_RAW_VIDEO_PARSE_CAPS \
GST_VIDEO_CAPS_MAKE(GST_VIDEO_FORMATS_ALL) "; "
static GstStaticPadTemplate static_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_UNALIGNED_RAW_VIDEO_CAPS "; " GST_RAW_VIDEO_PARSE_CAPS)
);
static GstStaticPadTemplate static_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_RAW_VIDEO_PARSE_CAPS)
);
#define gst_raw_video_parse_parent_class parent_class
G_DEFINE_TYPE (GstRawVideoParse, gst_raw_video_parse, GST_TYPE_RAW_BASE_PARSE);
GST_ELEMENT_REGISTER_DEFINE (rawvideoparse, "rawvideoparse",
GST_RANK_NONE, GST_TYPE_RAW_VIDEO_PARSE);
static void gst_raw_video_parse_set_property (GObject * object, guint prop_id,
GValue const *value, GParamSpec * pspec);
static void gst_raw_video_parse_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_raw_video_parse_stop (GstBaseParse * parse);
static gboolean gst_raw_video_parse_set_current_config (GstRawBaseParse *
raw_base_parse, GstRawBaseParseConfig config);
static GstRawBaseParseConfig
gst_raw_video_parse_get_current_config (GstRawBaseParse * raw_base_parse);
static gboolean gst_raw_video_parse_set_config_from_caps (GstRawBaseParse *
raw_base_parse, GstRawBaseParseConfig config, GstCaps * caps);
static gboolean gst_raw_video_parse_get_caps_from_config (GstRawBaseParse *
raw_base_parse, GstRawBaseParseConfig config, GstCaps ** caps);
static gsize gst_raw_video_parse_get_config_frame_size (GstRawBaseParse *
raw_base_parse, GstRawBaseParseConfig config);
static guint gst_raw_video_parse_get_max_frames_per_buffer (GstRawBaseParse *
raw_base_parse, GstRawBaseParseConfig config);
static gboolean gst_raw_video_parse_is_config_ready (GstRawBaseParse *
raw_base_parse, GstRawBaseParseConfig config);
static gboolean gst_raw_video_parse_process (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config, GstBuffer * in_data, gsize total_num_in_bytes,
gsize num_valid_in_bytes, GstBuffer ** processed_data);
static gboolean gst_raw_video_parse_is_unit_format_supported (GstRawBaseParse *
raw_base_parse, GstFormat format);
static void gst_raw_video_parse_get_units_per_second (GstRawBaseParse *
raw_base_parse, GstFormat format, GstRawBaseParseConfig config,
gsize * units_per_sec_n, gsize * units_per_sec_d);
static gint gst_raw_video_parse_get_overhead_size (GstRawBaseParse *
raw_base_parse, GstRawBaseParseConfig config);
static gboolean gst_raw_video_parse_is_using_sink_caps (GstRawVideoParse *
raw_video_parse);
static GstRawVideoParseConfig
* gst_raw_video_parse_get_config_ptr (GstRawVideoParse * raw_video_parse,
GstRawBaseParseConfig config);
static void gst_raw_video_parse_init_config (GstRawVideoParseConfig * config);
static void gst_raw_video_parse_update_info (GstRawVideoParseConfig * config);
static void
gst_raw_video_parse_class_init (GstRawVideoParseClass * klass)
{
GObjectClass *object_class;
GstElementClass *element_class;
GstBaseParseClass *baseparse_class;
GstRawBaseParseClass *rawbaseparse_class;
GST_DEBUG_CATEGORY_INIT (raw_video_parse_debug, "rawvideoparse", 0,
"rawvideoparse element");
object_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
baseparse_class = GST_BASE_PARSE_CLASS (klass);
rawbaseparse_class = GST_RAW_BASE_PARSE_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&static_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&static_src_template));
object_class->set_property =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_set_property);
object_class->get_property =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_get_property);
baseparse_class->stop = GST_DEBUG_FUNCPTR (gst_raw_video_parse_stop);
rawbaseparse_class->set_current_config =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_set_current_config);
rawbaseparse_class->get_current_config =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_get_current_config);
rawbaseparse_class->set_config_from_caps =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_set_config_from_caps);
rawbaseparse_class->get_caps_from_config =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_get_caps_from_config);
rawbaseparse_class->get_config_frame_size =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_get_config_frame_size);
rawbaseparse_class->get_max_frames_per_buffer =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_get_max_frames_per_buffer);
rawbaseparse_class->is_config_ready =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_is_config_ready);
rawbaseparse_class->process = GST_DEBUG_FUNCPTR (gst_raw_video_parse_process);
rawbaseparse_class->is_unit_format_supported =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_is_unit_format_supported);
rawbaseparse_class->get_units_per_second =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_get_units_per_second);
rawbaseparse_class->get_overhead_size =
GST_DEBUG_FUNCPTR (gst_raw_video_parse_get_overhead_size);
g_object_class_install_property (object_class,
PROP_WIDTH,
g_param_spec_int ("width",
"Width",
"Width of frames in raw stream",
0, G_MAXINT, DEFAULT_WIDTH,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_HEIGHT,
g_param_spec_int ("height",
"Height",
"Height of frames in raw stream",
0, G_MAXINT,
DEFAULT_HEIGHT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_FORMAT,
g_param_spec_enum ("format",
"Format",
"Format of frames in raw stream",
GST_TYPE_VIDEO_FORMAT,
DEFAULT_FORMAT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_FRAMERATE,
gst_param_spec_fraction ("framerate",
"Frame rate",
"Rate of frames in raw stream",
0, 1, G_MAXINT, 1,
DEFAULT_FRAMERATE_N, DEFAULT_FRAMERATE_D,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_PIXEL_ASPECT_RATIO,
gst_param_spec_fraction ("pixel-aspect-ratio",
"Pixel aspect ratio",
"Pixel aspect ratio of frames in raw stream",
1, 100, 100, 1,
DEFAULT_PIXEL_ASPECT_RATIO_N, DEFAULT_PIXEL_ASPECT_RATIO_D,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_INTERLACED,
g_param_spec_boolean ("interlaced",
"Interlaced flag",
"True if frames in raw stream are interlaced",
DEFAULT_INTERLACED, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_TOP_FIELD_FIRST,
g_param_spec_boolean ("top-field-first",
"Top field first",
"True if top field in frames in raw stream come first (not used if frames aren't interlaced)",
DEFAULT_INTERLACED, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_PLANE_STRIDES,
gst_param_spec_array ("plane-strides",
"Plane strides",
"Strides of the planes in bytes (e.g. plane-strides=\"<320,320>\")",
g_param_spec_int ("plane-stride",
"Plane stride",
"Stride of the n-th plane in bytes (0 = stride equals width*bytes-per-pixel)",
0, G_MAXINT,
0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_PLANE_OFFSETS,
gst_param_spec_array ("plane-offsets",
"Plane offsets",
"Offsets of the planes in bytes (e.g. plane-offsets=\"<0,76800>\")",
g_param_spec_int ("plane-offset",
"Plane offset",
"Offset of the n-th plane in bytes",
0, G_MAXINT,
0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_FRAME_SIZE,
g_param_spec_uint ("frame-size",
"Frame size",
"Size of a frame (0 = frames are tightly packed together)",
0, G_MAXUINT,
DEFAULT_FRAME_STRIDE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
g_object_class_install_property (object_class,
PROP_COLORIMETRY,
g_param_spec_string ("colorimetry",
"Colorimetry",
"The video source colorimetry",
NULL, G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS)
);
gst_element_class_set_static_metadata (element_class,
"rawvideoparse",
"Codec/Parser/Video",
"Converts unformatted data streams into timestamped raw video frames",
"Carlos Rafael Giani <dv@pseudoterminal.org>");
}
static void
gst_raw_video_parse_init (GstRawVideoParse * raw_video_parse)
{
gst_raw_video_parse_init_config (&(raw_video_parse->properties_config));
gst_raw_video_parse_init_config (&(raw_video_parse->sink_caps_config));
/* As required by GstRawBaseParse, ensure that the current configuration
* is initially set to be the properties config */
raw_video_parse->current_config = &(raw_video_parse->properties_config);
/* Properties config must be valid from the start, so set its ready value
* to TRUE, and make sure its bpf value is valid. */
raw_video_parse->properties_config.ready = TRUE;
raw_video_parse->properties_config.top_field_first = DEFAULT_TOP_FIELD_FIRST;
raw_video_parse->properties_config.frame_size = DEFAULT_FRAME_STRIDE;
}
static void
gst_raw_video_parse_set_property (GObject * object, guint prop_id,
GValue const *value, GParamSpec * pspec)
{
GstBaseParse *base_parse = GST_BASE_PARSE (object);
GstRawBaseParse *raw_base_parse = GST_RAW_BASE_PARSE (object);
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (object);
GstRawVideoParseConfig *props_cfg = &(raw_video_parse->properties_config);
/* All properties are handled similarly:
* - if the new value is the same as the current value, nothing is done
* - the parser lock is held while the new value is set
* - if the properties config is the current config, the source caps are
* invalidated to ensure that the code in handle_frame pushes a new CAPS
* event out
* - properties that affect the video frame size call the function to update
* the info and also call gst_base_parse_set_min_frame_size() to ensure
* that the minimum frame size can hold 1 frame (= one sample for each
* channel); to ensure that the min frame size includes any extra padding,
* it is set to the result of gst_raw_video_parse_get_config_frame_size()
* - property configuration values that require video info updates aren't
* written directory into the video info structure, but in the extra
* fields instead (gst_raw_video_parse_update_info() then copies the values
* from these fields into the video info); see the documentation inside
* gst_raw_video_parse_update_info() for the reason why
*/
switch (prop_id) {
case PROP_WIDTH:
{
gint new_width = g_value_get_int (value);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
if (new_width != props_cfg->width) {
props_cfg->width = new_width;
gst_raw_video_parse_update_info (props_cfg);
if (!gst_raw_video_parse_is_using_sink_caps (raw_video_parse)) {
gst_raw_base_parse_invalidate_src_caps (raw_base_parse);
gst_base_parse_set_min_frame_size (base_parse,
gst_raw_video_parse_get_config_frame_size (raw_base_parse,
GST_RAW_BASE_PARSE_CONFIG_PROPERTIES));
}
}
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_HEIGHT:
{
gint new_height = g_value_get_int (value);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
if (new_height != props_cfg->height) {
props_cfg->height = new_height;
gst_raw_video_parse_update_info (props_cfg);
if (!gst_raw_video_parse_is_using_sink_caps (raw_video_parse)) {
gst_raw_base_parse_invalidate_src_caps (raw_base_parse);
gst_base_parse_set_min_frame_size (base_parse,
gst_raw_video_parse_get_config_frame_size (raw_base_parse,
GST_RAW_BASE_PARSE_CONFIG_PROPERTIES));
}
}
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_FORMAT:
{
GstVideoFormat new_format = g_value_get_enum (value);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
if (new_format != props_cfg->format) {
props_cfg->format = new_format;
gst_raw_video_parse_update_info (props_cfg);
if (!gst_raw_video_parse_is_using_sink_caps (raw_video_parse)) {
gst_raw_base_parse_invalidate_src_caps (raw_base_parse);
gst_base_parse_set_min_frame_size (base_parse,
gst_raw_video_parse_get_config_frame_size (raw_base_parse,
GST_RAW_BASE_PARSE_CONFIG_PROPERTIES));
}
}
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_PIXEL_ASPECT_RATIO:
{
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
/* The pixel aspect ratio does not affect the video frame size,
* so it is just set directly without any updates */
props_cfg->pixel_aspect_ratio_n =
GST_VIDEO_INFO_PAR_N (&(props_cfg->info)) =
gst_value_get_fraction_numerator (value);
props_cfg->pixel_aspect_ratio_d =
GST_VIDEO_INFO_PAR_D (&(props_cfg->info)) =
gst_value_get_fraction_denominator (value);
GST_DEBUG_OBJECT (raw_video_parse, "setting pixel aspect ratio to %u/%u",
props_cfg->pixel_aspect_ratio_n, props_cfg->pixel_aspect_ratio_d);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_FRAMERATE:
{
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
/* The framerate does not affect the video frame size,
* so it is just set directly without any updates */
props_cfg->framerate_n = GST_VIDEO_INFO_FPS_N (&(props_cfg->info)) =
gst_value_get_fraction_numerator (value);
props_cfg->framerate_d = GST_VIDEO_INFO_FPS_D (&(props_cfg->info)) =
gst_value_get_fraction_denominator (value);
GST_DEBUG_OBJECT (raw_video_parse, "setting framerate to %u/%u",
props_cfg->framerate_n, props_cfg->framerate_d);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_INTERLACED:
{
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
/* Interlacing does not affect the video frame size,
* so it is just set directly without any updates */
props_cfg->interlaced = g_value_get_boolean (value);
GST_VIDEO_INFO_INTERLACE_MODE (&(props_cfg->info)) =
props_cfg->interlaced ? GST_VIDEO_INTERLACE_MODE_INTERLEAVED :
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_TOP_FIELD_FIRST:
{
/* The top-field-first flag is a detail related to
* interlacing, so no video info update is needed */
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
props_cfg->top_field_first = g_value_get_boolean (value);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_PLANE_STRIDES:
{
guint n_planes;
guint i;
/* If no array is given, then disable custom
* plane strides & offsets and stick to the
* standard computed ones */
if (gst_value_array_get_size (value) == 0) {
GST_DEBUG_OBJECT (raw_video_parse,
"custom plane strides & offsets disabled");
props_cfg->custom_plane_strides = FALSE;
gst_raw_video_parse_update_info (props_cfg);
break;
}
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
n_planes = GST_VIDEO_INFO_N_PLANES (&(props_cfg->info));
/* Check that the array holds the right number of values */
if (gst_value_array_get_size (value) < n_planes) {
GST_ELEMENT_ERROR (raw_video_parse, LIBRARY, SETTINGS,
("incorrect number of elements in plane strides property"),
("expected: %u, got: %u", n_planes,
gst_value_array_get_size (value)));
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
/* Copy the values to the stride array */
for (i = 0; i < n_planes; ++i) {
const GValue *val = gst_value_array_get_value (value, i);
props_cfg->plane_strides[i] = g_value_get_int (val);
GST_DEBUG_OBJECT (raw_video_parse, "plane #%u stride: %d", i,
props_cfg->plane_strides[i]);
}
props_cfg->custom_plane_strides = TRUE;
gst_raw_video_parse_update_info (props_cfg);
if (!gst_raw_video_parse_is_using_sink_caps (raw_video_parse))
gst_base_parse_set_min_frame_size (base_parse,
gst_raw_video_parse_get_config_frame_size (raw_base_parse,
GST_RAW_BASE_PARSE_CONFIG_PROPERTIES));
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_PLANE_OFFSETS:
{
guint n_planes;
guint i;
/* If no array is given, then disable custom
* plane strides & offsets and stick to the
* standard computed ones */
if (gst_value_array_get_size (value) == 0) {
GST_DEBUG_OBJECT (raw_video_parse,
"custom plane strides & offsets disabled");
props_cfg->custom_plane_strides = FALSE;
gst_raw_video_parse_update_info (props_cfg);
break;
}
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
n_planes = GST_VIDEO_INFO_N_PLANES (&(props_cfg->info));
/* Check that the alarray holds the right number of values */
if (gst_value_array_get_size (value) < n_planes) {
GST_ELEMENT_ERROR (raw_video_parse, LIBRARY, SETTINGS,
("incorrect number of elements in plane offsets property"),
("expected: %u, got: %u", n_planes,
gst_value_array_get_size (value)));
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
/* Copy the values to the offset array */
for (i = 0; i < n_planes; ++i) {
const GValue *val = gst_value_array_get_value (value, i);
props_cfg->plane_offsets[i] = g_value_get_int (val);
GST_DEBUG_OBJECT (raw_video_parse, "plane #%u offset: %" G_GSIZE_FORMAT,
i, props_cfg->plane_offsets[i]);
}
props_cfg->custom_plane_strides = TRUE;
gst_raw_video_parse_update_info (props_cfg);
if (!gst_raw_video_parse_is_using_sink_caps (raw_video_parse))
gst_base_parse_set_min_frame_size (base_parse,
gst_raw_video_parse_get_config_frame_size (raw_base_parse,
GST_RAW_BASE_PARSE_CONFIG_PROPERTIES));
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_FRAME_SIZE:
{
/* The frame size is used to accumulate extra padding that may exist at
* the end of a frame. It does not affect GstVideoInfo::size, hence
* it is just set directly without any updates */
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
props_cfg->frame_size = g_value_get_uint (value);
gst_raw_video_parse_update_info (props_cfg);
if (!gst_raw_video_parse_is_using_sink_caps (raw_video_parse))
gst_base_parse_set_min_frame_size (base_parse,
gst_raw_video_parse_get_config_frame_size (raw_base_parse,
GST_RAW_BASE_PARSE_CONFIG_PROPERTIES));
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_COLORIMETRY:
{
GstVideoColorimetry new_cinfo;
if (!gst_video_colorimetry_from_string (&new_cinfo,
g_value_get_string (value)))
break;
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
if (!gst_video_colorimetry_is_equal (&new_cinfo,
&(props_cfg->info.colorimetry))) {
props_cfg->colorimetry = new_cinfo;
gst_raw_video_parse_update_info (props_cfg);
if (!gst_raw_video_parse_is_using_sink_caps (raw_video_parse))
gst_raw_base_parse_invalidate_src_caps (raw_base_parse);
}
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_raw_video_parse_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (object);
GstRawVideoParseConfig *props_cfg = &(raw_video_parse->properties_config);
switch (prop_id) {
case PROP_WIDTH:
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
g_value_set_int (value, props_cfg->width);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
case PROP_HEIGHT:
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
g_value_set_int (value, props_cfg->height);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
case PROP_FORMAT:
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
g_value_set_enum (value, props_cfg->format);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
case PROP_PIXEL_ASPECT_RATIO:
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
gst_value_set_fraction (value, props_cfg->pixel_aspect_ratio_n,
props_cfg->pixel_aspect_ratio_d);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
case PROP_FRAMERATE:
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
gst_value_set_fraction (value, props_cfg->framerate_n,
props_cfg->framerate_d);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
case PROP_INTERLACED:
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
g_value_set_boolean (value, props_cfg->interlaced);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
case PROP_TOP_FIELD_FIRST:
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
g_value_set_boolean (value, props_cfg->top_field_first);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
case PROP_PLANE_STRIDES:
{
guint i, n_planes;
GValue val = G_VALUE_INIT;
g_value_reset (value);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
n_planes = GST_VIDEO_INFO_N_PLANES (&(props_cfg->info));
g_value_init (&val, G_TYPE_INT);
for (i = 0; i < n_planes; ++i) {
g_value_set_int (&val, props_cfg->plane_strides[i]);
gst_value_array_append_value (value, &val);
}
g_value_unset (&val);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_PLANE_OFFSETS:
{
guint i, n_planes;
GValue val = G_VALUE_INIT;
g_value_reset (value);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
n_planes = GST_VIDEO_INFO_N_PLANES (&(props_cfg->info));
g_value_init (&val, G_TYPE_INT);
for (i = 0; i < n_planes; ++i) {
g_value_set_int (&val, props_cfg->plane_offsets[i]);
gst_value_array_append_value (value, &val);
}
g_value_unset (&val);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
}
case PROP_FRAME_SIZE:
GST_RAW_BASE_PARSE_CONFIG_MUTEX_LOCK (object);
g_value_set_uint (value, raw_video_parse->properties_config.frame_size);
GST_RAW_BASE_PARSE_CONFIG_MUTEX_UNLOCK (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_raw_video_parse_stop (GstBaseParse * parse)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (parse);
/* Sink caps config is not ready until caps come in.
* We are stopping processing, the element is being reset,
* so the config has to be un-readied.
* (Since the properties config is not depending on caps,
* its ready status is always TRUE.) */
raw_video_parse->sink_caps_config.ready = FALSE;
return GST_BASE_PARSE_CLASS (parent_class)->stop (parse);
}
static gboolean
gst_raw_video_parse_set_current_config (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
switch (config) {
case GST_RAW_BASE_PARSE_CONFIG_PROPERTIES:
raw_video_parse->current_config = &(raw_video_parse->properties_config);
break;
case GST_RAW_BASE_PARSE_CONFIG_SINKCAPS:
raw_video_parse->current_config = &(raw_video_parse->sink_caps_config);
break;
default:
g_assert_not_reached ();
}
return TRUE;
}
static GstRawBaseParseConfig
gst_raw_video_parse_get_current_config (GstRawBaseParse * raw_base_parse)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
return gst_raw_video_parse_is_using_sink_caps (raw_video_parse) ?
GST_RAW_BASE_PARSE_CONFIG_SINKCAPS : GST_RAW_BASE_PARSE_CONFIG_PROPERTIES;
}
static gboolean
gst_raw_video_parse_set_config_from_caps (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config, GstCaps * caps)
{
int i;
GstStructure *structure;
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
GstRawVideoParseConfig *config_ptr =
gst_raw_video_parse_get_config_ptr (raw_video_parse, config);
g_assert (caps != NULL);
/* Caps might get copied, and the copy needs to be unref'd.
* Also, the caller retains ownership over the original caps.
* So, to make this mechanism also work with cases where the
* caps are *not* copied, ref the original caps here first. */
gst_caps_ref (caps);
structure = gst_caps_get_structure (caps, 0);
/* For unaligned raw data, the output caps stay the same,
* except that video/x-unaligned-raw becomes video/x-raw,
* since the parser aligns the frame data */
if (gst_structure_has_name (structure, "video/x-unaligned-raw")) {
/* Copy the caps to be able to modify them */
GstCaps *new_caps = gst_caps_copy (caps);
gst_caps_unref (caps);
caps = new_caps;
/* Change the media type to video/x-raw , otherwise
* gst_video_info_from_caps() won't work */
structure = gst_caps_get_structure (caps, 0);
gst_structure_set_name (structure, "video/x-raw");
}
config_ptr->ready = gst_video_info_from_caps (&(config_ptr->info), caps);
if (config_ptr->ready) {
config_ptr->width = GST_VIDEO_INFO_WIDTH (&(config_ptr->info));
config_ptr->height = GST_VIDEO_INFO_HEIGHT (&(config_ptr->info));
config_ptr->format = GST_VIDEO_INFO_FORMAT (&(config_ptr->info));
config_ptr->pixel_aspect_ratio_n =
GST_VIDEO_INFO_PAR_N (&(config_ptr->info));
config_ptr->pixel_aspect_ratio_d =
GST_VIDEO_INFO_PAR_D (&(config_ptr->info));
config_ptr->framerate_n = GST_VIDEO_INFO_FPS_N (&(config_ptr->info));
config_ptr->framerate_d = GST_VIDEO_INFO_FPS_D (&(config_ptr->info));
config_ptr->interlaced = GST_VIDEO_INFO_IS_INTERLACED (&(config_ptr->info));
config_ptr->top_field_first = 0;
config_ptr->frame_size = 0;
for (i = 0; i < GST_VIDEO_MAX_PLANES; ++i) {
config_ptr->plane_offsets[i] =
GST_VIDEO_INFO_PLANE_OFFSET (&(config_ptr->info), i);
config_ptr->plane_strides[i] =
GST_VIDEO_INFO_PLANE_STRIDE (&(config_ptr->info), i);
}
}
gst_caps_unref (caps);
return config_ptr->ready;
}
static gboolean
gst_raw_video_parse_get_caps_from_config (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config, GstCaps ** caps)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
GstRawVideoParseConfig *config_ptr =
gst_raw_video_parse_get_config_ptr (raw_video_parse, config);
g_assert (caps != NULL);
*caps = gst_video_info_to_caps (&(config_ptr->info));
return *caps != NULL;
}
static gsize
gst_raw_video_parse_get_config_frame_size (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
GstRawVideoParseConfig *config_ptr =
gst_raw_video_parse_get_config_ptr (raw_video_parse, config);
return MAX (GST_VIDEO_INFO_SIZE (&(config_ptr->info)),
(gsize) (config_ptr->frame_size));
}
static guint
gst_raw_video_parse_get_max_frames_per_buffer (G_GNUC_UNUSED GstRawBaseParse *
raw_base_parse, G_GNUC_UNUSED GstRawBaseParseConfig config)
{
/* We want exactly one frame per buffer */
return 1;
}
static gboolean
gst_raw_video_parse_is_config_ready (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
return gst_raw_video_parse_get_config_ptr (raw_video_parse, config)->ready;
}
static gboolean
gst_raw_video_parse_process (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config, GstBuffer * in_data,
G_GNUC_UNUSED gsize total_num_in_bytes,
G_GNUC_UNUSED gsize num_valid_in_bytes, GstBuffer ** processed_data)
{
GstAllocationParams alloc_params = { 0, 31, 0, 0 };
GstMapInfo map_info;
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
GstRawVideoParseConfig *config_ptr =
gst_raw_video_parse_get_config_ptr (raw_video_parse, config);
guint frame_flags = 0;
GstVideoInfo *video_info = &(config_ptr->info);
GstBuffer *out_data;
if (!gst_buffer_map (in_data, &map_info, GST_MAP_READ)) {
GST_WARNING_OBJECT (raw_video_parse, "Failed to map input data");
return FALSE;
}
/* Allocate the output memory our required alignment */
*processed_data = out_data = gst_buffer_new_allocate (NULL,
GST_VIDEO_INFO_SIZE (video_info), &alloc_params);
gst_buffer_fill (*processed_data, 0, map_info.data,
GST_VIDEO_INFO_SIZE (video_info));
gst_buffer_unmap (in_data, &map_info);
/* And copy the metadata */
gst_buffer_copy_into (*processed_data, in_data,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS, 0,
GST_VIDEO_INFO_SIZE (video_info));
if (config_ptr->interlaced) {
GST_BUFFER_FLAG_SET (out_data, GST_VIDEO_BUFFER_FLAG_INTERLACED);
frame_flags |= GST_VIDEO_FRAME_FLAG_INTERLACED;
if (config_ptr->top_field_first) {
GST_BUFFER_FLAG_SET (out_data, GST_VIDEO_BUFFER_FLAG_TFF);
frame_flags |= GST_VIDEO_FRAME_FLAG_TFF;
} else
GST_BUFFER_FLAG_UNSET (out_data, GST_VIDEO_BUFFER_FLAG_TFF);
}
gst_buffer_add_video_meta_full (out_data,
frame_flags,
config_ptr->format,
config_ptr->width,
config_ptr->height,
GST_VIDEO_INFO_N_PLANES (video_info),
config_ptr->plane_offsets, config_ptr->plane_strides);
return TRUE;
}
static gboolean
gst_raw_video_parse_is_unit_format_supported (G_GNUC_UNUSED GstRawBaseParse *
raw_base_parse, GstFormat format)
{
switch (format) {
case GST_FORMAT_BYTES:
case GST_FORMAT_DEFAULT:
return TRUE;
default:
return FALSE;
}
}
static void
gst_raw_video_parse_get_units_per_second (GstRawBaseParse * raw_base_parse,
GstFormat format, GstRawBaseParseConfig config, gsize * units_per_sec_n,
gsize * units_per_sec_d)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
GstRawVideoParseConfig *config_ptr =
gst_raw_video_parse_get_config_ptr (raw_video_parse, config);
switch (format) {
case GST_FORMAT_BYTES:
{
gsize framesize = GST_VIDEO_INFO_SIZE (&(config_ptr->info));
gint64 n = framesize * config_ptr->framerate_n;
gint64 d = config_ptr->framerate_d;
gint64 common_div = gst_util_greatest_common_divisor_int64 (n, d);
GST_DEBUG_OBJECT (raw_video_parse,
"n: %" G_GINT64_FORMAT " d: %" G_GINT64_FORMAT " common divisor: %"
G_GINT64_FORMAT, n, d, common_div);
/* Divide numerator and denominator by greatest common divisor.
* This minimizes the risk of integer overflows in the baseparse class. */
*units_per_sec_n = n / common_div;
*units_per_sec_d = d / common_div;
break;
}
case GST_FORMAT_DEFAULT:
{
*units_per_sec_n = config_ptr->framerate_n;
*units_per_sec_d = config_ptr->framerate_d;
break;
}
default:
g_assert_not_reached ();
}
}
static gint
gst_raw_video_parse_get_overhead_size (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config)
{
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
GstRawVideoParseConfig *config_ptr =
gst_raw_video_parse_get_config_ptr (raw_video_parse, config);
gint64 info_size = GST_VIDEO_INFO_SIZE (&(config_ptr->info));
gint64 frame_size = config_ptr->frame_size;
/* In the video parser, the overhead is defined by the difference between
* the configured frame size and the GstVideoInfo size. If the former is
* larger, then the additional bytes are considered padding bytes and get
* ignored by the base class. */
GST_LOG_OBJECT (raw_video_parse,
"info size: %" G_GINT64_FORMAT " frame size: %" G_GINT64_FORMAT,
info_size, frame_size);
return (info_size < frame_size) ? (gint) (frame_size - info_size) : 0;
}
static gboolean
gst_raw_video_parse_is_using_sink_caps (GstRawVideoParse * raw_video_parse)
{
return raw_video_parse->current_config ==
&(raw_video_parse->sink_caps_config);
}
static GstRawVideoParseConfig *
gst_raw_video_parse_get_config_ptr (GstRawVideoParse * raw_video_parse,
GstRawBaseParseConfig config)
{
g_assert (raw_video_parse->current_config != NULL);
switch (config) {
case GST_RAW_BASE_PARSE_CONFIG_PROPERTIES:
return &(raw_video_parse->properties_config);
case GST_RAW_BASE_PARSE_CONFIG_SINKCAPS:
return &(raw_video_parse->sink_caps_config);
default:
g_assert (raw_video_parse->current_config != NULL);
return raw_video_parse->current_config;
}
}
static void
gst_raw_video_parse_init_config (GstRawVideoParseConfig * config)
{
int i;
config->ready = FALSE;
config->width = DEFAULT_WIDTH;
config->height = DEFAULT_HEIGHT;
config->format = DEFAULT_FORMAT;
config->pixel_aspect_ratio_n = DEFAULT_PIXEL_ASPECT_RATIO_N;
config->pixel_aspect_ratio_d = DEFAULT_PIXEL_ASPECT_RATIO_D;
config->framerate_n = DEFAULT_FRAMERATE_N;
config->framerate_d = DEFAULT_FRAMERATE_D;
config->interlaced = DEFAULT_INTERLACED;
config->top_field_first = DEFAULT_TOP_FIELD_FIRST;
config->frame_size = DEFAULT_FRAME_STRIDE;
gst_video_info_set_format (&(config->info), DEFAULT_FORMAT, DEFAULT_WIDTH,
DEFAULT_HEIGHT);
for (i = 0; i < GST_VIDEO_MAX_PLANES; ++i) {
config->plane_offsets[i] = GST_VIDEO_INFO_PLANE_OFFSET (&(config->info), i);
config->plane_strides[i] = GST_VIDEO_INFO_PLANE_STRIDE (&(config->info), i);
}
}
static void
gst_raw_video_parse_update_info (GstRawVideoParseConfig * config)
{
guint i;
guint n_planes;
guint last_plane;
gsize last_plane_offset, last_plane_size;
GstVideoInfo *info = &(config->info);
GST_DEBUG ("updating info with width %u height %u format %s "
" custom plane strides&offsets %d", config->width, config->height,
gst_video_format_to_string (config->format),
config->custom_plane_strides);
gst_video_info_set_format (info, config->format, config->width,
config->height);
info->colorimetry = config->colorimetry;
GST_VIDEO_INFO_PAR_N (info) = config->pixel_aspect_ratio_n;
GST_VIDEO_INFO_PAR_D (info) = config->pixel_aspect_ratio_d;
GST_VIDEO_INFO_FPS_N (info) = config->framerate_n;
GST_VIDEO_INFO_FPS_D (info) = config->framerate_d;
GST_VIDEO_INFO_INTERLACE_MODE (info) =
config->interlaced ? GST_VIDEO_INTERLACE_MODE_INTERLEAVED :
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
/* Check if there are custom plane strides & offsets that need to be preserved */
if (config->custom_plane_strides) {
/* In case there are, overwrite the offsets&strides computed by
* gst_video_info_set_format with the custom ones */
for (i = 0; i < GST_VIDEO_MAX_PLANES; ++i) {
GST_VIDEO_INFO_PLANE_OFFSET (info, i) = config->plane_offsets[i];
GST_VIDEO_INFO_PLANE_STRIDE (info, i) = config->plane_strides[i];
}
} else {
/* No custom planes&offsets; copy the computed ones into
* the plane_offsets & plane_strides arrays to ensure they
* are equal to the ones in the videoinfo */
for (i = 0; i < GST_VIDEO_MAX_PLANES; ++i) {
config->plane_offsets[i] = GST_VIDEO_INFO_PLANE_OFFSET (info, i);
config->plane_strides[i] = GST_VIDEO_INFO_PLANE_STRIDE (info, i);
}
}
n_planes = GST_VIDEO_INFO_N_PLANES (info);
if (n_planes < 1)
n_planes = 1;
/* Figure out what plane is the physically last one. Typically
* this is the last plane in the list (= at index n_planes-1).
* However, this is not guaranteed, so we have to scan the offsets
* to find the last plane. */
last_plane_offset = 0;
last_plane = 0;
for (i = 0; i < n_planes; ++i) {
gsize plane_offset = GST_VIDEO_INFO_PLANE_OFFSET (info, i);
if (plane_offset >= last_plane_offset) {
last_plane = i;
last_plane_offset = plane_offset;
}
}
if (GST_VIDEO_FORMAT_INFO_IS_TILED (info->finfo)) {
gint stride = GST_VIDEO_INFO_PLANE_STRIDE (info, last_plane);
gint x_tiles = GST_VIDEO_TILE_X_TILES (stride);
gint y_tiles = GST_VIDEO_TILE_Y_TILES (stride);
guint tile_size = GST_VIDEO_FORMAT_INFO_TILE_SIZE (info->finfo, last_plane);
last_plane_size = x_tiles * y_tiles * tile_size;
} else {
gint comp[GST_VIDEO_MAX_COMPONENTS];
gst_video_format_info_component (info->finfo, last_plane, comp);
last_plane_size =
GST_VIDEO_INFO_PLANE_STRIDE (info,
last_plane) * GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (info->finfo,
comp[0], config->height);
}
GST_VIDEO_INFO_SIZE (info) = last_plane_offset + last_plane_size;
GST_DEBUG ("last plane #%u: offset: %" G_GSIZE_FORMAT " size: %"
G_GSIZE_FORMAT " => frame size minus extra padding: %" G_GSIZE_FORMAT,
last_plane, last_plane_offset, last_plane_size,
GST_VIDEO_INFO_SIZE (info));
}
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