summaryrefslogtreecommitdiff
path: root/src/libcamera/media_device.cpp
diff options
context:
space:
mode:
authorDavid Plowman <david.plowman@raspberrypi.com>2021-07-21 12:52:18 +0100
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-08-03 10:54:26 +0300
commita792512496abbf756354cecc7b564e9733ea3fda (patch)
tree405702e9bf03e8ede544cfa3834f6ec74ab0c100 /src/libcamera/media_device.cpp
parente9288e2ee5aa6c1637212ca4b51cd0a951b7bd05 (diff)
utils: raspberrypi: ctt: Fix namespace for sklearn NearestCentroid function
Starting in version 0.22, the NearestCentroid function is only available in the sklearn.neighbors namespace, when it was previously available in both the sklearn.neighbors.nearest_centroid and sklearn.neighbors namespaces. Use sklearn.neighbors as it works on all versions of sklearn. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src/libcamera/media_device.cpp')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.1 (git 2.18.0) at 2025-01-02 04:48:42 +0000
2 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2020, Collabora Ltd.
 *     Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
 *
 * gstlibcamera-utils.c - GStreamer libcamera Utility Function
 */

#include "gstlibcamera-utils.h"

#include <libcamera/formats.h>

using namespace libcamera;

static struct {
	GstVideoFormat gst_format;
	PixelFormat format;
} format_map[] = {
	{ GST_VIDEO_FORMAT_ENCODED, formats::MJPEG },
	{ GST_VIDEO_FORMAT_RGB, formats::BGR888 },
	{ GST_VIDEO_FORMAT_BGR, formats::RGB888 },
	{ GST_VIDEO_FORMAT_ARGB, formats::BGRA8888 },
	{ GST_VIDEO_FORMAT_NV12, formats::NV12 },
	{ GST_VIDEO_FORMAT_NV21, formats::NV21 },
	{ GST_VIDEO_FORMAT_NV16, formats::NV16 },
	{ GST_VIDEO_FORMAT_NV61, formats::NV61 },
	{ GST_VIDEO_FORMAT_NV24, formats::NV24 },
	{ GST_VIDEO_FORMAT_UYVY, formats::UYVY },
	{ GST_VIDEO_FORMAT_VYUY, formats::VYUY },
	{ GST_VIDEO_FORMAT_YUY2, formats::YUYV },
	{ GST_VIDEO_FORMAT_YVYU, formats::YVYU },
	/* \todo NV42 is used in libcamera but is not mapped in GStreamer yet. */
};

static GstVideoFormat
pixel_format_to_gst_format(const PixelFormat &format)
{
	for (const auto &item : format_map) {
		if (item.format == format)
			return item.gst_format;
	}
	return GST_VIDEO_FORMAT_UNKNOWN;
}

static PixelFormat
gst_format_to_pixel_format(GstVideoFormat gst_format)
{
	if (gst_format == GST_VIDEO_FORMAT_ENCODED)
		return PixelFormat{};

	for (const auto &item : format_map)
		if (item.gst_format == gst_format)
			return item.format;
	return PixelFormat{};
}

static GstStructure *
bare_structure_from_format(const PixelFormat &format)
{
	GstVideoFormat gst_format = pixel_format_to_gst_format(format);

	if (gst_format == GST_VIDEO_FORMAT_UNKNOWN)
		return nullptr;

	if (gst_format != GST_VIDEO_FORMAT_ENCODED)
		return gst_structure_new("video/x-raw", "format", G_TYPE_STRING,
					 gst_video_format_to_string(gst_format), nullptr);

	switch (format) {
	case formats::MJPEG:
		return gst_structure_new_empty("image/jpeg");
	default:
		return nullptr;
	}
}

GstCaps *
gst_libcamera_stream_formats_to_caps(const StreamFormats &formats)
{
	GstCaps *caps = gst_caps_new_empty();

	for (PixelFormat pixelformat : formats.pixelformats()) {
		g_autoptr(GstStructure) bare_s = bare_structure_from_format(pixelformat);

		if (!bare_s) {
			GST_WARNING("Unsupported DRM format %" GST_FOURCC_FORMAT,
				    GST_FOURCC_ARGS(pixelformat));
			continue;
		}

		for (const Size &size : formats.sizes(pixelformat)) {
			GstStructure *s = gst_structure_copy(bare_s);
			gst_structure_set(s,
					  "width", G_TYPE_INT, size.width,
					  "height", G_TYPE_INT, size.height,
					  nullptr);
			gst_caps_append_structure(caps, s);
		}

		const SizeRange &range = formats.range(pixelformat);
		if (range.hStep && range.vStep) {
			GstStructure *s = gst_structure_copy(bare_s);
			GValue val = G_VALUE_INIT;

			g_value_init(&val, GST_TYPE_INT_RANGE);
			gst_value_set_int_range_step(&val, range.min.width, range.max.width, range.hStep);
			gst_structure_set_value(s, "width", &val);
			gst_value_set_int_range_step(&val, range.min.height, range.max.height, range.vStep);
			gst_structure_set_value(s, "height", &val);
			g_value_unset(&val);

			gst_caps_append_structure(caps, s);
		}
	}

	return caps;
}

GstCaps *
gst_libcamera_stream_configuration_to_caps(const StreamConfiguration &stream_cfg)
{
	GstCaps *caps = gst_caps_new_empty();
	GstStructure *s = bare_structure_from_format(stream_cfg.pixelFormat);

	gst_structure_set(s,
			  "width", G_TYPE_INT, stream_cfg.size.width,
			  "height", G_TYPE_INT, stream_cfg.size.height,
			  nullptr);
	gst_caps_append_structure(caps, s);

	return caps;
}

void
gst_libcamera_configure_stream_from_caps(StreamConfiguration &stream_cfg,
					 GstCaps *caps)
{
	GstVideoFormat gst_format = pixel_format_to_gst_format(stream_cfg.pixelFormat);

	/* First fixate the caps using default configuration value. */
	g_assert(gst_caps_is_writable(caps));
	caps = gst_caps_truncate(caps);
	GstStructure *s = gst_caps_get_structure(caps, 0);

	gst_structure_fixate_field_nearest_int(s, "width", stream_cfg.size.width);
	gst_structure_fixate_field_nearest_int(s, "height", stream_cfg.size.height);

	if (gst_structure_has_name(s, "video/x-raw")) {
		const gchar *format = gst_video_format_to_string(gst_format);
		gst_structure_fixate_field_string(s, "format", format);
	}

	/* Then configure the stream with the result. */
	if (gst_structure_has_name(s, "video/x-raw")) {
		const gchar *format = gst_structure_get_string(s, "format");
		gst_format = gst_video_format_from_string(format);
		stream_cfg.pixelFormat = gst_format_to_pixel_format(gst_format);
	} else if (gst_structure_has_name(s, "image/jpeg")) {
		stream_cfg.pixelFormat = formats::MJPEG;
	} else {
		g_critical("Unsupported media type: %s", gst_structure_get_name(s));
	}

	gint width, height;
	gst_structure_get_int(s, "width", &width);
	gst_structure_get_int(s, "height", &height);
	stream_cfg.size.width = width;
	stream_cfg.size.height = height;
}

void
gst_libcamera_resume_task(GstTask *task)
{
	/* We only want to resume the task if it's paused. */
	GLibLocker lock(GST_OBJECT(task));
	if (GST_TASK_STATE(task) == GST_TASK_PAUSED) {
		GST_TASK_STATE(task) = GST_TASK_STARTED;
		GST_TASK_SIGNAL(task);
	}
}
generated by cgit v1.2.1 (git 2.18.0) at 2025-01-02 04:48:42 +0000