a7a776fb58
- Updated launch_with_signal.py with PEP 723 metadata for uv compatibility - Added day/night mode presets with command-line arguments - Implemented proper rollover-only file saving via Python/PIL callbacks - Removed multifilesink from pipeline (was saving every frame incorrectly) - Added funny auto-generated output directory names (e.g., fuzzy-photon) - Updated rollover_example.py to follow same pattern with uv support - Updated rollover_example.c to demonstrate signal detection without file saving - Updated launch_with_capture.ps1 to remove incorrect multifilesink usage - All scripts now save files ONLY on rollover events, not every frame - Pipeline simplified: camera -> linescan -> display (files saved in callback)
90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/* GStreamer
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* Copyright (C) 2024 FIXME <fixme@example.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_LINESCAN_H__
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#define __GST_LINESCAN_H__
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#include <gst/base/gstbasetransform.h>
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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#define GST_TYPE_LINESCAN \
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(gst_linescan_get_type())
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#define GST_LINESCAN(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_LINESCAN,GstLinescan))
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#define GST_LINESCAN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_LINESCAN,GstLinescanClass))
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#define GST_IS_LINESCAN(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_LINESCAN))
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#define GST_IS_LINESCAN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_LINESCAN))
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typedef struct _GstLinescan GstLinescan;
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typedef struct _GstLinescanClass GstLinescanClass;
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typedef enum {
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GST_LINESCAN_DIRECTION_HORIZONTAL = 0, /* Extract row from each frame, stack vertically (width=input, height=output_size) */
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GST_LINESCAN_DIRECTION_VERTICAL /* Extract column from each frame, stack horizontally (width=output_size, height=input) */
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} GstLinescanDirection;
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/**
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* GstLinescan:
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* @element: the parent element.
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*
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* Line scan plugin that extracts a single row or column from each frame
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* and builds them into an output image over time.
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*/
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struct _GstLinescan
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{
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GstBaseTransform element;
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/* Properties */
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GstLinescanDirection direction; /* HORIZONTAL or VERTICAL */
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gint line_index; /* Which row/column to extract (-1 = middle) */
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gint output_size; /* Number of lines to accumulate (width for vertical, height for horizontal) */
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/* Video info */
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GstVideoInfo video_info_in;
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GstVideoInfo video_info_out;
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gboolean video_info_valid;
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/* Internal state */
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guint8 *line_buffer; /* Buffer to accumulate lines */
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gint buffer_position; /* Current position in buffer (how many lines accumulated) */
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gsize line_size; /* Size of one line in bytes */
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gint actual_line_index; /* Computed line index to extract */
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guint64 frame_count; /* Number of frames processed */
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gboolean output_caps_set; /* Whether output caps have been negotiated */
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};
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struct _GstLinescanClass
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{
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GstBaseTransformClass parent_class;
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/* Signals */
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void (*rollover) (GstLinescan *linescan, GstBuffer *buffer);
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};
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GType gst_linescan_get_type(void);
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G_END_DECLS
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#endif /* __GST_LINESCAN_H__ */ |