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INSERT OR REPLACE INTO videos (id, width, height, fps) VALUES ('rave', 400, 400, 10) RETURNING id;
WITH RECURSIVE
video AS (SELECT * FROM videos WHERE id = 'rave'),
_frames(frame) AS (
SELECT 1 UNION ALL
SELECT frame + 1 FROM _frames, video WHERE frame < 50
)
INSERT INTO images (id, width, height, frame, video_id) SELECT CONCAT('rave/', frame), width, height, frame, 'rave' FROM _frames, video;
WITH RECURSIVE
video AS (SELECT * FROM videos WHERE id = 'rave'),
horizontal(x) AS (SELECT width FROM video UNION ALL SELECT x - 1 FROM horizontal WHERE x > 1),
vertical(y) AS (SELECT height FROM video UNION ALL SELECT y - 1 FROM vertical WHERE y > 1),
_frames(id, frame) AS (SELECT id, frame FROM images WHERE video_id = (SELECT id FROM video)),
_pixels(frame_id, x, y, r, g, b) AS
(SELECT
frames_id,
x, y,
ROUND(255 * value)*middle,
ROUND(20 * value),
ROUND(180 * value)*(NOT middle) + 75
FROM (SELECT *,
_frames.id AS frames_id,
(CASE
WHEN SIN((x - 200.0)*(x - 200.0)*0.0004) + TAN((y - 200.0)*(y - 200.0)*0.0004) - 0.1 < COS((10.0 + frame)*(x - 200.0)/(y - 200.0)) THEN 1.0
ELSE 0.0
END) AS value,
(y > 140 AND y < 260) AS middle
FROM vertical, horizontal, _frames)
)
INSERT INTO pixels (image_id, x, y, r, g, b) SELECT frame_id, x, y, r, g, b FROM _pixels;
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