From 96ebb1b89007beb4c986d4fd025a1a3b04cac869 Mon Sep 17 00:00:00 2001
From: jaseg <code@jaseg.net>
Date: Sun, 3 Jan 2016 21:46:05 +0100
Subject: host: Add gifserver
---
host/gifserver.py | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
create mode 100755 host/gifserver.py
diff --git a/host/gifserver.py b/host/gifserver.py
new file mode 100755
index 0000000..7fbbfe3
--- /dev/null
+++ b/host/gifserver.py
@@ -0,0 +1,80 @@
+#!/usr/bin/env python
+
+import argparse, time, argparse, textwrap, threading, io
+from urllib.parse import urlparse
+from PIL import Image, GifImagePlugin, ImageSequence, ImageOps
+from flask import Flask, request
+
+import crap
+
+import config
+
+
+gif = None
+gif_cond = threading.Condition()
+
+def putgif(filelike):
+ global gif
+ with gif_cond:
+ gif = filelike
+ gif_cond.notify()
+
+
+def sendgifs(target):
+ thost, tport = target.split(':')
+ crapthing = crap.CRAPClient(thost, int(tport))
+ last_gif = None
+
+ while True:
+ with gif_cond:
+ gif_cond.wait_for(lambda: last_gif != gif)
+
+ last_gif = gif
+ img = Image.open(last_gif)
+ palette = img.getpalette()
+ last_frame = Image.new("RGBA", img.size)
+ sleepiness = min(img.info.get('duration', 100) / 1000.0, 10.0)
+
+ for frame in ImageSequence.Iterator(img):
+ #This works around a known bug in Pillow
+ #See also: http://stackoverflow.com/questions/4904940/python-converting-gif-frames-to-png
+ frame.putpalette(palette)
+ c = frame.convert("RGBA")
+
+ if 'background' in img.info and 'transparency' in img.info:
+ last_frame.paste(c, c)
+ else:
+ last_frame = c
+
+ im = last_frame.copy()
+ im = ImageOps.fit(im, (config.display_width, config.display_height), Image.NEAREST, centering=(0.5, 0.5))
+ crapthing.sendframe(im.tobytes())
+ time.sleep(sleepiness)
+ if last_gif != gif:
+ break
+
+
+app = Flask(__name__)
+#app.debug = True
+
+@app.route('/', methods=('POST', 'GET'))
+def index():
+ if request.method == 'GET':
+ return textwrap.dedent('''
+ <form action="#" method="POST" enctype="multipart/form-data">
+ <input name="gif" type="file" accept="image/gif">
+ <input type="submit" value="upload">
+ </form>''')
+ else: #POST
+ putgif(io.BytesIO(request.files['gif'].read()))
+ return 'Done, thanks!'
+
+if __name__ == '__main__':
+ parser = argparse.ArgumentParser(description='Present a web interface to stream .gif files via CRAP to a matelight')
+ parser.add_argument('target', type=str, default='localhost:1337', nargs='?', help='Target matelight, host:port notation')
+ args = parser.parse_args()
+
+ gif_sender = threading.Thread(target=sendgifs, args=(args.target,), daemon=True)
+ gif_sender.start()
+ app.run()
+
--
cgit