Python bindings for WebP
Project description
Usage
Writing a PIL image to a WebP file
pic = webp.WebPPicture.from_pil(img)
buf = pic.encode().buffer()
with open('image.webp', 'wb') as f:
f.write(buf)Reading a WebP file to a numpy array
with open('image.webp', 'rb') as f:
webp_data = webp.WebPData.from_buffer(f.read())
arr = webp_data.decode() # Defaults to RGBAWriting an animation
enc = webp.WebPAnimEncoder.new(width, height)
timestamp_ms = 0
for img in imgs:
pic = webp.WebPPicture.from_pil(img)
enc.encode_frame(pic, timestamp_ms)
timestamp_ms += 250
anim_data = enc.assemble(timestamp_ms)
with open('anim.webp', 'wb') as f:
f.write(anim_data.buffer())Reading an animation
with open('anim.webp', 'rb') as f:
webp_data = webp.WebPData.from_buffer(f.read())
dec = webp.WebPAnimDecoder.new(webp_data)
for arr, timestamp_ms in dec.frames():
# `arr` contains decoded pixels for the frame
# `timestamp_ms` contains the _end_ time of the frame
passRequirements
Python 3 (tested with v3.6)
libwebp, libwebpmux, libwebpdemux (tested with v0.6.0)
Pillow (tested with v4.1.1)
numpy (tested with v1.12.1)
Features
Still image encoding/decoding
Animation encoding/decoding
Automatic memory management
Support for PIL.Image and numpy.array objects
Not implemented
Encoding/decoding still images in YUV color mode
Advanced muxing/demuxing (color profiles, etc.)
Expose all useful fields
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Source Distribution
webp-0.1.0a4.tar.gz
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