guacamole-spice-protocol/src/libguac/encode-webp.h
2016-03-28 20:39:19 -07:00

59 lines
1.9 KiB
C

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#ifndef GUAC_ENCODE_WEBP_H
#define GUAC_ENCODE_WEBP_H
#include "config.h"
#include "socket.h"
#include "stream.h"
#include <cairo/cairo.h>
/**
* Encodes the given surface as a WebP, and sends the resulting data over the
* given stream and socket as blobs.
*
* @param socket
* The socket to send WebP blobs over.
*
* @param stream
* The stream to associate with each blob.
*
* @param surface
* The Cairo surface to write to the given stream and socket as PNG blobs.
*
* @param quality
* The WebP image quality to use. For lossy images, larger values indicate
* improving quality at the expense of larger file size. For lossless
* images, this dictates the quality of compression, with larger values
* producing smaller files at the expense of speed.
*
* @param lossless
* Zero for a lossy image, non-zero for lossless.
*
* @return
* Zero if the encoding operation is successful, non-zero otherwise.
*/
int guac_webp_write(guac_socket* socket, guac_stream* stream,
cairo_surface_t* surface, int quality, int lossless);
#endif