libwebsockets
Lightweight C library for HTML5 websockets
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lws-jpeg.h
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1/*
2 * lws jpeg
3 *
4 * Copyright (C) 2019 - 2022 Andy Green <andy@warmcat.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 *
24 * Based on public domain original with notice -->
25 *
26 * picojpeg.c v1.1 - Public domain, Rich Geldreich <richgel99@gmail.com>
27 * Nov. 27, 2010 - Initial release
28 * Feb. 9, 2013 - Added H1V2/H2V1 support, cleaned up macros, signed shift fixes
29 * Also integrated and tested changes from Chris Phoenix <cphoenix@gmail.com>.
30 *
31 * This version is rewritten for lws, changing the whole approach to decode on
32 * demand to issue a line of output at a time, statefully. This version is
33 * licensed MIT to match the rest of lws.
34 */
35
36typedef struct lws_jpeg lws_jpeg_t;
37
46
56
90 const uint8_t **buf, size_t *size, char hold_at_metadata);
91
92LWS_VISIBLE LWS_EXTERN unsigned int
94LWS_VISIBLE LWS_EXTERN unsigned int
96LWS_VISIBLE LWS_EXTERN unsigned int
98LWS_VISIBLE LWS_EXTERN unsigned int
100LWS_VISIBLE LWS_EXTERN unsigned int
102LWS_VISIBLE LWS_EXTERN unsigned int
104
#define LWS_EXTERN
unsigned char uint8_t
lws_stateful_ret_t
#define LWS_VISIBLE
LWS_VISIBLE LWS_EXTERN unsigned int lws_jpeg_get_width(const lws_jpeg_t *j)
LWS_VISIBLE LWS_EXTERN unsigned int lws_jpeg_get_height(const lws_jpeg_t *j)
LWS_VISIBLE LWS_EXTERN void lws_jpeg_free(lws_jpeg_t **j)
LWS_VISIBLE LWS_EXTERN lws_stateful_ret_t lws_jpeg_emit_next_line(lws_jpeg_t *j, const uint8_t **ppix, const uint8_t **buf, size_t *size, char hold_at_metadata)
LWS_VISIBLE LWS_EXTERN unsigned int lws_jpeg_get_bitdepth(const lws_jpeg_t *j)
LWS_VISIBLE LWS_EXTERN unsigned int lws_jpeg_get_bpp(const lws_jpeg_t *j)
LWS_VISIBLE LWS_EXTERN unsigned int lws_jpeg_get_components(const lws_jpeg_t *j)
LWS_VISIBLE LWS_EXTERN unsigned int lws_jpeg_get_pixelsize(const lws_jpeg_t *j)
struct lws_jpeg lws_jpeg_t
Definition lws-jpeg.h:36
LWS_VISIBLE LWS_EXTERN lws_jpeg_t * lws_jpeg_new(void)