1/*
2 * WebP encoding support via libwebp
3 * Copyright (c) 2013 Justin Ruggles <justin.ruggles@gmail.com>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * WebP encoder using libwebp: common structs and methods.
25 */
26
27#ifndef AVCODEC_LIBWEBPENC_COMMON_H
28#define AVCODEC_LIBWEBPENC_COMMON_H
29
30#include <webp/encode.h>
31
32#include "libavutil/attributes.h"
33#include "libavutil/frame.h"
34#include "libavutil/log.h"
35#include "libavutil/pixfmt.h"
36#include "avcodec.h"
37#include "codec_internal.h"
38
39typedef struct LibWebPContextCommon {
40    AVClass *class;         // class for AVOptions
41    float quality;          // lossy quality 0 - 100
42    int lossless;           // use lossless encoding
43    int preset;             // configuration preset
44    int chroma_warning;     // chroma linesize mismatch warning has been printed
45    int conversion_warning; // pixel format conversion warning has been printed
46    WebPConfig config;      // libwebp configuration
47    AVFrame *ref;
48    int cr_size;
49    int cr_threshold;
50} LibWebPContextCommon;
51
52int ff_libwebp_error_to_averror(int err);
53
54av_cold int ff_libwebp_encode_init_common(AVCodecContext *avctx);
55
56int ff_libwebp_get_frame(AVCodecContext *avctx, LibWebPContextCommon *s,
57                         const AVFrame *frame, AVFrame **alt_frame_ptr,
58                         WebPPicture **pic_ptr);
59
60extern const enum AVPixelFormat ff_libwebpenc_pix_fmts[];
61extern const AVClass ff_libwebpenc_class;
62extern const FFCodecDefault ff_libwebp_defaults[];
63
64#endif /* AVCODEC_LIBWEBPENC_COMMON_H */
65