FFmpeg
libwebpenc_common.h
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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 
39 typedef 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
48  int cr_size;
51 
52 int ff_libwebp_error_to_averror(int err);
53 
55 
57  const AVFrame *frame, AVFrame **alt_frame_ptr,
58  WebPPicture **pic_ptr);
59 
60 extern const enum AVPixelFormat ff_libwebpenc_pix_fmts[];
61 extern const AVClass ff_libwebpenc_class;
62 extern const FFCodecDefault ff_libwebp_defaults[];
63 
64 #endif /* AVCODEC_LIBWEBPENC_COMMON_H */
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
LibWebPContextCommon::chroma_warning
int chroma_warning
Definition: libwebpenc_common.h:44
LibWebPContextCommon::quality
float quality
Definition: libwebpenc_common.h:41
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
LibWebPContextCommon::lossless
int lossless
Definition: libwebpenc_common.h:42
ff_libwebpenc_pix_fmts
enum AVPixelFormat ff_libwebpenc_pix_fmts[]
Definition: libwebpenc_common.c:61
FFCodecDefault
Definition: codec_internal.h:97
ff_libwebpenc_class
const AVClass ff_libwebpenc_class
Definition: libwebpenc_common.c:54
av_cold
#define av_cold
Definition: attributes.h:90
s
#define s(width, name)
Definition: cbs_vp9.c:198
frame
static AVFrame * frame
Definition: demux_decode.c:54
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
ff_libwebp_defaults
const FFCodecDefault ff_libwebp_defaults[]
Definition: libwebpenc_common.c:30
codec_internal.h
ff_libwebp_encode_init_common
av_cold int ff_libwebp_encode_init_common(AVCodecContext *avctx)
Definition: libwebpenc_common.c:81
frame.h
LibWebPContextCommon::ref
AVFrame * ref
Definition: libwebpenc_common.h:47
LibWebPContextCommon::conversion_warning
int conversion_warning
Definition: libwebpenc_common.h:45
LibWebPContextCommon
Definition: libwebpenc_common.h:39
attributes.h
log.h
LibWebPContextCommon::cr_threshold
int cr_threshold
Definition: libwebpenc_common.h:49
ff_libwebp_error_to_averror
int ff_libwebp_error_to_averror(int err)
Definition: libwebpenc_common.c:67
avcodec.h
pixfmt.h
ff_libwebp_get_frame
int ff_libwebp_get_frame(AVCodecContext *avctx, LibWebPContextCommon *s, const AVFrame *frame, AVFrame **alt_frame_ptr, WebPPicture **pic_ptr)
Definition: libwebpenc_common.c:124
AVCodecContext
main external API structure.
Definition: avcodec.h:445
LibWebPContextCommon::config
WebPConfig config
Definition: libwebpenc_common.h:46
LibWebPContextCommon::cr_size
int cr_size
Definition: libwebpenc_common.h:48
LibWebPContextCommon::preset
int preset
Definition: libwebpenc_common.h:43