FFmpeg
pnm.h
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1 /*
2  * PNM image format
3  * Copyright (c) 2002, 2003 Fabrice Bellard
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 #ifndef AVCODEC_PNM_H
23 #define AVCODEC_PNM_H
24 
25 #include "libavutil/half2float.h"
26 #include "avcodec.h"
27 
28 typedef struct PNMContext {
29  const uint8_t *bytestream;
30  const uint8_t *bytestream_start;
31  const uint8_t *bytestream_end;
32  int maxval; ///< maximum value of a pixel
33  int type;
34  int endian;
35  int half;
36  float scale;
37 
39 } PNMContext;
40 
41 int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s);
42 
43 #endif /* AVCODEC_PNM_H */
Half2FloatTables
Definition: half2float.h:27
PNMContext::endian
int endian
Definition: pnm.h:34
ff_pnm_decode_header
int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext *const s)
Definition: pnm.c:65
PNMContext::bytestream_end
const uint8_t * bytestream_end
Definition: pnm.h:31
PNMContext::h2f_tables
Half2FloatTables h2f_tables
Definition: pnm.h:38
PNMContext::bytestream_start
const uint8_t * bytestream_start
Definition: pnm.h:30
PNMContext::scale
float scale
Definition: pnm.h:36
s
#define s(width, name)
Definition: cbs_vp9.c:256
PNMContext
Definition: pnm.h:28
half2float.h
avcodec.h
PNMContext::type
int type
Definition: pnm.h:33
AVCodecContext
main external API structure.
Definition: avcodec.h:398
PNMContext::bytestream
const uint8_t * bytestream
Definition: pnm.h:29
PNMContext::maxval
int maxval
maximum value of a pixel
Definition: pnm.h:32
PNMContext::half
int half
Definition: pnm.h:35