Define AVMediaType enum, and use it instead of enum CodecType, which
[libav.git] / libavcodec / pnmenc.c
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 #include "avcodec.h"
23 #include "bytestream.h"
24 #include "pnm.h"
25
26
27 static int pnm_encode_frame(AVCodecContext *avctx, unsigned char *outbuf,
28 int buf_size, void *data)
29 {
30 PNMContext *s = avctx->priv_data;
31 AVFrame *pict = data;
32 AVFrame * const p = (AVFrame*)&s->picture;
33 int i, h, h1, c, n, linesize;
34 uint8_t *ptr, *ptr1, *ptr2;
35
36 if (buf_size < avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height) + 200) {
37 av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
38 return -1;
39 }
40
41 *p = *pict;
42 p->pict_type = FF_I_TYPE;
43 p->key_frame = 1;
44
45 s->bytestream_start =
46 s->bytestream = outbuf;
47 s->bytestream_end = outbuf + buf_size;
48
49 h = avctx->height;
50 h1 = h;
51 switch (avctx->pix_fmt) {
52 case PIX_FMT_MONOWHITE:
53 c = '4';
54 n = (avctx->width + 7) >> 3;
55 break;
56 case PIX_FMT_GRAY8:
57 c = '5';
58 n = avctx->width;
59 break;
60 case PIX_FMT_GRAY16BE:
61 c = '5';
62 n = avctx->width * 2;
63 break;
64 case PIX_FMT_RGB24:
65 c = '6';
66 n = avctx->width * 3;
67 break;
68 case PIX_FMT_RGB48BE:
69 c = '6';
70 n = avctx->width * 6;
71 break;
72 case PIX_FMT_YUV420P:
73 c = '5';
74 n = avctx->width;
75 h1 = (h * 3) / 2;
76 break;
77 default:
78 return -1;
79 }
80 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
81 "P%c\n%d %d\n", c, avctx->width, h1);
82 s->bytestream += strlen(s->bytestream);
83 if (avctx->pix_fmt != PIX_FMT_MONOWHITE) {
84 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
85 "%d\n", (avctx->pix_fmt != PIX_FMT_GRAY16BE && avctx->pix_fmt != PIX_FMT_RGB48BE) ? 255 : 65535);
86 s->bytestream += strlen(s->bytestream);
87 }
88
89 ptr = p->data[0];
90 linesize = p->linesize[0];
91 for (i = 0; i < h; i++) {
92 memcpy(s->bytestream, ptr, n);
93 s->bytestream += n;
94 ptr += linesize;
95 }
96
97 if (avctx->pix_fmt == PIX_FMT_YUV420P) {
98 h >>= 1;
99 n >>= 1;
100 ptr1 = p->data[1];
101 ptr2 = p->data[2];
102 for (i = 0; i < h; i++) {
103 memcpy(s->bytestream, ptr1, n);
104 s->bytestream += n;
105 memcpy(s->bytestream, ptr2, n);
106 s->bytestream += n;
107 ptr1 += p->linesize[1];
108 ptr2 += p->linesize[2];
109 }
110 }
111 return s->bytestream - s->bytestream_start;
112 }
113
114
115 #if CONFIG_PGM_ENCODER
116 AVCodec pgm_encoder = {
117 "pgm",
118 AVMEDIA_TYPE_VIDEO,
119 CODEC_ID_PGM,
120 sizeof(PNMContext),
121 ff_pnm_init,
122 pnm_encode_frame,
123 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_GRAY8, PIX_FMT_GRAY16BE, PIX_FMT_NONE},
124 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
125 };
126 #endif
127
128 #if CONFIG_PGMYUV_ENCODER
129 AVCodec pgmyuv_encoder = {
130 "pgmyuv",
131 AVMEDIA_TYPE_VIDEO,
132 CODEC_ID_PGMYUV,
133 sizeof(PNMContext),
134 ff_pnm_init,
135 pnm_encode_frame,
136 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
137 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
138 };
139 #endif
140
141 #if CONFIG_PPM_ENCODER
142 AVCodec ppm_encoder = {
143 "ppm",
144 AVMEDIA_TYPE_VIDEO,
145 CODEC_ID_PPM,
146 sizeof(PNMContext),
147 ff_pnm_init,
148 pnm_encode_frame,
149 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB48BE, PIX_FMT_NONE},
150 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
151 };
152 #endif
153
154 #if CONFIG_PBM_ENCODER
155 AVCodec pbm_encoder = {
156 "pbm",
157 AVMEDIA_TYPE_VIDEO,
158 CODEC_ID_PBM,
159 sizeof(PNMContext),
160 ff_pnm_init,
161 pnm_encode_frame,
162 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_MONOWHITE, PIX_FMT_NONE},
163 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),
164 };
165 #endif