3 * Copyright (c) 2002, 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
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.
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.
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
26 static int pnm_encode_frame(AVCodecContext *avctx, unsigned char *outbuf,
27 int buf_size, void *data)
29 PNMContext *s = avctx->priv_data;
31 AVFrame * const p = (AVFrame*)&s->picture;
32 int i, h, h1, c, n, linesize;
33 uint8_t *ptr, *ptr1, *ptr2;
35 if (buf_size < avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height) + 200) {
36 av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
41 p->pict_type = AV_PICTURE_TYPE_I;
45 s->bytestream = outbuf;
46 s->bytestream_end = outbuf + buf_size;
50 switch (avctx->pix_fmt) {
51 case PIX_FMT_MONOWHITE:
53 n = (avctx->width + 7) >> 3;
59 case PIX_FMT_GRAY16BE:
79 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
80 "P%c\n%d %d\n", c, avctx->width, h1);
81 s->bytestream += strlen(s->bytestream);
82 if (avctx->pix_fmt != PIX_FMT_MONOWHITE) {
83 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
84 "%d\n", (avctx->pix_fmt != PIX_FMT_GRAY16BE && avctx->pix_fmt != PIX_FMT_RGB48BE) ? 255 : 65535);
85 s->bytestream += strlen(s->bytestream);
89 linesize = p->linesize[0];
90 for (i = 0; i < h; i++) {
91 memcpy(s->bytestream, ptr, n);
96 if (avctx->pix_fmt == PIX_FMT_YUV420P) {
101 for (i = 0; i < h; i++) {
102 memcpy(s->bytestream, ptr1, n);
104 memcpy(s->bytestream, ptr2, n);
106 ptr1 += p->linesize[1];
107 ptr2 += p->linesize[2];
110 return s->bytestream - s->bytestream_start;
114 #if CONFIG_PGM_ENCODER
115 AVCodec ff_pgm_encoder = {
117 .type = AVMEDIA_TYPE_VIDEO,
119 .priv_data_size = sizeof(PNMContext),
121 .encode = pnm_encode_frame,
122 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_GRAY8, PIX_FMT_GRAY16BE, PIX_FMT_NONE},
123 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
127 #if CONFIG_PGMYUV_ENCODER
128 AVCodec ff_pgmyuv_encoder = {
130 .type = AVMEDIA_TYPE_VIDEO,
131 .id = CODEC_ID_PGMYUV,
132 .priv_data_size = sizeof(PNMContext),
134 .encode = pnm_encode_frame,
135 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
136 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
140 #if CONFIG_PPM_ENCODER
141 AVCodec ff_ppm_encoder = {
143 .type = AVMEDIA_TYPE_VIDEO,
145 .priv_data_size = sizeof(PNMContext),
147 .encode = pnm_encode_frame,
148 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB48BE, PIX_FMT_NONE},
149 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
153 #if CONFIG_PBM_ENCODER
154 AVCodec ff_pbm_encoder = {
156 .type = AVMEDIA_TYPE_VIDEO,
158 .priv_data_size = sizeof(PNMContext),
160 .encode = pnm_encode_frame,
161 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_MONOWHITE, PIX_FMT_NONE},
162 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),