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
27 static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
28 const AVFrame *pict, int *got_packet)
30 PNMContext *s = avctx->priv_data;
31 AVFrame * const p = &s->picture;
32 int i, h, h1, c, n, linesize, ret;
33 uint8_t *ptr, *ptr1, *ptr2;
35 if ((ret = ff_alloc_packet(pkt, avpicture_get_size(avctx->pix_fmt,
37 avctx->height) + 200)) < 0) {
38 av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
43 p->pict_type = AV_PICTURE_TYPE_I;
47 s->bytestream = pkt->data;
48 s->bytestream_end = pkt->data + pkt->size;
52 switch (avctx->pix_fmt) {
53 case PIX_FMT_MONOWHITE:
55 n = (avctx->width + 7) >> 3;
61 case PIX_FMT_GRAY16BE:
74 if (avctx->width & 1) {
75 av_log(avctx, AV_LOG_ERROR, "pgmyuv needs even width\n");
76 return AVERROR(EINVAL);
85 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
86 "P%c\n%d %d\n", c, avctx->width, h1);
87 s->bytestream += strlen(s->bytestream);
88 if (avctx->pix_fmt != PIX_FMT_MONOWHITE) {
89 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
90 "%d\n", (avctx->pix_fmt != PIX_FMT_GRAY16BE && avctx->pix_fmt != PIX_FMT_RGB48BE) ? 255 : 65535);
91 s->bytestream += strlen(s->bytestream);
95 linesize = p->linesize[0];
96 for (i = 0; i < h; i++) {
97 memcpy(s->bytestream, ptr, n);
102 if (avctx->pix_fmt == PIX_FMT_YUV420P) {
107 for (i = 0; i < h; i++) {
108 memcpy(s->bytestream, ptr1, n);
110 memcpy(s->bytestream, ptr2, n);
112 ptr1 += p->linesize[1];
113 ptr2 += p->linesize[2];
116 pkt->size = s->bytestream - s->bytestream_start;
117 pkt->flags |= AV_PKT_FLAG_KEY;
124 #if CONFIG_PGM_ENCODER
125 AVCodec ff_pgm_encoder = {
127 .type = AVMEDIA_TYPE_VIDEO,
129 .priv_data_size = sizeof(PNMContext),
131 .encode2 = pnm_encode_frame,
132 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_GRAY8, PIX_FMT_GRAY16BE, PIX_FMT_NONE},
133 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
137 #if CONFIG_PGMYUV_ENCODER
138 AVCodec ff_pgmyuv_encoder = {
140 .type = AVMEDIA_TYPE_VIDEO,
141 .id = CODEC_ID_PGMYUV,
142 .priv_data_size = sizeof(PNMContext),
144 .encode2 = pnm_encode_frame,
145 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
146 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
150 #if CONFIG_PPM_ENCODER
151 AVCodec ff_ppm_encoder = {
153 .type = AVMEDIA_TYPE_VIDEO,
155 .priv_data_size = sizeof(PNMContext),
157 .encode2 = pnm_encode_frame,
158 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB48BE, PIX_FMT_NONE},
159 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
163 #if CONFIG_PBM_ENCODER
164 AVCodec ff_pbm_encoder = {
166 .type = AVMEDIA_TYPE_VIDEO,
168 .priv_data_size = sizeof(PNMContext),
170 .encode2 = pnm_encode_frame,
171 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_MONOWHITE, PIX_FMT_NONE},
172 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),