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_packet2(avctx, pkt, avpicture_get_size(avctx->pix_fmt,
37 avctx->height) + 200)) < 0)
41 p->pict_type = AV_PICTURE_TYPE_I;
45 s->bytestream = pkt->data;
46 s->bytestream_end = pkt->data + pkt->size;
50 switch (avctx->pix_fmt) {
51 case AV_PIX_FMT_MONOWHITE:
53 n = (avctx->width + 7) >> 3;
55 case AV_PIX_FMT_GRAY8:
59 case AV_PIX_FMT_GRAY16BE:
63 case AV_PIX_FMT_RGB24:
67 case AV_PIX_FMT_RGB48BE:
71 case AV_PIX_FMT_YUV420P:
72 if (avctx->width & 1 || avctx->height & 1) {
73 av_log(avctx, AV_LOG_ERROR, "pgmyuv needs even width and height\n");
74 return AVERROR(EINVAL);
83 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
84 "P%c\n%d %d\n", c, avctx->width, h1);
85 s->bytestream += strlen(s->bytestream);
86 if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE) {
87 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
88 "%d\n", (avctx->pix_fmt != AV_PIX_FMT_GRAY16BE && avctx->pix_fmt != AV_PIX_FMT_RGB48BE) ? 255 : 65535);
89 s->bytestream += strlen(s->bytestream);
93 linesize = p->linesize[0];
94 for (i = 0; i < h; i++) {
95 memcpy(s->bytestream, ptr, n);
100 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
105 for (i = 0; i < h; i++) {
106 memcpy(s->bytestream, ptr1, n);
108 memcpy(s->bytestream, ptr2, n);
110 ptr1 += p->linesize[1];
111 ptr2 += p->linesize[2];
114 pkt->size = s->bytestream - s->bytestream_start;
115 pkt->flags |= AV_PKT_FLAG_KEY;
122 #if CONFIG_PGM_ENCODER
123 AVCodec ff_pgm_encoder = {
125 .type = AVMEDIA_TYPE_VIDEO,
126 .id = AV_CODEC_ID_PGM,
127 .priv_data_size = sizeof(PNMContext),
129 .encode2 = pnm_encode_frame,
130 .pix_fmts = (const enum AVPixelFormat[]){
131 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16BE, AV_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 = AV_CODEC_ID_PGMYUV,
142 .priv_data_size = sizeof(PNMContext),
144 .encode2 = pnm_encode_frame,
145 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_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,
154 .id = AV_CODEC_ID_PPM,
155 .priv_data_size = sizeof(PNMContext),
157 .encode2 = pnm_encode_frame,
158 .pix_fmts = (const enum AVPixelFormat[]){
159 AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48BE, AV_PIX_FMT_NONE
161 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
165 #if CONFIG_PBM_ENCODER
166 AVCodec ff_pbm_encoder = {
168 .type = AVMEDIA_TYPE_VIDEO,
169 .id = AV_CODEC_ID_PBM,
170 .priv_data_size = sizeof(PNMContext),
172 .encode2 = pnm_encode_frame,
173 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_MONOWHITE,
175 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),