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
22 #include "libavutil/pixdesc.h"
26 static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
27 const AVFrame *p, int *got_packet)
29 uint8_t *bytestream, *bytestream_start, *bytestream_end;
30 int i, h, h1, c, n, linesize, ret;
31 uint8_t *ptr, *ptr1, *ptr2;
33 if ((ret = ff_alloc_packet2(avctx, pkt, avpicture_get_size(avctx->pix_fmt,
35 avctx->height) + 200, 0)) < 0)
39 bytestream = pkt->data;
40 bytestream_end = pkt->data + pkt->size;
44 switch (avctx->pix_fmt) {
45 case AV_PIX_FMT_MONOWHITE:
47 n = (avctx->width + 7) >> 3;
49 case AV_PIX_FMT_GRAY8:
53 case AV_PIX_FMT_GRAY16BE:
57 case AV_PIX_FMT_RGB24:
61 case AV_PIX_FMT_RGB48BE:
65 case AV_PIX_FMT_YUV420P:
66 if (avctx->width & 1 || avctx->height & 1) {
67 av_log(avctx, AV_LOG_ERROR, "pgmyuv needs even width and height\n");
68 return AVERROR(EINVAL);
74 case AV_PIX_FMT_YUV420P16BE:
82 snprintf(bytestream, bytestream_end - bytestream,
83 "P%c\n%d %d\n", c, avctx->width, h1);
84 bytestream += strlen(bytestream);
85 if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE) {
86 int maxdepth = (1 << av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth) - 1;
87 snprintf(bytestream, bytestream_end - bytestream,
89 bytestream += strlen(bytestream);
93 linesize = p->linesize[0];
94 for (i = 0; i < h; i++) {
95 memcpy(bytestream, ptr, n);
100 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P || avctx->pix_fmt == AV_PIX_FMT_YUV420P16BE) {
105 for (i = 0; i < h; i++) {
106 memcpy(bytestream, ptr1, n);
108 memcpy(bytestream, ptr2, n);
110 ptr1 += p->linesize[1];
111 ptr2 += p->linesize[2];
114 pkt->size = bytestream - bytestream_start;
115 pkt->flags |= AV_PKT_FLAG_KEY;
121 static av_cold int pnm_encode_init(AVCodecContext *avctx)
123 #if FF_API_CODED_FRAME
124 FF_DISABLE_DEPRECATION_WARNINGS
125 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
126 avctx->coded_frame->key_frame = 1;
127 FF_ENABLE_DEPRECATION_WARNINGS
133 #if CONFIG_PGM_ENCODER
134 AVCodec ff_pgm_encoder = {
136 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
137 .type = AVMEDIA_TYPE_VIDEO,
138 .id = AV_CODEC_ID_PGM,
139 .init = pnm_encode_init,
140 .encode2 = pnm_encode_frame,
141 .pix_fmts = (const enum AVPixelFormat[]){
142 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE
147 #if CONFIG_PGMYUV_ENCODER
148 AVCodec ff_pgmyuv_encoder = {
150 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
151 .type = AVMEDIA_TYPE_VIDEO,
152 .id = AV_CODEC_ID_PGMYUV,
153 .init = pnm_encode_init,
154 .encode2 = pnm_encode_frame,
155 .pix_fmts = (const enum AVPixelFormat[]){
156 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_NONE
161 #if CONFIG_PPM_ENCODER
162 AVCodec ff_ppm_encoder = {
164 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
165 .type = AVMEDIA_TYPE_VIDEO,
166 .id = AV_CODEC_ID_PPM,
167 .init = pnm_encode_init,
168 .encode2 = pnm_encode_frame,
169 .pix_fmts = (const enum AVPixelFormat[]){
170 AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48BE, AV_PIX_FMT_NONE
175 #if CONFIG_PBM_ENCODER
176 AVCodec ff_pbm_encoder = {
178 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),
179 .type = AVMEDIA_TYPE_VIDEO,
180 .id = AV_CODEC_ID_PBM,
181 .init = pnm_encode_init,
182 .encode2 = pnm_encode_frame,
183 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_MONOWHITE,