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"
28 static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
29 const AVFrame *pict, int *got_packet)
31 PNMContext *s = avctx->priv_data;
32 AVFrame * const p = &s->picture;
33 int i, h, h1, c, n, linesize, ret;
34 uint8_t *ptr, *ptr1, *ptr2;
36 if ((ret = ff_alloc_packet2(avctx, pkt, avpicture_get_size(avctx->pix_fmt,
38 avctx->height) + 200)) < 0)
42 p->pict_type = AV_PICTURE_TYPE_I;
46 s->bytestream = pkt->data;
47 s->bytestream_end = pkt->data + pkt->size;
51 switch (avctx->pix_fmt) {
52 case AV_PIX_FMT_MONOWHITE:
54 n = (avctx->width + 7) >> 3;
56 case AV_PIX_FMT_GRAY8:
60 case AV_PIX_FMT_GRAY16BE:
64 case AV_PIX_FMT_RGB24:
68 case AV_PIX_FMT_RGB48BE:
72 case AV_PIX_FMT_YUV420P:
73 if (avctx->width & 1 || avctx->height & 1) {
74 av_log(avctx, AV_LOG_ERROR, "pgmyuv needs even width and height\n");
75 return AVERROR(EINVAL);
81 case AV_PIX_FMT_YUV420P16BE:
89 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
90 "P%c\n%d %d\n", c, avctx->width, h1);
91 s->bytestream += strlen(s->bytestream);
92 if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE) {
93 int maxdepth = (1 << (av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth_minus1 + 1)) - 1;
94 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
96 s->bytestream += strlen(s->bytestream);
100 linesize = p->linesize[0];
101 for (i = 0; i < h; i++) {
102 memcpy(s->bytestream, ptr, n);
107 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P || avctx->pix_fmt == AV_PIX_FMT_YUV420P16BE) {
112 for (i = 0; i < h; i++) {
113 memcpy(s->bytestream, ptr1, n);
115 memcpy(s->bytestream, ptr2, n);
117 ptr1 += p->linesize[1];
118 ptr2 += p->linesize[2];
121 pkt->size = s->bytestream - s->bytestream_start;
122 pkt->flags |= AV_PKT_FLAG_KEY;
129 #if CONFIG_PGM_ENCODER
130 AVCodec ff_pgm_encoder = {
132 .type = AVMEDIA_TYPE_VIDEO,
133 .id = AV_CODEC_ID_PGM,
134 .priv_data_size = sizeof(PNMContext),
136 .encode2 = pnm_encode_frame,
137 .pix_fmts = (const enum AVPixelFormat[]){
138 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE
140 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
144 #if CONFIG_PGMYUV_ENCODER
145 AVCodec ff_pgmyuv_encoder = {
147 .type = AVMEDIA_TYPE_VIDEO,
148 .id = AV_CODEC_ID_PGMYUV,
149 .priv_data_size = sizeof(PNMContext),
151 .encode2 = pnm_encode_frame,
152 .pix_fmts = (const enum AVPixelFormat[]){
153 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_NONE
155 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
159 #if CONFIG_PPM_ENCODER
160 AVCodec ff_ppm_encoder = {
162 .type = AVMEDIA_TYPE_VIDEO,
163 .id = AV_CODEC_ID_PPM,
164 .priv_data_size = sizeof(PNMContext),
166 .encode2 = pnm_encode_frame,
167 .pix_fmts = (const enum AVPixelFormat[]){
168 AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48BE, AV_PIX_FMT_NONE
170 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
174 #if CONFIG_PBM_ENCODER
175 AVCodec ff_pbm_encoder = {
177 .type = AVMEDIA_TYPE_VIDEO,
178 .id = AV_CODEC_ID_PBM,
179 .priv_data_size = sizeof(PNMContext),
181 .encode2 = pnm_encode_frame,
182 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_MONOWHITE,
184 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),