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) {
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 PIX_FMT_MONOWHITE:
54 n = (avctx->width + 7) >> 3;
60 case PIX_FMT_GRAY16BE:
73 if (avctx->width & 1) {
74 av_log(avctx, AV_LOG_ERROR, "pgmyuv needs even width\n");
75 return AVERROR(EINVAL);
84 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
85 "P%c\n%d %d\n", c, avctx->width, h1);
86 s->bytestream += strlen(s->bytestream);
87 if (avctx->pix_fmt != PIX_FMT_MONOWHITE) {
88 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
89 "%d\n", (avctx->pix_fmt != PIX_FMT_GRAY16BE && avctx->pix_fmt != PIX_FMT_RGB48BE) ? 255 : 65535);
90 s->bytestream += strlen(s->bytestream);
94 linesize = p->linesize[0];
95 for (i = 0; i < h; i++) {
96 memcpy(s->bytestream, ptr, n);
101 if (avctx->pix_fmt == PIX_FMT_YUV420P) {
106 for (i = 0; i < h; i++) {
107 memcpy(s->bytestream, ptr1, n);
109 memcpy(s->bytestream, ptr2, n);
111 ptr1 += p->linesize[1];
112 ptr2 += p->linesize[2];
115 pkt->size = s->bytestream - s->bytestream_start;
116 pkt->flags |= AV_PKT_FLAG_KEY;
123 #if CONFIG_PGM_ENCODER
124 AVCodec ff_pgm_encoder = {
126 .type = AVMEDIA_TYPE_VIDEO,
128 .priv_data_size = sizeof(PNMContext),
130 .encode2 = pnm_encode_frame,
131 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_GRAY8, PIX_FMT_GRAY16BE, PIX_FMT_NONE},
132 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
136 #if CONFIG_PGMYUV_ENCODER
137 AVCodec ff_pgmyuv_encoder = {
139 .type = AVMEDIA_TYPE_VIDEO,
140 .id = CODEC_ID_PGMYUV,
141 .priv_data_size = sizeof(PNMContext),
143 .encode2 = pnm_encode_frame,
144 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
145 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
149 #if CONFIG_PPM_ENCODER
150 AVCodec ff_ppm_encoder = {
152 .type = AVMEDIA_TYPE_VIDEO,
154 .priv_data_size = sizeof(PNMContext),
156 .encode2 = pnm_encode_frame,
157 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB48BE, PIX_FMT_NONE},
158 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
162 #if CONFIG_PBM_ENCODER
163 AVCodec ff_pbm_encoder = {
165 .type = AVMEDIA_TYPE_VIDEO,
167 .priv_data_size = sizeof(PNMContext),
169 .encode2 = pnm_encode_frame,
170 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_MONOWHITE, PIX_FMT_NONE},
171 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),