3 * Copyright (c) 2002, 2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; 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"
24 #include "bytestream.h"
29 static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
30 const AVFrame *pict, int *got_packet)
32 PNMContext *s = avctx->priv_data;
33 AVFrame * const p = &s->picture;
34 int i, h, h1, c, n, linesize, ret;
35 uint8_t *ptr, *ptr1, *ptr2;
37 if ((ret = ff_alloc_packet(pkt, avpicture_get_size(avctx->pix_fmt,
39 avctx->height) + 200)) < 0) {
40 av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
45 p->pict_type = AV_PICTURE_TYPE_I;
49 s->bytestream = pkt->data;
50 s->bytestream_end = pkt->data + pkt->size;
54 switch (avctx->pix_fmt) {
55 case AV_PIX_FMT_MONOWHITE:
57 n = (avctx->width + 7) >> 3;
59 case AV_PIX_FMT_GRAY8:
63 case AV_PIX_FMT_GRAY16BE:
67 case AV_PIX_FMT_RGB24:
71 case AV_PIX_FMT_RGB48BE:
75 case AV_PIX_FMT_YUV420P:
80 case AV_PIX_FMT_YUV420P16BE:
88 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
89 "P%c\n%d %d\n", c, avctx->width, h1);
90 s->bytestream += strlen(s->bytestream);
91 if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE) {
92 int maxdepth = (1 << (av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth_minus1 + 1)) - 1;
93 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
95 s->bytestream += strlen(s->bytestream);
99 linesize = p->linesize[0];
100 for (i = 0; i < h; i++) {
101 memcpy(s->bytestream, ptr, n);
106 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P || avctx->pix_fmt == AV_PIX_FMT_YUV420P16BE) {
111 for (i = 0; i < h; i++) {
112 memcpy(s->bytestream, ptr1, n);
114 memcpy(s->bytestream, ptr2, n);
116 ptr1 += p->linesize[1];
117 ptr2 += p->linesize[2];
120 pkt->size = s->bytestream - s->bytestream_start;
121 pkt->flags |= AV_PKT_FLAG_KEY;
128 #if CONFIG_PGM_ENCODER
129 AVCodec ff_pgm_encoder = {
131 .type = AVMEDIA_TYPE_VIDEO,
132 .id = AV_CODEC_ID_PGM,
133 .priv_data_size = sizeof(PNMContext),
135 .encode2 = pnm_encode_frame,
136 .pix_fmts = (const enum AVPixelFormat[]){
137 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE
139 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
143 #if CONFIG_PGMYUV_ENCODER
144 AVCodec ff_pgmyuv_encoder = {
146 .type = AVMEDIA_TYPE_VIDEO,
147 .id = AV_CODEC_ID_PGMYUV,
148 .priv_data_size = sizeof(PNMContext),
150 .encode2 = pnm_encode_frame,
151 .pix_fmts = (const enum AVPixelFormat[]){
152 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_NONE
154 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
158 #if CONFIG_PPM_ENCODER
159 AVCodec ff_ppm_encoder = {
161 .type = AVMEDIA_TYPE_VIDEO,
162 .id = AV_CODEC_ID_PPM,
163 .priv_data_size = sizeof(PNMContext),
165 .encode2 = pnm_encode_frame,
166 .pix_fmts = (const enum AVPixelFormat[]){
167 AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48BE, AV_PIX_FMT_NONE
169 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
173 #if CONFIG_PBM_ENCODER
174 AVCodec ff_pbm_encoder = {
176 .type = AVMEDIA_TYPE_VIDEO,
177 .id = AV_CODEC_ID_PBM,
178 .priv_data_size = sizeof(PNMContext),
180 .encode2 = pnm_encode_frame,
181 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_MONOWHITE,
183 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),