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/intreadwrite.h"
23 #include "libavutil/imgutils.h"
24 #include "libavutil/pixdesc.h"
28 static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
29 const AVFrame *p, int *got_packet)
31 uint8_t *bytestream, *bytestream_start, *bytestream_end;
32 int i, h, h1, c, n, linesize, ret;
33 uint8_t *ptr, *ptr1, *ptr2;
34 int size = av_image_get_buffer_size(avctx->pix_fmt,
35 avctx->width, avctx->height, 1);
37 if ((ret = ff_alloc_packet2(avctx, pkt, size + 200, 0)) < 0)
41 bytestream = pkt->data;
42 bytestream_end = pkt->data + pkt->size;
46 switch (avctx->pix_fmt) {
47 case AV_PIX_FMT_MONOWHITE:
49 n = (avctx->width + 7) >> 3;
51 case AV_PIX_FMT_GRAY8:
55 case AV_PIX_FMT_GRAY16BE:
59 case AV_PIX_FMT_RGB24:
63 case AV_PIX_FMT_RGB48BE:
67 case AV_PIX_FMT_YUV420P:
68 if (avctx->width & 1 || avctx->height & 1) {
69 av_log(avctx, AV_LOG_ERROR, "pgmyuv needs even width and height\n");
70 return AVERROR(EINVAL);
76 case AV_PIX_FMT_YUV420P16BE:
81 case AV_PIX_FMT_GBRPF32:
88 snprintf(bytestream, bytestream_end - bytestream,
89 "P%c\n%d %d\n", c, avctx->width, h1);
90 bytestream += strlen(bytestream);
91 if (avctx->pix_fmt == AV_PIX_FMT_GBRPF32)
92 snprintf(bytestream, bytestream_end - bytestream,
93 "%f\n", avctx->pix_fmt == AV_PIX_FMT_GBRPF32BE ? 1.f: -1.f);
94 bytestream += strlen(bytestream);
95 if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE &&
96 avctx->pix_fmt != AV_PIX_FMT_GBRPF32) {
97 int maxdepth = (1 << av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth) - 1;
98 snprintf(bytestream, bytestream_end - bytestream,
100 bytestream += strlen(bytestream);
103 if (avctx->pix_fmt == AV_PIX_FMT_GBRPF32) {
104 float *r = (float *)p->data[2];
105 float *g = (float *)p->data[0];
106 float *b = (float *)p->data[1];
108 for (int i = 0; i < avctx->height; i++) {
109 for (int j = 0; j < avctx->width; j++) {
110 AV_WN32(bytestream + 0, av_float2int(r[j]));
111 AV_WN32(bytestream + 4, av_float2int(g[j]));
112 AV_WN32(bytestream + 8, av_float2int(b[j]));
116 r += p->linesize[2] / 4;
117 g += p->linesize[0] / 4;
118 b += p->linesize[1] / 4;
122 linesize = p->linesize[0];
123 for (i = 0; i < h; i++) {
124 memcpy(bytestream, ptr, n);
130 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P || avctx->pix_fmt == AV_PIX_FMT_YUV420P16BE) {
135 for (i = 0; i < h; i++) {
136 memcpy(bytestream, ptr1, n);
138 memcpy(bytestream, ptr2, n);
140 ptr1 += p->linesize[1];
141 ptr2 += p->linesize[2];
144 pkt->size = bytestream - bytestream_start;
145 pkt->flags |= AV_PKT_FLAG_KEY;
151 static av_cold int pnm_encode_init(AVCodecContext *avctx)
153 #if FF_API_CODED_FRAME
154 FF_DISABLE_DEPRECATION_WARNINGS
155 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
156 avctx->coded_frame->key_frame = 1;
157 FF_ENABLE_DEPRECATION_WARNINGS
163 #if CONFIG_PGM_ENCODER
164 AVCodec ff_pgm_encoder = {
166 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
167 .type = AVMEDIA_TYPE_VIDEO,
168 .id = AV_CODEC_ID_PGM,
169 .init = pnm_encode_init,
170 .encode2 = pnm_encode_frame,
171 .pix_fmts = (const enum AVPixelFormat[]){
172 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE
174 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
178 #if CONFIG_PGMYUV_ENCODER
179 AVCodec ff_pgmyuv_encoder = {
181 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
182 .type = AVMEDIA_TYPE_VIDEO,
183 .id = AV_CODEC_ID_PGMYUV,
184 .init = pnm_encode_init,
185 .encode2 = pnm_encode_frame,
186 .pix_fmts = (const enum AVPixelFormat[]){
187 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_NONE
189 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
193 #if CONFIG_PPM_ENCODER
194 AVCodec ff_ppm_encoder = {
196 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
197 .type = AVMEDIA_TYPE_VIDEO,
198 .id = AV_CODEC_ID_PPM,
199 .init = pnm_encode_init,
200 .encode2 = pnm_encode_frame,
201 .pix_fmts = (const enum AVPixelFormat[]){
202 AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48BE, AV_PIX_FMT_NONE
204 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
208 #if CONFIG_PBM_ENCODER
209 AVCodec ff_pbm_encoder = {
211 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),
212 .type = AVMEDIA_TYPE_VIDEO,
213 .id = AV_CODEC_ID_PBM,
214 .init = pnm_encode_init,
215 .encode2 = pnm_encode_frame,
216 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_MONOWHITE,
218 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
222 #if CONFIG_PFM_ENCODER
223 AVCodec ff_pfm_encoder = {
225 .long_name = NULL_IF_CONFIG_SMALL("PFM (Portable FloatMap) image"),
226 .type = AVMEDIA_TYPE_VIDEO,
227 .id = AV_CODEC_ID_PFM,
228 .init = pnm_encode_init,
229 .encode2 = pnm_encode_frame,
230 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_GBRPF32,
232 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,