3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4 * Copyright (c) 2004 Michael Niedermayer
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "libavutil/intreadwrite.h"
24 #include "libavutil/avstring.h"
42 static const IdStrMap img_tags[] = {
43 { CODEC_ID_MJPEG , "jpeg"},
44 { CODEC_ID_MJPEG , "jpg"},
45 { CODEC_ID_LJPEG , "ljpg"},
46 { CODEC_ID_PNG , "png"},
47 { CODEC_ID_PNG , "mng"},
48 { CODEC_ID_PPM , "ppm"},
49 { CODEC_ID_PPM , "pnm"},
50 { CODEC_ID_PGM , "pgm"},
51 { CODEC_ID_PGMYUV , "pgmyuv"},
52 { CODEC_ID_PBM , "pbm"},
53 { CODEC_ID_PAM , "pam"},
54 { CODEC_ID_MPEG1VIDEO, "mpg1-img"},
55 { CODEC_ID_MPEG2VIDEO, "mpg2-img"},
56 { CODEC_ID_MPEG4 , "mpg4-img"},
57 { CODEC_ID_FFV1 , "ffv1-img"},
58 { CODEC_ID_RAWVIDEO , "y"},
59 { CODEC_ID_BMP , "bmp"},
60 { CODEC_ID_GIF , "gif"},
61 { CODEC_ID_TARGA , "tga"},
62 { CODEC_ID_TIFF , "tiff"},
63 { CODEC_ID_TIFF , "tif"},
64 { CODEC_ID_SGI , "sgi"},
65 { CODEC_ID_PTX , "ptx"},
66 { CODEC_ID_PCX , "pcx"},
67 { CODEC_ID_SUNRAST , "sun"},
68 { CODEC_ID_SUNRAST , "ras"},
69 { CODEC_ID_SUNRAST , "rs"},
70 { CODEC_ID_SUNRAST , "im1"},
71 { CODEC_ID_SUNRAST , "im8"},
72 { CODEC_ID_SUNRAST , "im24"},
73 { CODEC_ID_SUNRAST , "sunras"},
74 { CODEC_ID_JPEG2000 , "jp2"},
75 { CODEC_ID_DPX , "dpx"},
76 { CODEC_ID_PICTOR , "pic"},
77 { CODEC_ID_NONE , NULL}
80 static const int sizes[][2] = {
92 static int infer_size(int *width_ptr, int *height_ptr, int size)
96 for(i=0;i<FF_ARRAY_ELEMS(sizes);i++) {
97 if ((sizes[i][0] * sizes[i][1]) == size) {
98 *width_ptr = sizes[i][0];
99 *height_ptr = sizes[i][1];
105 static enum CodecID av_str2id(const IdStrMap *tags, const char *str)
107 str= strrchr(str, '.');
108 if(!str) return CODEC_ID_NONE;
112 if (!strcasecmp(str, tags->str))
117 return CODEC_ID_NONE;
120 /* return -1 if no image found */
121 static int find_image_range(int *pfirst_index, int *plast_index,
125 int range, last_index, range1, first_index;
127 /* find the first image */
128 for(first_index = 0; first_index < 5; first_index++) {
129 if (av_get_frame_filename(buf, sizeof(buf), path, first_index) < 0){
139 if (first_index == 5)
142 /* find the last image */
143 last_index = first_index;
151 if (av_get_frame_filename(buf, sizeof(buf), path,
152 last_index + range1) < 0)
157 /* just in case... */
158 if (range >= (1 << 30))
161 /* we are sure than image last_index + range exists */
166 *pfirst_index = first_index;
167 *plast_index = last_index;
174 static int image_probe(AVProbeData *p)
176 if (p->filename && av_str2id(img_tags, p->filename)) {
177 if (av_filename_number_test(p->filename))
178 return AVPROBE_SCORE_MAX;
180 return AVPROBE_SCORE_MAX/2;
185 enum CodecID av_guess_image2_codec(const char *filename){
186 return av_str2id(img_tags, filename);
189 static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
191 VideoData *s = s1->priv_data;
192 int first_index, last_index;
195 s1->ctx_flags |= AVFMTCTX_NOHEADER;
197 st = av_new_stream(s1, 0);
199 return AVERROR(ENOMEM);
202 av_strlcpy(s->path, s1->filename, sizeof(s->path));
207 if (s1->iformat->flags & AVFMT_NOFILE)
211 st->need_parsing = AVSTREAM_PARSE_FULL;
214 if (!ap->time_base.num) {
215 av_set_pts_info(st, 60, 1, 25);
217 av_set_pts_info(st, 60, ap->time_base.num, ap->time_base.den);
220 if(ap->width && ap->height){
221 st->codec->width = ap->width;
222 st->codec->height= ap->height;
226 if (find_image_range(&first_index, &last_index, s->path) < 0)
227 return AVERROR(ENOENT);
228 s->img_first = first_index;
229 s->img_last = last_index;
230 s->img_number = first_index;
231 /* compute duration */
233 st->duration = last_index - first_index + 1;
236 if(s1->video_codec_id){
237 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
238 st->codec->codec_id = s1->video_codec_id;
239 }else if(s1->audio_codec_id){
240 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
241 st->codec->codec_id = s1->audio_codec_id;
243 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
244 st->codec->codec_id = av_str2id(img_tags, s->path);
246 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ap->pix_fmt != PIX_FMT_NONE)
247 st->codec->pix_fmt = ap->pix_fmt;
252 static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
254 VideoData *s = s1->priv_data;
257 int size[3]={0}, ret[3]={0};
259 AVCodecContext *codec= s1->streams[0]->codec;
262 /* loop over input */
263 if (s1->loop_input && s->img_number > s->img_last) {
264 s->img_number = s->img_first;
266 if (s->img_number > s->img_last)
268 if (av_get_frame_filename(filename, sizeof(filename),
269 s->path, s->img_number)<0 && s->img_number > 1)
272 if (url_fopen(&f[i], filename, URL_RDONLY) < 0) {
275 av_log(s1, AV_LOG_ERROR, "Could not open file : %s\n",filename);
278 size[i]= url_fsize(f[i]);
280 if(codec->codec_id != CODEC_ID_RAWVIDEO)
282 filename[ strlen(filename) - 1 ]= 'U' + i;
285 if(codec->codec_id == CODEC_ID_RAWVIDEO && !codec->width)
286 infer_size(&codec->width, &codec->height, size[0]);
294 av_new_packet(pkt, size[0] + size[1] + size[2]);
295 pkt->stream_index = 0;
296 pkt->flags |= AV_PKT_FLAG_KEY;
301 ret[i]= get_buffer(f[i], pkt->data + pkt->size, size[i]);
309 if (ret[0] <= 0 || ret[1]<0 || ret[2]<0) {
311 return AVERROR(EIO); /* signal EOF */
319 #if CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER
320 /******************************************************/
323 static int img_write_header(AVFormatContext *s)
325 VideoData *img = s->priv_data;
328 av_strlcpy(img->path, s->filename, sizeof(img->path));
331 if (s->oformat->flags & AVFMT_NOFILE)
339 static int img_write_packet(AVFormatContext *s, AVPacket *pkt)
341 VideoData *img = s->priv_data;
342 ByteIOContext *pb[3];
344 AVCodecContext *codec= s->streams[ pkt->stream_index ]->codec;
348 if (av_get_frame_filename(filename, sizeof(filename),
349 img->path, img->img_number) < 0 && img->img_number>1) {
350 av_log(s, AV_LOG_ERROR, "Could not get frame filename from pattern\n");
354 if (url_fopen(&pb[i], filename, URL_WRONLY) < 0) {
355 av_log(s, AV_LOG_ERROR, "Could not open file : %s\n",filename);
359 if(codec->codec_id != CODEC_ID_RAWVIDEO)
361 filename[ strlen(filename) - 1 ]= 'U' + i;
367 if(codec->codec_id == CODEC_ID_RAWVIDEO){
368 int ysize = codec->width * codec->height;
369 put_buffer(pb[0], pkt->data , ysize);
370 put_buffer(pb[1], pkt->data + ysize, (pkt->size - ysize)/2);
371 put_buffer(pb[2], pkt->data + ysize +(pkt->size - ysize)/2, (pkt->size - ysize)/2);
372 put_flush_packet(pb[1]);
373 put_flush_packet(pb[2]);
377 if(av_str2id(img_tags, s->filename) == CODEC_ID_JPEG2000){
378 AVStream *st = s->streams[0];
379 if(st->codec->extradata_size > 8 &&
380 AV_RL32(st->codec->extradata+4) == MKTAG('j','p','2','h')){
381 if(pkt->size < 8 || AV_RL32(pkt->data+4) != MKTAG('j','p','2','c'))
384 put_tag (pb[0], "jP ");
385 put_be32(pb[0], 0x0D0A870A); // signature
387 put_tag (pb[0], "ftyp");
388 put_tag (pb[0], "jp2 ");
390 put_tag (pb[0], "jp2 ");
391 put_buffer(pb[0], st->codec->extradata, st->codec->extradata_size);
392 }else if(pkt->size < 8 ||
393 (!st->codec->extradata_size &&
394 AV_RL32(pkt->data+4) != MKTAG('j','P',' ',' '))){ // signature
396 av_log(s, AV_LOG_ERROR, "malformated jpeg2000 codestream\n");
400 put_buffer(pb[0], pkt->data, pkt->size);
402 put_flush_packet(pb[0]);
411 #endif /* CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER */
414 #if CONFIG_IMAGE2_DEMUXER
415 AVInputFormat image2_demuxer = {
417 NULL_IF_CONFIG_SMALL("image2 sequence"),
428 #if CONFIG_IMAGE2PIPE_DEMUXER
429 AVInputFormat image2pipe_demuxer = {
431 NULL_IF_CONFIG_SMALL("piped image2 sequence"),
440 #if CONFIG_IMAGE2_MUXER
441 AVOutputFormat image2_muxer = {
443 NULL_IF_CONFIG_SMALL("image2 sequence"),
445 "bmp,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,ppm,sgi,tga,tif,tiff,jp2",
452 .flags= AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE
455 #if CONFIG_IMAGE2PIPE_MUXER
456 AVOutputFormat image2pipe_muxer = {
458 NULL_IF_CONFIG_SMALL("piped image2 sequence"),
466 .flags= AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS