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"
25 #include "libavutil/log.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/pixdesc.h"
28 #include "libavutil/parseutils.h"
30 #include "avio_internal.h"
34 const AVClass *class; /**< Class for private options. */
40 int split_planes; /**< use independent file for each Y, U, V plane */
42 char *pixel_format; /**< Set by a private option. */
43 char *video_size; /**< Set by a private option. */
44 char *framerate; /**< Set by a private option. */
54 static const IdStrMap img_tags[] = {
55 { CODEC_ID_MJPEG , "jpeg"},
56 { CODEC_ID_MJPEG , "jpg"},
57 { CODEC_ID_LJPEG , "ljpg"},
58 { CODEC_ID_JPEGLS , "jls"},
59 { CODEC_ID_PNG , "png"},
60 { CODEC_ID_PNG , "mng"},
61 { CODEC_ID_PPM , "ppm"},
62 { CODEC_ID_PPM , "pnm"},
63 { CODEC_ID_PGM , "pgm"},
64 { CODEC_ID_PGMYUV , "pgmyuv"},
65 { CODEC_ID_PBM , "pbm"},
66 { CODEC_ID_PAM , "pam"},
67 { CODEC_ID_MPEG1VIDEO, "mpg1-img"},
68 { CODEC_ID_MPEG2VIDEO, "mpg2-img"},
69 { CODEC_ID_MPEG4 , "mpg4-img"},
70 { CODEC_ID_FFV1 , "ffv1-img"},
71 { CODEC_ID_RAWVIDEO , "y"},
72 { CODEC_ID_RAWVIDEO , "raw"},
73 { CODEC_ID_BMP , "bmp"},
74 { CODEC_ID_GIF , "gif"},
75 { CODEC_ID_TARGA , "tga"},
76 { CODEC_ID_TIFF , "tiff"},
77 { CODEC_ID_TIFF , "tif"},
78 { CODEC_ID_SGI , "sgi"},
79 { CODEC_ID_PTX , "ptx"},
80 { CODEC_ID_PCX , "pcx"},
81 { CODEC_ID_SUNRAST , "sun"},
82 { CODEC_ID_SUNRAST , "ras"},
83 { CODEC_ID_SUNRAST , "rs"},
84 { CODEC_ID_SUNRAST , "im1"},
85 { CODEC_ID_SUNRAST , "im8"},
86 { CODEC_ID_SUNRAST , "im24"},
87 { CODEC_ID_SUNRAST , "sunras"},
88 { CODEC_ID_JPEG2000 , "j2c"},
89 { CODEC_ID_JPEG2000 , "j2k"},
90 { CODEC_ID_JPEG2000 , "jp2"},
91 { CODEC_ID_JPEG2000 , "jpc"},
92 { CODEC_ID_DPX , "dpx"},
93 { CODEC_ID_PICTOR , "pic"},
94 { CODEC_ID_XWD , "xwd"},
95 { CODEC_ID_NONE , NULL}
98 static const int sizes[][2] = {
110 static int infer_size(int *width_ptr, int *height_ptr, int size)
114 for(i=0;i<FF_ARRAY_ELEMS(sizes);i++) {
115 if ((sizes[i][0] * sizes[i][1]) == size) {
116 *width_ptr = sizes[i][0];
117 *height_ptr = sizes[i][1];
123 static enum CodecID av_str2id(const IdStrMap *tags, const char *str)
125 str= strrchr(str, '.');
126 if(!str) return CODEC_ID_NONE;
130 if (!av_strcasecmp(str, tags->str))
135 return CODEC_ID_NONE;
138 /* return -1 if no image found */
139 static int find_image_range(int *pfirst_index, int *plast_index,
143 int range, last_index, range1, first_index;
145 /* find the first image */
146 for(first_index = 0; first_index < 5; first_index++) {
147 if (av_get_frame_filename(buf, sizeof(buf), path, first_index) < 0){
150 if (avio_check(buf, AVIO_FLAG_READ) > 0)
154 if (avio_check(buf, AVIO_FLAG_READ) > 0)
157 if (first_index == 5)
160 /* find the last image */
161 last_index = first_index;
169 if (av_get_frame_filename(buf, sizeof(buf), path,
170 last_index + range1) < 0)
172 if (avio_check(buf, AVIO_FLAG_READ) <= 0)
175 /* just in case... */
176 if (range >= (1 << 30))
179 /* we are sure than image last_index + range exists */
184 *pfirst_index = first_index;
185 *plast_index = last_index;
192 static int read_probe(AVProbeData *p)
194 if (p->filename && av_str2id(img_tags, p->filename)) {
195 if (av_filename_number_test(p->filename))
196 return AVPROBE_SCORE_MAX;
198 return AVPROBE_SCORE_MAX/2;
203 enum CodecID ff_guess_image2_codec(const char *filename)
205 return av_str2id(img_tags, filename);
208 static int read_header(AVFormatContext *s1)
210 VideoData *s = s1->priv_data;
211 int first_index, last_index, ret = 0;
212 int width = 0, height = 0;
214 enum PixelFormat pix_fmt = PIX_FMT_NONE;
215 AVRational framerate;
217 s1->ctx_flags |= AVFMTCTX_NOHEADER;
219 st = avformat_new_stream(s1, NULL);
221 return AVERROR(ENOMEM);
224 if (s->pixel_format && (pix_fmt = av_get_pix_fmt(s->pixel_format)) == PIX_FMT_NONE) {
225 av_log(s1, AV_LOG_ERROR, "No such pixel format: %s.\n", s->pixel_format);
226 return AVERROR(EINVAL);
228 if (s->video_size && (ret = av_parse_video_size(&width, &height, s->video_size)) < 0) {
229 av_log(s, AV_LOG_ERROR, "Could not parse video size: %s.\n", s->video_size);
232 if ((ret = av_parse_video_rate(&framerate, s->framerate)) < 0) {
233 av_log(s, AV_LOG_ERROR, "Could not parse framerate: %s.\n", s->framerate);
237 av_strlcpy(s->path, s1->filename, sizeof(s->path));
242 if (s1->iformat->flags & AVFMT_NOFILE)
246 st->need_parsing = AVSTREAM_PARSE_FULL;
249 avpriv_set_pts_info(st, 60, framerate.den, framerate.num);
251 if (width && height) {
252 st->codec->width = width;
253 st->codec->height = height;
257 if (find_image_range(&first_index, &last_index, s->path) < 0)
258 return AVERROR(ENOENT);
259 s->img_first = first_index;
260 s->img_last = last_index;
261 s->img_number = first_index;
262 /* compute duration */
264 st->duration = last_index - first_index + 1;
267 if(s1->video_codec_id){
268 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
269 st->codec->codec_id = s1->video_codec_id;
270 }else if(s1->audio_codec_id){
271 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
272 st->codec->codec_id = s1->audio_codec_id;
274 const char *str= strrchr(s->path, '.');
275 s->split_planes = str && !av_strcasecmp(str + 1, "y");
276 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
277 st->codec->codec_id = av_str2id(img_tags, s->path);
278 if (st->codec->codec_id == CODEC_ID_LJPEG)
279 st->codec->codec_id = CODEC_ID_MJPEG;
281 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO && pix_fmt != PIX_FMT_NONE)
282 st->codec->pix_fmt = pix_fmt;
287 static int read_packet(AVFormatContext *s1, AVPacket *pkt)
289 VideoData *s = s1->priv_data;
292 int size[3]={0}, ret[3]={0};
294 AVCodecContext *codec= s1->streams[0]->codec;
297 /* loop over input */
298 if (s->loop && s->img_number > s->img_last) {
299 s->img_number = s->img_first;
301 if (s->img_number > s->img_last)
303 if (av_get_frame_filename(filename, sizeof(filename),
304 s->path, s->img_number)<0 && s->img_number > 1)
307 if (avio_open2(&f[i], filename, AVIO_FLAG_READ,
308 &s1->interrupt_callback, NULL) < 0) {
311 av_log(s1, AV_LOG_ERROR, "Could not open file : %s\n",filename);
314 size[i]= avio_size(f[i]);
318 filename[ strlen(filename) - 1 ]= 'U' + i;
321 if(codec->codec_id == CODEC_ID_RAWVIDEO && !codec->width)
322 infer_size(&codec->width, &codec->height, size[0]);
330 av_new_packet(pkt, size[0] + size[1] + size[2]);
331 pkt->stream_index = 0;
332 pkt->flags |= AV_PKT_FLAG_KEY;
337 ret[i]= avio_read(f[i], pkt->data + pkt->size, size[i]);
345 if (ret[0] <= 0 || ret[1]<0 || ret[2]<0) {
347 return AVERROR(EIO); /* signal EOF */
355 #if CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER
356 /******************************************************/
359 static int write_header(AVFormatContext *s)
361 VideoData *img = s->priv_data;
365 av_strlcpy(img->path, s->filename, sizeof(img->path));
368 if (s->oformat->flags & AVFMT_NOFILE)
373 str = strrchr(img->path, '.');
374 img->split_planes = str && !av_strcasecmp(str + 1, "y");
378 static int write_packet(AVFormatContext *s, AVPacket *pkt)
380 VideoData *img = s->priv_data;
383 AVCodecContext *codec= s->streams[ pkt->stream_index ]->codec;
387 if (av_get_frame_filename(filename, sizeof(filename),
388 img->path, img->img_number) < 0 && img->img_number>1 && !img->updatefirst) {
389 av_log(s, AV_LOG_ERROR,
390 "Could not get frame filename number %d from pattern '%s'\n",
391 img->img_number, img->path);
392 return AVERROR(EINVAL);
395 if (avio_open2(&pb[i], filename, AVIO_FLAG_WRITE,
396 &s->interrupt_callback, NULL) < 0) {
397 av_log(s, AV_LOG_ERROR, "Could not open file : %s\n",filename);
401 if(!img->split_planes)
403 filename[ strlen(filename) - 1 ]= 'U' + i;
409 if(img->split_planes){
410 int ysize = codec->width * codec->height;
411 avio_write(pb[0], pkt->data , ysize);
412 avio_write(pb[1], pkt->data + ysize, (pkt->size - ysize)/2);
413 avio_write(pb[2], pkt->data + ysize +(pkt->size - ysize)/2, (pkt->size - ysize)/2);
419 if(av_str2id(img_tags, s->filename) == CODEC_ID_JPEG2000){
420 AVStream *st = s->streams[0];
421 if(st->codec->extradata_size > 8 &&
422 AV_RL32(st->codec->extradata+4) == MKTAG('j','p','2','h')){
423 if(pkt->size < 8 || AV_RL32(pkt->data+4) != MKTAG('j','p','2','c'))
425 avio_wb32(pb[0], 12);
426 ffio_wfourcc(pb[0], "jP ");
427 avio_wb32(pb[0], 0x0D0A870A); // signature
428 avio_wb32(pb[0], 20);
429 ffio_wfourcc(pb[0], "ftyp");
430 ffio_wfourcc(pb[0], "jp2 ");
432 ffio_wfourcc(pb[0], "jp2 ");
433 avio_write(pb[0], st->codec->extradata, st->codec->extradata_size);
434 }else if(pkt->size >= 8 && AV_RB32(pkt->data) == 0xFF4FFF51){
435 //jpeg2000 codestream
436 }else if(pkt->size < 8 ||
437 (!st->codec->extradata_size &&
438 AV_RL32(pkt->data+4) != MKTAG('j','P',' ',' '))){ // signature
440 av_log(s, AV_LOG_ERROR, "malformed JPEG 2000 codestream %X\n", AV_RB32(pkt->data));
444 avio_write(pb[0], pkt->data, pkt->size);
455 #endif /* CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER */
457 #define OFFSET(x) offsetof(VideoData, x)
458 #define DEC AV_OPT_FLAG_DECODING_PARAM
459 #define ENC AV_OPT_FLAG_ENCODING_PARAM
460 static const AVOption options[] = {
461 { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
462 { "video_size", "", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
463 { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC },
464 { "loop", "", OFFSET(loop), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 1, DEC },
468 static const AVOption muxoptions[] = {
469 { "updatefirst", "", OFFSET(updatefirst), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 1, ENC },
474 #if CONFIG_IMAGE2_DEMUXER
475 static const AVClass img2_class = {
476 .class_name = "image2 demuxer",
477 .item_name = av_default_item_name,
479 .version = LIBAVUTIL_VERSION_INT,
481 AVInputFormat ff_image2_demuxer = {
483 .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
484 .priv_data_size = sizeof(VideoData),
485 .read_probe = read_probe,
486 .read_header = read_header,
487 .read_packet = read_packet,
488 .flags = AVFMT_NOFILE,
489 .priv_class = &img2_class,
492 #if CONFIG_IMAGE2PIPE_DEMUXER
493 static const AVClass img2pipe_class = {
494 .class_name = "image2pipe demuxer",
495 .item_name = av_default_item_name,
497 .version = LIBAVUTIL_VERSION_INT,
499 AVInputFormat ff_image2pipe_demuxer = {
500 .name = "image2pipe",
501 .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
502 .priv_data_size = sizeof(VideoData),
503 .read_header = read_header,
504 .read_packet = read_packet,
505 .priv_class = &img2pipe_class,
510 #if CONFIG_IMAGE2_MUXER
511 static const AVClass img2mux_class = {
512 .class_name = "image2 muxer",
513 .item_name = av_default_item_name,
514 .option = muxoptions,
515 .version = LIBAVUTIL_VERSION_INT,
517 AVOutputFormat ff_image2_muxer = {
519 .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
520 .extensions = "bmp,dpx,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,"
521 "ppm,sgi,tga,tif,tiff,jp2,j2c,xwd",
522 .priv_data_size = sizeof(VideoData),
523 .video_codec = CODEC_ID_MJPEG,
524 .write_header = write_header,
525 .write_packet = write_packet,
526 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE,
527 .priv_class = &img2mux_class,
530 #if CONFIG_IMAGE2PIPE_MUXER
531 AVOutputFormat ff_image2pipe_muxer = {
532 .name = "image2pipe",
533 .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
534 .priv_data_size = sizeof(VideoData),
535 .video_codec = CODEC_ID_MJPEG,
536 .write_header = write_header,
537 .write_packet = write_packet,
538 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS