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"
28 #include "avio_internal.h"
30 #include "libavutil/opt.h"
33 const AVClass *class; /**< Class for private options. */
36 int split_planes; /**< use independent file for each Y, U, V plane */
41 static int write_header(AVFormatContext *s)
43 VideoMuxData *img = s->priv_data;
46 av_strlcpy(img->path, s->filename, sizeof(img->path));
49 if (s->oformat->flags & AVFMT_NOFILE)
54 str = strrchr(img->path, '.');
55 img->split_planes = str && !av_strcasecmp(str + 1, "y");
59 static int write_packet(AVFormatContext *s, AVPacket *pkt)
61 VideoMuxData *img = s->priv_data;
64 AVCodecContext *codec= s->streams[ pkt->stream_index ]->codec;
68 if (av_get_frame_filename(filename, sizeof(filename),
69 img->path, img->img_number) < 0 && img->img_number>1 && !img->updatefirst) {
70 av_log(s, AV_LOG_ERROR,
71 "Could not get frame filename number %d from pattern '%s'\n",
72 img->img_number, img->path);
73 return AVERROR(EINVAL);
76 if (avio_open2(&pb[i], filename, AVIO_FLAG_WRITE,
77 &s->interrupt_callback, NULL) < 0) {
78 av_log(s, AV_LOG_ERROR, "Could not open file : %s\n",filename);
82 if(!img->split_planes)
84 filename[ strlen(filename) - 1 ]= 'U' + i;
90 if(img->split_planes){
91 int ysize = codec->width * codec->height;
92 avio_write(pb[0], pkt->data , ysize);
93 avio_write(pb[1], pkt->data + ysize, (pkt->size - ysize)/2);
94 avio_write(pb[2], pkt->data + ysize +(pkt->size - ysize)/2, (pkt->size - ysize)/2);
98 if(ff_guess_image2_codec(s->filename) == AV_CODEC_ID_JPEG2000){
99 AVStream *st = s->streams[0];
100 if(st->codec->extradata_size > 8 &&
101 AV_RL32(st->codec->extradata+4) == MKTAG('j','p','2','h')){
102 if(pkt->size < 8 || AV_RL32(pkt->data+4) != MKTAG('j','p','2','c'))
104 avio_wb32(pb[0], 12);
105 ffio_wfourcc(pb[0], "jP ");
106 avio_wb32(pb[0], 0x0D0A870A); // signature
107 avio_wb32(pb[0], 20);
108 ffio_wfourcc(pb[0], "ftyp");
109 ffio_wfourcc(pb[0], "jp2 ");
111 ffio_wfourcc(pb[0], "jp2 ");
112 avio_write(pb[0], st->codec->extradata, st->codec->extradata_size);
113 }else if(pkt->size >= 8 && AV_RB32(pkt->data) == 0xFF4FFF51){
114 //jpeg2000 codestream
115 }else if(pkt->size < 8 ||
116 (!st->codec->extradata_size &&
117 AV_RL32(pkt->data+4) != MKTAG('j','P',' ',' '))){ // signature
119 av_log(s, AV_LOG_ERROR, "malformed JPEG 2000 codestream %X\n", AV_RB32(pkt->data));
123 avio_write(pb[0], pkt->data, pkt->size);
134 #define OFFSET(x) offsetof(VideoMuxData, x)
135 #define ENC AV_OPT_FLAG_ENCODING_PARAM
136 static const AVOption muxoptions[] = {
137 { "updatefirst", "", OFFSET(updatefirst), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, ENC },
138 { "start_number", "first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, ENC },
142 #if CONFIG_IMAGE2_MUXER
143 static const AVClass img2mux_class = {
144 .class_name = "image2 muxer",
145 .item_name = av_default_item_name,
146 .option = muxoptions,
147 .version = LIBAVUTIL_VERSION_INT,
150 AVOutputFormat ff_image2_muxer = {
152 .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
153 .extensions = "bmp,dpx,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,"
154 "ppm,sgi,tga,tif,tiff,jp2,j2c,xwd,sun,ras,rs,im1,im8,im24,"
156 .priv_data_size = sizeof(VideoMuxData),
157 .video_codec = AV_CODEC_ID_MJPEG,
158 .write_header = write_header,
159 .write_packet = write_packet,
160 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE,
161 .priv_class = &img2mux_class,
164 #if CONFIG_IMAGE2PIPE_MUXER
165 AVOutputFormat ff_image2pipe_muxer = {
166 .name = "image2pipe",
167 .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
168 .priv_data_size = sizeof(VideoMuxData),
169 .video_codec = AV_CODEC_ID_MJPEG,
170 .write_header = write_header,
171 .write_packet = write_packet,
172 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS