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;
44 AVStream *st = s->streams[0];
47 av_strlcpy(img->path, s->filename, sizeof(img->path));
50 if (s->oformat->flags & AVFMT_NOFILE)
55 str = strrchr(img->path, '.');
56 img->split_planes = str
57 && !av_strcasecmp(str + 1, "y")
59 && st->codec->codec_id == AV_CODEC_ID_RAWVIDEO;
63 static int write_packet(AVFormatContext *s, AVPacket *pkt)
65 VideoMuxData *img = s->priv_data;
68 AVCodecContext *codec= s->streams[ pkt->stream_index ]->codec;
72 if (av_get_frame_filename(filename, sizeof(filename),
73 img->path, img->img_number) < 0 && img->img_number>1 && !img->updatefirst) {
74 av_log(s, AV_LOG_ERROR,
75 "Could not get frame filename number %d from pattern '%s'\n",
76 img->img_number, img->path);
77 return AVERROR(EINVAL);
80 if (avio_open2(&pb[i], filename, AVIO_FLAG_WRITE,
81 &s->interrupt_callback, NULL) < 0) {
82 av_log(s, AV_LOG_ERROR, "Could not open file : %s\n",filename);
86 if(!img->split_planes)
88 filename[ strlen(filename) - 1 ]= 'U' + i;
94 if(img->split_planes){
95 int ysize = codec->width * codec->height;
96 avio_write(pb[0], pkt->data , ysize);
97 avio_write(pb[1], pkt->data + ysize, (pkt->size - ysize)/2);
98 avio_write(pb[2], pkt->data + ysize +(pkt->size - ysize)/2, (pkt->size - ysize)/2);
102 if(ff_guess_image2_codec(s->filename) == AV_CODEC_ID_JPEG2000){
103 AVStream *st = s->streams[0];
104 if(st->codec->extradata_size > 8 &&
105 AV_RL32(st->codec->extradata+4) == MKTAG('j','p','2','h')){
106 if(pkt->size < 8 || AV_RL32(pkt->data+4) != MKTAG('j','p','2','c'))
108 avio_wb32(pb[0], 12);
109 ffio_wfourcc(pb[0], "jP ");
110 avio_wb32(pb[0], 0x0D0A870A); // signature
111 avio_wb32(pb[0], 20);
112 ffio_wfourcc(pb[0], "ftyp");
113 ffio_wfourcc(pb[0], "jp2 ");
115 ffio_wfourcc(pb[0], "jp2 ");
116 avio_write(pb[0], st->codec->extradata, st->codec->extradata_size);
117 }else if(pkt->size >= 8 && AV_RB32(pkt->data) == 0xFF4FFF51){
118 //jpeg2000 codestream
119 }else if(pkt->size < 8 ||
120 (!st->codec->extradata_size &&
121 AV_RL32(pkt->data+4) != MKTAG('j','P',' ',' '))){ // signature
123 av_log(s, AV_LOG_ERROR, "malformed JPEG 2000 codestream %X\n", AV_RB32(pkt->data));
127 avio_write(pb[0], pkt->data, pkt->size);
138 #define OFFSET(x) offsetof(VideoMuxData, x)
139 #define ENC AV_OPT_FLAG_ENCODING_PARAM
140 static const AVOption muxoptions[] = {
141 { "updatefirst", "", OFFSET(updatefirst), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, ENC },
142 { "start_number", "first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, ENC },
146 #if CONFIG_IMAGE2_MUXER
147 static const AVClass img2mux_class = {
148 .class_name = "image2 muxer",
149 .item_name = av_default_item_name,
150 .option = muxoptions,
151 .version = LIBAVUTIL_VERSION_INT,
154 AVOutputFormat ff_image2_muxer = {
156 .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
157 .extensions = "bmp,dpx,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,"
158 "ppm,sgi,tga,tif,tiff,jp2,j2c,xwd,sun,ras,rs,im1,im8,im24,"
160 .priv_data_size = sizeof(VideoMuxData),
161 .video_codec = AV_CODEC_ID_MJPEG,
162 .write_header = write_header,
163 .write_packet = write_packet,
164 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE,
165 .priv_class = &img2mux_class,
168 #if CONFIG_IMAGE2PIPE_MUXER
169 AVOutputFormat ff_image2pipe_muxer = {
170 .name = "image2pipe",
171 .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
172 .priv_data_size = sizeof(VideoMuxData),
173 .video_codec = AV_CODEC_ID_MJPEG,
174 .write_header = write_header,
175 .write_packet = write_packet,
176 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS