3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4 * Copyright (c) 2004 Michael Niedermayer
6 * This file is part of Libav.
8 * Libav 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 * Libav 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 Libav; 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"
27 #include "avio_internal.h"
29 #include "libavutil/opt.h"
32 const AVClass *class; /**< Class for private options. */
38 static int write_header(AVFormatContext *s)
40 VideoMuxData *img = s->priv_data;
42 av_strlcpy(img->path, s->filename, sizeof(img->path));
45 if (s->oformat->flags & AVFMT_NOFILE)
53 static int write_packet(AVFormatContext *s, AVPacket *pkt)
55 VideoMuxData *img = s->priv_data;
58 AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
62 if (av_get_frame_filename(filename, sizeof(filename),
63 img->path, img->img_number) < 0 && img->img_number > 1) {
64 av_log(s, AV_LOG_ERROR,
65 "Could not get frame filename number %d from pattern '%s'\n",
66 img->img_number, img->path);
69 for (i = 0; i < 3; i++) {
70 if (avio_open2(&pb[i], filename, AVIO_FLAG_WRITE,
71 &s->interrupt_callback, NULL) < 0) {
72 av_log(s, AV_LOG_ERROR, "Could not open file : %s\n", filename);
76 if (codec->codec_id != AV_CODEC_ID_RAWVIDEO)
78 filename[strlen(filename) - 1] = 'U' + i;
84 if (codec->codec_id == AV_CODEC_ID_RAWVIDEO) {
85 int ysize = codec->width * codec->height;
86 avio_write(pb[0], pkt->data, ysize);
87 avio_write(pb[1], pkt->data + ysize, (pkt->size - ysize) / 2);
88 avio_write(pb[2], pkt->data + ysize + (pkt->size - ysize) / 2, (pkt->size - ysize) / 2);
92 if (ff_guess_image2_codec(s->filename) == AV_CODEC_ID_JPEG2000) {
93 AVStream *st = s->streams[0];
94 if (st->codec->extradata_size > 8 &&
95 AV_RL32(st->codec->extradata + 4) == MKTAG('j', 'p', '2', 'h')) {
97 AV_RL32(pkt->data + 4) != MKTAG('j', 'p', '2', 'c'))
100 ffio_wfourcc(pb[0], "jP ");
101 avio_wb32(pb[0], 0x0D0A870A); // signature
102 avio_wb32(pb[0], 20);
103 ffio_wfourcc(pb[0], "ftyp");
104 ffio_wfourcc(pb[0], "jp2 ");
106 ffio_wfourcc(pb[0], "jp2 ");
107 avio_write(pb[0], st->codec->extradata, st->codec->extradata_size);
108 } else if (pkt->size < 8 ||
109 (!st->codec->extradata_size &&
110 AV_RL32(pkt->data + 4) != MKTAG('j', 'P', ' ', ' '))) { // signature
112 av_log(s, AV_LOG_ERROR, "malformed JPEG 2000 codestream\n");
116 avio_write(pb[0], pkt->data, pkt->size);
127 #define OFFSET(x) offsetof(VideoMuxData, x)
128 #define ENC AV_OPT_FLAG_ENCODING_PARAM
129 static const AVOption muxoptions[] = {
130 { "start_number", "first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, INT_MAX, ENC },
134 #if CONFIG_IMAGE2_MUXER
135 static const AVClass img2mux_class = {
136 .class_name = "image2 muxer",
137 .item_name = av_default_item_name,
138 .option = muxoptions,
139 .version = LIBAVUTIL_VERSION_INT,
142 AVOutputFormat ff_image2_muxer = {
144 .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
145 .extensions = "bmp,dpx,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,"
146 "ppm,sgi,tga,tif,tiff,jp2,xwd,sun,ras,rs,im1,im8,im24,"
148 .priv_data_size = sizeof(VideoMuxData),
149 .video_codec = AV_CODEC_ID_MJPEG,
150 .write_header = write_header,
151 .write_packet = write_packet,
152 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE,
153 .priv_class = &img2mux_class,
156 #if CONFIG_IMAGE2PIPE_MUXER
157 AVOutputFormat ff_image2pipe_muxer = {
158 .name = "image2pipe",
159 .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
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