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"
29 #include "avio_internal.h"
31 #include "libavutil/opt.h"
34 const AVClass *class; /**< Class for private options. */
37 int split_planes; /**< use independent file for each Y, U, V plane */
42 static int write_header(AVFormatContext *s)
44 VideoMuxData *img = s->priv_data;
45 AVStream *st = s->streams[0];
46 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(st->codec->pix_fmt);
49 av_strlcpy(img->path, s->filename, sizeof(img->path));
52 if (s->oformat->flags & AVFMT_NOFILE)
57 str = strrchr(img->path, '.');
58 img->split_planes = str
59 && !av_strcasecmp(str + 1, "y")
61 && st->codec->codec_id == AV_CODEC_ID_RAWVIDEO
63 &&(desc->flags & PIX_FMT_PLANAR)
64 && desc->nb_components >= 3;
68 static int write_packet(AVFormatContext *s, AVPacket *pkt)
70 VideoMuxData *img = s->priv_data;
73 AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
74 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(codec->pix_fmt);
78 if (av_get_frame_filename(filename, sizeof(filename),
79 img->path, img->img_number) < 0 && img->img_number > 1 && !img->updatefirst) {
80 av_log(s, AV_LOG_ERROR,
81 "Could not get frame filename number %d from pattern '%s'\n",
82 img->img_number, img->path);
83 return AVERROR(EINVAL);
85 for (i = 0; i < 4; i++) {
86 if (avio_open2(&pb[i], filename, AVIO_FLAG_WRITE,
87 &s->interrupt_callback, NULL) < 0) {
88 av_log(s, AV_LOG_ERROR, "Could not open file : %s\n", filename);
92 if (!img->split_planes || i+1 >= desc->nb_components)
94 filename[strlen(filename) - 1] = ((int[]){'U','V','A','x'})[i];
100 if (img->split_planes) {
101 int ysize = codec->width * codec->height;
102 int usize = ((-codec->width)>>desc->log2_chroma_w) * ((-codec->height)>>desc->log2_chroma_h);
103 if (desc->comp[0].depth_minus1 >= 8) {
107 avio_write(pb[0], pkt->data , ysize);
108 avio_write(pb[1], pkt->data + ysize , usize);
109 avio_write(pb[2], pkt->data + ysize + usize, usize);
112 if (desc->nb_components > 3) {
113 avio_write(pb[3], pkt->data + ysize + 2*usize, ysize);
117 avio_write(pb[0], pkt->data, pkt->size);
128 #define OFFSET(x) offsetof(VideoMuxData, x)
129 #define ENC AV_OPT_FLAG_ENCODING_PARAM
130 static const AVOption muxoptions[] = {
131 { "updatefirst", "", OFFSET(updatefirst), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC },
132 { "start_number", "first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, INT_MAX, ENC },
136 #if CONFIG_IMAGE2_MUXER
137 static const AVClass img2mux_class = {
138 .class_name = "image2 muxer",
139 .item_name = av_default_item_name,
140 .option = muxoptions,
141 .version = LIBAVUTIL_VERSION_INT,
144 AVOutputFormat ff_image2_muxer = {
146 .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
147 .extensions = "bmp,dpx,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,"
148 "ppm,sgi,tga,tif,tiff,jp2,j2c,xwd,sun,ras,rs,im1,im8,im24,"
150 .priv_data_size = sizeof(VideoMuxData),
151 .video_codec = AV_CODEC_ID_MJPEG,
152 .write_header = write_header,
153 .write_packet = write_packet,
154 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE,
155 .priv_class = &img2mux_class,
158 #if CONFIG_IMAGE2PIPE_MUXER
159 AVOutputFormat ff_image2pipe_muxer = {
160 .name = "image2pipe",
161 .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
162 .priv_data_size = sizeof(VideoMuxData),
163 .video_codec = AV_CODEC_ID_MJPEG,
164 .write_header = write_header,
165 .write_packet = write_packet,
166 .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS