| /* |
| * Image format |
| * Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
| * Copyright (c) 2004 Michael Niedermayer |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/intreadwrite.h" |
| #include "libavutil/avstring.h" |
| #include "libavutil/log.h" |
| #include "libavutil/opt.h" |
| #include "avformat.h" |
| #include "avio_internal.h" |
| #include "internal.h" |
| |
| typedef struct { |
| const AVClass *class; /**< Class for private options. */ |
| int img_number; |
| int is_pipe; |
| int split_planes; /**< use independent file for each Y, U, V plane */ |
| char path[1024]; |
| int updatefirst; |
| } VideoMuxData; |
| |
| static int write_header(AVFormatContext *s) |
| { |
| VideoMuxData *img = s->priv_data; |
| const char *str; |
| |
| img->img_number = 1; |
| av_strlcpy(img->path, s->filename, sizeof(img->path)); |
| |
| /* find format */ |
| if (s->oformat->flags & AVFMT_NOFILE) |
| img->is_pipe = 0; |
| else |
| img->is_pipe = 1; |
| |
| str = strrchr(img->path, '.'); |
| img->split_planes = str && !av_strcasecmp(str + 1, "y"); |
| return 0; |
| } |
| |
| static int write_packet(AVFormatContext *s, AVPacket *pkt) |
| { |
| VideoMuxData *img = s->priv_data; |
| AVIOContext *pb[3]; |
| char filename[1024]; |
| AVCodecContext *codec= s->streams[ pkt->stream_index ]->codec; |
| int i; |
| |
| if (!img->is_pipe) { |
| if (av_get_frame_filename(filename, sizeof(filename), |
| img->path, img->img_number) < 0 && img->img_number>1 && !img->updatefirst) { |
| av_log(s, AV_LOG_ERROR, |
| "Could not get frame filename number %d from pattern '%s'\n", |
| img->img_number, img->path); |
| return AVERROR(EINVAL); |
| } |
| for(i=0; i<3; i++){ |
| if (avio_open2(&pb[i], filename, AVIO_FLAG_WRITE, |
| &s->interrupt_callback, NULL) < 0) { |
| av_log(s, AV_LOG_ERROR, "Could not open file : %s\n",filename); |
| return AVERROR(EIO); |
| } |
| |
| if(!img->split_planes) |
| break; |
| filename[ strlen(filename) - 1 ]= 'U' + i; |
| } |
| } else { |
| pb[0] = s->pb; |
| } |
| |
| if(img->split_planes){ |
| int ysize = codec->width * codec->height; |
| avio_write(pb[0], pkt->data , ysize); |
| avio_write(pb[1], pkt->data + ysize, (pkt->size - ysize)/2); |
| avio_write(pb[2], pkt->data + ysize +(pkt->size - ysize)/2, (pkt->size - ysize)/2); |
| avio_flush(pb[1]); |
| avio_flush(pb[2]); |
| avio_close(pb[1]); |
| avio_close(pb[2]); |
| }else{ |
| if(ff_guess_image2_codec(s->filename) == CODEC_ID_JPEG2000){ |
| AVStream *st = s->streams[0]; |
| if(st->codec->extradata_size > 8 && |
| AV_RL32(st->codec->extradata+4) == MKTAG('j','p','2','h')){ |
| if(pkt->size < 8 || AV_RL32(pkt->data+4) != MKTAG('j','p','2','c')) |
| goto error; |
| avio_wb32(pb[0], 12); |
| ffio_wfourcc(pb[0], "jP "); |
| avio_wb32(pb[0], 0x0D0A870A); // signature |
| avio_wb32(pb[0], 20); |
| ffio_wfourcc(pb[0], "ftyp"); |
| ffio_wfourcc(pb[0], "jp2 "); |
| avio_wb32(pb[0], 0); |
| ffio_wfourcc(pb[0], "jp2 "); |
| avio_write(pb[0], st->codec->extradata, st->codec->extradata_size); |
| }else if(pkt->size >= 8 && AV_RB32(pkt->data) == 0xFF4FFF51){ |
| //jpeg2000 codestream |
| }else if(pkt->size < 8 || |
| (!st->codec->extradata_size && |
| AV_RL32(pkt->data+4) != MKTAG('j','P',' ',' '))){ // signature |
| error: |
| av_log(s, AV_LOG_ERROR, "malformed JPEG 2000 codestream %X\n", AV_RB32(pkt->data)); |
| return -1; |
| } |
| } |
| avio_write(pb[0], pkt->data, pkt->size); |
| } |
| avio_flush(pb[0]); |
| if (!img->is_pipe) { |
| avio_close(pb[0]); |
| } |
| |
| img->img_number++; |
| return 0; |
| } |
| |
| #define OFFSET(x) offsetof(VideoMuxData, x) |
| #define ENC AV_OPT_FLAG_ENCODING_PARAM |
| static const AVOption muxoptions[] = { |
| { "updatefirst", "", OFFSET(updatefirst), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 1, ENC }, |
| { NULL }, |
| }; |
| |
| |
| #if CONFIG_IMAGE2_MUXER |
| static const AVClass img2mux_class = { |
| .class_name = "image2 muxer", |
| .item_name = av_default_item_name, |
| .option = muxoptions, |
| .version = LIBAVUTIL_VERSION_INT, |
| }; |
| AVOutputFormat ff_image2_muxer = { |
| .name = "image2", |
| .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"), |
| .extensions = "bmp,dpx,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png," |
| "ppm,sgi,tga,tif,tiff,jp2,j2c,xwd,sun,ras,rs,im1,im8,im24," |
| "sunras,xbm", |
| .priv_data_size = sizeof(VideoMuxData), |
| .video_codec = CODEC_ID_MJPEG, |
| .write_header = write_header, |
| .write_packet = write_packet, |
| .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE, |
| .priv_class = &img2mux_class, |
| }; |
| #endif |
| #if CONFIG_IMAGE2PIPE_MUXER |
| AVOutputFormat ff_image2pipe_muxer = { |
| .name = "image2pipe", |
| .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"), |
| .priv_data_size = sizeof(VideoMuxData), |
| .video_codec = CODEC_ID_MJPEG, |
| .write_header = write_header, |
| .write_packet = write_packet, |
| .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS |
| }; |
| #endif |