194 lines
6.9 KiB
C
194 lines
6.9 KiB
C
/*
|
|
* 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 "libavutil/pixdesc.h"
|
|
#include "avformat.h"
|
|
#include "avio_internal.h"
|
|
#include "internal.h"
|
|
#include "libavutil/opt.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;
|
|
AVStream *st = s->streams[0];
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(st->codec->pix_fmt);
|
|
const char *str;
|
|
|
|
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")
|
|
&& s->nb_streams == 1
|
|
&& st->codec->codec_id == AV_CODEC_ID_RAWVIDEO
|
|
&& desc
|
|
&&(desc->flags & PIX_FMT_PLANAR)
|
|
&& desc->nb_components >= 3;
|
|
return 0;
|
|
}
|
|
|
|
static int write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
VideoMuxData *img = s->priv_data;
|
|
AVIOContext *pb[4];
|
|
char filename[1024];
|
|
AVCodecContext *codec= s->streams[ pkt->stream_index ]->codec;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(codec->pix_fmt);
|
|
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<4; 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 || i+1 >= desc->nb_components)
|
|
break;
|
|
filename[ strlen(filename) - 1 ]= ((int[]){'U','V','A','x'})[i];
|
|
}
|
|
} else {
|
|
pb[0] = s->pb;
|
|
}
|
|
|
|
if(img->split_planes){
|
|
int ysize = codec->width * codec->height;
|
|
int usize = ((-codec->width)>>desc->log2_chroma_w) * ((-codec->height)>>desc->log2_chroma_h);
|
|
if (desc->comp[0].depth_minus1 >= 8) {
|
|
ysize *= 2;
|
|
usize *= 2;
|
|
}
|
|
avio_write(pb[0], pkt->data , ysize);
|
|
avio_write(pb[1], pkt->data + ysize , usize);
|
|
avio_write(pb[2], pkt->data + ysize + usize, usize);
|
|
avio_close(pb[1]);
|
|
avio_close(pb[2]);
|
|
if (desc->nb_components > 3) {
|
|
avio_write(pb[3], pkt->data + ysize + 2*usize, ysize);
|
|
avio_close(pb[3]);
|
|
}
|
|
}else{
|
|
if(ff_guess_image2_codec(s->filename) == AV_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, {.i64 = 0}, 0, 1, ENC },
|
|
{ "start_number", "first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, 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,xface",
|
|
.priv_data_size = sizeof(VideoMuxData),
|
|
.video_codec = AV_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 = AV_CODEC_ID_MJPEG,
|
|
.write_header = write_header,
|
|
.write_packet = write_packet,
|
|
.flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS
|
|
};
|
|
#endif
|