mirror of https://git.ffmpeg.org/ffmpeg.git
287 lines
10 KiB
C
287 lines
10 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/avassert.h"
|
|
#include "libavutil/avstring.h"
|
|
#include "libavutil/dict.h"
|
|
#include "libavutil/log.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "libavutil/time_internal.h"
|
|
#include "avformat.h"
|
|
#include "avio_internal.h"
|
|
#include "internal.h"
|
|
#include "img2.h"
|
|
|
|
typedef struct VideoMuxData {
|
|
const AVClass *class; /**< Class for private options. */
|
|
int img_number;
|
|
int split_planes; /**< use independent file for each Y, U, V plane */
|
|
char path[1024];
|
|
char tmp[4][1024];
|
|
char target[4][1024];
|
|
int update;
|
|
int use_strftime;
|
|
int frame_pts;
|
|
const char *muxer;
|
|
int use_rename;
|
|
AVDictionary *protocol_opts;
|
|
} 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->codecpar->format);
|
|
|
|
av_strlcpy(img->path, s->url, sizeof(img->path));
|
|
|
|
if (st->codecpar->codec_id == AV_CODEC_ID_GIF) {
|
|
img->muxer = "gif";
|
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_FITS) {
|
|
img->muxer = "fits";
|
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_RAWVIDEO) {
|
|
const char *str = strrchr(img->path, '.');
|
|
img->split_planes = str
|
|
&& !av_strcasecmp(str + 1, "y")
|
|
&& s->nb_streams == 1
|
|
&& desc
|
|
&&(desc->flags & AV_PIX_FMT_FLAG_PLANAR)
|
|
&& desc->nb_components >= 3;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int write_muxed_file(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
|
|
{
|
|
VideoMuxData *img = s->priv_data;
|
|
AVCodecParameters *par = s->streams[pkt->stream_index]->codecpar;
|
|
AVStream *st;
|
|
AVPacket pkt2;
|
|
AVFormatContext *fmt = NULL;
|
|
int ret;
|
|
|
|
/* URL is not used directly as we are overriding the IO context later. */
|
|
ret = avformat_alloc_output_context2(&fmt, NULL, img->muxer, s->url);
|
|
if (ret < 0)
|
|
return ret;
|
|
st = avformat_new_stream(fmt, NULL);
|
|
if (!st) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto out;
|
|
}
|
|
st->id = pkt->stream_index;
|
|
|
|
fmt->pb = pb;
|
|
|
|
ret = av_packet_ref(&pkt2, pkt);
|
|
if (ret < 0)
|
|
goto out;
|
|
pkt2.stream_index = 0;
|
|
|
|
if ((ret = avcodec_parameters_copy(st->codecpar, par)) < 0 ||
|
|
(ret = avformat_write_header(fmt, NULL)) < 0 ||
|
|
(ret = av_interleaved_write_frame(fmt, &pkt2)) < 0 ||
|
|
(ret = av_write_trailer(fmt))) {}
|
|
|
|
av_packet_unref(&pkt2);
|
|
out:
|
|
avformat_free_context(fmt);
|
|
return ret;
|
|
}
|
|
|
|
static int write_packet_pipe(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
VideoMuxData *img = s->priv_data;
|
|
if (img->muxer) {
|
|
int ret = write_muxed_file(s, s->pb, pkt);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
avio_write(s->pb, pkt->data, pkt->size);
|
|
}
|
|
img->img_number++;
|
|
return 0;
|
|
}
|
|
|
|
static int write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
VideoMuxData *img = s->priv_data;
|
|
AVIOContext *pb[4] = {0};
|
|
char filename[1024];
|
|
AVCodecParameters *par = s->streams[pkt->stream_index]->codecpar;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(par->format);
|
|
int ret, i;
|
|
int nb_renames = 0;
|
|
AVDictionary *options = NULL;
|
|
|
|
if (img->update) {
|
|
av_strlcpy(filename, img->path, sizeof(filename));
|
|
} else if (img->use_strftime) {
|
|
time_t now0;
|
|
struct tm *tm, tmpbuf;
|
|
time(&now0);
|
|
tm = localtime_r(&now0, &tmpbuf);
|
|
if (!strftime(filename, sizeof(filename), img->path, tm)) {
|
|
av_log(s, AV_LOG_ERROR, "Could not get frame filename with strftime\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else if (img->frame_pts) {
|
|
if (av_get_frame_filename2(filename, sizeof(filename), img->path, pkt->pts, AV_FRAME_FILENAME_FLAGS_MULTIPLE) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Cannot write filename by pts of the frames.");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else if (av_get_frame_filename2(filename, sizeof(filename), img->path,
|
|
img->img_number,
|
|
AV_FRAME_FILENAME_FLAGS_MULTIPLE) < 0 &&
|
|
img->img_number > 1) {
|
|
av_log(s, AV_LOG_ERROR,
|
|
"Could not get frame filename number %d from pattern '%s'. "
|
|
"Use '-frames:v 1' for a single image, or '-update' option, or use a pattern such as %%03d within the filename.\n",
|
|
img->img_number, img->path);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
for (i = 0; i < 4; i++) {
|
|
av_dict_copy(&options, img->protocol_opts, 0);
|
|
snprintf(img->tmp[i], sizeof(img->tmp[i]), "%s.tmp", filename);
|
|
av_strlcpy(img->target[i], filename, sizeof(img->target[i]));
|
|
if (s->io_open(s, &pb[i], img->use_rename ? img->tmp[i] : filename, AVIO_FLAG_WRITE, &options) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Could not open file : %s\n", img->use_rename ? img->tmp[i] : filename);
|
|
ret = AVERROR(EIO);
|
|
goto fail;
|
|
}
|
|
if (options) {
|
|
av_log(s, AV_LOG_ERROR, "Could not recognize some protocol options\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
|
|
if (!img->split_planes || i+1 >= desc->nb_components)
|
|
break;
|
|
filename[strlen(filename) - 1] = "UVAx"[i];
|
|
}
|
|
if (img->use_rename)
|
|
nb_renames = i + 1;
|
|
|
|
if (img->split_planes) {
|
|
int ysize = par->width * par->height;
|
|
int usize = AV_CEIL_RSHIFT(par->width, desc->log2_chroma_w) * AV_CEIL_RSHIFT(par->height, desc->log2_chroma_h);
|
|
if (desc->comp[0].depth >= 9) {
|
|
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);
|
|
ff_format_io_close(s, &pb[1]);
|
|
ff_format_io_close(s, &pb[2]);
|
|
if (desc->nb_components > 3) {
|
|
avio_write(pb[3], pkt->data + ysize + 2*usize, ysize);
|
|
ff_format_io_close(s, &pb[3]);
|
|
}
|
|
} else if (img->muxer) {
|
|
ret = write_muxed_file(s, pb[0], pkt);
|
|
if (ret < 0)
|
|
goto fail;
|
|
} else {
|
|
avio_write(pb[0], pkt->data, pkt->size);
|
|
}
|
|
avio_flush(pb[0]);
|
|
ff_format_io_close(s, &pb[0]);
|
|
for (i = 0; i < nb_renames; i++) {
|
|
int ret = ff_rename(img->tmp[i], img->target[i], s);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
img->img_number++;
|
|
return 0;
|
|
|
|
fail:
|
|
av_dict_free(&options);
|
|
for (i = 0; i < FF_ARRAY_ELEMS(pb); i++)
|
|
if (pb[i])
|
|
ff_format_io_close(s, &pb[i]);
|
|
return ret;
|
|
}
|
|
|
|
static int query_codec(enum AVCodecID id, int std_compliance)
|
|
{
|
|
int i;
|
|
for (i = 0; ff_img_tags[i].id != AV_CODEC_ID_NONE; i++)
|
|
if (ff_img_tags[i].id == id)
|
|
return 1;
|
|
|
|
// Anything really can be stored in img2
|
|
return std_compliance < FF_COMPLIANCE_NORMAL;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(VideoMuxData, x)
|
|
#define ENC AV_OPT_FLAG_ENCODING_PARAM
|
|
static const AVOption muxoptions[] = {
|
|
{ "update", "continuously overwrite one file", OFFSET(update), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
|
|
{ "start_number", "set first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, ENC },
|
|
{ "strftime", "use strftime for filename", OFFSET(use_strftime), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
|
|
{ "frame_pts", "use current frame pts for filename", OFFSET(frame_pts), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
|
|
{ "atomic_writing", "write files atomically (using temporary files and renames)", OFFSET(use_rename), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
|
|
{ "protocol_opts", "specify protocol options for the opened files", OFFSET(protocol_opts), AV_OPT_TYPE_DICT, {0}, 0, 0, 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,exr,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pfm,pgm,pgmyuv,png,"
|
|
"ppm,sgi,tga,tif,tiff,jp2,j2c,j2k,xwd,sun,ras,rs,im1,im8,im24,"
|
|
"sunras,xbm,xface,pix,y",
|
|
.priv_data_size = sizeof(VideoMuxData),
|
|
.video_codec = AV_CODEC_ID_MJPEG,
|
|
.write_header = write_header,
|
|
.write_packet = write_packet,
|
|
.query_codec = query_codec,
|
|
.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_pipe,
|
|
.query_codec = query_codec,
|
|
.flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS
|
|
};
|
|
#endif
|