FFmpeg/libavformat/img2.h
Andreas Rheinhardt 497a0f839d avformat/img2: Avoid relocations for ff_img_tags
The strings here are so short that using a pointer is wasteful
(the longest string takes nine bytes; on 64 bit systems,
the pointer+padding already take 12 bytes). So avoid them
and add asserts to ensure that no one ever tries to use a too
long tag.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-04-11 12:53:26 +02:00

80 lines
2.1 KiB
C

/*
* Image format
* Copyright (c) 2014 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
*/
#ifndef AVFORMAT_IMG2_H
#define AVFORMAT_IMG2_H
#include <stdint.h>
#include "avformat.h"
#include "libavutil/opt.h"
#if HAVE_GLOB
#include <glob.h>
#endif
enum PatternType {
PT_GLOB_SEQUENCE,
PT_GLOB,
PT_SEQUENCE,
PT_NONE,
PT_DEFAULT
};
typedef struct VideoDemuxData {
const AVClass *class; /**< Class for private options. */
int img_first;
int img_last;
int img_number;
int64_t pts;
int img_count;
int is_pipe;
int split_planes; /**< use independent file for each Y, U, V plane */
char path[1024];
char *pixel_format; /**< Set by a private option. */
int width, height; /**< Set by a private option. */
AVRational framerate; /**< Set by a private option. */
int loop;
int pattern_type; /**< PatternType */
int use_glob;
#if HAVE_GLOB
glob_t globstate;
#endif
int start_number;
int start_number_range;
int frame_size;
int ts_from_file;
int export_path_metadata; /**< enabled when set to 1. */
} VideoDemuxData;
typedef struct IdStrMap {
enum AVCodecID id;
char str[12];
} IdStrMap;
extern const IdStrMap ff_img_tags[];
extern const AVOption ff_img_options[];
int ff_img_read_header(AVFormatContext *s1);
int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt);
#endif