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blender-archive/source/blender/imbuf/intern/IMB_anim.h
Bastien Montagne c528b9b777 Fix T53003: IMB: Invalid framerate handling due to short integer overflow.
FFMPEG uses int for the numerator, while Blender uses a short. So in
cases people gave weird exotic framerate values and we cannot reduce
enough the numerator, we'd get totally weird values (even negative frame
rates sometimes!)

Now we add checks for short overflow and approximate as best as possible
in that case (error should not matter unless you have shots of at least
several hundreds of hours ;) ).
2018-01-26 14:59:16 +01:00

164 lines
3.4 KiB
C++

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/imbuf/intern/IMB_anim.h
* \ingroup imbuf
*/
#ifndef __IMB_ANIM_H__
#define __IMB_ANIM_H__
#ifdef _WIN32
# define INC_OLE2
# include <windows.h>
# include <windowsx.h>
# include <mmsystem.h>
# include <memory.h>
# include <commdlg.h>
# include <vfw.h>
# undef AVIIF_KEYFRAME // redefined in AVI_avi.h
# undef AVIIF_LIST // redefined in AVI_avi.h
#endif /* _WIN32 */
#include <sys/types.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#ifdef _WIN32
# include <io.h>
#else
# include <dirent.h>
#endif
#include "imbuf.h"
#ifdef WITH_AVI
# include "AVI_avi.h"
#endif
#include "IMB_imbuf_types.h"
#include "IMB_imbuf.h"
#include "IMB_allocimbuf.h"
#ifdef WITH_FFMPEG
# include <libavformat/avformat.h>
# include <libavcodec/avcodec.h>
# include <libswscale/swscale.h>
#endif
/* more endianness... should move to a separate file... */
#ifdef __BIG_ENDIAN__
# define LITTLE_LONG SWAP_LONG
#else
# define LITTLE_LONG ENDIAN_NOP
#endif
/* anim.curtype, runtime only */
#define ANIM_NONE 0
#define ANIM_SEQUENCE (1 << 0)
#define ANIM_MOVIE (1 << 4)
#define ANIM_AVI (1 << 6)
#define ANIM_QTIME (1 << 7)
#define ANIM_FFMPEG (1 << 8)
#define MAXNUMSTREAMS 50
struct _AviMovie;
struct anim_index;
struct anim {
int ib_flags;
int curtype;
int curposition; /* index 0 = 1e, 1 = 2e, enz. */
int duration;
int frs_sec;
double frs_sec_base;
int x, y;
/* for number */
char name[1024];
/* for sequence */
char first[1024];
/* movie */
void *movie;
void *track;
void *params;
int orientation;
size_t framesize;
int interlacing;
int preseek;
int streamindex;
/* avi */
struct _AviMovie *avi;
#if defined(_WIN32)
/* windows avi */
int avistreams;
int firstvideo;
int pfileopen;
PAVIFILE pfile;
PAVISTREAM pavi[MAXNUMSTREAMS]; // the current streams
PGETFRAME pgf;
#endif
#ifdef WITH_FFMPEG
AVFormatContext *pFormatCtx;
AVCodecContext *pCodecCtx;
AVCodec *pCodec;
AVFrame *pFrame;
int pFrameComplete;
AVFrame *pFrameRGB;
AVFrame *pFrameDeinterlaced;
struct SwsContext *img_convert_ctx;
int videoStream;
struct ImBuf *last_frame;
int64_t last_pts;
int64_t next_pts;
AVPacket next_packet;
#endif
char index_dir[768];
int proxies_tried;
int indices_tried;
struct anim *proxy_anim[IMB_PROXY_MAX_SLOT];
struct anim_index *curr_idx[IMB_TC_MAX_SLOT];
char colorspace[64];
char suffix[64]; /* MAX_NAME - multiview */
};
#endif