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blender-archive/source/blender/imbuf/intern/IMB_anim.h
Sebastian Parborg ded68fb102 VSE: Fix audaspace not reading ffmpeg files with start offset correctly
The duration and start time for audio strips were not correctly read in
audaspace.

Some video files have a "lead in" section of audio that plays before the
video starts playing back. Before this patch, we would play this lead in
audio at the same time as the video started and thus the audio would not
be in sync anymore.

Now the lead in audio is cut off and the duration should be correctly
calculated with this in mind.

If the audio starts after the video, the audio strip is shifted to
account for this, but it will also lead to cut off audio which might not
be wanted. However we don't have a simple way to solve this at this
point.

Differential Revision: http://developer.blender.org/D11917
2021-08-16 15:10:58 +02:00

154 lines
3.2 KiB
C++

/*
* 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.
*/
/** \file
* \ingroup imbuf
*/
#pragma once
#ifdef _WIN32
# define INC_OLE2
# include <commdlg.h>
# include <memory.h>
# include <mmsystem.h>
# include <vfw.h>
# include <windows.h>
# include <windowsx.h>
# undef AVIIF_KEYFRAME /* redefined in AVI_avi.h */
# undef AVIIF_LIST /* redefined in AVI_avi.h */
#endif /* _WIN32 */
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.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.h"
#include "IMB_imbuf_types.h"
#include "IMB_allocimbuf.h"
#ifdef WITH_FFMPEG
# include <libavcodec/avcodec.h>
# include <libavformat/avformat.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_FFMPEG (1 << 8)
#define MAXNUMSTREAMS 50
struct IDProperty;
struct _AviMovie;
struct anim_index;
struct anim {
int ib_flags;
int curtype;
int cur_position; /* index 0 = 1e, 1 = 2e, enz. */
int duration_in_frames;
int frs_sec;
double frs_sec_base;
double start_offset;
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 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 *cur_frame_final;
int64_t cur_pts;
int64_t cur_key_frame_pts;
AVPacket *cur_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 */
struct IDProperty *metadata;
};