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/*
* ***** 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.
*
*
* Contributor(s): Peter Schlaile
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __IMB_INDEXER_H__
#define __IMB_INDEXER_H__
#ifdef WIN32
# include <io.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include "IMB_anim.h"
/*
* separate animation index files to solve the following problems:
*
* a) different timecodes within one file (like DTS/PTS, Timecode-Track,
* "implicit" timecodes within DV-files and HDV-files etc.)
* b) seeking difficulties within ffmpeg for files with timestamp holes
* c) broken files that miss several frames / have varying framerates
* d) use proxies accordingly
*
* ... we need index files, that provide us with
*
* the binary(!) position, where we have to seek into the file *and*
* the continuous frame number (ignoring the holes) starting from the
* beginning of the file, so that we know, which proxy frame to serve.
*
* This index has to be only built once for a file and is written into
* the BL_proxy directory structure for later reuse in different blender files.
*/
typedef struct anim_index_entry {
int frameno;
unsigned long long seek_pos;
unsigned long long seek_pos_dts;
unsigned long long pts;
} anim_index_entry;
struct anim_index {
char name[1024];
int num_entries;
struct anim_index_entry *entries;
};
struct anim_index_builder;
typedef struct anim_index_builder {
FILE * fp;
char name[FILE_MAX];
char temp_name[FILE_MAX];
void * private_data;
void (*delete_priv_data)(struct anim_index_builder * idx);
void (*proc_frame)(struct anim_index_builder * idx,
unsigned char *buffer,
int data_size,
struct anim_index_entry *entry);
} anim_index_builder;
anim_index_builder * IMB_index_builder_create(const char * name);
void IMB_index_builder_add_entry(
anim_index_builder * fp,
int frameno, unsigned long long seek_pos,
unsigned long long seek_pos_dts,
unsigned long long pts);
void IMB_index_builder_proc_frame(
anim_index_builder * fp,
unsigned char * buffer,
int data_size,
int frameno, unsigned long long seek_pos,
unsigned long long seek_pos_dts,
unsigned long long pts);
void IMB_index_builder_finish(anim_index_builder * fp, int rollback);
struct anim_index *IMB_indexer_open(const char * name);
unsigned long long IMB_indexer_get_seek_pos(
struct anim_index *idx, int frameno_index);
unsigned long long IMB_indexer_get_seek_pos_dts(
struct anim_index *idx, int frameno_index);
int IMB_indexer_get_frame_index(struct anim_index * idx, int frameno);
unsigned long long IMB_indexer_get_pts(struct anim_index *idx,
int frame_index);
int IMB_indexer_get_duration(struct anim_index * idx);
int IMB_indexer_can_scan(struct anim_index * idx,
int old_frame_index, int new_frame_index);
void IMB_indexer_close(struct anim_index * idx);
void IMB_free_indices(struct anim * anim);
int IMB_anim_index_get_frame_index(
struct anim *anim, IMB_Timecode_Type tc, int position);
struct anim *IMB_anim_open_proxy(
struct anim *anim, IMB_Proxy_Size preview_size);
struct anim_index * IMB_anim_open_index(
struct anim *anim, IMB_Timecode_Type tc);
int IMB_proxy_size_to_array_index(IMB_Proxy_Size pr_size);
int IMB_timecode_to_array_index(IMB_Timecode_Type tc);
#endif
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