1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/* gap_audio_extract.h
*
* GAP extract audio from videofile procedures
*
*/
/* 2008.06.24 hof created (moved audio extract parts of gap_vex_exec.c to this module)
*/
#ifndef GAP_AUDIO_EXTRACT_H
#define GAP_AUDIO_EXTRACT_H
#include "config.h"
/* GIMP includes */
#include "gtk/gtk.h"
#include "libgimp/gimp.h"
/* GAP includes */
#ifdef GAP_ENABLE_VIDEOAPI_SUPPORT
#include "gap_vid_api.h"
#else
#ifndef GAP_STUBTYPE_GVA_HANDLE
typedef gpointer t_GVA_Handle;
#define GAP_STUBTYPE_GVA_HANDLE
#endif
#endif
#include "gap-intl.h"
#ifdef GAP_ENABLE_VIDEOAPI_SUPPORT
/* -------------------------
* gap_audio_extract_as_wav
* -------------------------
* extract specified number of samples at current
* position of the specified (already opened) videohandle.
* and optional save extracted audiodata as RIFF WAVE file
* (set wav_save to FALSE to skip writing to wav file,
* this is typical used to perform dummy read for
* advancing current position in the videohandle)
*/
void
gap_audio_extract_as_wav(const char *audiofile
, t_GVA_Handle *gvahand
, gdouble samples_to_read
, gboolean wav_save
, gboolean do_progress
, GtkWidget *progressBar
, t_GVA_progress_callback_fptr fptr_progress_callback
, gpointer user_data
);
/* ---------------------------------
* gap_audio_extract_from_videofile
* ---------------------------------
* extract the specified audiotrack to WAVE file. (name specified via audiofile)
* starting at position (specified by l_pos and l_pos_unit)
* in length of extracted_frames (if number of frames is exactly known)
* or in length expected_frames (is a guess if l_extracted_frames < 1)
* use do_progress flag value TRUE for progress feedback on the specified
* progressBar.
* (if progressBar = NULL gimp progress is used
* this usually refers to the progress bar in the image window)
* Note:
* this feature is not present if compiled without GAP_ENABLE_VIDEOAPI_SUPPORT
*/
void
gap_audio_extract_from_videofile(const char *videoname
, const char *audiofile
, gint32 audiotrack
, const char *preferred_decoder
, gint exact_seek
, t_GVA_PosUnit pos_unit
, gdouble pos
, gdouble extracted_frames
, gdouble expected_frames
, gboolean do_progress
, GtkWidget *progressBar
, t_GVA_progress_callback_fptr fptr_progress_callback
, gpointer user_data
);
#endif /* GAP_ENABLE_VIDEOAPI_SUPPORT */
#endif /* end GAP_AUDIO_EXTRACT_H */
|
