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
|
#ifndef _INCLUDE_FFMPEG_H_
#define _INCLUDE_FFMPEG_H_
#ifdef HAVE_FFMPEG
#include "avformat.h"
#endif
/* Define a codec name/identifier for timelapse videos, so that we can
* differentiate between normal mpeg1 videos and timelapse videos.
*/
#define TIMELAPSE_CODEC "mpeg1_tl"
struct ffmpeg {
#ifdef HAVE_FFMPEG
AVFormatContext *oc;
AVStream *video_st;
AVCodecContext *c;
AVFrame *picture; /* contains default imaga pointers */
uint8_t *video_outbuf;
int video_outbuf_size;
void *udata; /* U & V planes for greyscale images */
int vbr; /* variable bitrate setting */
char codec[20]; /* codec name */
#else
int dummy;
#endif
};
/* Initialize FFmpeg stuff. Needs to be called before ffmpeg_open. */
void ffmpeg_init(void);
/* Open an mpeg file. This is a generic interface for opening either an mpeg1 or
* an mpeg4 video. If non-standard mpeg1 isn't supported (FFmpeg build > 4680),
* calling this function with "mpeg1" as codec results in an error. To create a
* timelapse video, use TIMELAPSE_CODEC as codec name.
*/
struct ffmpeg *ffmpeg_open(
struct context *cnt,
char *ffmpeg_video_codec,
char *filename,
unsigned char *y, /* YUV420 Y plane */
unsigned char *u, /* YUV420 U plane */
unsigned char *v, /* YUV420 V plane */
int width,
int height,
int rate, /* framerate, fps */
int bps, /* bitrate; bits per second */
int vbr /* variable bitrate */
);
/* Puts the image pointed to by the picture member of struct ffmpeg. */
void ffmpeg_put_image(struct context *cnt, struct ffmpeg *);
/* Puts the image defined by u, y and v (YUV420 format). */
void ffmpeg_put_other_image(
struct context *cnt,
struct ffmpeg *ffmpeg,
unsigned char *y,
unsigned char *u,
unsigned char *v
);
/* Closes the mpeg file. */
void ffmpeg_close(struct ffmpeg *);
#endif /* _INCLUDE_FFMPEG_H_ */
|
