summaryrefslogtreecommitdiffstats
path: root/libvo/jpeg_enc.h
blob: 923b431a9bf5638049e9cff3915713c17e3cc1f3 (plain)
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
/* Straightforward (to be) optimized JPEG encoder for the YUV422 format 
 * based on mjpeg code from ffmpeg. 
 *
 * Copyright (c) 2002, Rik Snel
 * Parts from ffmpeg Copyright (c) 2000-2002 Fabrice Bellard
 *
 * 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
 *
 * For an excellent introduction to the JPEG format, see:
 * http://www.ece.purdue.edu/~bourman/grad-labs/lab8/pdf/lab.pdf
 */

#ifndef JPEG_ENC_H
#define JPEG_ENC_H

typedef struct {
	struct MpegEncContext *s;
	int cheap_upsample;
	int bw;
	int y_ps;
	int u_ps;
	int v_ps;
	int y_rs;
	int u_rs;
	int v_rs;
} jpeg_enc_t;

jpeg_enc_t *jpeg_enc_init(int w, int h, int y_psize, int y_rsize, 
		int u_psize, int u_rsize, int v_psize, int v_rsize,
		int cu, int q, int b);

int jpeg_enc_frame(jpeg_enc_t *j, unsigned char *y_data, 
		unsigned char *u_data, unsigned char *v_data, char *bufr);

void jpeg_enc_uninit(jpeg_enc_t *j);

#endif /* JPEG_ENC_H */