mirror of
https://github.com/mpv-player/mpv
synced 2024-12-30 11:02:10 +00:00
998eb2c1c9
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7903 b3059339-0415-0410-9bf9-f77b7e298cf2
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
* For an excellent introduction to the JPEG format, see:
|
|
* http://www.ece.purdue.edu/~bourman/grad-labs/lab8/pdf/lab.pdf
|
|
*/
|
|
|
|
|
|
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);
|