Update of /cvsroot/epfl/tgengine-0.1
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv1911
Added Files:
video.cc video.h
Log Message:
capture video
--- NEW FILE: video.cc ---
/* Video
*
* Copyright (C) 2003-2004, Alexander Zaprjagaev <fr...@fr...>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef TGVIDEO
#include <stdio.h>
#include "video.h"
namespace tg
{
Video::Video(const char *name,int width,int height,int bitrate) {
avcodec_init();
avcodec_register_all();
codec = avcodec_find_encoder(CODEC_ID_MPEG2VIDEO);
c = avcodec_alloc_context();
c->bit_rate = bitrate;
c->width = width;
c->height = height;
c->frame_rate = 25;
c->frame_rate_base= 1;
c->gop_size = 10;
c->max_b_frames = 1;
avcodec_open(c,codec);
picture = avcodec_alloc_frame();
yuv = avcodec_alloc_frame();
int size = avpicture_get_size(PIX_FMT_YUV420P,width,height);
yuv_data = (uint8_t*)malloc(size);
avpicture_fill((AVPicture*)yuv,yuv_data,PIX_FMT_YUV420P,width,height);
outbuf_size = 1024 * 1024;
outbuf = (uint8_t*)malloc(outbuf_size);
file = fopen(name,"wb");
}
Video::~Video() {
char buf[4] = { 0x00, 0x00, 0x01, 0xb7 };
fwrite(buf,1,4,file);
fclose(file);
avcodec_close(c);
free(c);
free(yuv);
free(yuv_data);
free(picture);
}
/*
*/
void Video::save(unsigned char *data,int flip) {
if(flip) {
for(int y = 0; y < c->height / 2; y++) {
unsigned char *l0 = &data[c->width * y * 3];
unsigned char *l1 = &data[c->width * (c->height - y - 1) * 3];
for(int x = 0; x < c->width * 3; x++) {
unsigned char l = *l0;
*l0++ = *l1;
*l1++ = l;
}
}
}
avpicture_fill((AVPicture*)picture,(uint8_t*)data,PIX_FMT_RGB24,c->width,c->height);
img_convert((AVPicture*)yuv,PIX_FMT_YUV420P,(AVPicture*)picture,PIX_FMT_RGB24,c->width,c->height);
int out_size = avcodec_encode_video(c,outbuf,outbuf_size,yuv);
fwrite(outbuf,1,out_size,file);
}
}
#endif
--- NEW FILE: video.h ---
/* Video
*
* Copyright (C) 2003-2004, Alexander Zaprjagaev <fr...@fr...>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef TGVIDEO
#ifndef __VIDEO_H__
#define __VIDEO_H__
#include <stdio.h>
#include <malloc.h>
#include <avcodec.h>
namespace tg
{
class Video {
public:
Video(const char *name,int width,int height,int bitrate);
~Video();
void save(unsigned char *data,int flip = 0);
protected:
AVCodec *codec;
AVCodecContext *c;
AVFrame *picture;
AVFrame *yuv;
uint8_t *yuv_data;
int outbuf_size;
uint8_t *outbuf;
FILE *file;
};
#endif /* __VIDEO_H__ */
}
#endif
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