extern "C"
{
#include "avcodec.h"
#include "avformat.h"
#include "avio.h"
#include "avutil.h"
#include "common.h"
#include "intfloat_readwrite.h"
#include "inttypes.h"
#include "log.h"
#include "mathematics.h"
#include "mem.h"
#include "rational.h"
#include "stdint.h"
#include "swscale.h"
}
#pragma comment(lib,"avcodec.lib")
#pragma comment(lib,"avformat.lib")
#pragma comment(lib,"avutil.lib")
#define RGBTOYUV(B, G, R, Y, U, V) \
Y = ( ( 66 * R 129 * G 25 * B 128) >> 8) 16;U = ( ( -38 * R - 74 * G 112 * B 128) >> 8) 128;V = ( ( 112 * R - 94 * G - 18 * B 128) >> 8) 128;
size_t BufSize = 9437184;
BYTE *pStream = new BYTE[BufSize];
BYTE* pBmp24;
int CALLBACK SnapThreadCallback(BYTE *pBuffer) //摄像头显示回调函数
{
pBmp24 = CameraISP(pBuffer);
if(pBmp24)
{
if (bVideo)
{
memcpy(pStream, pBmp24, BufSize);
}
CameraDisplayRGB24(pBmp24);
}
return TRUE;
}
void CXXDlg::OnBtnVideo()
{
// TODO: Add your control notification handler code here
//CWinThread *pVedioStart;
if (m_VideoMode != VIDEOMODE_PLAY)
{
GetDlgItem(IDC_BTN_VIDEO)->SetWindowText("停止录像");
AfxBeginThread((AFX_THREADPROC)VIDEO, this, THREAD_PRIORITY_ABOVE_NORMAL, 0, NULL);
m_VideoMode = VIDEOMODE_PLAY;
}
else
{
m_VideoMode = VIDEOMODE_STOP;
GetDlgItem(IDC_BTN_VIDEO)->SetWindowText("开始录像");
}
}
UINT VIDEO(LPVOID pParam)
{
CXXDlg * dlg = (CXXDlg *)pParam;
BYTE* yuv = new BYTE[bufzise * 3 / 2];
CString svideofile;
CTime time = CTime::GetCurrentTime();
svideofile.Format("%02d%02d%02d%02d%02d", time.GetMonth(), time.GetDay(),
time.GetHour(), time.GetMinute(), time.GetSecond());
CFile file(svideofile, CFile::modeWrite|CFile::modeCreate);
int m_frame_count = 0;
Sleep(100);
bVideo = TRUE;
while(dlg->m_VideoMode != VIDEOMODE_STOP)
{
if (StreamOK)
{
dlg->RGB2YUV(&pStream, &yuv, 3, ImgW, ImgH);
memset(lpCurrentImage, 0, bufzise * 3);
file.SeekToEnd();
file.Write(yuv, bufzise*3/2);
m_frame_count ;
}
}
file.Close();
dlg->SaveToH264(svideofile, ImgW, ImgH, m_frame_count);
AfxMessageBox("录像已保存!");
return 0;
}
void CXXDlg::RGB2YUV(BYTE** rgb, BYTE** yuv, unsigned rgbIncrement, int nWidth, int nHeight)
{
unsigned width = nWidth; // 图像宽度
unsigned height = nHeight; // 图像高度
const unsigned planeSize = width*height;
const unsigned halfWidth = width >> 1;
unsigned count = 0;
BYTE * yplane = *yuv;
BYTE * uplane = *yuv planeSize;
BYTE * vplane = *yuv planeSize (planeSize >> 2);
BYTE * rgbIndex = *rgb;
for (unsigned y = 0; y < height; y )
{
BYTE * yline = yplane (y * width);
BYTE * uline = uplane ((y >> 1) * halfWidth);
BYTE * vline = vplane ((y >> 1) * halfWidth);
rgbIndex = *rgb (width*(height-1-y)*rgbIncrement); //将图像翻转
for (unsigned x = 0; x < width; x =2)
{
RGBTOYUV(rgbIndex[0], rgbIndex[1], rgbIndex[2], *yline, *uline, *vline);
rgbIndex = rgbIncrement; count ;
yline ;
RGBTOYUV(rgbIndex[0], rgbIndex[1], rgbIndex[2],*yline, *uline, *vline);
rgbIndex = rgbIncrement; count ;
yline ;
uline ;
vline ;
}
}
}
BOOL CXXDlg::SaveToH264 (CString YUVfile, int vWidth, int vHeight, int count)
{
AVFormatContext* oc;
AVOutputFormat* fmt;
AVStream* video_st;
double video_pts;
uint8_t* video_outbuf;
uint8_t* picture_buf;
AVFrame* picture;
int size;
int ret;
int video_outbuf_size;
CString s;
s = YUVfile ".avi";
const char *videofile = s.GetBuffer(0);
s.ReleaseBuffer();
FILE *fin = fopen(YUVfile, "rb");
CFile::modeWrite|CFile::modeCreate);
av_register_all();
fmt = guess_format(NULL, videofile, NULL);
oc = av_alloc_format_context();
oc->oformat = fmt;
snprintf(oc->filename, sizeof(oc->filename), "%s", videofile);
video_st = NULL;
if (fmt->video_codec != CODEC_ID_NONE)
{
AVCodecContext* c;
video_st = av_new_stream(oc, 0);
c = video_st->codec;
c->codec_id = fmt->video_codec;
c->codec_type = CODEC_TYPE_VIDEO;
c->bit_rate = 400000;
c->width = vWidth;
c->height = vHeight;
c->time_base.num = 1;
c->time_base.den = 10;
c->gop_size = 12;
c->pix_fmt = PIX_FMT_YUV420P;
if (c->codec_id == CODEC_ID_MPEG2VIDEO)
{
c->max_b_frames = 2;
}
if (c->codec_id == CODEC_ID_MPEG1VIDEO)
{
c->mb_decision = 2;
}
if (!strcmp(oc->oformat->name, "mp4") || !strcmp(oc->oformat->name, "mov") || !strcmp(oc->oformat->name, "3gp"))
{
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
}
if (av_set_parameters(oc, NULL)<0)
{
return FALSE;
}
dump_format(oc, 0, videofile, 1);
if (video_st)
{
AVCodecContext* c;
AVCodec* codec;
c = video_st->codec;
codec = avcodec_find_encoder(c->codec_id);
if (!codec)
{
return FALSE;
}
if (avcodec_open(c, codec) < 0)
{
return FALSE;
}
if (!(oc->oformat->flags & AVFMT_RAWPICTURE))
{
video_outbuf_size = 200000;
video_outbuf = (uint8_t*)av_malloc(video_outbuf_size);
}
picture = avcodec_alloc_frame();
size = avpicture_get_size(c->pix_fmt, c->width, c->height);
picture_buf = (uint8_t*)av_malloc(size);
if (!picture_buf)
{
av_free(picture);
}
avpicture_fill((AVPicture*)picture, picture_buf, c->pix_fmt, c->width, c->height);
}
if (!(fmt->flags & AVFMT_NOFILE))
{
if (url_fopen(&oc->pb, videofile, URL_WRONLY) < 0)
{
return FALSE;
}
}
av_write_header(oc);
for (int i=0; i<count; i )
{
if (savedlg)
{
savedlg->PostMessage(WM_COUNT, NULL, (LPARAM)i);
}
if (video_st)
{
video_pts = (double)(video_st->pts.val * video_st->time_base.num / video_st->time_base.den);
}
else
{
video_pts = 0.0;
}
if (!video_st/* || video_pts >= 5.0*/)
{
break;
}
AVCodecContext* c;
c = video_st->codec;
size = c->width * c->height;
if (fread(picture_buf, 1, size*3/2, fin) < 0)
{
break;
}
picture->data[0] = picture_buf; // 亮度
picture->data[1] = picture_buf size; // 色度
picture->data[2] = picture_buf size*5/4; // 色度
if (oc->oformat->flags & AVFMT_RAWPICTURE)
{
AVPacket pkt;
av_init_packet(&pkt);
pkt.flags |= PKT_FLAG_KEY;
pkt.stream_index = video_st->index;
pkt.data = (uint8_t*)picture;
pkt.size = sizeof(AVPicture);
ret = av_write_frame(oc, &pkt);
}
else
{
int out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, picture);
if (out_size > 0)
{
AVPacket pkt;
av_init_packet(&pkt);
pkt.pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st->time_base);
if (c->coded_frame->key_frame)
{
pkt.flags |= PKT_FLAG_KEY;
}
pkt.stream_index = video_st->index;
pkt.data = video_outbuf;
pkt.size = out_size;
ret = av_write_frame(oc, &pkt);
}
}
}
if (video_st)
{
avcodec_close(video_st->codec);
av_free(picture);
av_free(video_outbuf);
}
av_write_trailer(oc);
for (int j=0; j<oc->nb_streams; j )
{
av_freep(&oc->streams[j]->codec);
av_freep(&oc->streams[j]);
}
if (!(fmt->flags & AVFMT_NOFILE))
{
url_fclose(oc->pb);
}
av_free(oc);
fclose(fin);
DeleteFile(YUVfile);
//AfxMessageBox("视频已保存!");
return TRUE;
}
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