'avcodec_decode_video' of ffmpeg doesn't work - visual-c++

Question

i use vc++ express, and am going to get with ffmpeg..
but with the 1st program i met a trouble.
vc++ says 'identifier 'avcodec_decode_video': identifier not found' on commpile process.
i don't know why....
next is waht i coded...
.
include "avcodec.h"
include "avformat.h"
include "swscale.h"
int main(int argc, char *argv[])
{
av_register_all();
AVFormatContext *pFormatCtx;
// Open video file
if(av_open_input_file(&pFormatCtx, argv[1], NULL, 0, NULL)!=0)
return -1; // Couldn't open file
// Retrieve stream information
if(av_find_stream_info(pFormatCtx)<0)
return -1; // Couldn't find stream information
// Dump information about file onto standard error
dump_format(pFormatCtx, 0, argv[1], 0);
int i;
AVCodecContext *pCodecCtx;
// Find the first video stream
int videoStream=-1;
for(i=0; i<pFormatCtx->nb_streams; i++)
if(pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
videoStream=i;
break;
}
if(videoStream==-1)
return -1; // Didn't find a video stream
// Get a pointer to the codec context for the video stream
pCodecCtx=pFormatCtx->streams[videoStream]->codec;
AVCodec *pCodec;
// Find the decoder for the video stream
pCodec=avcodec_find_decoder(pCodecCtx->codec_id);
if(pCodec==NULL) {
fprintf(stderr, "Unsupported codec!\n");
return -1; // Codec not found
}
// Open codec
if(avcodec_open(pCodecCtx, pCodec)<0)
return -1; // Could not open codec
AVFrame *pFrame;
// Allocate video frame
pFrame=avcodec_alloc_frame();
// Allocate an AVFrame structure
AVFrame* pFrameRGB=avcodec_alloc_frame();
if(pFrameRGB==NULL)
return -1;
uint8_t *buffer;
int numBytes;
// Determine required buffer size and allocate buffer
numBytes=avpicture_get_size(PIX_FMT_RGB24, pCodecCtx->width,pCodecCtx->height);
buffer=(uint8_t *)av_malloc(numBytes*sizeof(uint8_t));
// Assign appropriate parts of buffer to image planes in pFrameRGB
// Note that pFrameRGB is an AVFrame, but AVFrame is a superset
// of AVPicture
avpicture_fill((AVPicture *)pFrameRGB, buffer, PIX_FMT_RGB24,pCodecCtx->width, pCodecCtx->height);
int frameFinished;
AVPacket packet;
i=0;
while(av_read_frame(pFormatCtx, &packet)>=0) {
if(packet.stream_index==videoStream) {
**// here makes compile error**
avcodec_decode_video(pCodecCtx, pFrame, &frameFinished,packet.data, packet.size);
if(frameFinished) {
img_convert((AVPicture *)pFram eRGB, PIX_FMT_RGB24, (AVPicture*)pFrame, pCodecCtx->pix_fmt,pCodecCtx->width, pCodecCtx->height);
}
av_free_packet(&packet);
}
av_free(buffer);
av_free(pFrameRGB);
av_free(pFrame);
avcodec_close(pCodecCtx);
av_close_input_file(pFormatCtx);
return 0;
}

Answer 1

Maybe it's simply because avcodec_decode_video was replaced by avcodec_decode_video2 in ffmpeg?
http://cekirdek.pardus.org.tr/~ismail/ffmpeg-docs/deprecated.html