[FFmpeg-devel] dear friends,help me with memory leak.

[44072429]

dear friends.
  
 i search about one week on google.
 and no result.some one met memory leak,because they didn't free resources.
 and different to me.
  
 i tested on windows xp sp3 and windows 7.
 IDE,Visual studio 6.0,Visual studio 2005
 the source was ffmpeg 0.6.not the lastest.because the lastest can't compile with mingw32.
  
 there is 3 test streams.h264 mpeg4 mjpeg,all of them memory leak after i called avcodec_decode_video2
  
 and ffmpeg.exe works currectly.
  
 the following code is my decode wrapper.
  
  service_error_t FFMpegVideoDecoder::Decode(const char* input,const int input_len,int* use_len,video_frame_t* video_frame)
 {
  service_error_t service_error;
   if(!codec_context)
  {
   service_error.init(service_error_type_failed,"codec_context wasn't inited");
   return service_error;
  }
   AVPacket* pkt = (AVPacket*)av_malloc(sizeof(AVPacket));
  av_init_packet(pkt);
   AVFrame * picture = avcodec_alloc_frame();
   av_new_packet(pkt,input_len);
   pkt->flags = AV_PKT_FLAG_KEY;
   memcpy(pkt->data,input,input_len);
   int len = avcodec_decode_video2(
   codec_context,
   picture,
   &got_picture_ptr,
   pkt);
   if (len < 0)
  {
   service_error.init(service_error_type_failed,"Error while decoding");
   return service_error;
  }
   if(got_picture_ptr == 0)
  {
   service_error.init(service_error_type_failed,"input buffer is less to form a frame");
   return service_error;
  }
  else
  {
   for(int i = 0; i < 4; i++)
   {
    video_frame->data[i] = (char*)picture->data[i];
    video_frame->linesize[i] = picture->linesize[i];
   }
    video_frame->index = picture->coded_picture_number;
   video_frame->video_frame_colorspace = yk_colorspace(codec_context->pix_fmt);
   m_param.width    = codec_context->width;
   m_param.height    = codec_context->height;
   video_frame->width = Width();
   video_frame->height = Height();
  }
  
  *use_len = input_len;
   av_free_packet(pkt);
   av_free(pkt);
  av_free(picture);
   return service_error;
 }
  
 this made me crasy......help.....
  
 Regards.