[Libav-user] Error DNxHD encoding with libavcodec 57.107.100

[Francesco, Cuzzocrea]

Hi to all

anyone experienced and error encodinc with latest version of 
libavcodec?  The code that works perfectly with

version 57.24.102 doesn't work with latest one. The error is "Invalid 
argument":  Here is the code:

  AVCodec         *pcodec_xd;
  AVCodecContext  *pCodecCtx_xd;
  AVFrame         *pFrame_xd;
  AVFormatContext* _avFormatContext_xd;
  AVDictionary    *av_option=NULL;
  AVPacket thpkt;
  int smerr=0, gotp;

AnsiString str1,stre;

  AVRational vform;
   unsigned long drt= 120000000;
   int xd_pkt_mxf_pts=0;
   char str_err[256];

   pcodec_xd = avcodec_find_encoder(AV_CODEC_ID_DNXHD);
   if (!pcodec_xd) { stre.printf("Unable to find codec MPEG2"); smerr = 
-4; goto stp_b2mx;}

   pCodecCtx_xd = avcodec_alloc_context3(pcodec_xd);
   if (pCodecCtx_xd==NULL) { stre.printf("Unable to alloc codec 
context");smerr = -5; goto stp_b2mx;}
   pFrame_xd = av_frame_alloc();
   if (pFrame_xd==NULL) { stre.printf("Unable to alloc frame");smerr = 
-6; goto stp_b2mx;}

   if(av_image_alloc(pFrame_xd->data, 
pFrame_xd->linesize,1920,1080,AV_PIX_FMT_YUV422P,16)<0)
      { stre.printf("Unable to alloc image");goto stp_b2mx;}

    pFrame_xd->interlaced_frame = 1; pFrame_xd->top_field_first = 1;   
pFrame_xd->qscale_type = 1;

   pCodecCtx_xd->flags =  CODEC_FLAG_INTERLACED_DCT;
   pCodecCtx_xd->gop_size=1;   pCodecCtx_xd->max_b_frames=0;
   pCodecCtx_xd->height =1080;
   vform.num=1;vform.den=1;
   pCodecCtx_xd->sample_aspect_ratio = vform;
pCodecCtx_xd->rc_max_rate=pCodecCtx_xd->rc_min_rate=pCodecCtx_xd->bit_rate=drt;
   pCodecCtx_xd->time_base.num= 1;
   pCodecCtx_xd->time_base.den== 25;
   pCodecCtx_xd->pix_fmt=AV_PIX_FMT_YUV422P;  ///< planar YUV 4:2:2, 
16bpp, (1 Cr & Cb sample per 2x1 Y samples)
   pCodecCtx_xd->thread_count=4;
   pCodecCtx_xd->width=1920;

   pCodecCtx_xd->framerate.num = 25;
   pCodecCtx_xd->framerate.den = 1;


   smerr = 
av_opt_set(pCodecCtx_xd->priv_data,"profile","dnxhd",AV_OPT_SEARCH_CHILDREN);
   if(smerr<0)
    {     if(av_strerror(smerr,str_err,256)==0){ stre.printf("Error (%s) 
setting option",str_err);  }
             else { stre.printf("Error (%d) returned from 
av_opt_set",smerr);  }
          goto stp_b2mx;
    }

   if (!avcodec_is_open(pCodecCtx_xd))
   {
     smerr = avcodec_open2(pCodecCtx_xd, pcodec_xd,&av_option);
     if ( smerr < 0)
     {
       if(av_strerror(smerr,str_err,256)==0){ stre.printf("Error opening 
codec : %s",str_err);  }
         else { stre.printf("Error (%d) opening codec",smerr);  }
       goto stp_b2mx;
     }
   }
   av_init_packet(&thpkt);

   smerr = avcodec_send_frame(pCodecCtx_xd, pFrame_xd);
   if(smerr<0)
   {
      if(av_strerror(smerr,str_err,256)==0){ stre.printf("Error returned 
from avcodec_send_frame (%s)",str_err);  }
        else { stre.printf("Error (%d) returned from 
avcodec_send_frame",smerr);  }
      goto stp_b2mx;
   }

   smerr = avcodec_receive_packet(pCodecCtx_xd, &thpkt);
   if(smerr<0)
   {
      if(av_strerror(smerr,str_err,256)==0){ stre.printf("Error returned 
from avcodec_receive_packet (%s)",str_err);  }
        else { stre.printf("Error (%d) returned from 
avcodec_receive_packet",smerr);  }
      goto stp_b2mx;
   }

All works fine till sending packet. At thispoint the error returned is 
invalid data.  Same code works with previous versions.

Any suggestions ?

regards

Francesco