/*
  * RV10 encoder
  * Copyright (c) 2000,2001 Fabrice Bellard
  * Copyright (c) 2002-2004 Michael Niedermayer
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**

  * @file

  * RV10 encoder
  */
 
 #include "mpegvideo.h"
 #include "put_bits.h"

 #include "rv10.h"

 int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)

 {
     int full_frame= 0;
 

     avpriv_align_put_bits(&s->pb);

 
     put_bits(&s->pb, 1, 1);     /* marker */
 

     put_bits(&s->pb, 1, (s->pict_type == AV_PICTURE_TYPE_P));

     put_bits(&s->pb, 1, 0);     /* not PB-mframe */

 
     put_bits(&s->pb, 5, s->qscale);
 

     if (s->pict_type == AV_PICTURE_TYPE_I) {

         /* specific MPEG like DC coding not used */
     }
     /* if multiple packets per frame are sent, the position at which
        to display the macroblocks is coded here */
     if(!full_frame){

         if (s->mb_width * s->mb_height >= (1U << 12)) {

             avpriv_report_missing_feature(s->avctx, "Encoding frames with %d (>= 4096) macroblocks",
                                           s->mb_width * s->mb_height);

             return AVERROR(ENOSYS);
         }

         put_bits(&s->pb, 6, 0); /* mb_x */
         put_bits(&s->pb, 6, 0); /* mb_y */
         put_bits(&s->pb, 12, s->mb_width * s->mb_height);
     }
 
     put_bits(&s->pb, 3, 0);     /* ignored */

     return 0;

 }
 

 static const AVClass rv10_class = {
     .class_name = "rv10 encoder",
     .item_name  = av_default_item_name,
     .option     = ff_mpv_generic_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

 AVCodec ff_rv10_encoder = {

     .name           = "rv10",

     .long_name      = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),

     .type           = AVMEDIA_TYPE_VIDEO,

     .id             = AV_CODEC_ID_RV10,

     .priv_data_size = sizeof(MpegEncContext),

     .init           = ff_mpv_encode_init,
     .encode2        = ff_mpv_encode_picture,
     .close          = ff_mpv_encode_end,

     .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },

     .priv_class     = &rv10_class,

 };