/*
  * Raw Video Encoder

  * Copyright (c) 2001 Fabrice Bellard

  *
  * 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

  * Raw Video Encoder
  */
 
 #include "avcodec.h"
 #include "raw.h"

 #include "libavutil/pixdesc.h"

 #include "libavutil/intreadwrite.h"

 static av_cold int raw_init_encoder(AVCodecContext *avctx)

 {
     avctx->coded_frame = (AVFrame *)avctx->priv_data;

     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;

     avctx->coded_frame->key_frame = 1;

     avctx->bits_per_coded_sample = av_get_bits_per_pixel(&av_pix_fmt_descriptors[avctx->pix_fmt]);

     if(!avctx->codec_tag)
         avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt);
     return 0;
 }
 
 static int raw_encode(AVCodecContext *avctx,
                             unsigned char *frame, int buf_size, void *data)
 {

     int ret = avpicture_layout((AVPicture *)data, avctx->pix_fmt, avctx->width,

                                                avctx->height, frame, buf_size);

 
     if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 &&
        avctx->pix_fmt   == PIX_FMT_YUYV422) {
         int x;
         for(x = 1; x < avctx->height*avctx->width*2; x += 2)
             frame[x] ^= 0x80;
     }
     return ret;

 }
 

 AVCodec ff_rawvideo_encoder = {

     "rawvideo",

     AVMEDIA_TYPE_VIDEO,

     CODEC_ID_RAWVIDEO,
     sizeof(AVFrame),
     raw_init_encoder,
     raw_encode,

     .long_name = NULL_IF_CONFIG_SMALL("raw video"),

 };