/*
  * 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 "internal.h"

 #include "libavutil/pixdesc.h"

 #include "libavutil/intreadwrite.h"

 #include "libavutil/internal.h"

 static av_cold int raw_encode_init(AVCodecContext *avctx)

 {

     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
 

     avctx->coded_frame            = avctx->priv_data;

     avcodec_get_frame_defaults(avctx->coded_frame);

     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;

     avctx->bits_per_coded_sample = av_get_bits_per_pixel(desc);

     if(!avctx->codec_tag)
         avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt);
     return 0;
 }
 

 static int raw_encode(AVCodecContext *avctx, AVPacket *pkt,
                       const AVFrame *frame, int *got_packet)

 {

     int ret = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
 
     if (ret < 0)
         return ret;
 

     if ((ret = ff_alloc_packet2(avctx, pkt, ret)) < 0)

         return ret;
     if ((ret = avpicture_layout((const AVPicture *)frame, avctx->pix_fmt, avctx->width,
                                 avctx->height, pkt->data, pkt->size)) < 0)
         return ret;

 
     if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 &&

        avctx->pix_fmt   == AV_PIX_FMT_YUYV422) {

         int x;
         for(x = 1; x < avctx->height*avctx->width*2; x += 2)

             pkt->data[x] ^= 0x80;

     }

     pkt->flags |= AV_PKT_FLAG_KEY;
     *got_packet = 1;
     return 0;

 }
 

 AVCodec ff_rawvideo_encoder = {

     .name           = "rawvideo",

     .long_name      = NULL_IF_CONFIG_SMALL("raw video"),

     .type           = AVMEDIA_TYPE_VIDEO,

     .id             = AV_CODEC_ID_RAWVIDEO,

     .priv_data_size = sizeof(AVFrame),

     .init           = raw_encode_init,

     .encode2        = raw_encode,

 };