/*
  * 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/imgutils.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);
 

 #if FF_API_CODED_FRAME
 FF_DISABLE_DEPRECATION_WARNINGS

     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;

 FF_ENABLE_DEPRECATION_WARNINGS
 #endif

     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);

     avctx->bit_rate = ff_guess_coded_bitrate(avctx);
 

     return 0;
 }
 

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

 {

     int ret = av_image_get_buffer_size(frame->format,
                                        frame->width, frame->height, 1);

 
     if (ret < 0)
         return ret;
 

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

         return ret;

     if ((ret = av_image_copy_to_buffer(pkt->data, pkt->size,

                                        (const uint8_t **)frame->data, frame->linesize,

                                        frame->format,
                                        frame->width, frame->height, 1)) < 0)

         return ret;

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

        frame->format   == AV_PIX_FMT_YUYV422) {

         int x;

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

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

     } else if (avctx->codec_tag == AV_RL32("b64a") && ret > 0 &&
         frame->format == AV_PIX_FMT_RGBA64BE) {
         uint64_t v;
         int x;
         for (x = 0; x < frame->height * frame->width; x++) {
             v = AV_RB64(&pkt->data[8 * x]);
             AV_WB64(&pkt->data[8 * x], v << 48 | v >> 16);
         }

     }

     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,

     .init           = raw_encode_init,

     .encode2        = raw_encode,

 };