/*
  * v408 encoder
  *
  * Copyright (c) 2012 Carl Eugen Hoyos
  *
  * 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
  */
 
 #include "libavutil/intreadwrite.h"
 #include "avcodec.h"

 #include "internal.h"

 
 static av_cold int v408_encode_init(AVCodecContext *avctx)
 {
     avctx->coded_frame = avcodec_alloc_frame();
 
     if (!avctx->coded_frame) {
         av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
         return AVERROR(ENOMEM);
     }
 
     return 0;
 }
 

 static int v408_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                              const AVFrame *pic, int *got_packet)

 {

     uint8_t *dst;

     uint8_t *y, *u, *v, *a;

     int i, j, ret;

     if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4)) < 0)

         return ret;
     dst = pkt->data;

 
     avctx->coded_frame->key_frame = 1;
     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
 
     y = pic->data[0];
     u = pic->data[1];
     v = pic->data[2];
     a = pic->data[3];
 
     for (i = 0; i < avctx->height; i++) {
         for (j = 0; j < avctx->width; j++) {

            if (avctx->codec_id==AV_CODEC_ID_AYUV) {

                 *dst++ = v[j];
                 *dst++ = u[j];
                 *dst++ = y[j];
                 *dst++ = a[j];
             } else {
                 *dst++ = u[j];
                 *dst++ = y[j];
                 *dst++ = v[j];
                 *dst++ = a[j];
             }
         }
         y += pic->linesize[0];
         u += pic->linesize[1];
         v += pic->linesize[2];
         a += pic->linesize[3];
     }
 

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

 }
 
 static av_cold int v408_encode_close(AVCodecContext *avctx)
 {
     av_freep(&avctx->coded_frame);
 
     return 0;
 }
 

 #if CONFIG_AYUV_ENCODER

 AVCodec ff_ayuv_encoder = {
     .name         = "ayuv",

     .long_name    = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),

     .type         = AVMEDIA_TYPE_VIDEO,

     .id           = AV_CODEC_ID_AYUV,

     .init         = v408_encode_init,

     .encode2      = v408_encode_frame,

     .close        = v408_encode_close,

     .pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },

 };

 #endif
 #if CONFIG_V408_ENCODER

 AVCodec ff_v408_encoder = {
     .name         = "v408",

     .long_name    = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),

     .type         = AVMEDIA_TYPE_VIDEO,

     .id           = AV_CODEC_ID_V408,

     .init         = v408_encode_init,

     .encode2      = v408_encode_frame,

     .close        = v408_encode_close,

     .pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },

 };

 #endif