/*

 * 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 "codec_internal.h"

#include "encode.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);

    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_get_encode_buffer(avctx, pkt, ret, 0)) < 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);

        }

    }

    *got_packet = 1;

    return 0;

}

const FFCodec ff_rawvideo_encoder = {

    .p.name         = "rawvideo",

    CODEC_LONG_NAME("raw video"),

    .p.type         = AVMEDIA_TYPE_VIDEO,

    .p.id           = AV_CODEC_ID_RAWVIDEO,

    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |

                      AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,

    .init           = raw_encode_init,

    FF_CODEC_ENCODE_CB(raw_encode),

};