/*

 * v308 decoder

 * Copyright (c) 2011 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 "avcodec.h"

#include "codec_internal.h"

#include "decode.h"

static av_cold int v308_decode_init(AVCodecContext *avctx)

{

    avctx->pix_fmt = AV_PIX_FMT_YUV444P;

    if (avctx->width & 1)

        av_log(avctx, AV_LOG_WARNING, "v308 requires width to be even.\n");

    av_log(avctx, AV_LOG_WARNING, "This decoder is deprecated and will be removed.\n");

    return 0;

}

static int v308_decode_frame(AVCodecContext *avctx, AVFrame *pic,

                             int *got_frame, AVPacket *avpkt)

{

    const uint8_t *src = avpkt->data;

    uint8_t *y, *u, *v;

    int i, j, ret;

    if (avpkt->size < 3 * avctx->height * avctx->width) {

        av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");

        return AVERROR(EINVAL);

    }

    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)

        return ret;

    y = pic->data[0];

    u = pic->data[1];

    v = pic->data[2];

    for (i = 0; i < avctx->height; i++) {

        for (j = 0; j < avctx->width; j++) {

            v[j] = *src++;

            y[j] = *src++;

            u[j] = *src++;

        }

        y += pic->linesize[0];

        u += pic->linesize[1];

        v += pic->linesize[2];

    }

    *got_frame = 1;

    return avpkt->size;

}

const FFCodec ff_v308_decoder = {

    .p.name       = "v308",

    CODEC_LONG_NAME("Uncompressed packed 4:4:4"),

    .p.type       = AVMEDIA_TYPE_VIDEO,

    .p.id         = AV_CODEC_ID_V308,

    .init         = v308_decode_init,

    FF_CODEC_DECODE_CB(v308_decode_frame),

    .p.capabilities = AV_CODEC_CAP_DR1,

};