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/*
* 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 "libavutil/pixdesc.h"
#include "libavutil/intreadwrite.h"
static av_cold int raw_init_encoder(AVCodecContext *avctx)
{
avctx->coded_frame = (AVFrame *)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(&av_pix_fmt_descriptors[avctx->pix_fmt]);
if(!avctx->codec_tag)
avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt);
return 0;
}
static int raw_encode(AVCodecContext *avctx,
unsigned char *frame, int buf_size, void *data)
{
int ret = avpicture_layout((AVPicture *)data, avctx->pix_fmt, avctx->width,
avctx->height, frame, buf_size);
if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 &&
avctx->pix_fmt == PIX_FMT_YUYV422) {
int x;
for(x = 1; x < avctx->height*avctx->width*2; x += 2)
frame[x] ^= 0x80;
}
return ret;
}
AVCodec ff_rawvideo_encoder = {
.name = "rawvideo",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_RAWVIDEO,
.priv_data_size = sizeof(AVFrame),
.init = raw_init_encoder,
.encode = raw_encode,
.long_name = NULL_IF_CONFIG_SMALL("raw video"),
};
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