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/*
* RV10 encoder
* Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer
*
* 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
* RV10 encoder
*/
#include "mpegvideo.h"
#include "put_bits.h"
#include "rv10.h"
int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
{
int full_frame= 0;
avpriv_align_put_bits(&s->pb);
put_bits(&s->pb, 1, 1); /* marker */
put_bits(&s->pb, 1, (s->pict_type == AV_PICTURE_TYPE_P));
put_bits(&s->pb, 1, 0); /* not PB frame */
put_bits(&s->pb, 5, s->qscale);
if (s->pict_type == AV_PICTURE_TYPE_I) {
/* specific MPEG like DC coding not used */
}
/* if multiple packets per frame are sent, the position at which
to display the macroblocks is coded here */
if(!full_frame){
if (s->mb_width * s->mb_height >= (1U << 12)) {
avpriv_report_missing_feature(s->avctx, "Encoding frames with %d (>= 4096) macroblocks",
s->mb_width * s->mb_height);
return AVERROR(ENOSYS);
}
put_bits(&s->pb, 6, 0); /* mb_x */
put_bits(&s->pb, 6, 0); /* mb_y */
put_bits(&s->pb, 12, s->mb_width * s->mb_height);
}
put_bits(&s->pb, 3, 0); /* ignored */
return 0;
}
static const AVClass rv10_class = {
.class_name = "rv10 encoder",
.item_name = av_default_item_name,
.option = ff_mpv_generic_options,
.version = LIBAVUTIL_VERSION_INT,
};
AVCodec ff_rv10_encoder = {
.name = "rv10",
.long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_RV10,
.priv_data_size = sizeof(MpegEncContext),
.init = ff_mpv_encode_init,
.encode2 = ff_mpv_encode_picture,
.close = ff_mpv_encode_end,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
.priv_class = &rv10_class,
};
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