mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-21 06:50:44 +00:00
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*
|
|
* RV20 encoder
|
|
* Copyright (c) 2000,2001 Fabrice Bellard
|
|
* Copyright (c) 2002-2004 Michael Niedermayer
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* RV20 encoder
|
|
*/
|
|
|
|
#include "mpegvideo.h"
|
|
#include "h263.h"
|
|
#include "put_bits.h"
|
|
|
|
void rv20_encode_picture_header(MpegEncContext *s, int picture_number){
|
|
put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ?
|
|
put_bits(&s->pb, 1, 0); /* unknown bit */
|
|
put_bits(&s->pb, 5, s->qscale);
|
|
|
|
put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known
|
|
s->mb_x= s->mb_y= 0;
|
|
ff_h263_encode_mba(s);
|
|
|
|
put_bits(&s->pb, 1, s->no_rounding);
|
|
|
|
assert(s->f_code == 1);
|
|
assert(s->unrestricted_mv == 0);
|
|
assert(s->alt_inter_vlc == 0);
|
|
assert(s->umvplus == 0);
|
|
assert(s->modified_quant==1);
|
|
assert(s->loop_filter==1);
|
|
|
|
s->h263_aic= s->pict_type == AV_PICTURE_TYPE_I;
|
|
if(s->h263_aic){
|
|
s->y_dc_scale_table=
|
|
s->c_dc_scale_table= ff_aic_dc_scale_table;
|
|
}else{
|
|
s->y_dc_scale_table=
|
|
s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
|
|
}
|
|
}
|
|
|
|
AVCodec ff_rv20_encoder = {
|
|
.name = "rv20",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = CODEC_ID_RV20,
|
|
.priv_data_size = sizeof(MpegEncContext),
|
|
.init = MPV_encode_init,
|
|
.encode = MPV_encode_picture,
|
|
.close = MPV_encode_end,
|
|
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
|
|
.long_name= NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
|
|
};
|