mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
2.2 KiB
70 lines
2.2 KiB
/* |
|
* 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 ff_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 = ff_MPV_encode_init, |
|
.encode2 = ff_MPV_encode_picture, |
|
.close = ff_MPV_encode_end, |
|
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, |
|
.long_name= NULL_IF_CONFIG_SMALL("RealVideo 2.0"), |
|
};
|
|
|