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81 lines
2.5 KiB
81 lines
2.5 KiB
/* |
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* RV20 encoder |
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* Copyright (c) 2000,2001 Fabrice Bellard |
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* Copyright (c) 2002-2004 Michael Niedermayer |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* RV20 encoder |
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*/ |
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#include "mpegvideo.h" |
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#include "mpegvideodata.h" |
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#include "h263.h" |
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#include "h263data.h" |
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#include "put_bits.h" |
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#include "rv10.h" |
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void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number){ |
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put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ? |
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put_bits(&s->pb, 1, 0); /* unknown bit */ |
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put_bits(&s->pb, 5, s->qscale); |
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put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known |
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s->mb_x= s->mb_y= 0; |
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ff_h263_encode_mba(s); |
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put_bits(&s->pb, 1, s->no_rounding); |
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av_assert0(s->f_code == 1); |
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av_assert0(s->unrestricted_mv == 0); |
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av_assert0(s->alt_inter_vlc == 0); |
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av_assert0(s->umvplus == 0); |
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av_assert0(s->modified_quant==1); |
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av_assert0(s->loop_filter==1); |
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s->h263_aic= s->pict_type == AV_PICTURE_TYPE_I; |
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if(s->h263_aic){ |
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s->y_dc_scale_table= |
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s->c_dc_scale_table= ff_aic_dc_scale_table; |
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}else{ |
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s->y_dc_scale_table= |
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s->c_dc_scale_table= ff_mpeg1_dc_scale_table; |
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} |
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} |
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static const AVClass rv20_class = { |
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.class_name = "rv20 encoder", |
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.item_name = av_default_item_name, |
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.option = ff_mpv_generic_options, |
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.version = LIBAVUTIL_VERSION_INT, |
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}; |
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AVCodec ff_rv20_encoder = { |
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.name = "rv20", |
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.long_name = NULL_IF_CONFIG_SMALL("RealVideo 2.0"), |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = AV_CODEC_ID_RV20, |
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.priv_data_size = sizeof(MpegEncContext), |
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.init = ff_mpv_encode_init, |
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.encode2 = ff_mpv_encode_picture, |
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.close = ff_mpv_encode_end, |
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.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, |
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.priv_class = &rv20_class, |
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};
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