1/* 2 * RV20 encoder 3 * Copyright (c) 2000,2001 Fabrice Bellard 4 * Copyright (c) 2002-2004 Michael Niedermayer 5 * 6 * This file is part of FFmpeg. 7 * 8 * FFmpeg is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * FFmpeg is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with FFmpeg; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23/** 24 * @file 25 * RV20 encoder 26 */ 27 28#include "mpegvideo.h" 29#include "h263.h" 30#include "put_bits.h" 31 32void rv20_encode_picture_header(MpegEncContext *s, int picture_number){ 33 put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ? 34 put_bits(&s->pb, 1, 0); /* unknown bit */ 35 put_bits(&s->pb, 5, s->qscale); 36 37 put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known 38 s->mb_x= s->mb_y= 0; 39 ff_h263_encode_mba(s); 40 41 put_bits(&s->pb, 1, s->no_rounding); 42 43 assert(s->f_code == 1); 44 assert(s->unrestricted_mv == 1); 45 assert(s->alt_inter_vlc == 0); 46 assert(s->umvplus == 0); 47 assert(s->modified_quant==1); 48 assert(s->loop_filter==1); 49 50 s->h263_aic= s->pict_type == FF_I_TYPE; 51 if(s->h263_aic){ 52 s->y_dc_scale_table= 53 s->c_dc_scale_table= ff_aic_dc_scale_table; 54 }else{ 55 s->y_dc_scale_table= 56 s->c_dc_scale_table= ff_mpeg1_dc_scale_table; 57 } 58} 59 60AVCodec rv20_encoder = { 61 "rv20", 62 AVMEDIA_TYPE_VIDEO, 63 CODEC_ID_RV20, 64 sizeof(MpegEncContext), 65 MPV_encode_init, 66 MPV_encode_picture, 67 MPV_encode_end, 68 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, 69 .long_name= NULL_IF_CONFIG_SMALL("RealVideo 2.0"), 70}; 71