/* * RV20 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 * RV20 encoder */ #include "codec_internal.h" #include "mpegvideo.h" #include "mpegvideodata.h" #include "mpegvideoenc.h" #include "h263data.h" #include "h263enc.h" #include "put_bits.h" #include "rv10enc.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); av_assert0(s->f_code == 1); av_assert0(s->unrestricted_mv == 0); av_assert0(s->alt_inter_vlc == 0); av_assert0(s->umvplus == 0); av_assert0(s->modified_quant==1); av_assert0(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; } } const FFCodec ff_rv20_encoder = { .p.name = "rv20", .p.long_name = NULL_IF_CONFIG_SMALL("RealVideo 2.0"), .p.type = AVMEDIA_TYPE_VIDEO, .p.id = AV_CODEC_ID_RV20, .p.priv_class = &ff_mpv_enc_class, .priv_data_size = sizeof(MpegEncContext), .init = ff_mpv_encode_init, .encode2 = ff_mpv_encode_picture, .close = ff_mpv_encode_end, .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP, .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, };