/* * RV10 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 * RV10 encoder */ #include "codec_internal.h" #include "mpegvideo.h" #include "mpegvideoenc.h" #include "put_bits.h" #include "rv10enc.h" int ff_rv10_encode_picture_header(MpegEncContext *s) { int full_frame= 0; align_put_bits(&s->pb); put_bits(&s->pb, 1, 1); /* marker */ put_bits(&s->pb, 1, (s->pict_type == AV_PICTURE_TYPE_P)); put_bits(&s->pb, 1, 0); /* not PB-mframe */ put_bits(&s->pb, 5, s->qscale); if (s->pict_type == AV_PICTURE_TYPE_I) { /* specific MPEG like DC coding not used */ } /* if multiple packets per frame are sent, the position at which to display the macroblocks is coded here */ if(!full_frame){ if (s->mb_width * s->mb_height >= (1U << 12)) { avpriv_report_missing_feature(s->avctx, "Encoding frames with %d (>= 4096) macroblocks", s->mb_width * s->mb_height); return AVERROR(ENOSYS); } put_bits(&s->pb, 6, 0); /* mb_x */ put_bits(&s->pb, 6, 0); /* mb_y */ put_bits(&s->pb, 12, s->mb_width * s->mb_height); } put_bits(&s->pb, 3, 0); /* ignored */ return 0; } const FFCodec ff_rv10_encoder = { .p.name = "rv10", CODEC_LONG_NAME("RealVideo 1.0"), .p.type = AVMEDIA_TYPE_VIDEO, .p.id = AV_CODEC_ID_RV10, .p.priv_class = &ff_mpv_enc_class, .p.capabilities = AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE, .priv_data_size = sizeof(MpegEncContext), .init = ff_mpv_encode_init, FF_CODEC_ENCODE_CB(ff_mpv_encode_picture), .close = ff_mpv_encode_end, .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, };