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/* |
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* RV10 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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* RV10 encoder |
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*/ |
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#include "mpegvideo.h" |
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#include "put_bits.h" |
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#include "rv10.h" |
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int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number) |
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{ |
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int full_frame= 0; |
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avpriv_align_put_bits(&s->pb); |
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put_bits(&s->pb, 1, 1); /* marker */ |
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put_bits(&s->pb, 1, (s->pict_type == AV_PICTURE_TYPE_P)); |
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put_bits(&s->pb, 1, 0); /* not PB-mframe */ |
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put_bits(&s->pb, 5, s->qscale); |
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if (s->pict_type == AV_PICTURE_TYPE_I) { |
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/* specific MPEG like DC coding not used */ |
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} |
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/* if multiple packets per frame are sent, the position at which |
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to display the macroblocks is coded here */ |
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✓✗ |
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if(!full_frame){ |
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✗✓ |
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if (s->mb_width * s->mb_height >= (1U << 12)) { |
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avpriv_report_missing_feature(s->avctx, "Encoding frames with %d (>= 4096) macroblocks", |
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s->mb_width * s->mb_height); |
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return AVERROR(ENOSYS); |
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} |
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put_bits(&s->pb, 6, 0); /* mb_x */ |
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put_bits(&s->pb, 6, 0); /* mb_y */ |
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put_bits(&s->pb, 12, s->mb_width * s->mb_height); |
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} |
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put_bits(&s->pb, 3, 0); /* ignored */ |
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return 0; |
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} |
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static const AVClass rv10_class = { |
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.class_name = "rv10 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_rv10_encoder = { |
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.name = "rv10", |
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.long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"), |
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.type = AVMEDIA_TYPE_VIDEO, |
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.id = AV_CODEC_ID_RV10, |
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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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.caps_internal = FF_CODEC_CAP_INIT_CLEANUP, |
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.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, |
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.priv_class = &rv10_class, |
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}; |