86 lines
2.7 KiB
C
Executable File
86 lines
2.7 KiB
C
Executable File
/*
|
|
* 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 "mpegvideo.h"
|
|
#include "put_bits.h"
|
|
#include "rv10.h"
|
|
|
|
int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
|
|
{
|
|
int full_frame= 0;
|
|
|
|
avpriv_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;
|
|
}
|
|
|
|
static const AVClass rv10_class = {
|
|
.class_name = "rv10 encoder",
|
|
.item_name = av_default_item_name,
|
|
.option = ff_mpv_generic_options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
AVCodec ff_rv10_encoder = {
|
|
.name = "rv10",
|
|
.long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_RV10,
|
|
.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_CLEANUP,
|
|
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
|
|
.priv_class = &rv10_class,
|
|
};
|