mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
f1fa1eed2a
Having this macro in an header only facilitates the use of such header. The code increase is minimal and files have one less dependency on mpegvideo.h.
85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/*
|
|
* RV10 encoder
|
|
* Copyright (c) 2000,2001 Fabrice Bellard
|
|
* Copyright (c) 2002-2004 Michael Niedermayer
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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 frame */
|
|
|
|
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,
|
|
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
|
|
.priv_class = &rv10_class,
|
|
};
|