mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-12 19:18:44 +02:00
fea1f42e5f
This already makes several encoders (namely FLV, H.263, H.263+ and
RealVideo 1.0 and 2.0 and SVQ1) that use this init-threadsafe.
It also makes the Snow encoder init-threadsafe; it was already marked
as such since commit d49210788b, because
it was thought to be harmless if one and the same object was
initialized by multiple threads at the same time.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/*
|
|
* 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;
|
|
|
|
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_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
|
|
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
|
|
.priv_class = &rv10_class,
|
|
};
|