[deb_ffmpeg.git] / ffmpeg / libavcodec / rv20enc.c

/*
 * RV20 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
 * RV20 encoder
 */

#include "mpegvideo.h"
#include "h263.h"
#include "put_bits.h"

void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number){
    put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ?
    put_bits(&s->pb, 1, 0);     /* unknown bit */
    put_bits(&s->pb, 5, s->qscale);

    put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known
    s->mb_x= s->mb_y= 0;
    ff_h263_encode_mba(s);

    put_bits(&s->pb, 1, s->no_rounding);

    av_assert0(s->f_code == 1);
    av_assert0(s->unrestricted_mv == 0);
    av_assert0(s->alt_inter_vlc == 0);
    av_assert0(s->umvplus == 0);
    av_assert0(s->modified_quant==1);
    av_assert0(s->loop_filter==1);

    s->h263_aic= s->pict_type == AV_PICTURE_TYPE_I;
    if(s->h263_aic){
        s->y_dc_scale_table=
        s->c_dc_scale_table= ff_aic_dc_scale_table;
    }else{
        s->y_dc_scale_table=
        s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
    }
}

FF_MPV_GENERIC_CLASS(rv20)

AVCodec ff_rv20_encoder = {
    .name           = "rv20",
    .long_name      = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_RV20,
    .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     = &rv20_class,
};
Commit	Line	Data
	1	/*
	2	* RV20 encoder
	3	* Copyright (c) 2000,2001 Fabrice Bellard
	4	* Copyright (c) 2002-2004 Michael Niedermayer
	5	*
	6	* This file is part of FFmpeg.
	7	*
	8	* FFmpeg is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU Lesser General Public
	10	* License as published by the Free Software Foundation; either
	11	* version 2.1 of the License, or (at your option) any later version.
	12	*
	13	* FFmpeg is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* Lesser General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU Lesser General Public
	19	* License along with FFmpeg; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	21	*/
	22
	23	/**
	24	* @file
	25	* RV20 encoder
	26	*/
	27
	28	#include "mpegvideo.h"
	29	#include "h263.h"
	30	#include "put_bits.h"
	31
	32	void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number){
	33	put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ?
	34	put_bits(&s->pb, 1, 0); /* unknown bit */
	35	put_bits(&s->pb, 5, s->qscale);
	36
	37	put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known
	38	s->mb_x= s->mb_y= 0;
	39	ff_h263_encode_mba(s);
	40
	41	put_bits(&s->pb, 1, s->no_rounding);
	42
	43	av_assert0(s->f_code == 1);
	44	av_assert0(s->unrestricted_mv == 0);
	45	av_assert0(s->alt_inter_vlc == 0);
	46	av_assert0(s->umvplus == 0);
	47	av_assert0(s->modified_quant==1);
	48	av_assert0(s->loop_filter==1);
	49
	50	s->h263_aic= s->pict_type == AV_PICTURE_TYPE_I;
	51	if(s->h263_aic){
	52	s->y_dc_scale_table=
	53	s->c_dc_scale_table= ff_aic_dc_scale_table;
	54	}else{
	55	s->y_dc_scale_table=
	56	s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
	57	}
	58	}
	59
	60	FF_MPV_GENERIC_CLASS(rv20)
	61
	62	AVCodec ff_rv20_encoder = {
	63	.name = "rv20",
	64	.long_name = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
	65	.type = AVMEDIA_TYPE_VIDEO,
	66	.id = AV_CODEC_ID_RV20,
	67	.priv_data_size = sizeof(MpegEncContext),
	68	.init = ff_mpv_encode_init,
	69	.encode2 = ff_mpv_encode_picture,
	70	.close = ff_mpv_encode_end,
	71	.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
	72	.priv_class = &rv20_class,
	73	};