libavcodec/rv10enc.c

   1 /*
   2  * RV10 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 libavcodec/rv10enc.c
  25  * RV10 encoder
  26  */
  27
  28 #include "mpegvideo.h"
  29 #include "put_bits.h"
  30
  31 void rv10_encode_picture_header(MpegEncContext *s, int picture_number)
  32 {
  33     int full_frame= 0;
  34
  35     align_put_bits(&s->pb);
  36
  37     put_bits(&s->pb, 1, 1);     /* marker */
  38
  39     put_bits(&s->pb, 1, (s->pict_type == FF_P_TYPE));
  40
  41     put_bits(&s->pb, 1, 0);     /* not PB frame */
  42
  43     put_bits(&s->pb, 5, s->qscale);
  44
  45     if (s->pict_type == FF_I_TYPE) {
  46         /* specific MPEG like DC coding not used */
  47     }
  48     /* if multiple packets per frame are sent, the position at which
  49        to display the macroblocks is coded here */
  50     if(!full_frame){
  51         put_bits(&s->pb, 6, 0); /* mb_x */
  52         put_bits(&s->pb, 6, 0); /* mb_y */
  53         put_bits(&s->pb, 12, s->mb_width * s->mb_height);
  54     }
  55
  56     put_bits(&s->pb, 3, 0);     /* ignored */
  57 }
  58
  59 AVCodec rv10_encoder = {
  60     "rv10",
  61     CODEC_TYPE_VIDEO,
  62     CODEC_ID_RV10,
  63     sizeof(MpegEncContext),
  64     MPV_encode_init,
  65     MPV_encode_picture,
  66     MPV_encode_end,
  67     .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
  68     .long_name= NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
  69 };