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rv20 (0x20201002) support

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Originally committed as revision 2948 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-04-02 21:04:56 +00:00
parent b44bdf7eec
commit a3c22fbca6
1 changed files with 10 additions and 2 deletions
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12
libavcodec/rv10.c
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@ -388,6 +388,10 @@ static int rv20_decode_picture_header(MpegEncContext *s)
// return -1;
}
seq= get_bits(&s->gb, 15);
if (s->avctx->sub_id == 0x20201002 && get_bits(&s->gb, 1)){
av_log(s->avctx, AV_LOG_ERROR, "unknown bit4 set\n");
// return -1;
}
mb_pos= get_bits(&s->gb, av_log2(s->mb_num-1)+1);
s->mb_x= mb_pos % s->mb_width;
s->mb_y= mb_pos / s->mb_width;
@ -395,7 +399,7 @@ static int rv20_decode_picture_header(MpegEncContext *s)
seq= get_bits(&s->gb, 8)*128;
mb_pos= ff_h263_decode_mba(s);
}
//printf("%d\n", seq);
//av_log(s->avctx, AV_LOG_DEBUG, "%d\n", seq);
seq |= s->time &~0x7FFF;
if(seq - s->time > 0x4000) seq -= 0x8000;
if(seq - s->time < -0x4000) seq += 0x8000;
@ -414,7 +418,10 @@ static int rv20_decode_picture_header(MpegEncContext *s)
}
}
// printf("%d %d %d %d %d\n", seq, (int)s->time, (int)s->last_non_b_time, s->pp_time, s->pb_time);
/*for(i=0; i<32; i++){
av_log(s->avctx, AV_LOG_DEBUG, "%d", get_bits1(&s->gb));
}
av_log(s->avctx, AV_LOG_DEBUG, "\n");*/
s->no_rounding= get_bits1(&s->gb);
s->f_code = 1;
@ -478,6 +485,7 @@ static int rv10_decode_init(AVCodecContext *avctx)
s->low_delay=1;
break;
case 0x20200002:
case 0x20201002:
case 0x30202002:
case 0x30203002:
s->low_delay=0;