case 0x20103001:
case 0x20103001:*/ case 0x20100000 ... 0x2019ffff:
static int rv10_decode_init(AVCodecContext *avctx){    MpegEncContext *s = avctx->priv_data;    static int done=0;    MPV_decode_defaults(s);        s->avctx= avctx;    s->out_format = FMT_H263;    s->codec_id= avctx->codec_id;    s->width = avctx->width;    s->height = avctx->height;    switch(avctx->sub_id){    case 0x10000000:        s->rv10_version= 0;        s->h263_long_vectors=0;        s->low_delay=1;        break;    case 0x10002000:        s->rv10_version= 3;        s->h263_long_vectors=1;        s->low_delay=1;        s->obmc=1;        break;    case 0x10003000:        s->rv10_version= 3;        s->h263_long_vectors=1;        s->low_delay=1;        break;    case 0x10003001:        s->rv10_version= 3;        s->h263_long_vectors=0;        s->low_delay=1;        break;    case 0x20001000:    case 0x20100001:    case 0x20101001:    case 0x20103001:        s->low_delay=1;        break;    case 0x20200002:    case 0x20201002:    case 0x20203002:    case 0x30202002:    case 0x30203002:        s->low_delay=0;        s->avctx->has_b_frames=1;        break;    default:        av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", avctx->sub_id);    }        if(avctx->debug & FF_DEBUG_PICT_INFO){        av_log(avctx, AV_LOG_DEBUG, "ver:%X ver0:%X\n", avctx->sub_id, avctx->extradata_size >= 4 ? ((uint32_t*)avctx->extradata)[0] : -1);    }        if (MPV_common_init(s) < 0)        return -1;    h263_decode_init_vlc(s);    /* init rv vlc */    if (!done) {        init_vlc(&rv_dc_lum, DC_VLC_BITS, 256,                  rv_lum_bits, 1, 1,                 rv_lum_code, 2, 2, 1);        init_vlc(&rv_dc_chrom, DC_VLC_BITS, 256,                  rv_chrom_bits, 1, 1,                 rv_chrom_code, 2, 2, 1);        done = 1;    }        avctx->pix_fmt = PIX_FMT_YUV420P;    return 0;}