split wmv2 encoder and decoder in their own files

Originally committed as revision 11091 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 2 insertions, 714 deletions

diff --git a/libavcodec/wmv2.c b/libavcodec/wmv2.c
index 365f5654f8..d634a62bd9 100644
--- a/libavcodec/wmv2.c
+++ b/libavcodec/wmv2.c
@@ -18,576 +18,20 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-/**
- * @file wmv2.c
- * wmv2 codec.
- */
-
 #include "avcodec.h"
-#include "dsputil.h"
 #include "mpegvideo.h"
-#include "msmpeg4.h"
 #include "msmpeg4data.h"
 #include "simple_idct.h"
-#include "intrax8.h"
-
-#define SKIP_TYPE_NONE 0
-#define SKIP_TYPE_MPEG 1
-#define SKIP_TYPE_ROW  2
-#define SKIP_TYPE_COL  3
-
+#include "wmv2.h"
 
-typedef struct Wmv2Context{
-    MpegEncContext s;
-    IntraX8Context x8;
-    int j_type_bit;
-    int j_type;
-    int abt_flag;
-    int abt_type;
-    int abt_type_table[6];
-    int per_mb_abt;
-    int per_block_abt;
-    int mspel_bit;
-    int cbp_table_index;
-    int top_left_mv_flag;
-    int per_mb_rl_bit;
-    int skip_type;
-    int hshift;
 
-    ScanTable abt_scantable[2];
-    DECLARE_ALIGNED_8(DCTELEM, abt_block2[6][64]);
-}Wmv2Context;
-
-static void wmv2_common_init(Wmv2Context * w){
+void ff_wmv2_common_init(Wmv2Context * w){
     MpegEncContext * const s= &w->s;
 
     ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[0], wmv2_scantableA);
     ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[1], wmv2_scantableB);
 }
 
-#ifdef CONFIG_WMV2_ENCODER
-
-static int encode_ext_header(Wmv2Context *w){
-    MpegEncContext * const s= &w->s;
-    PutBitContext pb;
-    int code;
-
-    init_put_bits(&pb, s->avctx->extradata, s->avctx->extradata_size);
-
-    put_bits(&pb, 5, s->avctx->time_base.den / s->avctx->time_base.num); //yes 29.97 -> 29
-    put_bits(&pb, 11, FFMIN(s->bit_rate/1024, 2047));
-
-    put_bits(&pb, 1, w->mspel_bit=1);
-    put_bits(&pb, 1, s->loop_filter);
-    put_bits(&pb, 1, w->abt_flag=1);
-    put_bits(&pb, 1, w->j_type_bit=1);
-    put_bits(&pb, 1, w->top_left_mv_flag=0);
-    put_bits(&pb, 1, w->per_mb_rl_bit=1);
-    put_bits(&pb, 3, code=1);
-
-    flush_put_bits(&pb);
-
-    s->slice_height = s->mb_height / code;
-
-    return 0;
-}
-
-static int wmv2_encode_init(AVCodecContext *avctx){
-    Wmv2Context * const w= avctx->priv_data;
-
-    if(MPV_encode_init(avctx) < 0)
-        return -1;
-
-    wmv2_common_init(w);
-
-    avctx->extradata_size= 4;
-    avctx->extradata= av_mallocz(avctx->extradata_size + 10);
-    encode_ext_header(w);
-
-    return 0;
-}
-
-#if 0 /* unused, remove? */
-static int wmv2_encode_end(AVCodecContext *avctx){
-
-    if(MPV_encode_end(avctx) < 0)
-        return -1;
-
-    avctx->extradata_size= 0;
-    av_freep(&avctx->extradata);
-
-    return 0;
-}
-#endif
-
-int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number)
-{
-    Wmv2Context * const w= (Wmv2Context*)s;
-
-    put_bits(&s->pb, 1, s->pict_type - 1);
-    if(s->pict_type == I_TYPE){
-        put_bits(&s->pb, 7, 0);
-    }
-    put_bits(&s->pb, 5, s->qscale);
-
-    s->dc_table_index = 1;
-    s->mv_table_index = 1; /* only if P frame */
-//    s->use_skip_mb_code = 1; /* only if P frame */
-    s->per_mb_rl_table = 0;
-    s->mspel= 0;
-    w->per_mb_abt=0;
-    w->abt_type=0;
-    w->j_type=0;
-
-    assert(s->flipflop_rounding);
-
-    if (s->pict_type == I_TYPE) {
-        assert(s->no_rounding==1);
-        if(w->j_type_bit) put_bits(&s->pb, 1, w->j_type);
-
-        if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table);
-
-        if(!s->per_mb_rl_table){
-            ff_msmpeg4_code012(&s->pb, s->rl_chroma_table_index);
-            ff_msmpeg4_code012(&s->pb, s->rl_table_index);
-        }
-
-        put_bits(&s->pb, 1, s->dc_table_index);
-
-        s->inter_intra_pred= 0;
-    }else{
-        int cbp_index;
-
-        put_bits(&s->pb, 2, SKIP_TYPE_NONE);
-
-        ff_msmpeg4_code012(&s->pb, cbp_index=0);
-        if(s->qscale <= 10){
-            int map[3]= {0,2,1};
-            w->cbp_table_index= map[cbp_index];
-        }else if(s->qscale <= 20){
-            int map[3]= {1,0,2};
-            w->cbp_table_index= map[cbp_index];
-        }else{
-            int map[3]= {2,1,0};
-            w->cbp_table_index= map[cbp_index];
-        }
-
-        if(w->mspel_bit) put_bits(&s->pb, 1, s->mspel);
-
-        if(w->abt_flag){
-            put_bits(&s->pb, 1, w->per_mb_abt^1);
-            if(!w->per_mb_abt){
-                ff_msmpeg4_code012(&s->pb, w->abt_type);
-            }
-        }
-
-        if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table);
-
-        if(!s->per_mb_rl_table){
-            ff_msmpeg4_code012(&s->pb, s->rl_table_index);
-            s->rl_chroma_table_index = s->rl_table_index;
-        }
-        put_bits(&s->pb, 1, s->dc_table_index);
-        put_bits(&s->pb, 1, s->mv_table_index);
-
-        s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE);
-    }
-    s->esc3_level_length= 0;
-    s->esc3_run_length= 0;
-
-    return 0;
-}
-
-/* Nearly identical to wmv1 but that is just because we do not use the
- * useless M$ crap features. It is duplicated here in case someone wants
- * to add support for these crap features. */
-void ff_wmv2_encode_mb(MpegEncContext * s,
-                       DCTELEM block[6][64],
-                       int motion_x, int motion_y)
-{
-    Wmv2Context * const w= (Wmv2Context*)s;
-    int cbp, coded_cbp, i;
-    int pred_x, pred_y;
-    uint8_t *coded_block;
-
-    ff_msmpeg4_handle_slices(s);
-
-    if (!s->mb_intra) {
-        /* compute cbp */
-        cbp = 0;
-        for (i = 0; i < 6; i++) {
-            if (s->block_last_index[i] >= 0)
-                cbp |= 1 << (5 - i);
-        }
-
-        put_bits(&s->pb,
-                 wmv2_inter_table[w->cbp_table_index][cbp + 64][1],
-                 wmv2_inter_table[w->cbp_table_index][cbp + 64][0]);
-
-        /* motion vector */
-        h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
-        ff_msmpeg4_encode_motion(s, motion_x - pred_x,
-                              motion_y - pred_y);
-    } else {
-        /* compute cbp */
-        cbp = 0;
-        coded_cbp = 0;
-        for (i = 0; i < 6; i++) {
-            int val, pred;
-            val = (s->block_last_index[i] >= 1);
-            cbp |= val << (5 - i);
-            if (i < 4) {
-                /* predict value for close blocks only for luma */
-                pred = ff_msmpeg4_coded_block_pred(s, i, &coded_block);
-                *coded_block = val;
-                val = val ^ pred;
-            }
-            coded_cbp |= val << (5 - i);
-        }
-#if 0
-        if (coded_cbp)
-            printf("cbp=%x %x\n", cbp, coded_cbp);
-#endif
-
-        if (s->pict_type == I_TYPE) {
-            put_bits(&s->pb,
-                     ff_msmp4_mb_i_table[coded_cbp][1], ff_msmp4_mb_i_table[coded_cbp][0]);
-        } else {
-            put_bits(&s->pb,
-                     wmv2_inter_table[w->cbp_table_index][cbp][1],
-                     wmv2_inter_table[w->cbp_table_index][cbp][0]);
-        }
-        put_bits(&s->pb, 1, 0);         /* no AC prediction yet */
-        if(s->inter_intra_pred){
-            s->h263_aic_dir=0;
-            put_bits(&s->pb, table_inter_intra[s->h263_aic_dir][1], table_inter_intra[s->h263_aic_dir][0]);
-        }
-    }
-
-    for (i = 0; i < 6; i++) {
-        ff_msmpeg4_encode_block(s, block[i], i);
-    }
-}
-#endif //CONFIG_WMV2_ENCODER
-
-static void parse_mb_skip(Wmv2Context * w){
-    int mb_x, mb_y;
-    MpegEncContext * const s= &w->s;
-    uint32_t * const mb_type= s->current_picture_ptr->mb_type;
-
-    w->skip_type= get_bits(&s->gb, 2);
-    switch(w->skip_type){
-    case SKIP_TYPE_NONE:
-        for(mb_y=0; mb_y<s->mb_height; mb_y++){
-            for(mb_x=0; mb_x<s->mb_width; mb_x++){
-                mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_16x16 | MB_TYPE_L0;
-            }
-        }
-        break;
-    case SKIP_TYPE_MPEG:
-        for(mb_y=0; mb_y<s->mb_height; mb_y++){
-            for(mb_x=0; mb_x<s->mb_width; mb_x++){
-                mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
-            }
-        }
-        break;
-    case SKIP_TYPE_ROW:
-        for(mb_y=0; mb_y<s->mb_height; mb_y++){
-            if(get_bits1(&s->gb)){
-                for(mb_x=0; mb_x<s->mb_width; mb_x++){
-                    mb_type[mb_y*s->mb_stride + mb_x]=  MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
-                }
-            }else{
-                for(mb_x=0; mb_x<s->mb_width; mb_x++){
-                    mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
-                }
-            }
-        }
-        break;
-    case SKIP_TYPE_COL:
-        for(mb_x=0; mb_x<s->mb_width; mb_x++){
-            if(get_bits1(&s->gb)){
-                for(mb_y=0; mb_y<s->mb_height; mb_y++){
-                    mb_type[mb_y*s->mb_stride + mb_x]=  MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
-                }
-            }else{
-                for(mb_y=0; mb_y<s->mb_height; mb_y++){
-                    mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
-                }
-            }
-        }
-        break;
-    }
-}
-
-static int decode_ext_header(Wmv2Context *w){
-    MpegEncContext * const s= &w->s;
-    GetBitContext gb;
-    int fps;
-    int code;
-
-    if(s->avctx->extradata_size<4) return -1;
-
-    init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8);
-
-    fps                = get_bits(&gb, 5);
-    s->bit_rate        = get_bits(&gb, 11)*1024;
-    w->mspel_bit       = get_bits1(&gb);
-    s->loop_filter     = get_bits1(&gb);
-    w->abt_flag        = get_bits1(&gb);
-    w->j_type_bit      = get_bits1(&gb);
-    w->top_left_mv_flag= get_bits1(&gb);
-    w->per_mb_rl_bit   = get_bits1(&gb);
-    code               = get_bits(&gb, 3);
-
-    if(code==0) return -1;
-
-    s->slice_height = s->mb_height / code;
-
-    if(s->avctx->debug&FF_DEBUG_PICT_INFO){
-        av_log(s->avctx, AV_LOG_DEBUG, "fps:%d, br:%d, qpbit:%d, abt_flag:%d, j_type_bit:%d, tl_mv_flag:%d, mbrl_bit:%d, code:%d, loop_filter:%d, slices:%d\n",
-        fps, s->bit_rate, w->mspel_bit, w->abt_flag, w->j_type_bit, w->top_left_mv_flag, w->per_mb_rl_bit, code, s->loop_filter,
-        code);
-    }
-    return 0;
-}
-
-int ff_wmv2_decode_picture_header(MpegEncContext * s)
-{
-    Wmv2Context * const w= (Wmv2Context*)s;
-    int code;
-
-#if 0
-{
-int i;
-for(i=0; i<s->gb.size*8; i++)
-    printf("%d", get_bits1(&s->gb));
-//    get_bits1(&s->gb);
-printf("END\n");
-return -1;
-}
-#endif
-    if(s->picture_number==0)
-        decode_ext_header(w);
-
-    s->pict_type = get_bits1(&s->gb) + 1;
-    if(s->pict_type == I_TYPE){
-        code = get_bits(&s->gb, 7);
-        av_log(s->avctx, AV_LOG_DEBUG, "I7:%X/\n", code);
-    }
-    s->chroma_qscale= s->qscale = get_bits(&s->gb, 5);
-    if(s->qscale < 0)
-       return -1;
-
-    return 0;
-}
-
-int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s)
-{
-    Wmv2Context * const w= (Wmv2Context*)s;
-
-    if (s->pict_type == I_TYPE) {
-        if(w->j_type_bit) w->j_type= get_bits1(&s->gb);
-        else              w->j_type= 0; //FIXME check
-
-        if(!w->j_type){
-            if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb);
-            else                 s->per_mb_rl_table= 0;
-
-            if(!s->per_mb_rl_table){
-                s->rl_chroma_table_index = decode012(&s->gb);
-                s->rl_table_index = decode012(&s->gb);
-            }
-
-            s->dc_table_index = get_bits1(&s->gb);
-        }
-        s->inter_intra_pred= 0;
-        s->no_rounding = 1;
-        if(s->avctx->debug&FF_DEBUG_PICT_INFO){
-            av_log(s->avctx, AV_LOG_DEBUG, "qscale:%d rlc:%d rl:%d dc:%d mbrl:%d j_type:%d \n",
-                s->qscale,
-                s->rl_chroma_table_index,
-                s->rl_table_index,
-                s->dc_table_index,
-                s->per_mb_rl_table,
-                w->j_type);
-        }
-    }else{
-        int cbp_index;
-        w->j_type=0;
-
-        parse_mb_skip(w);
-        cbp_index= decode012(&s->gb);
-        if(s->qscale <= 10){
-            int map[3]= {0,2,1};
-            w->cbp_table_index= map[cbp_index];
-        }else if(s->qscale <= 20){
-            int map[3]= {1,0,2};
-            w->cbp_table_index= map[cbp_index];
-        }else{
-            int map[3]= {2,1,0};
-            w->cbp_table_index= map[cbp_index];
-        }
-
-        if(w->mspel_bit) s->mspel= get_bits1(&s->gb);
-        else             s->mspel= 0; //FIXME check
-
-        if(w->abt_flag){
-            w->per_mb_abt= get_bits1(&s->gb)^1;
-            if(!w->per_mb_abt){
-                w->abt_type= decode012(&s->gb);
-            }
-        }
-
-        if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb);
-        else                 s->per_mb_rl_table= 0;
-
-        if(!s->per_mb_rl_table){
-            s->rl_table_index = decode012(&s->gb);
-            s->rl_chroma_table_index = s->rl_table_index;
-        }
-
-        s->dc_table_index = get_bits1(&s->gb);
-        s->mv_table_index = get_bits1(&s->gb);
-
-        s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE);
-        s->no_rounding ^= 1;
-
-        if(s->avctx->debug&FF_DEBUG_PICT_INFO){
-            av_log(s->avctx, AV_LOG_DEBUG, "rl:%d rlc:%d dc:%d mv:%d mbrl:%d qp:%d mspel:%d per_mb_abt:%d abt_type:%d cbp:%d ii:%d\n",
-                s->rl_table_index,
-                s->rl_chroma_table_index,
-                s->dc_table_index,
-                s->mv_table_index,
-                s->per_mb_rl_table,
-                s->qscale,
-                s->mspel,
-                w->per_mb_abt,
-                w->abt_type,
-                w->cbp_table_index,
-                s->inter_intra_pred);
-        }
-    }
-    s->esc3_level_length= 0;
-    s->esc3_run_length= 0;
-
-s->picture_number++; //FIXME ?
-
-
-    if(w->j_type){
-        ff_intrax8_decode_picture(&w->x8, 2*s->qscale, (s->qscale-1)|1 );
-        return 1;
-    }
-
-    return 0;
-}
-
-static inline int wmv2_decode_motion(Wmv2Context *w, int *mx_ptr, int *my_ptr){
-    MpegEncContext * const s= &w->s;
-    int ret;
-
-    ret= ff_msmpeg4_decode_motion(s, mx_ptr, my_ptr);
-
-    if(ret<0) return -1;
-
-    if((((*mx_ptr)|(*my_ptr)) & 1) && s->mspel)
-        w->hshift= get_bits1(&s->gb);
-    else
-        w->hshift= 0;
-
-//printf("%d %d  ", *mx_ptr, *my_ptr);
-
-    return 0;
-}
-
-static int16_t *wmv2_pred_motion(Wmv2Context *w, int *px, int *py){
-    MpegEncContext * const s= &w->s;
-    int xy, wrap, diff, type;
-    int16_t *A, *B, *C, *mot_val;
-
-    wrap = s->b8_stride;
-    xy = s->block_index[0];
-
-    mot_val = s->current_picture.motion_val[0][xy];
-
-    A = s->current_picture.motion_val[0][xy - 1];
-    B = s->current_picture.motion_val[0][xy - wrap];
-    C = s->current_picture.motion_val[0][xy + 2 - wrap];
-
-    if(s->mb_x && !s->first_slice_line && !s->mspel && w->top_left_mv_flag)
-        diff= FFMAX(FFABS(A[0] - B[0]), FFABS(A[1] - B[1]));
-    else
-        diff=0;
-
-    if(diff >= 8)
-        type= get_bits1(&s->gb);
-    else
-        type= 2;
-
-    if(type == 0){
-        *px= A[0];
-        *py= A[1];
-    }else if(type == 1){
-        *px= B[0];
-        *py= B[1];
-    }else{
-        /* special case for first (slice) line */
-        if (s->first_slice_line) {
-            *px = A[0];
-            *py = A[1];
-        } else {
-            *px = mid_pred(A[0], B[0], C[0]);
-            *py = mid_pred(A[1], B[1], C[1]);
-        }
-    }
-
-    return mot_val;
-}
-
-static inline int wmv2_decode_inter_block(Wmv2Context *w, DCTELEM *block, int n, int cbp){
-    MpegEncContext * const s= &w->s;
-    static const int sub_cbp_table[3]= {2,3,1};
-    int sub_cbp;
-
-    if(!cbp){
-        s->block_last_index[n] = -1;
-
-        return 0;
-    }
-
-    if(w->per_block_abt)
-        w->abt_type= decode012(&s->gb);
-#if 0
-    if(w->per_block_abt)
-        printf("B%d", w->abt_type);
-#endif
-    w->abt_type_table[n]= w->abt_type;
-
-    if(w->abt_type){
-//        const uint8_t *scantable= w->abt_scantable[w->abt_type-1].permutated;
-        const uint8_t *scantable= w->abt_scantable[w->abt_type-1].scantable;
-//        const uint8_t *scantable= w->abt_type-1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable;
-
-        sub_cbp= sub_cbp_table[ decode012(&s->gb) ];
-//        printf("S%d", sub_cbp);
-
-        if(sub_cbp&1){
-            if (ff_msmpeg4_decode_block(s, block, n, 1, scantable) < 0)
-                return -1;
-        }
-
-        if(sub_cbp&2){
-            if (ff_msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable) < 0)
-                return -1;
-        }
-        s->block_last_index[n] = 63;
-
-        return 0;
-    }else{
-        return ff_msmpeg4_decode_block(s, block, n, 1, s->inter_scantable.permutated);
-    }
-}
-
 static void wmv2_add_block(Wmv2Context *w, DCTELEM *block1, uint8_t *dst, int stride, int n){
     MpegEncContext * const s= &w->s;
 
@@ -713,159 +157,3 @@ void ff_mspel_motion(MpegEncContext *s,
     }
     pix_op[1][dxy](dest_cr, ptr, uvlinesize, h >> 1);
 }
-
-
-int ff_wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
-{
-    Wmv2Context * const w= (Wmv2Context*)s;
-    int cbp, code, i;
-    uint8_t *coded_val;
-
-    if(w->j_type) return 0;
-
-    if (s->pict_type == P_TYPE) {
-        if(IS_SKIP(s->current_picture.mb_type[s->mb_y * s->mb_stride + s->mb_x])){
-            /* skip mb */
-            s->mb_intra = 0;
-            for(i=0;i<6;i++)
-                s->block_last_index[i] = -1;
-            s->mv_dir = MV_DIR_FORWARD;
-            s->mv_type = MV_TYPE_16X16;
-            s->mv[0][0][0] = 0;
-            s->mv[0][0][1] = 0;
-            s->mb_skipped = 1;
-            w->hshift=0;
-            return 0;
-        }
-
-        code = get_vlc2(&s->gb, ff_mb_non_intra_vlc[w->cbp_table_index].table, MB_NON_INTRA_VLC_BITS, 3);
-        if (code < 0)
-            return -1;
-        s->mb_intra = (~code & 0x40) >> 6;
-
-        cbp = code & 0x3f;
-    } else {
-        s->mb_intra = 1;
-        code = get_vlc2(&s->gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
-        if (code < 0){
-            av_log(s->avctx, AV_LOG_ERROR, "II-cbp illegal at %d %d\n", s->mb_x, s->mb_y);
-            return -1;
-        }
-        /* predict coded block pattern */
-        cbp = 0;
-        for(i=0;i<6;i++) {
-            int val = ((code >> (5 - i)) & 1);
-            if (i < 4) {
-                int pred = ff_msmpeg4_coded_block_pred(s, i, &coded_val);
-                val = val ^ pred;
-                *coded_val = val;
-            }
-            cbp |= val << (5 - i);
-        }
-    }
-
-    if (!s->mb_intra) {
-        int mx, my;
-//printf("P at %d %d\n", s->mb_x, s->mb_y);
-        wmv2_pred_motion(w, &mx, &my);
-
-        if(cbp){
-            s->dsp.clear_blocks(s->block[0]);
-            if(s->per_mb_rl_table){
-                s->rl_table_index = decode012(&s->gb);
-                s->rl_chroma_table_index = s->rl_table_index;
-            }
-
-            if(w->abt_flag && w->per_mb_abt){
-                w->per_block_abt= get_bits1(&s->gb);
-                if(!w->per_block_abt)
-                    w->abt_type= decode012(&s->gb);
-            }else
-                w->per_block_abt=0;
-        }
-
-        if (wmv2_decode_motion(w, &mx, &my) < 0)
-            return -1;
-
-        s->mv_dir = MV_DIR_FORWARD;
-        s->mv_type = MV_TYPE_16X16;
-        s->mv[0][0][0] = mx;
-        s->mv[0][0][1] = my;
-
-        for (i = 0; i < 6; i++) {
-            if (wmv2_decode_inter_block(w, block[i], i, (cbp >> (5 - i)) & 1) < 0)
-            {
-                av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding inter block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
-                return -1;
-            }
-        }
-    } else {
-//if(s->pict_type==P_TYPE)
-//   printf("%d%d ", s->inter_intra_pred, cbp);
-//printf("I at %d %d %d %06X\n", s->mb_x, s->mb_y, ((cbp&3)? 1 : 0) +((cbp&0x3C)? 2 : 0), show_bits(&s->gb, 24));
-        s->ac_pred = get_bits1(&s->gb);
-        if(s->inter_intra_pred){
-            s->h263_aic_dir= get_vlc2(&s->gb, ff_inter_intra_vlc.table, INTER_INTRA_VLC_BITS, 1);
-//            printf("%d%d %d %d/", s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y);
-        }
-        if(s->per_mb_rl_table && cbp){
-            s->rl_table_index = decode012(&s->gb);
-            s->rl_chroma_table_index = s->rl_table_index;
-        }
-
-        s->dsp.clear_blocks(s->block[0]);
-        for (i = 0; i < 6; i++) {
-            if (ff_msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0)
-            {
-                av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding intra block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
-                return -1;
-            }
-        }
-    }
-
-    return 0;
-}
-
-static int wmv2_decode_init(AVCodecContext *avctx){
-    Wmv2Context * const w= avctx->priv_data;
-
-    if(avctx->idct_algo==FF_IDCT_AUTO){
-        avctx->idct_algo=FF_IDCT_WMV2;
-    }
-
-    if(ff_h263_decode_init(avctx) < 0)
-        return -1;
-
-    wmv2_common_init(w);
-
-    ff_intrax8_common_init(&w->x8,&w->s);
-
-    return 0;
-}
-
-#ifdef CONFIG_WMV2_DECODER
-AVCodec wmv2_decoder = {
-    "wmv2",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_WMV2,
-    sizeof(Wmv2Context),
-    wmv2_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
-};
-#endif
-
-#ifdef CONFIG_WMV2_ENCODER
-AVCodec wmv2_encoder = {
-    "wmv2",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_WMV2,
-    sizeof(Wmv2Context),
-    wmv2_encode_init,
-    MPV_encode_picture,
-    MPV_encode_end,
-    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
-};
-#endif