static int h263_decode_frame(AVCodecContext *avctx, 

                             void *data, int *data_size,

                             UINT8 *buf, int buf_size)

{

    MpegEncContext *s = avctx->priv_data;

    int ret;

    AVPicture *pict = data; 



#ifdef DEBUG

    printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);

    printf("bytes=%x %x %x %x\n", buf[0], buf[1], buf[2], buf[3]);

#endif

    

    /* no supplementary picture */

    if (buf_size == 0) {

        *data_size = 0;

        return 0;

    }



    if(s->bitstream_buffer_size) //divx 5.01+ frame reorder

        init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size);

    else

        init_get_bits(&s->gb, buf, buf_size);



    /* let's go :-) */

    if (s->h263_msmpeg4) {

        ret = msmpeg4_decode_picture_header(s);

    } else if (s->h263_pred) {

        ret = mpeg4_decode_picture_header(s);

        s->has_b_frames= !s->low_delay;

    } else if (s->h263_intel) {

        ret = intel_h263_decode_picture_header(s);

    } else {

        ret = h263_decode_picture_header(s);

    }



        /* After H263 & mpeg4 header decode we have the height, width,*/

        /* and other parameters. So then we could init the picture   */

        /* FIXME: By the way H263 decoder is evolving it should have */

        /* an H263EncContext                                         */

    if (!s->context_initialized) {

        avctx->width = s->width;

        avctx->height = s->height;

        avctx->aspect_ratio_info= s->aspect_ratio_info;

        if (MPV_common_init(s) < 0)

            return -1;

    } else if (s->width != avctx->width || s->height != avctx->height) {

        /* H.263 could change picture size any time */

        MPV_common_end(s);

        if (MPV_common_init(s) < 0)

            return -1;

    }



    if(ret==FRAME_SKIPED) return 0;

    if (ret < 0)

        return -1;

    /* skip b frames if we dont have reference frames */

    if(s->num_available_buffers<2 && s->pict_type==B_TYPE) return 0;

        

    MPV_frame_start(s);



#ifdef DEBUG

    printf("qscale=%d\n", s->qscale);

#endif



    /* decode each macroblock */

    s->block_wrap[0]=

    s->block_wrap[1]=

    s->block_wrap[2]=

    s->block_wrap[3]= s->mb_width*2 + 2;

    s->block_wrap[4]=

    s->block_wrap[5]= s->mb_width + 2;

    for(s->mb_y=0; s->mb_y < s->mb_height; s->mb_y++) {

        /* Check for GOB headers on H.263 */

        /* FIXME: In the future H.263+ will have intra prediction */

        /* and we are gonna need another way to detect MPEG4      */

        if (s->mb_y && !s->h263_pred) {

            s->first_gob_line = h263_decode_gob_header(s);

        }



        s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1;

        s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1);

        s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1;

        s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2);

        s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1)                    + s->block_wrap[0]*(s->mb_height*2 + 2);

        s->block_index[5]= s->block_wrap[4]*(s->mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);

        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {

            s->block_index[0]+=2;

            s->block_index[1]+=2;

            s->block_index[2]+=2;

            s->block_index[3]+=2;

            s->block_index[4]++;

            s->block_index[5]++;

#ifdef DEBUG

            printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);

#endif

            //fprintf(stderr,"\nFrame: %d\tMB: %d",avctx->frame_number, (s->mb_y * s->mb_width) + s->mb_x);

            /* DCT & quantize */

            if (s->h263_msmpeg4) {

                msmpeg4_dc_scale(s);

            } else if (s->h263_pred) {

                h263_dc_scale(s);

            } else {

                /* default quantization values */

                s->y_dc_scale = 8;

                s->c_dc_scale = 8;

            }

            clear_blocks(s->block[0]);

            

            s->mv_dir = MV_DIR_FORWARD;

            s->mv_type = MV_TYPE_16X16; 

            if (s->h263_msmpeg4) {

		if (msmpeg4_decode_mb(s, s->block) < 0) {

		    fprintf(stderr,"\nError at MB: %d\n", (s->mb_y * s->mb_width) + s->mb_x);

                    return -1;

		}

            } else {

                if (h263_decode_mb(s, s->block) < 0) {

                    fprintf(stderr,"\nError at MB: %d\n", (s->mb_y * s->mb_width) + s->mb_x);

                    return -1;

                }

            }

            MPV_decode_mb(s, s->block);

        }

        if (    avctx->draw_horiz_band 

            && (s->num_available_buffers>=1 || (!s->has_b_frames)) ) {

            UINT8 *src_ptr[3];

            int y, h, offset;

            y = s->mb_y * 16;

            h = s->height - y;

            if (h > 16)

                h = 16;

            offset = y * s->linesize;

            if(s->pict_type==B_TYPE || (!s->has_b_frames)){

                src_ptr[0] = s->current_picture[0] + offset;

                src_ptr[1] = s->current_picture[1] + (offset >> 2);

                src_ptr[2] = s->current_picture[2] + (offset >> 2);

            } else {

                src_ptr[0] = s->last_picture[0] + offset;

                src_ptr[1] = s->last_picture[1] + (offset >> 2);

                src_ptr[2] = s->last_picture[2] + (offset >> 2);

            }

            avctx->draw_horiz_band(avctx, src_ptr, s->linesize,

                                   y, s->width, h);

        }

    }

    

    if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==I_TYPE)

        if(msmpeg4_decode_ext_header(s, buf_size) < 0) return -1;

    

    /* divx 5.01+ bistream reorder stuff */

    if(s->h263_pred && s->bitstream_buffer_size==0){

        int current_pos= get_bits_count(&s->gb)/8;

        if(   buf_size - current_pos > 5 

           && buf_size - current_pos < BITSTREAM_BUFFER_SIZE){

            memcpy(s->bitstream_buffer, buf + current_pos, buf_size - current_pos);

            s->bitstream_buffer_size= buf_size - current_pos;

        }

    }else

        s->bitstream_buffer_size=0;

  

    MPV_frame_end(s);

    

    if(s->pict_type==B_TYPE || (!s->has_b_frames)){

        pict->data[0] = s->current_picture[0];

        pict->data[1] = s->current_picture[1];

        pict->data[2] = s->current_picture[2];

    } else {

        pict->data[0] = s->last_picture[0];

        pict->data[1] = s->last_picture[1];

        pict->data[2] = s->last_picture[2];

    }

    pict->linesize[0] = s->linesize;

    pict->linesize[1] = s->linesize / 2;

    pict->linesize[2] = s->linesize / 2;



    avctx->quality = s->qscale;



    /* Return the Picture timestamp as the frame number */

    /* we substract 1 because it is added on utils.c    */

    avctx->frame_number = s->picture_number - 1;



    /* dont output the last pic after seeking 

       note we allready added +1 for the current pix in MPV_frame_end(s) */

    if(s->num_available_buffers>=2 || (!s->has_b_frames))

        *data_size = sizeof(AVPicture);



    return buf_size;

}

static int h263_decode_frame(AVCodecContext *avctx, 

                             void *data, int *data_size,

                             UINT8 *buf, int buf_size)

{

    MpegEncContext *s = avctx->priv_data;

    int ret;

    AVPicture *pict = data; 



#ifdef DEBUG

    printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);

    printf("bytes=%x %x %x %x\n", buf[0], buf[1], buf[2], buf[3]);

#endif

    

    

    if (buf_size == 0) {

        *data_size = 0;

        return 0;

    }



    if(s->bitstream_buffer_size) 

        init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size);

    else

        init_get_bits(&s->gb, buf, buf_size);



    

    if (s->h263_msmpeg4) {

        ret = msmpeg4_decode_picture_header(s);

    } else if (s->h263_pred) {

        ret = mpeg4_decode_picture_header(s);

        s->has_b_frames= !s->low_delay;

    } else if (s->h263_intel) {

        ret = intel_h263_decode_picture_header(s);

    } else {

        ret = h263_decode_picture_header(s);

    }



        

        

        

        

    if (!s->context_initialized) {

        avctx->width = s->width;

        avctx->height = s->height;

        avctx->aspect_ratio_info= s->aspect_ratio_info;

        if (MPV_common_init(s) < 0)

            return -1;

    } else if (s->width != avctx->width || s->height != avctx->height) {

        

        MPV_common_end(s);

        if (MPV_common_init(s) < 0)

            return -1;

    }



    if(ret==FRAME_SKIPED) return 0;

    if (ret < 0)

        return -1;

    

    if(s->num_available_buffers<2 && s->pict_type==B_TYPE) return 0;

        

    MPV_frame_start(s);



#ifdef DEBUG

    printf("qscale=%d\n", s->qscale);

#endif



    

    s->block_wrap[0]=

    s->block_wrap[1]=

    s->block_wrap[2]=

    s->block_wrap[3]= s->mb_width*2 + 2;

    s->block_wrap[4]=

    s->block_wrap[5]= s->mb_width + 2;

    for(s->mb_y=0; s->mb_y < s->mb_height; s->mb_y++) {

        

        

        

        if (s->mb_y && !s->h263_pred) {

            s->first_gob_line = h263_decode_gob_header(s);

        }



        s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1;

        s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1);

        s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1;

        s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2);

        s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1)                    + s->block_wrap[0]*(s->mb_height*2 + 2);

        s->block_index[5]= s->block_wrap[4]*(s->mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);

        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {

            s->block_index[0]+=2;

            s->block_index[1]+=2;

            s->block_index[2]+=2;

            s->block_index[3]+=2;

            s->block_index[4]++;

            s->block_index[5]++;

#ifdef DEBUG

            printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);

#endif

            

            

            if (s->h263_msmpeg4) {

                msmpeg4_dc_scale(s);

            } else if (s->h263_pred) {

                h263_dc_scale(s);

            } else {

                

                s->y_dc_scale = 8;

                s->c_dc_scale = 8;

            }

            clear_blocks(s->block[0]);

            

            s->mv_dir = MV_DIR_FORWARD;

            s->mv_type = MV_TYPE_16X16; 

            if (s->h263_msmpeg4) {

		if (msmpeg4_decode_mb(s, s->block) < 0) {

		    fprintf(stderr,"\nError at MB: %d\n", (s->mb_y * s->mb_width) + s->mb_x);

                    return -1;

		}

            } else {

                if (h263_decode_mb(s, s->block) < 0) {

                    fprintf(stderr,"\nError at MB: %d\n", (s->mb_y * s->mb_width) + s->mb_x);

                    return -1;

                }

            }

            MPV_decode_mb(s, s->block);

        }

        if (    avctx->draw_horiz_band 

            && (s->num_available_buffers>=1 || (!s->has_b_frames)) ) {

            UINT8 *src_ptr[3];

            int y, h, offset;

            y = s->mb_y * 16;

            h = s->height - y;

            if (h > 16)

                h = 16;

            offset = y * s->linesize;

            if(s->pict_type==B_TYPE || (!s->has_b_frames)){

                src_ptr[0] = s->current_picture[0] + offset;

                src_ptr[1] = s->current_picture[1] + (offset >> 2);

                src_ptr[2] = s->current_picture[2] + (offset >> 2);

            } else {

                src_ptr[0] = s->last_picture[0] + offset;

                src_ptr[1] = s->last_picture[1] + (offset >> 2);

                src_ptr[2] = s->last_picture[2] + (offset >> 2);

            }

            avctx->draw_horiz_band(avctx, src_ptr, s->linesize,

                                   y, s->width, h);

        }

    }

    

    if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==I_TYPE)

        if(msmpeg4_decode_ext_header(s, buf_size) < 0) return -1;

    

    

    if(s->h263_pred && s->bitstream_buffer_size==0){

        int current_pos= get_bits_count(&s->gb)/8;

        if(   buf_size - current_pos > 5 

           && buf_size - current_pos < BITSTREAM_BUFFER_SIZE){

            memcpy(s->bitstream_buffer, buf + current_pos, buf_size - current_pos);

            s->bitstream_buffer_size= buf_size - current_pos;

        }

    }else

        s->bitstream_buffer_size=0;

  

    MPV_frame_end(s);

    

    if(s->pict_type==B_TYPE || (!s->has_b_frames)){

        pict->data[0] = s->current_picture[0];

        pict->data[1] = s->current_picture[1];

        pict->data[2] = s->current_picture[2];

    } else {

        pict->data[0] = s->last_picture[0];

        pict->data[1] = s->last_picture[1];

        pict->data[2] = s->last_picture[2];

    }

    pict->linesize[0] = s->linesize;

    pict->linesize[1] = s->linesize / 2;

    pict->linesize[2] = s->linesize / 2;



    avctx->quality = s->qscale;



    

    

    avctx->frame_number = s->picture_number - 1;



    



    if(s->num_available_buffers>=2 || (!s->has_b_frames))

        *data_size = sizeof(AVPicture);



    return buf_size;

}

    if(s->h263_pred && s->bitstream_buffer_size==0){ #endif #endif #endif     } else {     } else {             } else { #endif
static int FUNC_0(AVCodecContext *VAR_0, 

                             void *VAR_1, int *VAR_2,

                             UINT8 *VAR_3, int VAR_4)

{

    MpegEncContext *s = VAR_0->priv_data;

    int VAR_5;

    AVPicture *pict = VAR_1; 



#ifdef DEBUG

    printf("*****frame %d size=%d\n", VAR_0->frame_number, VAR_4);

    printf("bytes=%x %x %x %x\n", VAR_3[0], VAR_3[1], VAR_3[2], VAR_3[3]);

#endif

    

    

    if (VAR_4 == 0) {

        *VAR_2 = 0;

        return 0;

    }



    if(s->bitstream_buffer_size) 

        init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size);

    else

        init_get_bits(&s->gb, VAR_3, VAR_4);



    

    if (s->h263_msmpeg4) {

        VAR_5 = msmpeg4_decode_picture_header(s);

    } else if (s->h263_pred) {

        VAR_5 = mpeg4_decode_picture_header(s);

        s->has_b_frames= !s->low_delay;

    } else if (s->h263_intel) {

        VAR_5 = intel_h263_decode_picture_header(s);

    } else {

        VAR_5 = h263_decode_picture_header(s);

    }



        

        

        

        

    if (!s->context_initialized) {

        VAR_0->width = s->width;

        VAR_0->height = s->height;

        VAR_0->aspect_ratio_info= s->aspect_ratio_info;

        if (MPV_common_init(s) < 0)

            return -1;

    } else if (s->width != VAR_0->width || s->height != VAR_0->height) {

        

        MPV_common_end(s);

        if (MPV_common_init(s) < 0)

            return -1;

    }



    if(VAR_5==FRAME_SKIPED) return 0;

    if (VAR_5 < 0)

        return -1;

    

    if(s->num_available_buffers<2 && s->pict_type==B_TYPE) return 0;

        

    MPV_frame_start(s);



#ifdef DEBUG

    printf("qscale=%d\n", s->qscale);

#endif



    

    s->block_wrap[0]=

    s->block_wrap[1]=

    s->block_wrap[2]=

    s->block_wrap[3]= s->mb_width*2 + 2;

    s->block_wrap[4]=

    s->block_wrap[5]= s->mb_width + 2;

    for(s->mb_y=0; s->mb_y < s->mb_height; s->mb_y++) {

        

        

        

        if (s->mb_y && !s->h263_pred) {

            s->first_gob_line = h263_decode_gob_header(s);

        }



        s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1;

        s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1);

        s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1;

        s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2);

        s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1)                    + s->block_wrap[0]*(s->mb_height*2 + 2);

        s->block_index[5]= s->block_wrap[4]*(s->mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);

        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {

            s->block_index[0]+=2;

            s->block_index[1]+=2;

            s->block_index[2]+=2;

            s->block_index[3]+=2;

            s->block_index[4]++;

            s->block_index[5]++;

#ifdef DEBUG

            printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);

#endif

            

            

            if (s->h263_msmpeg4) {

                msmpeg4_dc_scale(s);

            } else if (s->h263_pred) {

                h263_dc_scale(s);

            } else {

                

                s->y_dc_scale = 8;

                s->c_dc_scale = 8;

            }

            clear_blocks(s->block[0]);

            

            s->mv_dir = MV_DIR_FORWARD;

            s->mv_type = MV_TYPE_16X16; 

            if (s->h263_msmpeg4) {

		if (msmpeg4_decode_mb(s, s->block) < 0) {

		    fprintf(stderr,"\nError at MB: %d\n", (s->mb_y * s->mb_width) + s->mb_x);

                    return -1;

		}

            } else {

                if (h263_decode_mb(s, s->block) < 0) {

                    fprintf(stderr,"\nError at MB: %d\n", (s->mb_y * s->mb_width) + s->mb_x);

                    return -1;

                }

            }

            MPV_decode_mb(s, s->block);

        }

        if (    VAR_0->draw_horiz_band 

            && (s->num_available_buffers>=1 || (!s->has_b_frames)) ) {

            UINT8 *src_ptr[3];

            int y, h, offset;

            y = s->mb_y * 16;

            h = s->height - y;

            if (h > 16)

                h = 16;

            offset = y * s->linesize;

            if(s->pict_type==B_TYPE || (!s->has_b_frames)){

                src_ptr[0] = s->current_picture[0] + offset;

                src_ptr[1] = s->current_picture[1] + (offset >> 2);

                src_ptr[2] = s->current_picture[2] + (offset >> 2);

            } else {

                src_ptr[0] = s->last_picture[0] + offset;

                src_ptr[1] = s->last_picture[1] + (offset >> 2);

                src_ptr[2] = s->last_picture[2] + (offset >> 2);

            }

            VAR_0->draw_horiz_band(VAR_0, src_ptr, s->linesize,

                                   y, s->width, h);

        }

    }

    

    if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==I_TYPE)

        if(msmpeg4_decode_ext_header(s, VAR_4) < 0) return -1;

    

    

    if(s->h263_pred && s->bitstream_buffer_size==0){

        int VAR_6= get_bits_count(&s->gb)/8;

        if(   VAR_4 - VAR_6 > 5 

           && VAR_4 - VAR_6 < BITSTREAM_BUFFER_SIZE){

            memcpy(s->bitstream_buffer, VAR_3 + VAR_6, VAR_4 - VAR_6);

            s->bitstream_buffer_size= VAR_4 - VAR_6;

        }

    }else

        s->bitstream_buffer_size=0;

  

    MPV_frame_end(s);

    

    if(s->pict_type==B_TYPE || (!s->has_b_frames)){

        pict->VAR_1[0] = s->current_picture[0];

        pict->VAR_1[1] = s->current_picture[1];

        pict->VAR_1[2] = s->current_picture[2];

    } else {

        pict->VAR_1[0] = s->last_picture[0];

        pict->VAR_1[1] = s->last_picture[1];

        pict->VAR_1[2] = s->last_picture[2];

    }

    pict->linesize[0] = s->linesize;

    pict->linesize[1] = s->linesize / 2;

    pict->linesize[2] = s->linesize / 2;



    VAR_0->quality = s->qscale;



    

    

    VAR_0->frame_number = s->picture_number - 1;



    



    if(s->num_available_buffers>=2 || (!s->has_b_frames))

        *VAR_2 = sizeof(AVPicture);



    return VAR_4;

}

static int FUNC_0(AVCodecContext *VAR_0,
void *VAR_1, int *VAR_2,
UINT8 *VAR_3, int VAR_4)
{ MpegEncContext *s = VAR_0->priv_data; int VAR_5; AVPicture *pict = VAR_1; #ifdef DEBUG
printf("*****frame %d size=%d\n", VAR_0->frame_number, VAR_4); printf("bytes=%x %x %x %x\n", VAR_3[0], VAR_3[1], VAR_3[2], VAR_3[3]); #endif
if (VAR_4 == 0) { *VAR_2 = 0; return 0; } if(s->bitstream_buffer_size)
init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size); else
init_get_bits(&s->gb, VAR_3, VAR_4); if (s->h263_msmpeg4) { VAR_5 = msmpeg4_decode_picture_header(s); } else if (s->h263_pred) { VAR_5 = mpeg4_decode_picture_header(s); s->has_b_frames= !s->low_delay; } else if (s->h263_intel) { VAR_5 = intel_h263_decode_picture_header(s); } else { VAR_5 = h263_decode_picture_header(s); } if (!s->context_initialized) { VAR_0->width = s->width; VAR_0->height = s->height; VAR_0->aspect_ratio_info= s->aspect_ratio_info; if (MPV_common_init(s) < 0)
return -1; } else if (s->width != VAR_0->width || s->height != VAR_0->height) { MPV_common_end(s); if (MPV_common_init(s) < 0)
return -1; } if(VAR_5==FRAME_SKIPED) return 0; if (VAR_5 < 0)
return -1; if(s->num_available_buffers<2 && s->pict_type==B_TYPE) return 0; MPV_frame_start(s); #ifdef DEBUG
printf("qscale=%d\n", s->qscale); #endif
s->block_wrap[0]=
s->block_wrap[1]=
s->block_wrap[2]=
s->block_wrap[3]= s->mb_width*2 + 2; s->block_wrap[4]=
s->block_wrap[5]= s->mb_width + 2; for(s->mb_y=0; s->mb_y < s->mb_height; s->mb_y++) { if (s->mb_y && !s->h263_pred) { s->first_gob_line = h263_decode_gob_header(s); } s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1; s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1); s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1; s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2); s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1)                    + s->block_wrap[0]*(s->mb_height*2 + 2); s->block_index[5]= s->block_wrap[4]*(s->mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2); for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) { s->block_index[0]+=2; s->block_index[1]+=2; s->block_index[2]+=2; s->block_index[3]+=2; s->block_index[4]++; s->block_index[5]++; #ifdef DEBUG
printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y); #endif
if (s->h263_msmpeg4) { msmpeg4_dc_scale(s); } else if (s->h263_pred) { h263_dc_scale(s); } else { s->y_dc_scale = 8; s->c_dc_scale = 8; } clear_blocks(s->block[0]); s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; if (s->h263_msmpeg4) { if (msmpeg4_decode_mb(s, s->block) < 0) { fprintf(stderr,"\nError at MB: %d\n", (s->mb_y * s->mb_width) + s->mb_x); return -1; } } else { if (h263_decode_mb(s, s->block) < 0) { fprintf(stderr,"\nError at MB: %d\n", (s->mb_y * s->mb_width) + s->mb_x); return -1; } } MPV_decode_mb(s, s->block); } if (    VAR_0->draw_horiz_band
&& (s->num_available_buffers>=1 || (!s->has_b_frames)) ) { UINT8 *src_ptr[3]; int y, h, offset; y = s->mb_y * 16; h = s->height - y; if (h > 16)
h = 16; offset = y * s->linesize; if(s->pict_type==B_TYPE || (!s->has_b_frames)){ src_ptr[0] = s->current_picture[0] + offset; src_ptr[1] = s->current_picture[1] + (offset >> 2); src_ptr[2] = s->current_picture[2] + (offset >> 2); } else { src_ptr[0] = s->last_picture[0] + offset; src_ptr[1] = s->last_picture[1] + (offset >> 2); src_ptr[2] = s->last_picture[2] + (offset >> 2); } VAR_0->draw_horiz_band(VAR_0, src_ptr, s->linesize,
y, s->width, h); } } if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==I_TYPE)
if(msmpeg4_decode_ext_header(s, VAR_4) < 0) return -1; if(s->h263_pred && s->bitstream_buffer_size==0){ int VAR_6= get_bits_count(&s->gb)/8; if(   VAR_4 - VAR_6 > 5
&& VAR_4 - VAR_6 < BITSTREAM_BUFFER_SIZE){ memcpy(s->bitstream_buffer, VAR_3 + VAR_6, VAR_4 - VAR_6); s->bitstream_buffer_size= VAR_4 - VAR_6; } }else s->bitstream_buffer_size=0; MPV_frame_end(s); if(s->pict_type==B_TYPE || (!s->has_b_frames)){ pict->VAR_1[0] = s->current_picture[0]; pict->VAR_1[1] = s->current_picture[1]; pict->VAR_1[2] = s->current_picture[2]; } else { pict->VAR_1[0] = s->last_picture[0]; pict->VAR_1[1] = s->last_picture[1]; pict->VAR_1[2] = s->last_picture[2]; } pict->linesize[0] = s->linesize; pict->linesize[1] = s->linesize / 2; pict->linesize[2] = s->linesize / 2; VAR_0->quality = s->qscale; VAR_0->frame_number = s->picture_number - 1; if(s->num_available_buffers>=2 || (!s->has_b_frames))
*VAR_2 = sizeof(AVPicture); return VAR_4; }