int ff_h263_decode_frame(AVCodecContext *avctx,

                             void *data, int *data_size,

                             const uint8_t *buf, int buf_size)

{

    MpegEncContext *s = avctx->priv_data;

    int ret;

    AVFrame *pict = data;



#ifdef PRINT_FRAME_TIME

uint64_t time= rdtsc();

#endif

#ifdef DEBUG

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

    if(buf_size>0)

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

#endif

    s->flags= avctx->flags;

    s->flags2= avctx->flags2;



    /* no supplementary picture */

    if (buf_size == 0) {

        /* special case for last picture */

        if (s->low_delay==0 && s->next_picture_ptr) {

            *pict= *(AVFrame*)s->next_picture_ptr;

            s->next_picture_ptr= NULL;



            *data_size = sizeof(AVFrame);

        }



        return 0;

    }



    if(s->flags&CODEC_FLAG_TRUNCATED){

        int next;



        if(CONFIG_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){

            next= ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size);

        }else if(CONFIG_H263_DECODER && s->codec_id==CODEC_ID_H263){

            next= ff_h263_find_frame_end(&s->parse_context, buf, buf_size);

        }else{

            av_log(s->avctx, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n");

            return -1;

        }



        if( ff_combine_frame(&s->parse_context, next, (const uint8_t **)&buf, &buf_size) < 0 )

            return buf_size;

    }





retry:



    if(s->bitstream_buffer_size && (s->divx_packed || buf_size<20)){ //divx 5.01+/xvid frame reorder

        init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size*8);

    }else

        init_get_bits(&s->gb, buf, buf_size*8);

    s->bitstream_buffer_size=0;



    if (!s->context_initialized) {

        if (MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix

            return -1;

    }



    /* We need to set current_picture_ptr before reading the header,

     * otherwise we cannot store anyting in there */

    if(s->current_picture_ptr==NULL || s->current_picture_ptr->data[0]){

        int i= ff_find_unused_picture(s, 0);

        s->current_picture_ptr= &s->picture[i];

    }



    /* let's go :-) */

    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5) {

        ret= ff_wmv2_decode_picture_header(s);

    } else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {

        ret = msmpeg4_decode_picture_header(s);

    } else if (s->h263_pred) {

        if(s->avctx->extradata_size && s->picture_number==0){

            GetBitContext gb;



            init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8);

            ret = ff_mpeg4_decode_picture_header(s, &gb);

        }

        ret = ff_mpeg4_decode_picture_header(s, &s->gb);

    } else if (s->codec_id == CODEC_ID_H263I) {

        ret = intel_h263_decode_picture_header(s);

    } else if (s->h263_flv) {

        ret = flv_h263_decode_picture_header(s);

    } else {

        ret = h263_decode_picture_header(s);

    }



    if(ret==FRAME_SKIPPED) return get_consumed_bytes(s, buf_size);



    /* skip if the header was thrashed */

    if (ret < 0){

        av_log(s->avctx, AV_LOG_ERROR, "header damaged\n");

        return -1;

    }



    avctx->has_b_frames= !s->low_delay;



    if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){

        if(s->stream_codec_tag == AV_RL32("XVID") ||

           s->codec_tag == AV_RL32("XVID") || s->codec_tag == AV_RL32("XVIX") ||

           s->codec_tag == AV_RL32("RMP4"))

            s->xvid_build= -1;

#if 0

        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==1

           && s->padding_bug_score > 0 && s->low_delay) // XVID with modified fourcc

            s->xvid_build= -1;

#endif

    }



    if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){

        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)

            s->divx_version= 400; //divx 4

    }



    if(s->xvid_build && s->divx_version){

        s->divx_version=

        s->divx_build= 0;

    }



    if(s->workaround_bugs&FF_BUG_AUTODETECT){

        if(s->codec_tag == AV_RL32("XVIX"))

            s->workaround_bugs|= FF_BUG_XVID_ILACE;



        if(s->codec_tag == AV_RL32("UMP4")){

            s->workaround_bugs|= FF_BUG_UMP4;

        }



        if(s->divx_version>=500 && s->divx_build<1814){

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA;

        }



        if(s->divx_version>502 && s->divx_build<1814){

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA2;

        }



        if(s->xvid_build && s->xvid_build<=3)

            s->padding_bug_score= 256*256*256*64;



        if(s->xvid_build && s->xvid_build<=1)

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA;



        if(s->xvid_build && s->xvid_build<=12)

            s->workaround_bugs|= FF_BUG_EDGE;



        if(s->xvid_build && s->xvid_build<=32)

            s->workaround_bugs|= FF_BUG_DC_CLIP;



#define SET_QPEL_FUNC(postfix1, postfix2) \

    s->dsp.put_ ## postfix1 = ff_put_ ## postfix2;\

    s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;\

    s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;



        if(s->lavc_build && s->lavc_build<4653)

            s->workaround_bugs|= FF_BUG_STD_QPEL;



        if(s->lavc_build && s->lavc_build<4655)

            s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;



        if(s->lavc_build && s->lavc_build<4670){

            s->workaround_bugs|= FF_BUG_EDGE;

        }



        if(s->lavc_build && s->lavc_build<=4712)

            s->workaround_bugs|= FF_BUG_DC_CLIP;



        if(s->divx_version)

            s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;

//printf("padding_bug_score: %d\n", s->padding_bug_score);

        if(s->divx_version==501 && s->divx_build==20020416)

            s->padding_bug_score= 256*256*256*64;



        if(s->divx_version && s->divx_version<500){

            s->workaround_bugs|= FF_BUG_EDGE;

        }



        if(s->divx_version)

            s->workaround_bugs|= FF_BUG_HPEL_CHROMA;

#if 0

        if(s->divx_version==500)

            s->padding_bug_score= 256*256*256*64;



        /* very ugly XVID padding bug detection FIXME/XXX solve this differently

         * Let us hope this at least works.

         */

        if(   s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0

           && s->codec_id==CODEC_ID_MPEG4 && s->vo_type==0)

            s->workaround_bugs|= FF_BUG_NO_PADDING;



        if(s->lavc_build && s->lavc_build<4609) //FIXME not sure about the version num but a 4609 file seems ok

            s->workaround_bugs|= FF_BUG_NO_PADDING;

#endif

    }



    if(s->workaround_bugs& FF_BUG_STD_QPEL){

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 5], qpel16_mc11_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 7], qpel16_mc31_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 9], qpel16_mc12_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][11], qpel16_mc32_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][13], qpel16_mc13_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][15], qpel16_mc33_old_c)



        SET_QPEL_FUNC(qpel_pixels_tab[1][ 5], qpel8_mc11_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][ 7], qpel8_mc31_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][ 9], qpel8_mc12_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][11], qpel8_mc32_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][13], qpel8_mc13_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][15], qpel8_mc33_old_c)

    }



    if(avctx->debug & FF_DEBUG_BUGS)

        av_log(s->avctx, AV_LOG_DEBUG, "bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n",

               s->workaround_bugs, s->lavc_build, s->xvid_build, s->divx_version, s->divx_build,

               s->divx_packed ? "p" : "");



#if 0 // dump bits per frame / qp / complexity

{

    static FILE *f=NULL;

    if(!f) f=fopen("rate_qp_cplx.txt", "w");

    fprintf(f, "%d %d %f\n", buf_size, s->qscale, buf_size*(double)s->qscale);

}

#endif



#if HAVE_MMX

    if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && avctx->idct_algo == FF_IDCT_AUTO && (mm_flags & FF_MM_MMX)){

        avctx->idct_algo= FF_IDCT_XVIDMMX;

        avctx->coded_width= 0; // force reinit

//        dsputil_init(&s->dsp, avctx);

        s->picture_number=0;

    }

#endif



        /* 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->width  != avctx->coded_width

        || s->height != avctx->coded_height) {

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

        ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat

        s->parse_context.buffer=0;

        MPV_common_end(s);

        s->parse_context= pc;

    }

    if (!s->context_initialized) {

        avcodec_set_dimensions(avctx, s->width, s->height);



        goto retry;

    }



    if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P))

        s->gob_index = ff_h263_get_gob_height(s);



    // for hurry_up==5

    s->current_picture.pict_type= s->pict_type;

    s->current_picture.key_frame= s->pict_type == FF_I_TYPE;



    /* skip B-frames if we don't have reference frames */

    if(s->last_picture_ptr==NULL && (s->pict_type==FF_B_TYPE || s->dropable)) return get_consumed_bytes(s, buf_size);

    /* skip b frames if we are in a hurry */

    if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return get_consumed_bytes(s, buf_size);

    if(   (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)

       || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)

       ||  avctx->skip_frame >= AVDISCARD_ALL)

        return get_consumed_bytes(s, buf_size);

    /* skip everything if we are in a hurry>=5 */

    if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size);



    if(s->next_p_frame_damaged){

        if(s->pict_type==FF_B_TYPE)

            return get_consumed_bytes(s, buf_size);

        else

            s->next_p_frame_damaged=0;

    }



    if((s->avctx->flags2 & CODEC_FLAG2_FAST) && s->pict_type==FF_B_TYPE){

        s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;

    }else if((!s->no_rounding) || s->pict_type==FF_B_TYPE){

        s->me.qpel_put= s->dsp.put_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;

    }else{

        s->me.qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;

    }



    if(MPV_frame_start(s, avctx) < 0)

        return -1;



#ifdef DEBUG

    av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);

#endif



    ff_er_frame_start(s);



    //the second part of the wmv2 header contains the MB skip bits which are stored in current_picture->mb_type

    //which is not available before MPV_frame_start()

    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){

        ret = ff_wmv2_decode_secondary_picture_header(s);

        if(ret<0) return ret;

        if(ret==1) goto intrax8_decoded;

    }



    /* decode each macroblock */

    s->mb_x=0;

    s->mb_y=0;



    decode_slice(s);

    while(s->mb_y<s->mb_height){

        if(s->msmpeg4_version){

            if(s->slice_height==0 || s->mb_x!=0 || (s->mb_y%s->slice_height)!=0 || get_bits_count(&s->gb) > s->gb.size_in_bits)

                break;

        }else{

            if(ff_h263_resync(s)<0)

                break;

        }



        if(s->msmpeg4_version<4 && s->h263_pred)

            ff_mpeg4_clean_buffers(s);



        decode_slice(s);

    }



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

        if(!CONFIG_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, buf_size) < 0){

            s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;

        }



    /* divx 5.01+ bistream reorder stuff */

    if(s->codec_id==CODEC_ID_MPEG4 && s->bitstream_buffer_size==0 && s->divx_packed){

        int current_pos= get_bits_count(&s->gb)>>3;

        int startcode_found=0;



        if(buf_size - current_pos > 5){

            int i;

            for(i=current_pos; i<buf_size-3; i++){

                if(buf[i]==0 && buf[i+1]==0 && buf[i+2]==1 && buf[i+3]==0xB6){

                    startcode_found=1;

                    break;

                }

            }

        }

        if(s->gb.buffer == s->bitstream_buffer && buf_size>20){ //xvid style

            startcode_found=1;

            current_pos=0;

        }



        if(startcode_found){

            s->bitstream_buffer= av_fast_realloc(

                s->bitstream_buffer,

                &s->allocated_bitstream_buffer_size,

                buf_size - current_pos + FF_INPUT_BUFFER_PADDING_SIZE);

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

            s->bitstream_buffer_size= buf_size - current_pos;

        }

    }



intrax8_decoded:

    ff_er_frame_end(s);



    MPV_frame_end(s);



assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);

assert(s->current_picture.pict_type == s->pict_type);

    if (s->pict_type == FF_B_TYPE || s->low_delay) {

        *pict= *(AVFrame*)s->current_picture_ptr;

    } else if (s->last_picture_ptr != NULL) {

        *pict= *(AVFrame*)s->last_picture_ptr;

    }



    if(s->last_picture_ptr || s->low_delay){

        *data_size = sizeof(AVFrame);

        ff_print_debug_info(s, pict);

    }



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

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

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



#ifdef PRINT_FRAME_TIME

av_log(avctx, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time);

#endif



    return get_consumed_bytes(s, buf_size);

}

int ff_h263_decode_frame(AVCodecContext *avctx,

                             void *data, int *data_size,

                             const uint8_t *buf, int buf_size)

{

    MpegEncContext *s = avctx->priv_data;

    int ret;

    AVFrame *pict = data;



#ifdef PRINT_FRAME_TIME

uint64_t time= rdtsc();

#endif

#ifdef DEBUG

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

    if(buf_size>0)

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

#endif

    s->flags= avctx->flags;

    s->flags2= avctx->flags2;



    

    if (buf_size == 0) {

        

        if (s->low_delay==0 && s->next_picture_ptr) {

            *pict= *(AVFrame*)s->next_picture_ptr;

            s->next_picture_ptr= NULL;



            *data_size = sizeof(AVFrame);

        }



        return 0;

    }



    if(s->flags&CODEC_FLAG_TRUNCATED){

        int next;



        if(CONFIG_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){

            next= ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size);

        }else if(CONFIG_H263_DECODER && s->codec_id==CODEC_ID_H263){

            next= ff_h263_find_frame_end(&s->parse_context, buf, buf_size);

        }else{

            av_log(s->avctx, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n");

            return -1;

        }



        if( ff_combine_frame(&s->parse_context, next, (const uint8_t **)&buf, &buf_size) < 0 )

            return buf_size;

    }





retry:



    if(s->bitstream_buffer_size && (s->divx_packed || buf_size<20)){ 

        init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size*8);

    }else

        init_get_bits(&s->gb, buf, buf_size*8);

    s->bitstream_buffer_size=0;



    if (!s->context_initialized) {

        if (MPV_common_init(s) < 0) 

            return -1;

    }



    



    if(s->current_picture_ptr==NULL || s->current_picture_ptr->data[0]){

        int i= ff_find_unused_picture(s, 0);

        s->current_picture_ptr= &s->picture[i];

    }



    

    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5) {

        ret= ff_wmv2_decode_picture_header(s);

    } else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {

        ret = msmpeg4_decode_picture_header(s);

    } else if (s->h263_pred) {

        if(s->avctx->extradata_size && s->picture_number==0){

            GetBitContext gb;



            init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8);

            ret = ff_mpeg4_decode_picture_header(s, &gb);

        }

        ret = ff_mpeg4_decode_picture_header(s, &s->gb);

    } else if (s->codec_id == CODEC_ID_H263I) {

        ret = intel_h263_decode_picture_header(s);

    } else if (s->h263_flv) {

        ret = flv_h263_decode_picture_header(s);

    } else {

        ret = h263_decode_picture_header(s);

    }



    if(ret==FRAME_SKIPPED) return get_consumed_bytes(s, buf_size);



    

    if (ret < 0){

        av_log(s->avctx, AV_LOG_ERROR, "header damaged\n");

        return -1;

    }



    avctx->has_b_frames= !s->low_delay;



    if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){

        if(s->stream_codec_tag == AV_RL32("XVID") ||

           s->codec_tag == AV_RL32("XVID") || s->codec_tag == AV_RL32("XVIX") ||

           s->codec_tag == AV_RL32("RMP4"))

            s->xvid_build= -1;

#if 0

        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==1

           && s->padding_bug_score > 0 && s->low_delay) 

            s->xvid_build= -1;

#endif

    }



    if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){

        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)

            s->divx_version= 400; 

    }



    if(s->xvid_build && s->divx_version){

        s->divx_version=

        s->divx_build= 0;

    }



    if(s->workaround_bugs&FF_BUG_AUTODETECT){

        if(s->codec_tag == AV_RL32("XVIX"))

            s->workaround_bugs|= FF_BUG_XVID_ILACE;



        if(s->codec_tag == AV_RL32("UMP4")){

            s->workaround_bugs|= FF_BUG_UMP4;

        }



        if(s->divx_version>=500 && s->divx_build<1814){

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA;

        }



        if(s->divx_version>502 && s->divx_build<1814){

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA2;

        }



        if(s->xvid_build && s->xvid_build<=3)

            s->padding_bug_score= 256*256*256*64;



        if(s->xvid_build && s->xvid_build<=1)

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA;



        if(s->xvid_build && s->xvid_build<=12)

            s->workaround_bugs|= FF_BUG_EDGE;



        if(s->xvid_build && s->xvid_build<=32)

            s->workaround_bugs|= FF_BUG_DC_CLIP;



#define SET_QPEL_FUNC(postfix1, postfix2) \

    s->dsp.put_ ## postfix1 = ff_put_ ## postfix2;\

    s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;\

    s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;



        if(s->lavc_build && s->lavc_build<4653)

            s->workaround_bugs|= FF_BUG_STD_QPEL;



        if(s->lavc_build && s->lavc_build<4655)

            s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;



        if(s->lavc_build && s->lavc_build<4670){

            s->workaround_bugs|= FF_BUG_EDGE;

        }



        if(s->lavc_build && s->lavc_build<=4712)

            s->workaround_bugs|= FF_BUG_DC_CLIP;



        if(s->divx_version)

            s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;



        if(s->divx_version==501 && s->divx_build==20020416)

            s->padding_bug_score= 256*256*256*64;



        if(s->divx_version && s->divx_version<500){

            s->workaround_bugs|= FF_BUG_EDGE;

        }



        if(s->divx_version)

            s->workaround_bugs|= FF_BUG_HPEL_CHROMA;

#if 0

        if(s->divx_version==500)

            s->padding_bug_score= 256*256*256*64;



        





        if(   s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0

           && s->codec_id==CODEC_ID_MPEG4 && s->vo_type==0)

            s->workaround_bugs|= FF_BUG_NO_PADDING;



        if(s->lavc_build && s->lavc_build<4609) 

            s->workaround_bugs|= FF_BUG_NO_PADDING;

#endif

    }



    if(s->workaround_bugs& FF_BUG_STD_QPEL){

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 5], qpel16_mc11_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 7], qpel16_mc31_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 9], qpel16_mc12_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][11], qpel16_mc32_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][13], qpel16_mc13_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][15], qpel16_mc33_old_c)



        SET_QPEL_FUNC(qpel_pixels_tab[1][ 5], qpel8_mc11_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][ 7], qpel8_mc31_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][ 9], qpel8_mc12_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][11], qpel8_mc32_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][13], qpel8_mc13_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][15], qpel8_mc33_old_c)

    }



    if(avctx->debug & FF_DEBUG_BUGS)

        av_log(s->avctx, AV_LOG_DEBUG, "bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n",

               s->workaround_bugs, s->lavc_build, s->xvid_build, s->divx_version, s->divx_build,

               s->divx_packed ? "p" : "");



#if 0 

{

    static FILE *f=NULL;

    if(!f) f=fopen("rate_qp_cplx.txt", "w");

    fprintf(f, "%d %d %f\n", buf_size, s->qscale, buf_size*(double)s->qscale);

}

#endif



#if HAVE_MMX

    if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && avctx->idct_algo == FF_IDCT_AUTO && (mm_flags & FF_MM_MMX)){

        avctx->idct_algo= FF_IDCT_XVIDMMX;

        avctx->coded_width= 0; 



        s->picture_number=0;

    }

#endif



        

        

        

        



    if (   s->width  != avctx->coded_width

        || s->height != avctx->coded_height) {

        

        ParseContext pc= s->parse_context; 

        s->parse_context.buffer=0;

        MPV_common_end(s);

        s->parse_context= pc;

    }

    if (!s->context_initialized) {

        avcodec_set_dimensions(avctx, s->width, s->height);



        goto retry;

    }



    if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P))

        s->gob_index = ff_h263_get_gob_height(s);



    

    s->current_picture.pict_type= s->pict_type;

    s->current_picture.key_frame= s->pict_type == FF_I_TYPE;



    

    if(s->last_picture_ptr==NULL && (s->pict_type==FF_B_TYPE || s->dropable)) return get_consumed_bytes(s, buf_size);

    

    if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return get_consumed_bytes(s, buf_size);

    if(   (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)

       || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)

       ||  avctx->skip_frame >= AVDISCARD_ALL)

        return get_consumed_bytes(s, buf_size);

    

    if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size);



    if(s->next_p_frame_damaged){

        if(s->pict_type==FF_B_TYPE)

            return get_consumed_bytes(s, buf_size);

        else

            s->next_p_frame_damaged=0;

    }



    if((s->avctx->flags2 & CODEC_FLAG2_FAST) && s->pict_type==FF_B_TYPE){

        s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;

    }else if((!s->no_rounding) || s->pict_type==FF_B_TYPE){

        s->me.qpel_put= s->dsp.put_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;

    }else{

        s->me.qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;

    }



    if(MPV_frame_start(s, avctx) < 0)

        return -1;



#ifdef DEBUG

    av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);

#endif



    ff_er_frame_start(s);



    

    

    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){

        ret = ff_wmv2_decode_secondary_picture_header(s);

        if(ret<0) return ret;

        if(ret==1) goto intrax8_decoded;

    }



    

    s->mb_x=0;

    s->mb_y=0;



    decode_slice(s);

    while(s->mb_y<s->mb_height){

        if(s->msmpeg4_version){

            if(s->slice_height==0 || s->mb_x!=0 || (s->mb_y%s->slice_height)!=0 || get_bits_count(&s->gb) > s->gb.size_in_bits)

                break;

        }else{

            if(ff_h263_resync(s)<0)

                break;

        }



        if(s->msmpeg4_version<4 && s->h263_pred)

            ff_mpeg4_clean_buffers(s);



        decode_slice(s);

    }



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

        if(!CONFIG_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, buf_size) < 0){

            s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;

        }



    

    if(s->codec_id==CODEC_ID_MPEG4 && s->bitstream_buffer_size==0 && s->divx_packed){

        int current_pos= get_bits_count(&s->gb)>>3;

        int startcode_found=0;



        if(buf_size - current_pos > 5){

            int i;

            for(i=current_pos; i<buf_size-3; i++){

                if(buf[i]==0 && buf[i+1]==0 && buf[i+2]==1 && buf[i+3]==0xB6){

                    startcode_found=1;

                    break;

                }

            }

        }

        if(s->gb.buffer == s->bitstream_buffer && buf_size>20){ 

            startcode_found=1;

            current_pos=0;

        }



        if(startcode_found){

            s->bitstream_buffer= av_fast_realloc(

                s->bitstream_buffer,

                &s->allocated_bitstream_buffer_size,

                buf_size - current_pos + FF_INPUT_BUFFER_PADDING_SIZE);

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

            s->bitstream_buffer_size= buf_size - current_pos;

        }

    }



intrax8_decoded:

    ff_er_frame_end(s);



    MPV_frame_end(s);



assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);

assert(s->current_picture.pict_type == s->pict_type);

    if (s->pict_type == FF_B_TYPE || s->low_delay) {

        *pict= *(AVFrame*)s->current_picture_ptr;

    } else if (s->last_picture_ptr != NULL) {

        *pict= *(AVFrame*)s->last_picture_ptr;

    }



    if(s->last_picture_ptr || s->low_delay){

        *data_size = sizeof(AVFrame);

        ff_print_debug_info(s, pict);

    }



    

    

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



#ifdef PRINT_FRAME_TIME

av_log(avctx, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time);

#endif



    return get_consumed_bytes(s, buf_size);

}

int FUNC_0(AVCodecContext *VAR_0,

                             void *VAR_1, int *VAR_2,

                             const uint8_t *VAR_3, int VAR_4)

{

    MpegEncContext *s = VAR_0->priv_data;

    int VAR_5;

    AVFrame *pict = VAR_1;



#ifdef PRINT_FRAME_TIME

uint64_t time= rdtsc();

#endif

#ifdef DEBUG

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

    if(VAR_4>0)

        av_log(VAR_0, AV_LOG_DEBUG, "bytes=%x %x %x %x\n", VAR_3[0], VAR_3[1], VAR_3[2], VAR_3[3]);

#endif

    s->flags= VAR_0->flags;

    s->flags2= VAR_0->flags2;



    

    if (VAR_4 == 0) {

        

        if (s->low_delay==0 && s->next_picture_ptr) {

            *pict= *(AVFrame*)s->next_picture_ptr;

            s->next_picture_ptr= NULL;



            *VAR_2 = sizeof(AVFrame);

        }



        return 0;

    }



    if(s->flags&CODEC_FLAG_TRUNCATED){

        int VAR_6;



        if(CONFIG_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){

            VAR_6= ff_mpeg4_find_frame_end(&s->parse_context, VAR_3, VAR_4);

        }else if(CONFIG_H263_DECODER && s->codec_id==CODEC_ID_H263){

            VAR_6= ff_h263_find_frame_end(&s->parse_context, VAR_3, VAR_4);

        }else{

            av_log(s->VAR_0, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n");

            return -1;

        }



        if( ff_combine_frame(&s->parse_context, VAR_6, (const uint8_t **)&VAR_3, &VAR_4) < 0 )

            return VAR_4;

    }





retry:



    if(s->bitstream_buffer_size && (s->divx_packed || VAR_4<20)){ 

        init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size*8);

    }else

        init_get_bits(&s->gb, VAR_3, VAR_4*8);

    s->bitstream_buffer_size=0;



    if (!s->context_initialized) {

        if (MPV_common_init(s) < 0) 

            return -1;

    }



    



    if(s->current_picture_ptr==NULL || s->current_picture_ptr->VAR_1[0]){

        int VAR_10= ff_find_unused_picture(s, 0);

        s->current_picture_ptr= &s->picture[VAR_10];

    }



    

    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5) {

        VAR_5= ff_wmv2_decode_picture_header(s);

    } else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {

        VAR_5 = msmpeg4_decode_picture_header(s);

    } else if (s->h263_pred) {

        if(s->VAR_0->extradata_size && s->picture_number==0){

            GetBitContext gb;



            init_get_bits(&gb, s->VAR_0->extradata, s->VAR_0->extradata_size*8);

            VAR_5 = ff_mpeg4_decode_picture_header(s, &gb);

        }

        VAR_5 = ff_mpeg4_decode_picture_header(s, &s->gb);

    } else if (s->codec_id == CODEC_ID_H263I) {

        VAR_5 = intel_h263_decode_picture_header(s);

    } else if (s->h263_flv) {

        VAR_5 = flv_h263_decode_picture_header(s);

    } else {

        VAR_5 = h263_decode_picture_header(s);

    }



    if(VAR_5==FRAME_SKIPPED) return get_consumed_bytes(s, VAR_4);



    

    if (VAR_5 < 0){

        av_log(s->VAR_0, AV_LOG_ERROR, "header damaged\n");

        return -1;

    }



    VAR_0->has_b_frames= !s->low_delay;



    if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){

        if(s->stream_codec_tag == AV_RL32("XVID") ||

           s->codec_tag == AV_RL32("XVID") || s->codec_tag == AV_RL32("XVIX") ||

           s->codec_tag == AV_RL32("RMP4"))

            s->xvid_build= -1;

#if 0

        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==1

           && s->padding_bug_score > 0 && s->low_delay) 

            s->xvid_build= -1;

#endif

    }



    if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){

        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)

            s->divx_version= 400; 

    }



    if(s->xvid_build && s->divx_version){

        s->divx_version=

        s->divx_build= 0;

    }



    if(s->workaround_bugs&FF_BUG_AUTODETECT){

        if(s->codec_tag == AV_RL32("XVIX"))

            s->workaround_bugs|= FF_BUG_XVID_ILACE;



        if(s->codec_tag == AV_RL32("UMP4")){

            s->workaround_bugs|= FF_BUG_UMP4;

        }



        if(s->divx_version>=500 && s->divx_build<1814){

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA;

        }



        if(s->divx_version>502 && s->divx_build<1814){

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA2;

        }



        if(s->xvid_build && s->xvid_build<=3)

            s->padding_bug_score= 256*256*256*64;



        if(s->xvid_build && s->xvid_build<=1)

            s->workaround_bugs|= FF_BUG_QPEL_CHROMA;



        if(s->xvid_build && s->xvid_build<=12)

            s->workaround_bugs|= FF_BUG_EDGE;



        if(s->xvid_build && s->xvid_build<=32)

            s->workaround_bugs|= FF_BUG_DC_CLIP;



#define SET_QPEL_FUNC(postfix1, postfix2) \

    s->dsp.put_ ## postfix1 = ff_put_ ## postfix2;\

    s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;\

    s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;



        if(s->lavc_build && s->lavc_build<4653)

            s->workaround_bugs|= FF_BUG_STD_QPEL;



        if(s->lavc_build && s->lavc_build<4655)

            s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;



        if(s->lavc_build && s->lavc_build<4670){

            s->workaround_bugs|= FF_BUG_EDGE;

        }



        if(s->lavc_build && s->lavc_build<=4712)

            s->workaround_bugs|= FF_BUG_DC_CLIP;



        if(s->divx_version)

            s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;



        if(s->divx_version==501 && s->divx_build==20020416)

            s->padding_bug_score= 256*256*256*64;



        if(s->divx_version && s->divx_version<500){

            s->workaround_bugs|= FF_BUG_EDGE;

        }



        if(s->divx_version)

            s->workaround_bugs|= FF_BUG_HPEL_CHROMA;

#if 0

        if(s->divx_version==500)

            s->padding_bug_score= 256*256*256*64;



        





        if(   s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0

           && s->codec_id==CODEC_ID_MPEG4 && s->vo_type==0)

            s->workaround_bugs|= FF_BUG_NO_PADDING;



        if(s->lavc_build && s->lavc_build<4609) 

            s->workaround_bugs|= FF_BUG_NO_PADDING;

#endif

    }



    if(s->workaround_bugs& FF_BUG_STD_QPEL){

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 5], qpel16_mc11_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 7], qpel16_mc31_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][ 9], qpel16_mc12_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][11], qpel16_mc32_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][13], qpel16_mc13_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[0][15], qpel16_mc33_old_c)



        SET_QPEL_FUNC(qpel_pixels_tab[1][ 5], qpel8_mc11_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][ 7], qpel8_mc31_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][ 9], qpel8_mc12_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][11], qpel8_mc32_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][13], qpel8_mc13_old_c)

        SET_QPEL_FUNC(qpel_pixels_tab[1][15], qpel8_mc33_old_c)

    }



    if(VAR_0->debug & FF_DEBUG_BUGS)

        av_log(s->VAR_0, AV_LOG_DEBUG, "bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n",

               s->workaround_bugs, s->lavc_build, s->xvid_build, s->divx_version, s->divx_build,

               s->divx_packed ? "p" : "");



#if 0 

{

    static FILE *f=NULL;

    if(!f) f=fopen("rate_qp_cplx.txt", "w");

    fprintf(f, "%d %d %f\n", VAR_4, s->qscale, VAR_4*(double)s->qscale);

}

#endif



#if HAVE_MMX

    if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && VAR_0->idct_algo == FF_IDCT_AUTO && (mm_flags & FF_MM_MMX)){

        VAR_0->idct_algo= FF_IDCT_XVIDMMX;

        VAR_0->coded_width= 0; 



        s->picture_number=0;

    }

#endif



        

        

        

        



    if (   s->width  != VAR_0->coded_width

        || s->height != VAR_0->coded_height) {

        

        ParseContext pc= s->parse_context; 

        s->parse_context.buffer=0;

        MPV_common_end(s);

        s->parse_context= pc;

    }

    if (!s->context_initialized) {

        avcodec_set_dimensions(VAR_0, s->width, s->height);



        goto retry;

    }



    if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P))

        s->gob_index = ff_h263_get_gob_height(s);



    

    s->current_picture.pict_type= s->pict_type;

    s->current_picture.key_frame= s->pict_type == FF_I_TYPE;



    

    if(s->last_picture_ptr==NULL && (s->pict_type==FF_B_TYPE || s->dropable)) return get_consumed_bytes(s, VAR_4);

    

    if(VAR_0->hurry_up && s->pict_type==FF_B_TYPE) return get_consumed_bytes(s, VAR_4);

    if(   (VAR_0->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)

       || (VAR_0->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)

       ||  VAR_0->skip_frame >= AVDISCARD_ALL)

        return get_consumed_bytes(s, VAR_4);

    

    if(VAR_0->hurry_up>=5) return get_consumed_bytes(s, VAR_4);



    if(s->next_p_frame_damaged){

        if(s->pict_type==FF_B_TYPE)

            return get_consumed_bytes(s, VAR_4);

        else

            s->next_p_frame_damaged=0;

    }



    if((s->VAR_0->flags2 & CODEC_FLAG2_FAST) && s->pict_type==FF_B_TYPE){

        s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;

    }else if((!s->no_rounding) || s->pict_type==FF_B_TYPE){

        s->me.qpel_put= s->dsp.put_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;

    }else{

        s->me.qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;

        s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;

    }



    if(MPV_frame_start(s, VAR_0) < 0)

        return -1;



#ifdef DEBUG

    av_log(VAR_0, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);

#endif



    ff_er_frame_start(s);



    

    

    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){

        VAR_5 = ff_wmv2_decode_secondary_picture_header(s);

        if(VAR_5<0) return VAR_5;

        if(VAR_5==1) goto intrax8_decoded;

    }



    

    s->mb_x=0;

    s->mb_y=0;



    decode_slice(s);

    while(s->mb_y<s->mb_height){

        if(s->msmpeg4_version){

            if(s->slice_height==0 || s->mb_x!=0 || (s->mb_y%s->slice_height)!=0 || get_bits_count(&s->gb) > s->gb.size_in_bits)

                break;

        }else{

            if(ff_h263_resync(s)<0)

                break;

        }



        if(s->msmpeg4_version<4 && s->h263_pred)

            ff_mpeg4_clean_buffers(s);



        decode_slice(s);

    }



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

        if(!CONFIG_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, VAR_4) < 0){

            s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;

        }



    

    if(s->codec_id==CODEC_ID_MPEG4 && s->bitstream_buffer_size==0 && s->divx_packed){

        int VAR_8= get_bits_count(&s->gb)>>3;

        int VAR_9=0;



        if(VAR_4 - VAR_8 > 5){

            int VAR_10;

            for(VAR_10=VAR_8; VAR_10<VAR_4-3; VAR_10++){

                if(VAR_3[VAR_10]==0 && VAR_3[VAR_10+1]==0 && VAR_3[VAR_10+2]==1 && VAR_3[VAR_10+3]==0xB6){

                    VAR_9=1;

                    break;

                }

            }

        }

        if(s->gb.buffer == s->bitstream_buffer && VAR_4>20){ 

            VAR_9=1;

            VAR_8=0;

        }



        if(VAR_9){

            s->bitstream_buffer= av_fast_realloc(

                s->bitstream_buffer,

                &s->allocated_bitstream_buffer_size,

                VAR_4 - VAR_8 + FF_INPUT_BUFFER_PADDING_SIZE);

            memcpy(s->bitstream_buffer, VAR_3 + VAR_8, VAR_4 - VAR_8);

            s->bitstream_buffer_size= VAR_4 - VAR_8;

        }

    }



intrax8_decoded:

    ff_er_frame_end(s);



    MPV_frame_end(s);



assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);

assert(s->current_picture.pict_type == s->pict_type);

    if (s->pict_type == FF_B_TYPE || s->low_delay) {

        *pict= *(AVFrame*)s->current_picture_ptr;

    } else if (s->last_picture_ptr != NULL) {

        *pict= *(AVFrame*)s->last_picture_ptr;

    }



    if(s->last_picture_ptr || s->low_delay){

        *VAR_2 = sizeof(AVFrame);

        ff_print_debug_info(s, pict);

    }



    

    

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



#ifdef PRINT_FRAME_TIME

av_log(VAR_0, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time);

#endif



    return get_consumed_bytes(s, VAR_4);

}

int FUNC_0(AVCodecContext *VAR_0,
void *VAR_1, int *VAR_2,
const uint8_t *VAR_3, int VAR_4)
{ MpegEncContext *s = VAR_0->priv_data; int VAR_5; AVFrame *pict = VAR_1; #ifdef PRINT_FRAME_TIME
uint64_t time= rdtsc(); #endif
#ifdef DEBUG
av_log(VAR_0, AV_LOG_DEBUG, "*****frame %d size=%d\n", VAR_0->frame_number, VAR_4); if(VAR_4>0)
av_log(VAR_0, AV_LOG_DEBUG, "bytes=%x %x %x %x\n", VAR_3[0], VAR_3[1], VAR_3[2], VAR_3[3]); #endif
s->flags= VAR_0->flags; s->flags2= VAR_0->flags2; if (VAR_4 == 0) { if (s->low_delay==0 && s->next_picture_ptr) { *pict= *(AVFrame*)s->next_picture_ptr; s->next_picture_ptr= NULL; *VAR_2 = sizeof(AVFrame); } return 0; } if(s->flags&CODEC_FLAG_TRUNCATED){ int VAR_6; if(CONFIG_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){ VAR_6= ff_mpeg4_find_frame_end(&s->parse_context, VAR_3, VAR_4); }else if(CONFIG_H263_DECODER && s->codec_id==CODEC_ID_H263){ VAR_6= ff_h263_find_frame_end(&s->parse_context, VAR_3, VAR_4); }else{ av_log(s->VAR_0, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n"); return -1; } if( ff_combine_frame(&s->parse_context, VAR_6, (const uint8_t **)&VAR_3, &VAR_4) < 0 )
return VAR_4; } retry:
if(s->bitstream_buffer_size && (s->divx_packed || VAR_4<20)){ init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size*8); }else init_get_bits(&s->gb, VAR_3, VAR_4*8); s->bitstream_buffer_size=0; if (!s->context_initialized) { if (MPV_common_init(s) < 0)
return -1; } if(s->current_picture_ptr==NULL || s->current_picture_ptr->VAR_1[0]){ int VAR_10= ff_find_unused_picture(s, 0); s->current_picture_ptr= &s->picture[VAR_10]; } if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5) { VAR_5= ff_wmv2_decode_picture_header(s); } else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) { VAR_5 = msmpeg4_decode_picture_header(s); } else if (s->h263_pred) { if(s->VAR_0->extradata_size && s->picture_number==0){ GetBitContext gb; init_get_bits(&gb, s->VAR_0->extradata, s->VAR_0->extradata_size*8); VAR_5 = ff_mpeg4_decode_picture_header(s, &gb); } VAR_5 = ff_mpeg4_decode_picture_header(s, &s->gb); } else if (s->codec_id == CODEC_ID_H263I) { VAR_5 = intel_h263_decode_picture_header(s); } else if (s->h263_flv) { VAR_5 = flv_h263_decode_picture_header(s); } else { VAR_5 = h263_decode_picture_header(s); } if(VAR_5==FRAME_SKIPPED) return get_consumed_bytes(s, VAR_4); if (VAR_5 < 0){ av_log(s->VAR_0, AV_LOG_ERROR, "header damaged\n"); return -1; } VAR_0->has_b_frames= !s->low_delay; if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){ if(s->stream_codec_tag == AV_RL32("XVID") ||
s->codec_tag == AV_RL32("XVID") || s->codec_tag == AV_RL32("XVIX") ||
s->codec_tag == AV_RL32("RMP4"))
s->xvid_build= -1; #if 0
if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==1
&& s->padding_bug_score > 0 && s->low_delay)
s->xvid_build= -1; #endif
} if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){ if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)
s->divx_version= 400; } if(s->xvid_build && s->divx_version){ s->divx_version=
s->divx_build= 0; } if(s->workaround_bugs&FF_BUG_AUTODETECT){ if(s->codec_tag == AV_RL32("XVIX"))
s->workaround_bugs|= FF_BUG_XVID_ILACE; if(s->codec_tag == AV_RL32("UMP4")){ s->workaround_bugs|= FF_BUG_UMP4; } if(s->divx_version>=500 && s->divx_build<1814){ s->workaround_bugs|= FF_BUG_QPEL_CHROMA; } if(s->divx_version>502 && s->divx_build<1814){ s->workaround_bugs|= FF_BUG_QPEL_CHROMA2; } if(s->xvid_build && s->xvid_build<=3)
s->padding_bug_score= 256*256*256*64; if(s->xvid_build && s->xvid_build<=1)
s->workaround_bugs|= FF_BUG_QPEL_CHROMA; if(s->xvid_build && s->xvid_build<=12)
s->workaround_bugs|= FF_BUG_EDGE; if(s->xvid_build && s->xvid_build<=32)
s->workaround_bugs|= FF_BUG_DC_CLIP; #define SET_QPEL_FUNC(postfix1, postfix2) \
s->dsp.put_ ## postfix1 = ff_put_ ## postfix2;\ s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;\ s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2; if(s->lavc_build && s->lavc_build<4653)
s->workaround_bugs|= FF_BUG_STD_QPEL; if(s->lavc_build && s->lavc_build<4655)
s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE; if(s->lavc_build && s->lavc_build<4670){ s->workaround_bugs|= FF_BUG_EDGE; } if(s->lavc_build && s->lavc_build<=4712)
s->workaround_bugs|= FF_BUG_DC_CLIP; if(s->divx_version)
s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE; if(s->divx_version==501 && s->divx_build==20020416)
s->padding_bug_score= 256*256*256*64; if(s->divx_version && s->divx_version<500){ s->workaround_bugs|= FF_BUG_EDGE; } if(s->divx_version)
s->workaround_bugs|= FF_BUG_HPEL_CHROMA; #if 0
if(s->divx_version==500)
s->padding_bug_score= 256*256*256*64; if(   s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0
&& s->codec_id==CODEC_ID_MPEG4 && s->vo_type==0)
s->workaround_bugs|= FF_BUG_NO_PADDING; if(s->lavc_build && s->lavc_build<4609)
s->workaround_bugs|= FF_BUG_NO_PADDING; #endif
} if(s->workaround_bugs& FF_BUG_STD_QPEL){ SET_QPEL_FUNC(qpel_pixels_tab[0][ 5], qpel16_mc11_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][ 7], qpel16_mc31_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][ 9], qpel16_mc12_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][11], qpel16_mc32_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][13], qpel16_mc13_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][15], qpel16_mc33_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][ 5], qpel8_mc11_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][ 7], qpel8_mc31_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][ 9], qpel8_mc12_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][11], qpel8_mc32_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][13], qpel8_mc13_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][15], qpel8_mc33_old_c)
} if(VAR_0->debug & FF_DEBUG_BUGS)
av_log(s->VAR_0, AV_LOG_DEBUG, "bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n",
s->workaround_bugs, s->lavc_build, s->xvid_build, s->divx_version, s->divx_build,
s->divx_packed ? "p" : ""); #if 0
{ static FILE *f=NULL; if(!f) f=fopen("rate_qp_cplx.txt", "w"); fprintf(f, "%d %d %f\n", VAR_4, s->qscale, VAR_4*(double)s->qscale); } #endif
#if HAVE_MMX
if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && VAR_0->idct_algo == FF_IDCT_AUTO && (mm_flags & FF_MM_MMX)){ VAR_0->idct_algo= FF_IDCT_XVIDMMX; VAR_0->coded_width= 0; s->picture_number=0; } #endif
if (   s->width  != VAR_0->coded_width
|| s->height != VAR_0->coded_height) { ParseContext pc= s->parse_context; s->parse_context.buffer=0; MPV_common_end(s); s->parse_context= pc; } if (!s->context_initialized) { avcodec_set_dimensions(VAR_0, s->width, s->height); goto retry; } if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P))
s->gob_index = ff_h263_get_gob_height(s); s->current_picture.pict_type= s->pict_type; s->current_picture.key_frame= s->pict_type == FF_I_TYPE; if(s->last_picture_ptr==NULL && (s->pict_type==FF_B_TYPE || s->dropable)) return get_consumed_bytes(s, VAR_4); if(VAR_0->hurry_up && s->pict_type==FF_B_TYPE) return get_consumed_bytes(s, VAR_4); if(   (VAR_0->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)
|| (VAR_0->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)
||  VAR_0->skip_frame >= AVDISCARD_ALL)
return get_consumed_bytes(s, VAR_4); if(VAR_0->hurry_up>=5) return get_consumed_bytes(s, VAR_4); if(s->next_p_frame_damaged){ if(s->pict_type==FF_B_TYPE)
return get_consumed_bytes(s, VAR_4); else
s->next_p_frame_damaged=0; } if((s->VAR_0->flags2 & CODEC_FLAG2_FAST) && s->pict_type==FF_B_TYPE){ s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab; s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab; }else if((!s->no_rounding) || s->pict_type==FF_B_TYPE){ s->me.qpel_put= s->dsp.put_qpel_pixels_tab; s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab; }else{ s->me.qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab; s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab; } if(MPV_frame_start(s, VAR_0) < 0)
return -1; #ifdef DEBUG
av_log(VAR_0, AV_LOG_DEBUG, "qscale=%d\n", s->qscale); #endif
ff_er_frame_start(s); if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){ VAR_5 = ff_wmv2_decode_secondary_picture_header(s); if(VAR_5<0) return VAR_5; if(VAR_5==1) goto intrax8_decoded; } s->mb_x=0; s->mb_y=0; decode_slice(s); while(s->mb_y<s->mb_height){ if(s->msmpeg4_version){ if(s->slice_height==0 || s->mb_x!=0 || (s->mb_y%s->slice_height)!=0 || get_bits_count(&s->gb) > s->gb.size_in_bits)
break; }else{ if(ff_h263_resync(s)<0)
break; } if(s->msmpeg4_version<4 && s->h263_pred)
ff_mpeg4_clean_buffers(s); decode_slice(s); } if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==FF_I_TYPE)
if(!CONFIG_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, VAR_4) < 0){ s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR; } if(s->codec_id==CODEC_ID_MPEG4 && s->bitstream_buffer_size==0 && s->divx_packed){ int VAR_8= get_bits_count(&s->gb)>>3; int VAR_9=0; if(VAR_4 - VAR_8 > 5){ int VAR_10; for(VAR_10=VAR_8; VAR_10<VAR_4-3; VAR_10++){ if(VAR_3[VAR_10]==0 && VAR_3[VAR_10+1]==0 && VAR_3[VAR_10+2]==1 && VAR_3[VAR_10+3]==0xB6){ VAR_9=1; break; } } } if(s->gb.buffer == s->bitstream_buffer && VAR_4>20){ VAR_9=1; VAR_8=0; } if(VAR_9){ s->bitstream_buffer= av_fast_realloc(
s->bitstream_buffer,
&s->allocated_bitstream_buffer_size,
VAR_4 - VAR_8 + FF_INPUT_BUFFER_PADDING_SIZE); memcpy(s->bitstream_buffer, VAR_3 + VAR_8, VAR_4 - VAR_8); s->bitstream_buffer_size= VAR_4 - VAR_8; } } intrax8_decoded:
ff_er_frame_end(s); MPV_frame_end(s); assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type); assert(s->current_picture.pict_type == s->pict_type); if (s->pict_type == FF_B_TYPE || s->low_delay) { *pict= *(AVFrame*)s->current_picture_ptr; } else if (s->last_picture_ptr != NULL) { *pict= *(AVFrame*)s->last_picture_ptr; } if(s->last_picture_ptr || s->low_delay){ *VAR_2 = sizeof(AVFrame); ff_print_debug_info(s, pict); } VAR_0->frame_number = s->picture_number - 1; #ifdef PRINT_FRAME_TIME
av_log(VAR_0, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time); #endif
return get_consumed_bytes(s, VAR_4); }