1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libavcodec/h264_pthread.c	Tue Sep 25 15:55:33 2012 +0200
     1.3 @@ -0,0 +1,604 @@
     1.4 +#include "config.h"
     1.5 +
     1.6 +#include "h264_types.h"
     1.7 +#include "h264_parser.h"
     1.8 +#include "h264_nal.h"
     1.9 +#include "h264_entropy.h"
    1.10 +#include "h264_rec.h"
    1.11 +#include "h264_misc.h"
    1.12 +// #undef NDEBUG
    1.13 +#include <assert.h>
    1.14 +#include <pthread.h>
    1.15 +
    1.16 +#define XOANON 1
    1.17 +
    1.18 +#ifdef XOANON
    1.19 +static int ed_rec_affinity[40] = { 0,  4,  8, 12, 16, 20, 24, 28, 32, 36,
    1.20 +                                   1,  5,  9, 13, 17, 21, 25, 29, 33, 37,
    1.21 +                                   2,  6, 10, 14, 18, 22, 26, 30, 34, 38,
    1.22 +                                   3,  7, 11, 15, 19, 23, 27, 31, 35, 39 };
    1.23 +static int ed_rec_smt_aff[80]  = { 0,  40,  4, 44,  8, 48, 12, 52, 16, 56, 20, 60, 24, 64, 28, 68, 32, 72, 36, 76,
    1.24 +                                   1,  41,  5, 45,  9, 49, 13, 53, 17, 57, 21, 61, 25, 65, 29, 69, 33, 73, 37, 77,
    1.25 +                                   2,  42,  6, 46, 10, 50, 14, 54, 18, 58, 22, 62, 26, 66, 30, 70, 34, 74, 38, 78,
    1.26 +                                   3,  43,  7, 47, 11, 51, 15, 55, 19, 59, 23, 63, 27, 67, 31, 71, 35, 75, 39, 79 };
    1.27 +#else
    1.28 +static int ed_rec_affinity[10] = { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9};
    1.29 +static int ed_rec_smt_aff[20] = { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, };
    1.30 +#endif
    1.31 +
    1.32 +static int frames=0;
    1.33 +
    1.34 +static void notify_one_worker(H264Context *h){
    1.35 +    pthread_mutex_lock(&h->task_lock);
    1.36 +    pthread_cond_signal(&h->task_cond);
    1.37 +    pthread_mutex_unlock(&h->task_lock);
    1.38 +}
    1.39 +
    1.40 +static void notify_all_workers(H264Context *h){
    1.41 +    pthread_mutex_lock(&h->task_lock);
    1.42 +    pthread_cond_broadcast(&h->task_cond);
    1.43 +    pthread_mutex_unlock(&h->task_lock);
    1.44 +}
    1.45 +
    1.46 +static void push_sbe (SliceBufferQueue *sbq, SliceBufferEntry *sbe, int notify ){
    1.47 +    pthread_mutex_lock(&sbq->lock);
    1.48 +    while (sbq->cnt >= sbq->size)
    1.49 +        pthread_cond_wait(&sbq->cond, &sbq->lock);
    1.50 +    sbq->queue[sbq->fi] = sbe;
    1.51 +    sbq->cnt++;
    1.52 +    sbq->fi++; sbq->fi %= sbq->size;
    1.53 +    if (notify)
    1.54 +        pthread_cond_signal(&sbq->cond);
    1.55 +    pthread_mutex_unlock(&sbq->lock);
    1.56 +}
    1.57 +
    1.58 +static SliceBufferEntry* pop_sbe (SliceBufferQueue *sbq, int block){
    1.59 +    SliceBufferEntry *sbe=NULL;
    1.60 +
    1.61 +    pthread_mutex_lock(&sbq->lock);
    1.62 +    if (block){
    1.63 +        while (sbq->cnt <= 0)
    1.64 +            pthread_cond_wait(&sbq->cond, &sbq->lock);
    1.65 +    }else {
    1.66 +        if (sbq->cnt <= 0)
    1.67 +            goto nonblock;
    1.68 +    }
    1.69 +    sbe = sbq->queue[sbq->fo];
    1.70 +    sbq->cnt--;
    1.71 +    sbq->fo++; sbq->fo %= sbq->size;
    1.72 +    pthread_cond_signal(&sbq->cond);
    1.73 +nonblock:
    1.74 +    pthread_mutex_unlock(&sbq->lock);
    1.75 +
    1.76 +    return sbe;
    1.77 +}
    1.78 +
    1.79 +// static void push_rle (RingLineQueue *rlq, SliceBufferEntry *sbe, int line, int notify){
    1.80 +//
    1.81 +//     //check for free slots
    1.82 +//     pthread_mutex_lock(&rlq->wslock);
    1.83 +//     while (rlq->free <= 0){
    1.84 +//         pthread_cond_wait(&rlq->wscond, &rlq->wslock);
    1.85 +//     }
    1.86 +//     //free slot is available, decrement one in this lock
    1.87 +//     rlq->free--;
    1.88 +//     pthread_mutex_unlock(&rlq->wslock);
    1.89 +//
    1.90 +//     pthread_mutex_lock(&rlq->swlock);
    1.91 +//     rlq->queue[rlq->fi]->sbe=sbe;
    1.92 +//     rlq->queue[rlq->fi]->line=line;
    1.93 +//     rlq->queue[rlq->fi]->mb_cnt=0;
    1.94 +//     rlq->fi++; rlq->fi %= rlq->size;
    1.95 +//     rlq->ready++;
    1.96 +//     if(notify)
    1.97 +//         pthread_cond_signal(&rlq->swcond);
    1.98 +//     pthread_mutex_unlock(&rlq->swlock);
    1.99 +// }
   1.100 +
   1.101 +// static RingLineEntry* pop_rle (RingLineQueue *rlq, int block){
   1.102 +//     RingLineEntry *rle=NULL;
   1.103 +//
   1.104 +//     pthread_mutex_lock(&rlq->swlock);
   1.105 +//     if (block){
   1.106 +//         while (rlq->ready <= 0)
   1.107 +//             pthread_cond_wait(&rlq->swcond, &rlq->swlock);
   1.108 +//     }else {
   1.109 +//         if (rlq->ready <= 0)
   1.110 +//             goto nonblock;
   1.111 +//     }
   1.112 +//     rle = rlq->queue[rlq->fo];
   1.113 +//     rlq->fo++; rlq->fo %= rlq->size;
   1.114 +//     rlq->ready--;
   1.115 +// nonblock:
   1.116 +//     pthread_mutex_unlock(&rlq->swlock);
   1.117 +//
   1.118 +//     return rle;
   1.119 +// }
   1.120 +//
   1.121 +// static void rel_rle (RingLineQueue *rlq){
   1.122 +//     pthread_mutex_lock(&rlq->wslock);
   1.123 +//     rlq->free++;
   1.124 +//     pthread_cond_signal(&rlq->wscond);
   1.125 +//     pthread_mutex_unlock(&rlq->wslock);
   1.126 +// }
   1.127 +
   1.128 +static RingLineEntry* pop_rle (SliceBufferQueue *sbq, RingLineQueue *rlq, int *has_token){
   1.129 +    RingLineEntry *rle=NULL;
   1.130 +    SliceBufferEntry *sbe=NULL;
   1.131 +    int line=-1;
   1.132 +
   1.133 +    pthread_mutex_lock(&sbq->lock);
   1.134 +    if (sbq->cnt <= 0)
   1.135 +        goto unlock;
   1.136 +    sbe = sbq->queue[sbq->fo];
   1.137 +    line = sbe->lines_taken;
   1.138 +
   1.139 +
   1.140 +    pthread_mutex_lock(&rlq->swlock);
   1.141 +    if (!*has_token){
   1.142 +        if (rlq->free <= 0)
   1.143 +            goto unlock2;
   1.144 +        rlq->free--;
   1.145 +        *has_token=1;
   1.146 +    }
   1.147 +    rle = rlq->queue[rlq->fo];
   1.148 +    rlq->fo++; rlq->fo %= rlq->size;
   1.149 +    rle->sbe=sbe;
   1.150 +    rle->line = line;
   1.151 +    rle->mb_cnt =0;
   1.152 +    if (++sbe->lines_taken >= sbe->lines_total){
   1.153 +        sbq->cnt--;
   1.154 +        sbq->fo++; sbq->fo %= sbq->size;
   1.155 +        pthread_cond_signal(&sbq->cond);
   1.156 +    }
   1.157 +unlock2:
   1.158 +    pthread_mutex_unlock(&rlq->swlock);
   1.159 +unlock:
   1.160 +    pthread_mutex_unlock(&sbq->lock);
   1.161 +
   1.162 +
   1.163 +    return rle;
   1.164 +}
   1.165 +
   1.166 +static void rel_rle (RingLineQueue *rlq, int *rec_token){
   1.167 +    pthread_mutex_lock(&rlq->swlock);
   1.168 +    rlq->free++;
   1.169 +    *rec_token=0;
   1.170 +//     pthread_cond_signal(&rlq->swcond);
   1.171 +    pthread_mutex_unlock(&rlq->swlock);
   1.172 +
   1.173 +}
   1.174 +
   1.175 +//get either a entropy or a line reconstruct task
   1.176 +static void pop_next_task(H264Context *h, SliceBufferEntry **psbe, RingLineEntry **prle, int *rec_token){
   1.177 +
   1.178 +    pthread_mutex_lock(&h->task_lock);
   1.179 +
   1.180 +    for(;;){
   1.181 +        if ( (*psbe = pop_sbe(&h->sb_q[ENTROPY], 0)) ){
   1.182 +            if (*rec_token){
   1.183 +                rel_rle(&h->rl_q, rec_token);
   1.184 +                pthread_cond_signal(&h->task_cond);
   1.185 +            }
   1.186 +            break;
   1.187 +        }
   1.188 +        else if ( (*prle = pop_rle(&h->sb_q[MBDEC], &h->rl_q, rec_token)) )
   1.189 +            break;
   1.190 +        pthread_cond_wait(&h->task_cond, &h->task_lock);
   1.191 +    }
   1.192 +
   1.193 +    pthread_mutex_unlock(&h->task_lock);
   1.194 +}
   1.195 +
   1.196 +void *parse_thread(void *arg){
   1.197 +    H264Context *h = (H264Context *) arg;
   1.198 +    ParserContext *pc = get_parse_context(h->ifile);
   1.199 +    NalContext *nc = get_nal_context(h->width, h->height);
   1.200 +    H264Slice *s;
   1.201 +    SliceBufferEntry *sbe = NULL;
   1.202 +
   1.203 +    while(!pc->final_frame && frames++ <h->num_frames && !h->quit){
   1.204 +        sbe = get_sb_entry(h);
   1.205 +
   1.206 +        av_read_frame_internal(pc, &sbe->gb);
   1.207 +        s = &sbe->slice;
   1.208 +
   1.209 +        decode_nal_units(nc, s, &sbe->gb);
   1.210 +
   1.211 +        push_sbe(&h->sb_q[ENTROPY], sbe, 0);
   1.212 +        notify_one_worker(h);
   1.213 +    }
   1.214 +
   1.215 +    if (!h->no_mbd){
   1.216 +        sbe = get_sb_entry(h);
   1.217 +        sbe->state=-1;
   1.218 +        sbe->slice.coded_pic_num=nc->coded_pic_num;
   1.219 +        sbe->lines_total=h->threads;
   1.220 +
   1.221 +        push_sbe(&h->sb_q[REORDER], sbe, 1);
   1.222 +    }else{
   1.223 +        for (int i=0; i<h->threads; i++){
   1.224 +            sbe = get_sb_entry(h);
   1.225 +            sbe->state=-1;
   1.226 +            push_sbe(&h->sb_q[ENTROPY], sbe, 1);
   1.227 +            notify_one_worker(h);
   1.228 +        }
   1.229 +    }
   1.230 +    free_nal_context(nc);
   1.231 +    free_parse_context(pc);
   1.232 +
   1.233 +    pthread_exit(NULL);
   1.234 +    return NULL;
   1.235 +}
   1.236 +
   1.237 +int decode_slice_entropy(EntropyContext *ec, SliceBufferEntry *sbe){
   1.238 +    int i,j;
   1.239 +    H264Slice *s = &sbe->slice;
   1.240 +    GetBitContext *gb = &sbe->gb;
   1.241 +    CABACContext *c = &ec->c;
   1.242 +    H264Mb *mbs = sbe->mbs;
   1.243 +
   1.244 +    if( !s->pps.cabac ){
   1.245 +        av_log(AV_LOG_ERROR, "Only cabac encoded streams are supported\n");
   1.246 +        return -1;
   1.247 +    }
   1.248 +
   1.249 +    init_dequant_tables(s, ec);
   1.250 +    ec->curr_qscale = s->qscale;
   1.251 +    ec->last_qscale_diff = 0;
   1.252 +    ec->chroma_qp[0] = get_chroma_qp( s, 0, s->qscale);
   1.253 +    ec->chroma_qp[1] = get_chroma_qp( s, 1, s->qscale);
   1.254 +
   1.255 +    /* realign */
   1.256 +    align_get_bits( gb );
   1.257 +    /* init cabac */
   1.258 +    ff_init_cabac_decoder( c, gb->buffer + get_bits_count(gb)/8, (get_bits_left(gb) + 7)/8);
   1.259 +
   1.260 +    ff_h264_init_cabac_states(ec, s, c);
   1.261 +
   1.262 +    for(j=0; j<ec->mb_height; j++){
   1.263 +        init_entropy_buf(ec, s, j);
   1.264 +        for(i=0; i<ec->mb_width; i++){
   1.265 +            int eos,ret;
   1.266 +            H264Mb *m = &mbs[i + j*ec->mb_width];
   1.267 +            //memset(m, 0, sizeof(H264Mb));
   1.268 +            m->mb_x=i;
   1.269 +            m->mb_y=j;
   1.270 +            ec->m = m;
   1.271 +
   1.272 +            ret = ff_h264_decode_mb_cabac(ec, s, c);
   1.273 +            eos = get_cabac_terminate( c); (void) eos;
   1.274 +
   1.275 +            if( ret < 0 || c->bytestream > c->bytestream_end + 2) {
   1.276 +                av_log(AV_LOG_ERROR, "error while decoding MB %d %d, bytestream (%td)\n", m->mb_x, m->mb_y, c->bytestream_end - c->bytestream);
   1.277 +                return -1;
   1.278 +            }
   1.279 +        }
   1.280 +    }
   1.281 +
   1.282 +    return 0;
   1.283 +}
   1.284 +
   1.285 +static int decode_slice_mb(MBRecContext *d, RingLineEntry *rle, int frames){
   1.286 +    SliceBufferEntry *sbe= rle->sbe;
   1.287 +    H264Slice *s = &sbe->slice;
   1.288 +    H264Mb *mbs = sbe->mbs;
   1.289 +
   1.290 +    int mb_width= d->mb_width;
   1.291 +    int i;
   1.292 +    const int line = rle->line;
   1.293 +
   1.294 +    init_mbrec_context(d, d->mrs, s, line);
   1.295 +
   1.296 +    H264Mb *m = &mbs[line*mb_width];
   1.297 +    d->top=rle->prev_line->top;
   1.298 +    d->top_next=rle->top;
   1.299 +
   1.300 +//     assert(rle->mb_cnt ==0);
   1.301 +    for(i=0; i< mb_width; i++){
   1.302 +        if (frames || line>0){
   1.303 +            while (rle->mb_cnt >= rle->prev_line->mb_cnt -1);
   1.304 +        }
   1.305 +        h264_decode_mb_internal( d, d->mrs, s, &m[i]);
   1.306 +        rle->mb_cnt++;
   1.307 +    }
   1.308 +    draw_edges(d, s, line);
   1.309 +
   1.310 +    return 0;
   1.311 +}
   1.312 +
   1.313 +// static int decode_slice_mb_static(MBRecContext *d, H264Slice *s, RLThreadContext *r, RLThreadContext *rp,  int frames){
   1.314 +//     int mb_height= d->mb_height;
   1.315 +//     int mb_width= d->mb_width;
   1.316 +//     int thread_num = r->thread_num;
   1.317 +//     int thread_total = r->thread_total;
   1.318 +//     int i;
   1.319 +//     int j = thread_num;
   1.320 +//
   1.321 +//     r->mb_cnt=frames* mb_height*mb_width;
   1.322 +//     for(; j<mb_height; j+=thread_total){
   1.323 +//         H264Mb *m = &s->mbs[j*mb_width];
   1.324 +//         for(i=0; i< mb_width; i++){
   1.325 +//             if (j>0){
   1.326 +//                 while (r->mb_cnt- (thread_num? 0:mb_width) >= rp->mb_cnt-1);
   1.327 +//             }
   1.328 +//             h264_decode_mb_internal(d, s, m++);
   1.329 +//             r->mb_cnt++;
   1.330 +//         }
   1.331 +//         draw_edges(d, s, j);
   1.332 +//     }
   1.333 +//     return 0;
   1.334 +// }
   1.335 +
   1.336 +static void *ed_rec_thread(void *arg){
   1.337 +    H264Context *h =  (H264Context*) arg;
   1.338 +    EntropyContext *ec=NULL;
   1.339 +    MBRecContext *mrc=NULL;
   1.340 +
   1.341 +    RingLineEntry *rle=NULL;
   1.342 +    SliceBufferEntry *sbe=NULL;
   1.343 +    H264Slice *s;
   1.344 +    int rec_token=0;
   1.345 +
   1.346 +    if (!h->no_mbd){
   1.347 +        mrc = get_mbrec_context(h);
   1.348 +    }
   1.349 +    ec = get_entropy_context(h);
   1.350 +
   1.351 +    for(;;){
   1.352 +        pop_next_task(h, &sbe, &rle, &rec_token);
   1.353 +        if (sbe){
   1.354 +            if (h->no_mbd && sbe->state<0){
   1.355 +                break;
   1.356 +            }
   1.357 +            if (!sbe->initialized){
   1.358 +                init_sb_entry(h, sbe);
   1.359 +            }
   1.360 +            decode_slice_entropy(ec, sbe);
   1.361 +
   1.362 +            if (h->no_mbd){
   1.363 +                release_sb_entry(h, sbe);
   1.364 +                sbe=NULL;
   1.365 +            } else {
   1.366 +                push_sbe(&h->sb_q[REORDER], sbe, 1);
   1.367 +            }
   1.368 +        } else if (rle){
   1.369 +            if (rle->sbe->state<0)
   1.370 +                break;
   1.371 +            s = &rle->sbe->slice;
   1.372 +
   1.373 +            decode_slice_mb(mrc, rle, s->coded_pic_num);
   1.374 +
   1.375 +            if (rle->line == h->mb_height-1){
   1.376 +                push_sbe(&h->sb_q[OUTPUT], rle->sbe, 1);
   1.377 +            }
   1.378 +            rle->mb_cnt++;
   1.379 +        }
   1.380 +    }
   1.381 +
   1.382 +    //make sure threads quit in order of rle assignment
   1.383 +    if (!h->no_mbd){
   1.384 +        while (rle->prev_line->mb_cnt <= h->mb_width);
   1.385 +        rel_rle(&h->rl_q, &rec_token);
   1.386 +        notify_one_worker(h);
   1.387 +        rle->mb_cnt = h->mb_width +1;
   1.388 +        if (rle->line == h->threads-1){
   1.389 +            push_sbe(&h->sb_q[OUTPUT], rle->sbe, 1);
   1.390 +        }
   1.391 +
   1.392 +        free_mbrec_context(mrc);
   1.393 +    }
   1.394 +
   1.395 +    free_entropy_context(ec);
   1.396 +
   1.397 +    pthread_exit(NULL);
   1.398 +    return NULL;
   1.399 +}
   1.400 +
   1.401 +static void *reorder_thread(void *arg){
   1.402 +    H264Context *h = (H264Context *) arg;
   1.403 +    int i;
   1.404 +    SliceBufferEntry *reorder[h->sb_size];
   1.405 +    SliceBufferEntry *sbe, *next_sbe;
   1.406 +    H264Slice *s;
   1.407 +    int reorder_cnt=0;
   1.408 +    unsigned next_pic_num=0;
   1.409 +
   1.410 +    for(;;){
   1.411 +
   1.412 +        sbe = pop_sbe(&h->sb_q[REORDER], 1);
   1.413 +
   1.414 +        s = &sbe->slice;
   1.415 +        for(i=reorder_cnt; i>0; i--){
   1.416 +            if (s->coded_pic_num < reorder[i-1]->slice.coded_pic_num)
   1.417 +                break;
   1.418 +            reorder[i]=reorder[i-1];
   1.419 +        }
   1.420 +        reorder[i]=sbe;
   1.421 +
   1.422 +        while(reorder_cnt>=0){
   1.423 +            if (next_pic_num!=reorder[reorder_cnt]->slice.coded_pic_num){
   1.424 +                break;
   1.425 +            }
   1.426 +            next_sbe = reorder[reorder_cnt];
   1.427 +            H264Slice *es = &next_sbe->slice;
   1.428 +
   1.429 +            if (next_sbe->state<0)
   1.430 +                goto end;
   1.431 +
   1.432 +            for (int i=0; i<2; i++){
   1.433 +                for(int j=0; j< es->ref_count[i]; j++){
   1.434 +                    if (es->ref_list_cpn[i][j] ==-1)
   1.435 +                        continue;
   1.436 +                    int k;
   1.437 +                    for (k=0; k<h->max_dpb_cnt; k++){
   1.438 +                        if(h->dpb[k].reference >= 2 && h->dpb[k].cpn == es->ref_list_cpn[i][j]){
   1.439 +                            es->dp_ref_list[i][j] = &h->dpb[k];
   1.440 +                            break;
   1.441 +                        }
   1.442 +                    }
   1.443 +                }
   1.444 +            }
   1.445 +            next_sbe->dp = get_dpb_entry(h, es);
   1.446 +
   1.447 +            push_sbe(&h->sb_q[MBDEC], next_sbe, 0);
   1.448 +            notify_all_workers(h);
   1.449 +
   1.450 +//             for (int i=0; i< h->mb_height; i++){
   1.451 +//                 push_rle(&h->rl_q, next_sbe, i, 0);
   1.452 +//                 notify_one_worker(h);
   1.453 +//             }
   1.454 +
   1.455 +
   1.456 +            next_pic_num++;
   1.457 +            reorder_cnt--;
   1.458 +        }
   1.459 +        reorder_cnt++;
   1.460 +    }
   1.461 +
   1.462 +end:
   1.463 +    {
   1.464 +        push_sbe(&h->sb_q[MBDEC], next_sbe, 0);
   1.465 +        notify_all_workers(h);
   1.466 +        if (h->no_mbd){
   1.467 +            push_sbe(&h->sb_q[OUTPUT], next_sbe, 1);
   1.468 +        }
   1.469 +//         for (int i=0; i< h->threads; i++){
   1.470 +//             push_rle(&h->rl_q, next_sbe, i, 0);
   1.471 +//             notify_one_worker(h);
   1.472 +//         }
   1.473 +    }
   1.474 +
   1.475 +    pthread_exit(NULL);
   1.476 +    return NULL;
   1.477 +}
   1.478 +
   1.479 +void create_ed_rec_threads(H264Context *h){
   1.480 +    cpu_set_t cpuset;
   1.481 +    int* aff;
   1.482 +
   1.483 +    if (h->setaff){
   1.484 +        aff = h->smt ? ed_rec_smt_aff : ed_rec_affinity ;
   1.485 +        for (int i=0; i<h->threads; i++){
   1.486 +            pthread_attr_init(&h->ed_rec_attr[i]);
   1.487 +            CPU_ZERO(&cpuset);
   1.488 +            CPU_SET(aff[i], &cpuset);
   1.489 +            pthread_attr_setaffinity_np(&h->ed_rec_attr[i], sizeof(cpu_set_t), &cpuset);
   1.490 +            pthread_create(&h->ed_rec_thr[i], &h->ed_rec_attr[i], ed_rec_thread, h);
   1.491 +        }
   1.492 +    } else {
   1.493 +        for (int i=0; i<h->threads; i++){
   1.494 +            pthread_create(&h->ed_rec_thr[i], NULL, ed_rec_thread, h);
   1.495 +        }
   1.496 +    }
   1.497 +}
   1.498 +
   1.499 +void join_ed_rec_threads(H264Context *h){
   1.500 +    for (int i=0; i< h->threads; i++){
   1.501 +        pthread_join(h->ed_rec_thr[i], NULL);
   1.502 +    }
   1.503 +}
   1.504 +
   1.505 +void *output_thread(void *arg){
   1.506 +    H264Context *h = (H264Context *) arg;
   1.507 +
   1.508 +    OutputContext *oc = get_output_context( h );
   1.509 +
   1.510 +    SliceBufferEntry *sbe = NULL;
   1.511 +    H264Slice *s=NULL;
   1.512 +    for(;;) {
   1.513 +        DecodedPicture *out, *dp;
   1.514 +        sbe = pop_sbe(&h->sb_q[OUTPUT], 1);
   1.515 +
   1.516 +        if (sbe->state <0)
   1.517 +            break;
   1.518 +
   1.519 +        s = &sbe->slice;
   1.520 +        for (int i=0; i<s->release_cnt; i++){
   1.521 +            for(int j=0; j<h->max_dpb_cnt; j++){
   1.522 +                if(h->dpb[j].cpn== s->release_ref_cpn[i]){
   1.523 +                    release_dpb_entry(h, &h->dpb[j], 2);
   1.524 +                    break;
   1.525 +                }
   1.526 +            }
   1.527 +        }
   1.528 +
   1.529 +        dp=sbe->dp;
   1.530 +        release_sb_entry(h, sbe);
   1.531 +
   1.532 +        out =output_frame(h, oc, dp, h->ofile, h->frame_width, h->frame_height);
   1.533 +        if (out){
   1.534 +            release_dpb_entry(h, out, 1);
   1.535 +        }
   1.536 +
   1.537 +        print_report(oc->frame_number, oc->video_size, 0, h->verbose);
   1.538 +
   1.539 +    }
   1.540 +    /* at the end of stream, we must flush the decoder buffers */
   1.541 +    while (output_frame(h, oc, NULL, h->ofile, h->frame_width, h->frame_height));
   1.542 +    print_report(oc->frame_number, oc->video_size, 1, h->verbose);
   1.543 +
   1.544 +    free_output_context(oc);
   1.545 +
   1.546 +    pthread_exit(NULL);
   1.547 +    return NULL;
   1.548 +}
   1.549 +
   1.550 +/*
   1.551 +* The following code is the main loop of the file converter
   1.552 +*/
   1.553 +int h264_decode_pthread(H264Context *h) {
   1.554 +    pthread_t parse_thr, reorder_thr, output_thr;
   1.555 +
   1.556 +    av_start_timer();
   1.557 +
   1.558 +    pthread_create(&parse_thr, NULL, parse_thread, h);
   1.559 +    if (!h->no_mbd){
   1.560 +        pthread_create(&reorder_thr, NULL, reorder_thread, h);
   1.561 +        pthread_create(&output_thr, NULL, output_thread, h);
   1.562 +    }
   1.563 +#if HAVE_LIBSDL2
   1.564 +    pthread_t sdl_thr;
   1.565 +    if (h->display){
   1.566 +        pthread_create(&sdl_thr, NULL, sdl_thread, h);
   1.567 +    }
   1.568 +#endif
   1.569 +    create_ed_rec_threads(h);
   1.570 +
   1.571 +
   1.572 +    if (h->rl_side_touch){
   1.573 +        pthread_mutex_lock(&h->ilock);
   1.574 +        while (h->init_threads< h->threads)
   1.575 +            pthread_cond_wait(&h->icond, &h->ilock);
   1.576 +        pthread_mutex_unlock(&h->ilock);
   1.577 +
   1.578 +        pthread_mutex_lock(&h->tlock);
   1.579 +        h->touch_start =1;
   1.580 +        pthread_cond_broadcast(&h->tcond);
   1.581 +        pthread_mutex_unlock(&h->tlock);
   1.582 +
   1.583 +        pthread_mutex_lock(&h->tdlock);
   1.584 +        while (h->touch_done < h->threads)
   1.585 +            pthread_cond_wait(&h->tdcond, &h->tdlock);
   1.586 +        pthread_mutex_unlock(&h->tdlock);
   1.587 +
   1.588 +        pthread_mutex_lock(&h->slock);
   1.589 +        h->start =1;
   1.590 +        pthread_cond_broadcast(&h->scond);
   1.591 +        pthread_mutex_unlock(&h->slock);
   1.592 +    }
   1.593 +    join_ed_rec_threads(h);
   1.594 +    pthread_join(parse_thr, NULL);
   1.595 +    if (!h->no_mbd){
   1.596 +        pthread_join(reorder_thr, NULL);
   1.597 +        pthread_join(output_thr, NULL);
   1.598 +    }
   1.599 +#if HAVE_LIBSDL2
   1.600 +    if (h->display)
   1.601 +        signal_sdl_exit(h);
   1.602 +        pthread_join(sdl_thr, NULL);
   1.603 +#endif
   1.604 +
   1.605 +
   1.606 +    return 0;
   1.607 +}