libmpcodecs/dec_video.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24
  25 #include "mp_msg.h"
  26 #include "help_mp.h"
  27
  28 #include "osdep/timer.h"
  29 #include "osdep/shmem.h"
  30
  31 #include "stream/stream.h"
  32 #include "libmpdemux/demuxer.h"
  33 #include "libmpdemux/parse_es.h"
  34
  35 #include "codec-cfg.h"
  36
  37 #include "libvo/video_out.h"
  38
  39 #include "libmpdemux/stheader.h"
  40 #include "vd.h"
  41 #include "vf.h"
  42
  43 #include "dec_video.h"
  44
  45 #ifdef CONFIG_DYNAMIC_PLUGINS
  46 #include <dlfcn.h>
  47 #endif
  48
  49 // ===================================================================
  50
  51 extern double video_time_usage;
  52 extern double vout_time_usage;
  53
  54 #include "cpudetect.h"
  55
  56 int field_dominance=-1;
  57
  58 int divx_quality=0;
  59
  60 const vd_functions_t* mpvdec=NULL;
  61
  62 int get_video_quality_max(sh_video_t *sh_video){
  63   vf_instance_t* vf=sh_video->vfilter;
  64   if(vf){
  65     int ret=vf->control(vf,VFCTRL_QUERY_MAX_PP_LEVEL,NULL);
  66     if(ret>0){
  67       mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_UsingExternalPP,ret);
  68       return ret;
  69     }
  70   }
  71   if(mpvdec){
  72     int ret=mpvdec->control(sh_video,VDCTRL_QUERY_MAX_PP_LEVEL,NULL);
  73     if(ret>0){
  74       mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_UsingCodecPP,ret);
  75       return ret;
  76     }
  77   }
  78 //  mp_msg(MSGT_DECVIDEO,MSGL_INFO,"[PP] Sorry, postprocessing is not available\n");
  79   return 0;
  80 }
  81
  82 void set_video_quality(sh_video_t *sh_video,int quality){
  83   vf_instance_t* vf=sh_video->vfilter;
  84   if(vf){
  85     int ret=vf->control(vf,VFCTRL_SET_PP_LEVEL, (void*)(&quality));
  86     if(ret==CONTROL_TRUE) return; // success
  87   }
  88   if(mpvdec)
  89     mpvdec->control(sh_video,VDCTRL_SET_PP_LEVEL, (void*)(&quality));
  90 }
  91
  92 int set_video_colors(sh_video_t *sh_video,const char *item,int value)
  93 {
  94     vf_instance_t* vf=sh_video->vfilter;
  95     vf_equalizer_t data;
  96
  97     data.item = item;
  98     data.value = value;
  99
 100     mp_dbg(MSGT_DECVIDEO,MSGL_V,"set video colors %s=%d \n", item, value);
 101     if (vf)
 102     {
 103         int ret = vf->control(vf, VFCTRL_SET_EQUALIZER, &data);
 104         if (ret == CONTROL_TRUE)
 105             return 1;
 106     }
 107     /* try software control */
 108     if(mpvdec)
 109         if( mpvdec->control(sh_video,VDCTRL_SET_EQUALIZER, item, (int *)value)
 110             == CONTROL_OK) return 1;
 111     mp_msg(MSGT_DECVIDEO,MSGL_V,MSGTR_VideoAttributeNotSupportedByVO_VD,item);
 112     return 0;
 113 }
 114
 115 int get_video_colors(sh_video_t *sh_video,const char *item,int *value)
 116 {
 117     vf_instance_t* vf=sh_video->vfilter;
 118     vf_equalizer_t data;
 119
 120     data.item = item;
 121
 122     mp_dbg(MSGT_DECVIDEO,MSGL_V,"get video colors %s \n", item);
 123     if (vf)
 124     {
 125         int ret = vf->control(vf, VFCTRL_GET_EQUALIZER, &data);
 126         if (ret == CONTROL_TRUE){
 127             *value = data.value;
 128             return 1;
 129         }
 130     }
 131     /* try software control */
 132     if(mpvdec) return mpvdec->control(sh_video,VDCTRL_GET_EQUALIZER, item, value);
 133     return 0;
 134 }
 135
 136 int set_rectangle(sh_video_t *sh_video,int param,int value)
 137 {
 138     vf_instance_t* vf=sh_video->vfilter;
 139     int data[] = {param, value};
 140
 141     mp_dbg(MSGT_DECVIDEO,MSGL_V,"set rectangle \n");
 142     if (vf)
 143     {
 144         int ret = vf->control(vf, VFCTRL_CHANGE_RECTANGLE, data);
 145         if (ret)
 146             return 1;
 147     }
 148     return 0;
 149 }
 150
 151 void resync_video_stream(sh_video_t *sh_video)
 152 {
 153     sh_video->timer = 0;
 154     sh_video->next_frame_time = 0;
 155     sh_video->num_buffered_pts = 0;
 156     sh_video->last_pts = MP_NOPTS_VALUE;
 157     if(mpvdec) mpvdec->control(sh_video, VDCTRL_RESYNC_STREAM, NULL);
 158 }
 159
 160 int get_current_video_decoder_lag(sh_video_t *sh_video)
 161 {
 162     int ret;
 163
 164     if (!mpvdec)
 165         return -1;
 166     ret = mpvdec->control(sh_video, VDCTRL_QUERY_UNSEEN_FRAMES, NULL);
 167     if (ret >= 10)
 168         return ret-10;
 169     return -1;
 170 }
 171
 172 void uninit_video(sh_video_t *sh_video){
 173     if(!sh_video->initialized) return;
 174     mp_msg(MSGT_DECVIDEO,MSGL_V,MSGTR_UninitVideoStr,sh_video->codec->drv);
 175     mpvdec->uninit(sh_video);
 176 #ifdef CONFIG_DYNAMIC_PLUGINS
 177     if (sh_video->dec_handle)
 178         dlclose(sh_video->dec_handle);
 179 #endif
 180     vf_uninit_filter_chain(sh_video->vfilter);
 181     sh_video->initialized=0;
 182 }
 183
 184 void vfm_help(void){
 185     int i;
 186     mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_AvailableVideoFm);
 187     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_DRIVERS\n");
 188     mp_msg(MSGT_DECVIDEO,MSGL_INFO,"   vfm:    info:  (comment)\n");
 189     for (i=0; mpcodecs_vd_drivers[i] != NULL; i++)
 190         mp_msg(MSGT_DECVIDEO,MSGL_INFO,"%8s  %s (%s)\n",
 191             mpcodecs_vd_drivers[i]->info->short_name,
 192             mpcodecs_vd_drivers[i]->info->name,
 193             mpcodecs_vd_drivers[i]->info->comment);
 194 }
 195
 196 static int init_video(sh_video_t *sh_video,char* codecname,char* vfm,int status,
 197                stringset_t *selected){
 198     int force = 0;
 199     unsigned int orig_fourcc=sh_video->bih?sh_video->bih->biCompression:0;
 200     sh_video->codec=NULL;
 201     sh_video->vf_initialized=0;
 202     if (codecname && codecname[0] == '+') {
 203       codecname = &codecname[1];
 204       force = 1;
 205     }
 206
 207     while(1){
 208         int i;
 209         int orig_w, orig_h;
 210         // restore original fourcc:
 211         if(sh_video->bih) sh_video->bih->biCompression=orig_fourcc;
 212         if(!(sh_video->codec=find_video_codec(sh_video->format,
 213           sh_video->bih?((unsigned int*) &sh_video->bih->biCompression):NULL,
 214           sh_video->codec,force) )) break;
 215         // ok we found one codec
 216         if(stringset_test(selected, sh_video->codec->name)) continue; // already tried & failed
 217         if(codecname && strcmp(sh_video->codec->name,codecname)) continue; // -vc
 218         if(vfm && strcmp(sh_video->codec->drv,vfm)) continue; // vfm doesn't match
 219         if(!force && sh_video->codec->status<status) continue; // too unstable
 220         stringset_add(selected, sh_video->codec->name); // tagging it
 221         // ok, it matches all rules, let's find the driver!
 222         for (i=0; mpcodecs_vd_drivers[i] != NULL; i++)
 223 //          if(mpcodecs_vd_drivers[i]->info->id==sh_video->codec->driver) break;
 224             if(!strcmp(mpcodecs_vd_drivers[i]->info->short_name,sh_video->codec->drv)) break;
 225         mpvdec=mpcodecs_vd_drivers[i];
 226 #ifdef CONFIG_DYNAMIC_PLUGINS
 227         if (!mpvdec)
 228         {
 229             /* try to open shared decoder plugin */
 230             int buf_len;
 231             char *buf;
 232             vd_functions_t *funcs_sym;
 233             vd_info_t *info_sym;
 234
 235             buf_len = strlen(MPLAYER_LIBDIR)+strlen(sh_video->codec->drv)+16;
 236             buf = malloc(buf_len);
 237             if (!buf)
 238                 break;
 239             snprintf(buf, buf_len, "%s/mplayer/vd_%s.so", MPLAYER_LIBDIR, sh_video->codec->drv);
 240             mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Trying to open external plugin: %s\n", buf);
 241             sh_video->dec_handle = dlopen(buf, RTLD_LAZY);
 242             if (!sh_video->dec_handle)
 243                 break;
 244             snprintf(buf, buf_len, "mpcodecs_vd_%s", sh_video->codec->drv);
 245             funcs_sym = dlsym(sh_video->dec_handle, buf);
 246             if (!funcs_sym || !funcs_sym->info || !funcs_sym->init ||
 247                 !funcs_sym->uninit || !funcs_sym->control || !funcs_sym->decode)
 248                 break;
 249             info_sym = funcs_sym->info;
 250             if (strcmp(info_sym->short_name, sh_video->codec->drv))
 251                 break;
 252             free(buf);
 253             mpvdec = funcs_sym;
 254             mp_msg(MSGT_DECVIDEO, MSGL_V, "Using external decoder plugin (%s/mplayer/vd_%s.so)!\n",
 255                 MPLAYER_LIBDIR, sh_video->codec->drv);
 256         }
 257 #endif
 258         if(!mpvdec){ // driver not available (==compiled in)
 259             mp_msg(MSGT_DECVIDEO,MSGL_WARN,MSGTR_VideoCodecFamilyNotAvailableStr,
 260                 sh_video->codec->name, sh_video->codec->drv);
 261             continue;
 262         }
 263         orig_w = sh_video->bih ? sh_video->bih->biWidth : sh_video->disp_w;
 264         orig_h = sh_video->bih ? sh_video->bih->biHeight : sh_video->disp_h;
 265         sh_video->disp_w = orig_w;
 266         sh_video->disp_h = orig_h;
 267         // it's available, let's try to init!
 268         if(sh_video->codec->flags & CODECS_FLAG_ALIGN16){
 269             // align width/height to n*16
 270                 sh_video->disp_w=(sh_video->disp_w+15)&(~15);
 271                 sh_video->disp_h=(sh_video->disp_h+15)&(~15);
 272         }
 273         if (sh_video->bih) {
 274                 sh_video->bih->biWidth = sh_video->disp_w;
 275                 sh_video->bih->biHeight = sh_video->disp_h;
 276         }
 277         // init()
 278         mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_OpeningVideoDecoder,mpvdec->info->short_name,mpvdec->info->name);
 279         // clear vf init error, it is no longer relevant
 280         if (sh_video->vf_initialized < 0)
 281                 sh_video->vf_initialized = 0;
 282         if(!mpvdec->init(sh_video)){
 283             mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_VDecoderInitFailed);
 284             sh_video->disp_w=orig_w;
 285             sh_video->disp_h=orig_h;
 286             if (sh_video->bih) {
 287                 sh_video->bih->biWidth = sh_video->disp_w;
 288                 sh_video->bih->biHeight = sh_video->disp_h;
 289             }
 290             continue; // try next...
 291         }
 292         // Yeah! We got it!
 293         sh_video->initialized=1;
 294         return 1;
 295     }
 296     return 0;
 297 }
 298
 299 int init_best_video_codec(sh_video_t *sh_video,char** video_codec_list,char** video_fm_list){
 300 char* vc_l_default[2]={"",(char*)NULL};
 301 stringset_t selected;
 302 // hack:
 303 if(!video_codec_list) video_codec_list=vc_l_default;
 304 // Go through the codec.conf and find the best codec...
 305 sh_video->initialized=0;
 306 stringset_init(&selected);
 307 while(!sh_video->initialized && *video_codec_list){
 308   char* video_codec=*(video_codec_list++);
 309   if(video_codec[0]){
 310     if(video_codec[0]=='-'){
 311       // disable this codec:
 312       stringset_add(&selected, video_codec+1);
 313     } else {
 314       // forced codec by name:
 315       mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_ForcedVideoCodec,video_codec);
 316       init_video(sh_video,video_codec,NULL,-1, &selected);
 317     }
 318   } else {
 319     int status;
 320     // try in stability order: UNTESTED, WORKING, BUGGY. never try CRASHING.
 321     if(video_fm_list){
 322       char** fmlist=video_fm_list;
 323       // try first the preferred codec families:
 324       while(!sh_video->initialized && *fmlist){
 325         char* video_fm=*(fmlist++);
 326         mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_TryForceVideoFmtStr,video_fm);
 327         for(status=CODECS_STATUS__MAX;status>=CODECS_STATUS__MIN;--status)
 328             if(init_video(sh_video,NULL,video_fm,status, &selected)) break;
 329       }
 330     }
 331     if(!sh_video->initialized)
 332         for(status=CODECS_STATUS__MAX;status>=CODECS_STATUS__MIN;--status)
 333             if(init_video(sh_video,NULL,NULL,status, &selected)) break;
 334   }
 335 }
 336 stringset_free(&selected);
 337
 338 if(!sh_video->initialized){
 339     mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_CantFindVideoCodec,sh_video->format);
 340     return 0; // failed
 341 }
 342
 343 mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_SelectedVideoCodec,
 344     sh_video->codec->name,sh_video->codec->drv,sh_video->codec->info);
 345 return 1; // success
 346 }
 347
 348 void *decode_video(sh_video_t *sh_video, unsigned char *start, int in_size,
 349                    int drop_frame, double pts)
 350 {
 351     mp_image_t *mpi = NULL;
 352     unsigned int t = GetTimer();
 353     unsigned int t2;
 354     double tt;
 355
 356     if (correct_pts && pts != MP_NOPTS_VALUE) {
 357         int delay = get_current_video_decoder_lag(sh_video);
 358         if (delay >= 0) {
 359             if (delay > sh_video->num_buffered_pts)
 360 #if 0
 361                 // this is disabled because vd_ffmpeg reports the same lag
 362                 // after seek even when there are no buffered frames,
 363                 // leading to incorrect error messages
 364                 mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Not enough buffered pts\n");
 365 #else
 366             ;
 367 #endif
 368             else
 369                 sh_video->num_buffered_pts = delay;
 370         }
 371         if (sh_video->num_buffered_pts ==
 372                         sizeof(sh_video->buffered_pts)/sizeof(double))
 373             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Too many buffered pts\n");
 374         else {
 375             int i, j;
 376             for (i = 0; i < sh_video->num_buffered_pts; i++)
 377                 if (sh_video->buffered_pts[i] < pts)
 378                     break;
 379             for (j = sh_video->num_buffered_pts; j > i; j--)
 380                 sh_video->buffered_pts[j] = sh_video->buffered_pts[j-1];
 381             sh_video->buffered_pts[i] = pts;
 382             sh_video->num_buffered_pts++;
 383         }
 384     }
 385
 386     mpi = mpvdec->decode(sh_video, start, in_size, drop_frame);
 387
 388     //------------------------ frame decoded. --------------------
 389
 390 #if HAVE_MMX
 391     // some codecs are broken, and doesn't restore MMX state :(
 392     // it happens usually with broken/damaged files.
 393     if (gCpuCaps.has3DNow) {
 394         __asm__ volatile ("femms\n\t":::"memory");
 395     }
 396     else if (gCpuCaps.hasMMX) {
 397         __asm__ volatile ("emms\n\t":::"memory");
 398     }
 399 #endif
 400
 401     t2 = GetTimer(); t = t2-t;
 402     tt = t*0.000001f;
 403     video_time_usage += tt;
 404
 405     if (!mpi || drop_frame)
 406         return NULL;    // error / skipped frame
 407
 408     if (field_dominance == 0)
 409         mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 410     else if (field_dominance == 1)
 411         mpi->fields &= ~MP_IMGFIELD_TOP_FIRST;
 412
 413     if (correct_pts) {
 414         if (sh_video->num_buffered_pts) {
 415             sh_video->num_buffered_pts--;
 416             sh_video->pts = sh_video->buffered_pts[sh_video->num_buffered_pts];
 417         }
 418         else {
 419             mp_msg(MSGT_CPLAYER, MSGL_ERR, "No pts value from demuxer to "
 420                    "use for frame!\n");
 421             sh_video->pts = MP_NOPTS_VALUE;
 422         }
 423     }
 424     return mpi;
 425 }
 426
 427 int filter_video(sh_video_t *sh_video, void *frame, double pts)
 428 {
 429     mp_image_t *mpi = frame;
 430     unsigned int t2 = GetTimer();
 431     vf_instance_t *vf = sh_video->vfilter;
 432     // apply video filters and call the leaf vo/ve
 433     int ret = vf->put_image(vf, mpi, pts);
 434     if (ret > 0) {
 435         // draw EOSD first so it ends up below the OSD.
 436         // Note that changing this is will not work right with vf_ass and the
 437         // vos currently always draw the EOSD first in paused mode.
 438 #ifdef CONFIG_ASS
 439         vf->control(vf, VFCTRL_DRAW_EOSD, NULL);
 440 #endif
 441         vf->control(vf, VFCTRL_DRAW_OSD, NULL);
 442     }
 443
 444     t2 = GetTimer()-t2;
 445     vout_time_usage += t2*0.000001;
 446
 447     return ret;
 448 }