libmpcodecs/vd_ffmpeg.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <assert.h>
   4 #include <time.h>
   5
   6 #include "config.h"
   7 #include "mp_msg.h"
   8 #include "help_mp.h"
   9 #include "av_opts.h"
  10
  11 #include "libavutil/common.h"
  12 #include "libavutil/intreadwrite.h"
  13 #include "mpbswap.h"
  14
  15 #include "vd_internal.h"
  16
  17 static vd_info_t info = {
  18         "FFmpeg's libavcodec codec family",
  19         "ffmpeg",
  20         "A'rpi",
  21         "A'rpi, Michael, Alex",
  22         "native codecs"
  23 };
  24
  25 LIBVD_EXTERN(ffmpeg)
  26
  27 #include "libavcodec/avcodec.h"
  28
  29 #if CONFIG_XVMC
  30 #include "xvmc_render.h"
  31 #endif
  32
  33 int avcodec_initialized=0;
  34
  35 typedef struct {
  36     AVCodecContext *avctx;
  37     AVFrame *pic;
  38     enum PixelFormat pix_fmt;
  39     int do_slices;
  40     int do_dr1;
  41     int vo_initialized;
  42     int best_csp;
  43     int b_age;
  44     int ip_age[2];
  45     int qp_stat[32];
  46     double qp_sum;
  47     double inv_qp_sum;
  48     int ip_count;
  49     int b_count;
  50     AVRational last_sample_aspect_ratio;
  51 } vd_ffmpeg_ctx;
  52
  53 //#ifdef CONFIG_LIBPOSTPROC
  54 //unsigned int lavc_pp=0;
  55 //#endif
  56
  57 #include "m_option.h"
  58
  59 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  60 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  61
  62 #if CONFIG_XVMC
  63 static enum PixelFormat get_format(struct AVCodecContext * avctx,
  64                                    const enum PixelFormat * pix_fmt);
  65 static int mc_get_buffer(AVCodecContext *avctx, AVFrame *pic);
  66 static void mc_release_buffer(AVCodecContext *avctx, AVFrame *pic);
  67 static void mc_render_slice(struct AVCodecContext *s,
  68                         AVFrame *src, int offset[4],
  69                         int y, int type, int height);
  70 #endif
  71
  72 static int lavc_param_workaround_bugs= FF_BUG_AUTODETECT;
  73 static int lavc_param_error_resilience=2;
  74 static int lavc_param_error_concealment=3;
  75 static int lavc_param_gray=0;
  76 static int lavc_param_vstats=0;
  77 static int lavc_param_idct_algo=0;
  78 static int lavc_param_debug=0;
  79 static int lavc_param_vismv=0;
  80 static int lavc_param_skip_top=0;
  81 static int lavc_param_skip_bottom=0;
  82 static int lavc_param_fast=0;
  83 static int lavc_param_lowres=0;
  84 static char *lavc_param_lowres_str=NULL;
  85 static char *lavc_param_skip_loop_filter_str = NULL;
  86 static char *lavc_param_skip_idct_str = NULL;
  87 static char *lavc_param_skip_frame_str = NULL;
  88 static int lavc_param_threads=1;
  89 static int lavc_param_bitexact=0;
  90 static char *lavc_avopt = NULL;
  91
  92 const m_option_t lavc_decode_opts_conf[]={
  93         {"bug", &lavc_param_workaround_bugs, CONF_TYPE_INT, CONF_RANGE, -1, 999999, NULL},
  94         {"er", &lavc_param_error_resilience, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  95         {"gray", &lavc_param_gray, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_PART, NULL},
  96         {"idct", &lavc_param_idct_algo, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  97         {"ec", &lavc_param_error_concealment, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  98         {"vstats", &lavc_param_vstats, CONF_TYPE_FLAG, 0, 0, 1, NULL},
  99         {"debug", &lavc_param_debug, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
 100         {"vismv", &lavc_param_vismv, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
 101         {"st", &lavc_param_skip_top, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
 102         {"sb", &lavc_param_skip_bottom, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
 103 #ifdef CODEC_FLAG2_FAST
 104         {"fast", &lavc_param_fast, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG2_FAST, NULL},
 105 #endif
 106         {"lowres", &lavc_param_lowres_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 107         {"skiploopfilter", &lavc_param_skip_loop_filter_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 108         {"skipidct", &lavc_param_skip_idct_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 109         {"skipframe", &lavc_param_skip_frame_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 110         {"threads", &lavc_param_threads, CONF_TYPE_INT, CONF_RANGE, 1, 8, NULL},
 111         {"bitexact", &lavc_param_bitexact, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_BITEXACT, NULL},
 112         {"o", &lavc_avopt, CONF_TYPE_STRING, 0, 0, 0, NULL},
 113         {NULL, NULL, 0, 0, 0, 0, NULL}
 114 };
 115
 116 static enum AVDiscard str2AVDiscard(char *str) {
 117     if (!str)                               return AVDISCARD_DEFAULT;
 118     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
 119     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
 120     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
 121     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 122     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 123     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 124     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 125     return AVDISCARD_DEFAULT;
 126 }
 127
 128 // to set/get/query special features/parameters
 129 static int control(sh_video_t *sh,int cmd,void* arg,...){
 130     vd_ffmpeg_ctx *ctx = sh->context;
 131     AVCodecContext *avctx = ctx->avctx;
 132     switch(cmd){
 133     case VDCTRL_QUERY_FORMAT:
 134         {
 135             int format =(*((int*)arg));
 136             if( format == ctx->best_csp ) return CONTROL_TRUE;//supported
 137         // possible conversions:
 138             switch( format ){
 139         case IMGFMT_YV12:
 140         case IMGFMT_IYUV:
 141         case IMGFMT_I420:
 142             // "converted" using pointer/stride modification
 143             if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
 144             if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 145             break;
 146 #if CONFIG_XVMC
 147         case IMGFMT_XVMC_IDCT_MPEG2:
 148         case IMGFMT_XVMC_MOCO_MPEG2:
 149             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 150 #endif
 151         }
 152         return CONTROL_FALSE;
 153         }
 154     break;
 155     case VDCTRL_RESYNC_STREAM:
 156         avcodec_flush_buffers(avctx);
 157         return CONTROL_TRUE;
 158     case VDCTRL_QUERY_UNSEEN_FRAMES:
 159         return avctx->has_b_frames + 10;
 160     }
 161     return CONTROL_UNKNOWN;
 162 }
 163
 164 void mp_msp_av_log_callback(void* ptr, int level, const char* fmt, va_list vl)
 165 {
 166     static int print_prefix=1;
 167     AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
 168     int type= MSGT_FIXME;
 169     int mp_level;
 170     char buf[256];
 171
 172     switch(level){
 173     case AV_LOG_DEBUG:  mp_level= MSGL_V   ; break;
 174     case AV_LOG_INFO :  mp_level= MSGL_INFO; break;
 175     case AV_LOG_ERROR:  mp_level= MSGL_ERR ; break;
 176     default          :  mp_level= MSGL_ERR ; break;
 177     }
 178
 179     if (!mp_msg_test(type, mp_level)) return;
 180
 181     if(ptr){
 182         if(!strcmp(avc->class_name, "AVCodecContext")){
 183             AVCodecContext * s= ptr;
 184             if(s->codec){
 185                 if(s->codec->type == CODEC_TYPE_AUDIO){
 186                     if(s->codec->decode)
 187                         type= MSGT_DECAUDIO;
 188                 }else if(s->codec->type == CODEC_TYPE_VIDEO){
 189                     if(s->codec->decode)
 190                         type= MSGT_DECVIDEO;
 191                 }
 192                 //FIXME subtitles, encoders (what msgt for them? there is no appropriate ...)
 193             }
 194         }else if(!strcmp(avc->class_name, "AVFormatContext")){
 195 #if 0 //needs libavformat include FIXME iam too lazy to do this cleanly,probably the whole should be moved out of this file ...
 196             AVFormatContext * s= ptr;
 197             if(s->iformat)
 198                 type= MSGT_DEMUXER;
 199             else if(s->oformat)
 200                 type= MSGT_MUXER;
 201 #endif
 202         }
 203     }
 204
 205     if(print_prefix && avc) {
 206         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 207     }
 208
 209     print_prefix= strchr(fmt, '\n') != NULL;
 210     vsnprintf(buf, sizeof(buf), fmt, vl);
 211     mp_msg(type, mp_level, buf);
 212 }
 213
 214 // init driver
 215 static int init(sh_video_t *sh){
 216     AVCodecContext *avctx;
 217     vd_ffmpeg_ctx *ctx;
 218     AVCodec *lavc_codec;
 219     int lowres_w=0;
 220     int do_vis_debug= lavc_param_vismv || (lavc_param_debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 221
 222     if(!avcodec_initialized){
 223       avcodec_init();
 224       avcodec_register_all();
 225       avcodec_initialized=1;
 226       av_log_set_callback(mp_msp_av_log_callback);
 227     }
 228
 229     ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
 230     if (!ctx)
 231         return 0;
 232     memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
 233
 234     lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
 235     if(!lavc_codec){
 236         mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingLAVCcodec,sh->codec->dll);
 237         uninit(sh);
 238         return 0;
 239     }
 240
 241     if(vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 242         ctx->do_slices=1;
 243
 244     if(lavc_codec->capabilities&CODEC_CAP_DR1 && !do_vis_debug && lavc_codec->id != CODEC_ID_H264 && lavc_codec->id != CODEC_ID_INTERPLAY_VIDEO && lavc_codec->id != CODEC_ID_ROQ)
 245         ctx->do_dr1=1;
 246     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 247     ctx->ip_count= ctx->b_count= 0;
 248
 249     ctx->pic = avcodec_alloc_frame();
 250     ctx->avctx = avcodec_alloc_context();
 251     avctx = ctx->avctx;
 252
 253 #if CONFIG_XVMC
 254
 255 #ifdef CODEC_CAP_HWACCEL
 256     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL){
 257 #else
 258     if(lavc_codec->id == CODEC_ID_MPEG2VIDEO_XVMC){
 259 #endif /* CODEC_CAP_HWACCEL */
 260         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedCodec);
 261         assert(ctx->do_dr1);//these are must to!
 262         assert(ctx->do_slices); //it is (vo_)ffmpeg bug if this fails
 263         avctx->flags|= CODEC_FLAG_EMU_EDGE;//do i need that??!!
 264         avctx->get_format= get_format;//for now only this decoder will use it
 265         avctx->get_buffer= mc_get_buffer;
 266         avctx->release_buffer= mc_release_buffer;
 267         avctx->draw_horiz_band = mc_render_slice;
 268         avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 269     }else
 270 #endif /* CONFIG_XVMC */
 271     if(ctx->do_dr1){
 272         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 273         avctx->get_buffer= get_buffer;
 274         avctx->release_buffer= release_buffer;
 275         avctx->reget_buffer= get_buffer;
 276     }
 277
 278 #ifdef CODEC_FLAG_NOT_TRUNCATED
 279     avctx->flags|= CODEC_FLAG_NOT_TRUNCATED;
 280 #endif
 281     avctx->flags|= lavc_param_bitexact;
 282
 283     avctx->width = sh->disp_w;
 284     avctx->height= sh->disp_h;
 285     avctx->workaround_bugs= lavc_param_workaround_bugs;
 286     avctx->error_recognition= lavc_param_error_resilience;
 287     if(lavc_param_gray) avctx->flags|= CODEC_FLAG_GRAY;
 288 #ifdef CODEC_FLAG2_FAST
 289     avctx->flags2|= lavc_param_fast;
 290 #endif
 291     avctx->codec_tag= sh->format;
 292     avctx->stream_codec_tag= sh->video.fccHandler;
 293     avctx->idct_algo= lavc_param_idct_algo;
 294     avctx->error_concealment= lavc_param_error_concealment;
 295     avctx->debug= lavc_param_debug;
 296     if (lavc_param_debug)
 297         av_log_set_level(AV_LOG_DEBUG);
 298     avctx->debug_mv= lavc_param_vismv;
 299     avctx->skip_top   = lavc_param_skip_top;
 300     avctx->skip_bottom= lavc_param_skip_bottom;
 301     if(lavc_param_lowres_str != NULL)
 302     {
 303         sscanf(lavc_param_lowres_str, "%d,%d", &lavc_param_lowres, &lowres_w);
 304         if(lavc_param_lowres < 1 || lavc_param_lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 305             lavc_param_lowres = 0;
 306         avctx->lowres = lavc_param_lowres;
 307     }
 308     avctx->skip_loop_filter = str2AVDiscard(lavc_param_skip_loop_filter_str);
 309     avctx->skip_idct = str2AVDiscard(lavc_param_skip_idct_str);
 310     avctx->skip_frame = str2AVDiscard(lavc_param_skip_frame_str);
 311
 312     if(lavc_avopt){
 313         if(parse_avopts(avctx, lavc_avopt) < 0){
 314             mp_msg(MSGT_DECVIDEO,MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_avopt);
 315             uninit(sh);
 316             return 0;
 317         }
 318     }
 319
 320     mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"libavcodec.size: %d x %d\n",avctx->width,avctx->height);
 321     switch (sh->format) {
 322     case mmioFOURCC('S','V','Q','3'):
 323     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 324        in the phony AVI header if demux_lavf is used. The first case is
 325        handled here; the second case falls through to the next section. */
 326         if (sh->ImageDesc) {
 327             avctx->extradata_size = (*(int*)sh->ImageDesc) - sizeof(int);
 328             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 329             memcpy(avctx->extradata, ((int*)sh->ImageDesc)+1, avctx->extradata_size);
 330             break;
 331         }
 332         /* fallthrough */
 333
 334     case mmioFOURCC('A','V','R','n'):
 335     case mmioFOURCC('M','J','P','G'):
 336     /* AVRn stores huffman table in AVI header */
 337     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 338        MJPG fourcc :( */
 339         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 340             break;
 341         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 342         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 343         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 344         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 345
 346 #if 0
 347         {
 348             int x;
 349             uint8_t *p = avctx->extradata;
 350
 351             for (x=0; x<avctx->extradata_size; x++)
 352                 mp_msg(MSGT_DECVIDEO, MSGL_INFO,"[%x] ", p[x]);
 353             mp_msg(MSGT_DECVIDEO, MSGL_INFO,"\n");
 354         }
 355 #endif
 356         break;
 357
 358     case mmioFOURCC('R', 'V', '1', '0'):
 359     case mmioFOURCC('R', 'V', '1', '3'):
 360     case mmioFOURCC('R', 'V', '2', '0'):
 361     case mmioFOURCC('R', 'V', '3', '0'):
 362     case mmioFOURCC('R', 'V', '4', '0'):
 363         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 364             /* only 1 packet per frame & sub_id from fourcc */
 365             avctx->extradata_size= 8;
 366             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 367             ((uint32_t*)avctx->extradata)[0] = 0;
 368             ((uint32_t*)avctx->extradata)[1] =
 369                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 370         } else {
 371             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 372             avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 373             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 374             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 375         }
 376         avctx->sub_id= AV_RB32(avctx->extradata+4);
 377
 378 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 379         break;
 380
 381     default:
 382         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 383             break;
 384         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 385         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 386         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 387         break;
 388     }
 389     /* Pass palette to codec */
 390     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 391         avctx->palctrl = calloc(1,sizeof(AVPaletteControl));
 392         avctx->palctrl->palette_changed = 1;
 393         if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
 394             /* Palette size in biSize */
 395             memcpy(avctx->palctrl->palette, sh->bih+1,
 396                    FFMIN(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
 397         else
 398             /* Palette size in biClrUsed */
 399             memcpy(avctx->palctrl->palette, sh->bih+1,
 400                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 401         }
 402
 403     if(sh->bih)
 404         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 405
 406     if(lavc_param_threads > 1)
 407         avcodec_thread_init(avctx, lavc_param_threads);
 408     /* open it */
 409     if (avcodec_open(avctx, lavc_codec) < 0) {
 410         mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantOpenCodec);
 411         uninit(sh);
 412         return 0;
 413     }
 414     mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: libavcodec init OK!\n");
 415     return 1; //mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YV12);
 416 }
 417
 418 // uninit driver
 419 static void uninit(sh_video_t *sh){
 420     vd_ffmpeg_ctx *ctx = sh->context;
 421     AVCodecContext *avctx = ctx->avctx;
 422
 423     if(lavc_param_vstats){
 424         int i;
 425         for(i=1; i<32; i++){
 426             mp_msg(MSGT_DECVIDEO, MSGL_INFO,"QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 427         }
 428         mp_msg(MSGT_DECVIDEO, MSGL_INFO,MSGTR_MPCODECS_ArithmeticMeanOfQP,
 429             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 430             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 431             );
 432     }
 433
 434     if (avctx) {
 435         if (avctx->codec && avcodec_close(avctx) < 0)
 436             mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantCloseCodec);
 437
 438         av_freep(&avctx->extradata);
 439         av_freep(&avctx->palctrl);
 440         av_freep(&avctx->slice_offset);
 441     }
 442
 443     av_freep(&avctx);
 444     av_freep(&ctx->pic);
 445     if (ctx)
 446         free(ctx);
 447 }
 448
 449 static void draw_slice(struct AVCodecContext *s,
 450                         AVFrame *src, int offset[4],
 451                         int y, int type, int height){
 452     sh_video_t * sh = s->opaque;
 453     uint8_t *source[3]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 454 #if 0
 455     int start=0, i;
 456     int width= s->width;
 457     int skip_stride= ((width<<lavc_param_lowres)+15)>>4;
 458     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 459     int threshold= s->coded_frame->age;
 460     if(s->pict_type!=B_TYPE){
 461         for(i=0; i*16<width+16; i++){
 462             if(i*16>=width || skip[i]>=threshold){
 463                 if(start==i) start++;
 464                 else{
 465                     uint8_t *src2[3]= {src[0] + start*16,
 466                                      src[1] + start*8,
 467                                      src[2] + start*8};
 468 //printf("%2d-%2d x %d\n", start, i, y);
 469                     mpcodecs_draw_slice (sh,src2, stride, (i-start)*16, height, start*16, y);
 470                     start= i+1;
 471                 }
 472             }
 473         }
 474     }else
 475 #endif
 476     if (y < sh->disp_h) {
 477         mpcodecs_draw_slice (sh, source, src->linesize, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
 478     }
 479 }
 480
 481
 482 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 483     vd_ffmpeg_ctx *ctx = sh->context;
 484     AVCodecContext *avctx = ctx->avctx;
 485     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 486     int width, height;
 487
 488     width = avctx->width;
 489     height = avctx->height;
 490
 491     // HACK!
 492     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 493     // use dimensions from BIH to avoid black borders at the right and bottom.
 494     if (sh->bih && sh->ImageDesc) {
 495         width = sh->bih->biWidth>>lavc_param_lowres;
 496         height = sh->bih->biHeight>>lavc_param_lowres;
 497     }
 498
 499      // it is possible another vo buffers to be used after vo config()
 500      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 501     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 502         width != sh->disp_w  ||
 503         height != sh->disp_h ||
 504         pix_fmt != ctx->pix_fmt ||
 505         !ctx->vo_initialized)
 506     {
 507         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 508         if (sh->aspect == 0 ||
 509             av_cmp_q(avctx->sample_aspect_ratio,
 510                      ctx->last_sample_aspect_ratio))
 511             sh->aspect = aspect;
 512         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 513         sh->disp_w = width;
 514         sh->disp_h = height;
 515         ctx->pix_fmt = pix_fmt;
 516         switch(pix_fmt){
 517         // YUVJ are YUV formats that use the full Y range and not just
 518         // 16 - 235 (see colorspaces.txt).
 519         // Currently they are all treated the same way.
 520         case PIX_FMT_YUV410P: ctx->best_csp=IMGFMT_YVU9;break; //svq1
 521         case PIX_FMT_YUVJ420P:
 522         case PIX_FMT_YUV420P: ctx->best_csp=IMGFMT_YV12;break; //mpegs
 523         case PIX_FMT_YUVJ422P:
 524         case PIX_FMT_YUV422P: ctx->best_csp=IMGFMT_422P;break; //mjpeg / huffyuv
 525         case PIX_FMT_YUVJ444P:
 526         case PIX_FMT_YUV444P: ctx->best_csp=IMGFMT_444P;break; //photo jpeg
 527         case PIX_FMT_YUV411P: ctx->best_csp=IMGFMT_411P;break; //dv ntsc
 528         case PIX_FMT_YUYV422: ctx->best_csp=IMGFMT_YUY2;break; //huffyuv perhaps in the future
 529         case PIX_FMT_RGB24 :  ctx->best_csp=IMGFMT_RGB24;break; //qtrle
 530         case PIX_FMT_RGB32:   ctx->best_csp=IMGFMT_BGR32;break; //huffyuv / mjpeg
 531         case PIX_FMT_BGR24 :  ctx->best_csp=IMGFMT_BGR24;break; //8bps
 532         case PIX_FMT_RGB555:  ctx->best_csp=IMGFMT_BGR15;break; //rpza,cram
 533         case PIX_FMT_RGB565:  ctx->best_csp=IMGFMT_BGR16;break; //4xm
 534         case PIX_FMT_GRAY8:   ctx->best_csp=IMGFMT_Y800;break; // gray jpeg
 535         case PIX_FMT_PAL8:    ctx->best_csp=IMGFMT_BGR8;break; //8bps,mrle,cram
 536 #if CONFIG_XVMC
 537         case PIX_FMT_XVMC_MPEG2_MC:ctx->best_csp=IMGFMT_XVMC_MOCO_MPEG2;break;
 538         case PIX_FMT_XVMC_MPEG2_IDCT:ctx->best_csp=IMGFMT_XVMC_IDCT_MPEG2;break;
 539 #endif
 540         default:
 541             ctx->best_csp=0;
 542         }
 543         if (!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h, ctx->best_csp))
 544                 return -1;
 545         ctx->vo_initialized = 1;
 546     }
 547     return 0;
 548 }
 549
 550 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 551     sh_video_t * sh = avctx->opaque;
 552     vd_ffmpeg_ctx *ctx = sh->context;
 553     mp_image_t* mpi=NULL;
 554     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 555     int type= MP_IMGTYPE_IPB;
 556     int width= avctx->width;
 557     int height= avctx->height;
 558     int align=15;
 559 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 560     if(avctx->pix_fmt == PIX_FMT_YUV410P)
 561         align=63; //yes seriously, its really needed (16x16 chroma blocks in SVQ1 -> 64x64)
 562
 563   if (pic->buffer_hints) {
 564     mp_msg(MSGT_DECVIDEO,MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 565     type = MP_IMGTYPE_TEMP;
 566     if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 567         flags |= MP_IMGFLAG_READABLE;
 568     if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 569         type = MP_IMGTYPE_STATIC;
 570         flags |= MP_IMGFLAG_PRESERVE;
 571     }
 572     if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 573         type = MP_IMGTYPE_STATIC;
 574         flags |= MP_IMGFLAG_PRESERVE;
 575     }
 576     flags|=(!avctx->hurry_up && ctx->do_slices) ?
 577             MP_IMGFLAG_DRAW_CALLBACK:0;
 578     mp_msg(MSGT_DECVIDEO,MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 579   } else {
 580     if(!pic->reference){
 581         ctx->b_count++;
 582         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 583                 MP_IMGFLAG_DRAW_CALLBACK:0;
 584     }else{
 585         ctx->ip_count++;
 586         flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 587                 | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 588     }
 589   }
 590
 591     if(init_vo(sh,avctx->pix_fmt) < 0){
 592         avctx->release_buffer= avcodec_default_release_buffer;
 593         avctx->get_buffer= avcodec_default_get_buffer;
 594         return avctx->get_buffer(avctx, pic);
 595     }
 596
 597   if (!pic->buffer_hints) {
 598     if(ctx->b_count>1 || ctx->ip_count>2){
 599         mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_DRIFailure);
 600
 601         ctx->do_dr1=0; //FIXME
 602         avctx->get_buffer= avcodec_default_get_buffer;
 603         return avctx->get_buffer(avctx, pic);
 604     }
 605
 606     if(avctx->has_b_frames){
 607         type= MP_IMGTYPE_IPB;
 608     }else{
 609         type= MP_IMGTYPE_IP;
 610     }
 611     mp_msg(MSGT_DECVIDEO,MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 612   }
 613
 614     mpi= mpcodecs_get_image(sh,type, flags,
 615                         (width+align)&(~align), (height+align)&(~align));
 616
 617     // ok, let's see what did we get:
 618     if(  mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 619        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 620         // nice, filter/vo likes draw_callback :)
 621         avctx->draw_horiz_band= draw_slice;
 622     } else
 623         avctx->draw_horiz_band= NULL;
 624
 625         // Palette support: libavcodec copies palette to *data[1]
 626         if (mpi->bpp == 8)
 627                 mpi->planes[1] = av_malloc(AVPALETTE_SIZE);
 628
 629     pic->data[0]= mpi->planes[0];
 630     pic->data[1]= mpi->planes[1];
 631     pic->data[2]= mpi->planes[2];
 632
 633 #if 0
 634     assert(mpi->width >= ((width +align)&(~align)));
 635     assert(mpi->height >= ((height+align)&(~align)));
 636     assert(mpi->stride[0] >= mpi->width);
 637     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 638         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 639         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 640
 641         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 642         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 643         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 644         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 645         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 646         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 647     }
 648 #endif
 649
 650     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 651      * lavc will check that and die with an error message, if its not true
 652      */
 653     pic->linesize[0]= mpi->stride[0];
 654     pic->linesize[1]= mpi->stride[1];
 655     pic->linesize[2]= mpi->stride[2];
 656
 657     pic->opaque = mpi;
 658 //printf("%X\n", (int)mpi->planes[0]);
 659 #if 0
 660 if(mpi->flags&MP_IMGFLAG_DIRECT)
 661     printf("D");
 662 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 663     printf("S");
 664 else
 665     printf(".");
 666 #endif
 667     if(pic->reference){
 668         pic->age= ctx->ip_age[0];
 669
 670         ctx->ip_age[0]= ctx->ip_age[1]+1;
 671         ctx->ip_age[1]= 1;
 672         ctx->b_age++;
 673     }else{
 674         pic->age= ctx->b_age;
 675
 676         ctx->ip_age[0]++;
 677         ctx->ip_age[1]++;
 678         ctx->b_age=1;
 679     }
 680     pic->type= FF_BUFFER_TYPE_USER;
 681     return 0;
 682 }
 683
 684 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 685     mp_image_t* mpi= pic->opaque;
 686     sh_video_t * sh = avctx->opaque;
 687     vd_ffmpeg_ctx *ctx = sh->context;
 688     int i;
 689
 690 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 691
 692   if(ctx->ip_count <= 2 && ctx->b_count<=1){
 693     if(mpi->flags&MP_IMGFLAG_PRESERVE)
 694         ctx->ip_count--;
 695     else
 696         ctx->b_count--;
 697   }
 698
 699         // Palette support: free palette buffer allocated in get_buffer
 700         if ( mpi && (mpi->bpp == 8))
 701                 av_freep(&mpi->planes[1]);
 702
 703     if(pic->type!=FF_BUFFER_TYPE_USER){
 704         avcodec_default_release_buffer(avctx, pic);
 705         return;
 706     }
 707
 708     for(i=0; i<4; i++){
 709         pic->data[i]= NULL;
 710     }
 711 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 712 }
 713
 714 // copypaste from demux_real.c - it should match to get it working!
 715 //FIXME put into some header
 716 typedef struct dp_hdr_s {
 717     uint32_t chunks;    // number of chunks
 718     uint32_t timestamp; // timestamp from packet header
 719     uint32_t len;       // length of actual data
 720     uint32_t chunktab;  // offset to chunk offset array
 721 } dp_hdr_t;
 722
 723 void swap_palette(void *pal) {
 724     int i;
 725     uint32_t *p = pal;
 726     for (i = 0; i < AVPALETTE_COUNT; i++)
 727         p[i] = le2me_32(p[i]);
 728 }
 729
 730 // decode a frame
 731 static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
 732     int got_picture=0;
 733     int ret;
 734     vd_ffmpeg_ctx *ctx = sh->context;
 735     AVFrame *pic= ctx->pic;
 736     AVCodecContext *avctx = ctx->avctx;
 737     mp_image_t* mpi=NULL;
 738     int dr1= ctx->do_dr1;
 739
 740     if(len<=0) return NULL; // skipped frame
 741
 742 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 743     if (!dr1)
 744     avctx->draw_horiz_band=NULL;
 745     avctx->opaque=sh;
 746     if(ctx->vo_initialized && !(flags&3) && !dr1){
 747         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 748             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 749             sh->disp_w, sh->disp_h);
 750         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 751             // vd core likes slices!
 752             avctx->draw_horiz_band=draw_slice;
 753         }
 754     }
 755
 756     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 757
 758     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 759            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 760     ret = avcodec_decode_video(avctx, pic,
 761              &got_picture, data, len);
 762
 763     dr1= ctx->do_dr1;
 764     if(ret<0) mp_msg(MSGT_DECVIDEO,MSGL_WARN, "Error while decoding frame!\n");
 765 //printf("repeat: %d\n", pic->repeat_pict);
 766 //-- vstats generation
 767     while(lavc_param_vstats){ // always one time loop
 768         static FILE *fvstats=NULL;
 769         char filename[20];
 770         static long long int all_len=0;
 771         static int frame_number=0;
 772         static double all_frametime=0.0;
 773         AVFrame *pic= avctx->coded_frame;
 774         double quality=0.0;
 775
 776         if(!fvstats) {
 777             time_t today2;
 778             struct tm *today;
 779             today2 = time(NULL);
 780             today = localtime(&today2);
 781             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 782                 today->tm_min, today->tm_sec);
 783             fvstats = fopen(filename,"w");
 784             if(!fvstats) {
 785                 perror("fopen");
 786                 lavc_param_vstats=0; // disable block
 787                 break;
 788                 /*exit(1);*/
 789             }
 790         }
 791
 792         // average MB quantizer
 793         {
 794             int x, y;
 795             int w = ((avctx->width  << lavc_param_lowres)+15) >> 4;
 796             int h = ((avctx->height << lavc_param_lowres)+15) >> 4;
 797             int8_t *q = pic->qscale_table;
 798             for( y = 0; y < h; y++ ) {
 799                 for( x = 0; x < w; x++ )
 800                     quality += (double)*(q+x);
 801                 q += pic->qstride;
 802             }
 803             quality /= w * h;
 804         }
 805
 806         all_len+=len;
 807         all_frametime+=sh->frametime;
 808         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 809             ++frame_number, quality, len, (double)all_len/1024);
 810         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 811            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 812            (double)(all_len*8)/all_frametime/1000.0);
 813         switch(pic->pict_type){
 814         case FF_I_TYPE:
 815             fprintf(fvstats, "type= I\n");
 816             break;
 817         case FF_P_TYPE:
 818             fprintf(fvstats, "type= P\n");
 819             break;
 820         case FF_S_TYPE:
 821             fprintf(fvstats, "type= S\n");
 822             break;
 823         case FF_B_TYPE:
 824             fprintf(fvstats, "type= B\n");
 825             break;
 826         default:
 827             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 828             break;
 829         }
 830
 831         ctx->qp_stat[(int)(quality+0.5)]++;
 832         ctx->qp_sum += quality;
 833         ctx->inv_qp_sum += 1.0/(double)quality;
 834
 835         break;
 836     }
 837 //--
 838
 839     if(!got_picture) return NULL;       // skipped image
 840
 841     if(init_vo(sh,avctx->pix_fmt) < 0) return NULL;
 842
 843     if(dr1 && pic->opaque){
 844         mpi= (mp_image_t*)pic->opaque;
 845     }
 846
 847     if(!mpi)
 848     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 849         avctx->width, avctx->height);
 850     if(!mpi){   // temporary!
 851         mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_CouldntAllocateImageForCodec);
 852         return NULL;
 853     }
 854
 855     if(!dr1){
 856         mpi->planes[0]=pic->data[0];
 857         mpi->planes[1]=pic->data[1];
 858         mpi->planes[2]=pic->data[2];
 859         mpi->stride[0]=pic->linesize[0];
 860         mpi->stride[1]=pic->linesize[1];
 861         mpi->stride[2]=pic->linesize[2];
 862     }
 863
 864     if (!mpi->planes[0])
 865         return NULL;
 866
 867     if(avctx->pix_fmt==PIX_FMT_YUV422P && mpi->chroma_y_shift==1){
 868         // we have 422p but user wants 420p
 869         mpi->stride[1]*=2;
 870         mpi->stride[2]*=2;
 871     }
 872
 873 #ifdef WORDS_BIGENDIAN
 874     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 875     if (mpi->bpp == 8)
 876         swap_palette(mpi->planes[1]);
 877 #endif
 878 /* to comfirm with newer lavc style */
 879     mpi->qscale =pic->qscale_table;
 880     mpi->qstride=pic->qstride;
 881     mpi->pict_type=pic->pict_type;
 882     mpi->qscale_type= pic->qscale_type;
 883     mpi->fields = MP_IMGFIELD_ORDERED;
 884     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 885     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 886     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 887
 888     return mpi;
 889 }
 890
 891 #if CONFIG_XVMC
 892 static enum PixelFormat get_format(struct AVCodecContext * avctx,
 893                                     const enum PixelFormat * fmt){
 894 sh_video_t * sh = avctx->opaque;
 895 int i;
 896
 897     if(avctx->xvmc_acceleration){
 898         vd_ffmpeg_ctx *ctx = sh->context;
 899         avctx->get_buffer= mc_get_buffer;
 900         avctx->release_buffer= mc_release_buffer;
 901         avctx->draw_horiz_band = mc_render_slice;
 902         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedMPEG2);
 903         assert(ctx->do_dr1);//these are must to!
 904         assert(ctx->do_slices); //it is (vo_)ffmpeg bug if this fails
 905         avctx->flags|= CODEC_FLAG_EMU_EDGE;//do i need that??!!
 906         avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 907     }
 908     for(i=0;fmt[i]!=-1;i++){
 909         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_TryingPixfmt,i);
 910         if( init_vo(sh,fmt[i]) >= 0)
 911             return fmt[i];
 912     }
 913     return fmt[0];
 914 }
 915
 916 static int mc_get_buffer(AVCodecContext *avctx, AVFrame *pic){
 917     sh_video_t * sh = avctx->opaque;
 918     vd_ffmpeg_ctx *ctx = sh->context;
 919     mp_image_t* mpi=NULL;
 920     struct xvmc_render_state * render;
 921     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE|
 922                MP_IMGFLAG_DRAW_CALLBACK;
 923
 924 //  printf("vd_ffmpeg::mc_get_buffer (xvmc) %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 925     if(!avctx->xvmc_acceleration){
 926         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_McGetBufferShouldWorkOnlyWithXVMC);
 927         assert(0);
 928         exit(1);
 929 //        return -1;//!!fixme check error conditions
 930     }
 931     assert(avctx->draw_horiz_band == mc_render_slice);
 932     assert(avctx->release_buffer == mc_release_buffer);
 933     if( mp_msg_test(MSGT_DECVIDEO,MSGL_DBG5) )
 934         mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::mc_get_buffer\n");
 935
 936     if(init_vo(sh,avctx->pix_fmt) < 0){
 937         mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_UnexpectedInitVoError);
 938         exit(1);
 939 //        return -1;//!!fixme check error conditions
 940     }
 941
 942
 943
 944     if(!pic->reference){
 945         ctx->b_count++;
 946     }else{
 947         ctx->ip_count++;
 948         flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE;
 949     }
 950
 951     mpi= mpcodecs_get_image(sh, MP_IMGTYPE_IPB,flags ,
 952                             avctx->width, avctx->height);
 953     if(mpi==NULL){
 954         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MPCODECS_UnrecoverableErrorRenderBuffersNotTaken);
 955         assert(0);
 956         exit(1);
 957 //        return -1;//!!fixme check error conditions in ffmpeg
 958     };
 959
 960     if( (mpi->flags & MP_IMGFLAG_DIRECT) == 0){
 961         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MPCODECS_OnlyBuffersAllocatedByVoXvmcAllowed);
 962         assert(0);
 963         exit(1);
 964 //        return -1;//!!fixme check error conditions in ffmpeg
 965     }
 966
 967     pic->data[0]= mpi->planes[0];
 968     pic->data[1]= mpi->planes[1];
 969     pic->data[2]= mpi->planes[2];
 970
 971
 972     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 973      * lavc will check that and die with an error message, if its not true
 974      */
 975     pic->linesize[0]= mpi->stride[0];
 976     pic->linesize[1]= mpi->stride[1];
 977     pic->linesize[2]= mpi->stride[2];
 978
 979     pic->opaque = mpi;
 980
 981     if(pic->reference){
 982     //I or P frame
 983         pic->age= ctx->ip_age[0];
 984
 985         ctx->ip_age[0]= ctx->ip_age[1]+1;
 986         ctx->ip_age[1]= 1;
 987         ctx->b_age++;
 988     }else{
 989     //B frame
 990         pic->age= ctx->b_age;
 991
 992         ctx->ip_age[0]++;
 993         ctx->ip_age[1]++;
 994         ctx->b_age=1;
 995     }
 996
 997     pic->type= FF_BUFFER_TYPE_USER;
 998
 999     render=(struct xvmc_render_state*)mpi->priv;//same as data[2]
1000     if( mp_msg_test(MSGT_DECVIDEO,MSGL_DBG5) )
1001         mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::mc_get_buffer (render=%p)\n",render);
1002     assert(render != 0);
1003     assert(render->magic == MP_XVMC_RENDER_MAGIC);
1004     render->state |= MP_XVMC_STATE_PREDICTION;
1005     return 0;
1006 }
1007
1008
1009 static void mc_release_buffer(AVCodecContext *avctx, AVFrame *pic){
1010     mp_image_t* mpi= pic->opaque;
1011     sh_video_t * sh = avctx->opaque;
1012     vd_ffmpeg_ctx *ctx = sh->context;
1013     struct xvmc_render_state * render;
1014     int i;
1015
1016
1017     if(ctx->ip_count <= 2 && ctx->b_count<=1){
1018         if(mpi->flags&MP_IMGFLAG_PRESERVE)
1019             ctx->ip_count--;
1020         else
1021             ctx->b_count--;
1022     }
1023
1024 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
1025 //mark the surface as not requared for prediction
1026     render=(struct xvmc_render_state*)pic->data[2];//same as mpi->priv
1027     if( mp_msg_test(MSGT_DECVIDEO,MSGL_DBG5) )
1028         mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::mc_release_buffer (render=%p)\n",render);
1029     assert(render!=NULL);
1030     assert(render->magic==MP_XVMC_RENDER_MAGIC);
1031     render->state&=~MP_XVMC_STATE_PREDICTION;
1032     for(i=0; i<4; i++){
1033         pic->data[i]= NULL;
1034     }
1035 }
1036
1037 static void mc_render_slice(struct AVCodecContext *s,
1038                         AVFrame *src, int offset[4],
1039                         int y, int type, int height){
1040 int width= s->width;
1041 sh_video_t * sh = s->opaque;
1042 uint8_t *source[3]= {src->data[0], src->data[1], src->data[2]};
1043
1044     assert(src->linesize[0]==0 && src->linesize[1]==0 && src->linesize[2]==0);
1045     assert(offset[0]==0 && offset[1]==0 && offset[2]==0);
1046
1047     mpcodecs_draw_slice (sh, source, src->linesize, width, height, 0, y);
1048
1049 }
1050
1051 #endif /* CONFIG_XVMC */