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 #include "fmt-conversion.h"
  15
  16 #include "vd_internal.h"
  17
  18 static vd_info_t info = {
  19     "FFmpeg's libavcodec codec family",
  20     "ffmpeg",
  21     "A'rpi",
  22     "A'rpi, Michael, Alex",
  23     "native codecs"
  24 };
  25
  26 LIBVD_EXTERN(ffmpeg)
  27
  28 #include "libavcodec/avcodec.h"
  29
  30 #if CONFIG_XVMC
  31 #include "libavcodec/xvmc.h"
  32 #endif
  33
  34 int avcodec_initialized=0;
  35
  36 typedef struct {
  37     AVCodecContext *avctx;
  38     AVFrame *pic;
  39     enum PixelFormat pix_fmt;
  40     int do_slices;
  41     int do_dr1;
  42     int vo_initialized;
  43     int best_csp;
  44     int b_age;
  45     int ip_age[2];
  46     int qp_stat[32];
  47     double qp_sum;
  48     double inv_qp_sum;
  49     int ip_count;
  50     int b_count;
  51     AVRational last_sample_aspect_ratio;
  52 } vd_ffmpeg_ctx;
  53
  54 #include "m_option.h"
  55
  56 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  57 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  58 static void draw_slice(struct AVCodecContext *s, AVFrame *src, int offset[4],
  59                        int y, int type, int height);
  60
  61 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  62                                    const enum PixelFormat *pix_fmt);
  63
  64 static int lavc_param_workaround_bugs= FF_BUG_AUTODETECT;
  65 static int lavc_param_error_resilience=2;
  66 static int lavc_param_error_concealment=3;
  67 static int lavc_param_gray=0;
  68 static int lavc_param_vstats=0;
  69 static int lavc_param_idct_algo=0;
  70 static int lavc_param_debug=0;
  71 static int lavc_param_vismv=0;
  72 static int lavc_param_skip_top=0;
  73 static int lavc_param_skip_bottom=0;
  74 static int lavc_param_fast=0;
  75 static int lavc_param_lowres=0;
  76 static char *lavc_param_lowres_str=NULL;
  77 static char *lavc_param_skip_loop_filter_str = NULL;
  78 static char *lavc_param_skip_idct_str = NULL;
  79 static char *lavc_param_skip_frame_str = NULL;
  80 static int lavc_param_threads=1;
  81 static int lavc_param_bitexact=0;
  82 static char *lavc_avopt = NULL;
  83
  84 const m_option_t lavc_decode_opts_conf[]={
  85     {"bug", &lavc_param_workaround_bugs, CONF_TYPE_INT, CONF_RANGE, -1, 999999, NULL},
  86     {"er", &lavc_param_error_resilience, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  87     {"gray", &lavc_param_gray, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_PART, NULL},
  88     {"idct", &lavc_param_idct_algo, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  89     {"ec", &lavc_param_error_concealment, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  90     {"vstats", &lavc_param_vstats, CONF_TYPE_FLAG, 0, 0, 1, NULL},
  91     {"debug", &lavc_param_debug, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
  92     {"vismv", &lavc_param_vismv, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
  93     {"st", &lavc_param_skip_top, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
  94     {"sb", &lavc_param_skip_bottom, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
  95     {"fast", &lavc_param_fast, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG2_FAST, NULL},
  96     {"lowres", &lavc_param_lowres_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
  97     {"skiploopfilter", &lavc_param_skip_loop_filter_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
  98     {"skipidct", &lavc_param_skip_idct_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
  99     {"skipframe", &lavc_param_skip_frame_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 100     {"threads", &lavc_param_threads, CONF_TYPE_INT, CONF_RANGE, 1, 8, NULL},
 101     {"bitexact", &lavc_param_bitexact, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_BITEXACT, NULL},
 102     {"o", &lavc_avopt, CONF_TYPE_STRING, 0, 0, 0, NULL},
 103     {NULL, NULL, 0, 0, 0, 0, NULL}
 104 };
 105
 106 static enum AVDiscard str2AVDiscard(char *str) {
 107     if (!str)                               return AVDISCARD_DEFAULT;
 108     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
 109     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
 110     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
 111     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 112     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 113     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 114     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 115     return AVDISCARD_DEFAULT;
 116 }
 117
 118 // to set/get/query special features/parameters
 119 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 120     vd_ffmpeg_ctx *ctx = sh->context;
 121     AVCodecContext *avctx = ctx->avctx;
 122     switch(cmd){
 123     case VDCTRL_QUERY_FORMAT:
 124     {
 125         int format =(*((int *)arg));
 126         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 127         // possible conversions:
 128         switch(format){
 129         case IMGFMT_YV12:
 130         case IMGFMT_IYUV:
 131         case IMGFMT_I420:
 132             // "converted" using pointer/stride modification
 133             if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
 134             if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 135             break;
 136 #if CONFIG_XVMC
 137         case IMGFMT_XVMC_IDCT_MPEG2:
 138         case IMGFMT_XVMC_MOCO_MPEG2:
 139             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 140 #endif
 141         }
 142         return CONTROL_FALSE;
 143     }
 144     case VDCTRL_RESYNC_STREAM:
 145         avcodec_flush_buffers(avctx);
 146         return CONTROL_TRUE;
 147     case VDCTRL_QUERY_UNSEEN_FRAMES:
 148         return avctx->has_b_frames + 10;
 149     }
 150     return CONTROL_UNKNOWN;
 151 }
 152
 153 void mp_msp_av_log_callback(void *ptr, int level, const char *fmt, va_list vl)
 154 {
 155     static int print_prefix=1;
 156     AVClass *avc= ptr ? *(AVClass **)ptr : NULL;
 157     int type= MSGT_FIXME;
 158     int mp_level;
 159     char buf[256];
 160
 161     switch(level){
 162     case AV_LOG_DEBUG:  mp_level= MSGL_V   ; break;
 163     case AV_LOG_INFO :  mp_level= MSGL_INFO; break;
 164     case AV_LOG_ERROR:  mp_level= MSGL_ERR ; break;
 165     default          :  mp_level= MSGL_ERR ; break;
 166     }
 167
 168     if (!mp_msg_test(type, mp_level)) return;
 169
 170     if(ptr){
 171         if(!strcmp(avc->class_name, "AVCodecContext")){
 172             AVCodecContext *s= ptr;
 173             if(s->codec){
 174                 if(s->codec->type == CODEC_TYPE_AUDIO){
 175                     if(s->codec->decode)
 176                         type= MSGT_DECAUDIO;
 177                 }else if(s->codec->type == CODEC_TYPE_VIDEO){
 178                     if(s->codec->decode)
 179                         type= MSGT_DECVIDEO;
 180                 }
 181                 //FIXME subtitles, encoders (what msgt for them? there is no appropriate ...)
 182             }
 183         }else if(!strcmp(avc->class_name, "AVFormatContext")){
 184 #if 0 //needs libavformat include FIXME iam too lazy to do this cleanly, probably the whole should be moved out of this file ...
 185             AVFormatContext *s= ptr;
 186             if(s->iformat)
 187                 type= MSGT_DEMUXER;
 188             else if(s->oformat)
 189                 type= MSGT_MUXER;
 190 #endif
 191         }
 192     }
 193
 194     if(print_prefix && avc) {
 195         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 196     }
 197
 198     print_prefix= strchr(fmt, '\n') != NULL;
 199     vsnprintf(buf, sizeof(buf), fmt, vl);
 200     mp_msg(type, mp_level, buf);
 201 }
 202
 203 // init driver
 204 static int init(sh_video_t *sh){
 205     AVCodecContext *avctx;
 206     vd_ffmpeg_ctx *ctx;
 207     AVCodec *lavc_codec;
 208     int lowres_w=0;
 209     int do_vis_debug= lavc_param_vismv || (lavc_param_debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 210
 211     if(!avcodec_initialized){
 212         avcodec_init();
 213         avcodec_register_all();
 214         avcodec_initialized=1;
 215         av_log_set_callback(mp_msp_av_log_callback);
 216     }
 217
 218     ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
 219     if (!ctx)
 220         return 0;
 221     memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
 222
 223     lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
 224     if(!lavc_codec){
 225         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MissingLAVCcodec, sh->codec->dll);
 226         uninit(sh);
 227         return 0;
 228     }
 229
 230     if(vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 231         ctx->do_slices=1;
 232
 233     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)
 234         ctx->do_dr1=1;
 235     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 236     ctx->ip_count= ctx->b_count= 0;
 237
 238     ctx->pic = avcodec_alloc_frame();
 239     ctx->avctx = avcodec_alloc_context();
 240     avctx = ctx->avctx;
 241
 242 #if CONFIG_XVMC
 243
 244     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL){
 245         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedCodec);
 246         assert(ctx->do_dr1);//these are must to!
 247         assert(ctx->do_slices); //it is (vo_)ffmpeg bug if this fails
 248         avctx->get_format= get_format;//for now only this decoder will use it
 249         avctx->draw_horiz_band = draw_slice;
 250         avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 251     }
 252 #endif /* CONFIG_XVMC */
 253     if(ctx->do_dr1){
 254         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 255         avctx->get_buffer= get_buffer;
 256         avctx->release_buffer= release_buffer;
 257         avctx->reget_buffer= get_buffer;
 258     }
 259
 260     avctx->flags|= lavc_param_bitexact;
 261
 262     avctx->width = sh->disp_w;
 263     avctx->height= sh->disp_h;
 264     avctx->workaround_bugs= lavc_param_workaround_bugs;
 265     avctx->error_recognition= lavc_param_error_resilience;
 266     if(lavc_param_gray) avctx->flags|= CODEC_FLAG_GRAY;
 267     avctx->flags2|= lavc_param_fast;
 268     avctx->codec_tag= sh->format;
 269     avctx->stream_codec_tag= sh->video.fccHandler;
 270     avctx->idct_algo= lavc_param_idct_algo;
 271     avctx->error_concealment= lavc_param_error_concealment;
 272     avctx->debug= lavc_param_debug;
 273     if (lavc_param_debug)
 274         av_log_set_level(AV_LOG_DEBUG);
 275     avctx->debug_mv= lavc_param_vismv;
 276     avctx->skip_top   = lavc_param_skip_top;
 277     avctx->skip_bottom= lavc_param_skip_bottom;
 278     if(lavc_param_lowres_str != NULL)
 279     {
 280         sscanf(lavc_param_lowres_str, "%d,%d", &lavc_param_lowres, &lowres_w);
 281         if(lavc_param_lowres < 1 || lavc_param_lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 282             lavc_param_lowres = 0;
 283         avctx->lowres = lavc_param_lowres;
 284     }
 285     avctx->skip_loop_filter = str2AVDiscard(lavc_param_skip_loop_filter_str);
 286     avctx->skip_idct = str2AVDiscard(lavc_param_skip_idct_str);
 287     avctx->skip_frame = str2AVDiscard(lavc_param_skip_frame_str);
 288
 289     if(lavc_avopt){
 290         if(parse_avopts(avctx, lavc_avopt) < 0){
 291             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_avopt);
 292             uninit(sh);
 293             return 0;
 294         }
 295     }
 296
 297     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 298     switch (sh->format) {
 299     case mmioFOURCC('S','V','Q','3'):
 300     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 301        in the phony AVI header if demux_lavf is used. The first case is
 302        handled here; the second case falls through to the next section. */
 303         if (sh->ImageDesc) {
 304             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 305             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 306             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 307             break;
 308         }
 309         /* fallthrough */
 310
 311     case mmioFOURCC('A','V','R','n'):
 312     case mmioFOURCC('M','J','P','G'):
 313     /* AVRn stores huffman table in AVI header */
 314     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 315        MJPG fourcc :( */
 316         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 317             break;
 318         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 319         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 320         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 321         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 322
 323 #if 0
 324         {
 325             int x;
 326             uint8_t *p = avctx->extradata;
 327
 328             for (x=0; x<avctx->extradata_size; x++)
 329                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 330             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 331         }
 332 #endif
 333         break;
 334
 335     case mmioFOURCC('R', 'V', '1', '0'):
 336     case mmioFOURCC('R', 'V', '1', '3'):
 337     case mmioFOURCC('R', 'V', '2', '0'):
 338     case mmioFOURCC('R', 'V', '3', '0'):
 339     case mmioFOURCC('R', 'V', '4', '0'):
 340         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 341             /* only 1 packet per frame & sub_id from fourcc */
 342             avctx->extradata_size= 8;
 343             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 344             ((uint32_t *)avctx->extradata)[0] = 0;
 345             ((uint32_t *)avctx->extradata)[1] =
 346                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 347         } else {
 348             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 349             avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 350             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 351             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 352         }
 353         avctx->sub_id= AV_RB32(avctx->extradata+4);
 354
 355 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 356         break;
 357
 358     default:
 359         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 360             break;
 361         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 362         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 363         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 364         break;
 365     }
 366     /* Pass palette to codec */
 367     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 368         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 369         avctx->palctrl->palette_changed = 1;
 370         if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
 371             /* Palette size in biSize */
 372             memcpy(avctx->palctrl->palette, sh->bih+1,
 373                    FFMIN(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
 374         else
 375             /* Palette size in biClrUsed */
 376             memcpy(avctx->palctrl->palette, sh->bih+1,
 377                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 378         }
 379
 380     if(sh->bih)
 381         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 382
 383     if(lavc_param_threads > 1)
 384         avcodec_thread_init(avctx, lavc_param_threads);
 385     /* open it */
 386     if (avcodec_open(avctx, lavc_codec) < 0) {
 387         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantOpenCodec);
 388         uninit(sh);
 389         return 0;
 390     }
 391     mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
 392     return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
 393 }
 394
 395 // uninit driver
 396 static void uninit(sh_video_t *sh){
 397     vd_ffmpeg_ctx *ctx = sh->context;
 398     AVCodecContext *avctx = ctx->avctx;
 399
 400     if(lavc_param_vstats){
 401         int i;
 402         for(i=1; i<32; i++){
 403             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 404         }
 405         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_ArithmeticMeanOfQP,
 406             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 407             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 408             );
 409     }
 410
 411     if (avctx) {
 412         if (avctx->codec && avcodec_close(avctx) < 0)
 413             mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantCloseCodec);
 414
 415         av_freep(&avctx->extradata);
 416         av_freep(&avctx->palctrl);
 417         av_freep(&avctx->slice_offset);
 418     }
 419
 420     av_freep(&avctx);
 421     av_freep(&ctx->pic);
 422     if (ctx)
 423         free(ctx);
 424 }
 425
 426 static void draw_slice(struct AVCodecContext *s,
 427                         AVFrame *src, int offset[4],
 428                         int y, int type, int height){
 429     sh_video_t *sh = s->opaque;
 430     uint8_t *source[3]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 431 #if 0
 432     int start=0, i;
 433     int width= s->width;
 434     int skip_stride= ((width<<lavc_param_lowres)+15)>>4;
 435     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 436     int threshold= s->coded_frame->age;
 437     if(s->pict_type!=B_TYPE){
 438         for(i=0; i*16<width+16; i++){
 439             if(i*16>=width || skip[i]>=threshold){
 440                 if(start==i) start++;
 441                 else{
 442                     uint8_t *src2[3]= {src[0] + start*16,
 443                                      src[1] + start*8,
 444                                      src[2] + start*8};
 445 //printf("%2d-%2d x %d\n", start, i, y);
 446                     mpcodecs_draw_slice (sh, src2, stride, (i-start)*16, height, start*16, y);
 447                     start= i+1;
 448                 }
 449             }
 450         }
 451     }else
 452 #endif
 453     if (y < sh->disp_h) {
 454         mpcodecs_draw_slice (sh, source, src->linesize, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
 455     }
 456 }
 457
 458
 459 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 460     vd_ffmpeg_ctx *ctx = sh->context;
 461     AVCodecContext *avctx = ctx->avctx;
 462     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 463     int width, height;
 464
 465     width = avctx->width;
 466     height = avctx->height;
 467
 468     // HACK!
 469     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 470     // use dimensions from BIH to avoid black borders at the right and bottom.
 471     if (sh->bih && sh->ImageDesc) {
 472         width = sh->bih->biWidth>>lavc_param_lowres;
 473         height = sh->bih->biHeight>>lavc_param_lowres;
 474     }
 475
 476      // it is possible another vo buffers to be used after vo config()
 477      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 478     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 479         width != sh->disp_w  ||
 480         height != sh->disp_h ||
 481         pix_fmt != ctx->pix_fmt ||
 482         !ctx->vo_initialized)
 483     {
 484         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 485         if (sh->aspect == 0 ||
 486             av_cmp_q(avctx->sample_aspect_ratio,
 487                      ctx->last_sample_aspect_ratio))
 488             sh->aspect = aspect;
 489         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 490         sh->disp_w = width;
 491         sh->disp_h = height;
 492         ctx->pix_fmt = pix_fmt;
 493         ctx->best_csp = pixfmt2imgfmt(pix_fmt);
 494         if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, ctx->best_csp))
 495             return -1;
 496         ctx->vo_initialized = 1;
 497     }
 498     return 0;
 499 }
 500
 501 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 502     sh_video_t *sh = avctx->opaque;
 503     vd_ffmpeg_ctx *ctx = sh->context;
 504     mp_image_t *mpi=NULL;
 505     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 506     int type= MP_IMGTYPE_IPB;
 507     int width= avctx->width;
 508     int height= avctx->height;
 509     int align=15;
 510 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 511     if(avctx->pix_fmt == PIX_FMT_YUV410P)
 512         align=63; //yes seriously, its really needed (16x16 chroma blocks in SVQ1 -> 64x64)
 513
 514     if (pic->buffer_hints) {
 515         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 516         type = MP_IMGTYPE_TEMP;
 517         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 518             flags |= MP_IMGFLAG_READABLE;
 519         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 520             type = MP_IMGTYPE_STATIC;
 521             flags |= MP_IMGFLAG_PRESERVE;
 522         }
 523         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 524             type = MP_IMGTYPE_STATIC;
 525             flags |= MP_IMGFLAG_PRESERVE;
 526         }
 527         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 528                  MP_IMGFLAG_DRAW_CALLBACK:0;
 529         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 530     } else {
 531         if(!pic->reference){
 532             ctx->b_count++;
 533             flags|=(!avctx->hurry_up && ctx->do_slices) ?
 534                      MP_IMGFLAG_DRAW_CALLBACK:0;
 535         }else{
 536             ctx->ip_count++;
 537             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 538                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 539         }
 540     }
 541
 542     if(init_vo(sh, avctx->pix_fmt) < 0){
 543         avctx->release_buffer= avcodec_default_release_buffer;
 544         avctx->get_buffer= avcodec_default_get_buffer;
 545         return avctx->get_buffer(avctx, pic);
 546     }
 547
 548     if (IMGFMT_IS_XVMC(ctx->best_csp)) {
 549         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 550     } else
 551     if (!pic->buffer_hints) {
 552         if(ctx->b_count>1 || ctx->ip_count>2){
 553             mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_DRIFailure);
 554
 555             ctx->do_dr1=0; //FIXME
 556             avctx->get_buffer= avcodec_default_get_buffer;
 557             return avctx->get_buffer(avctx, pic);
 558         }
 559
 560         if(avctx->has_b_frames){
 561             type= MP_IMGTYPE_IPB;
 562         }else{
 563             type= MP_IMGTYPE_IP;
 564         }
 565         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 566     }
 567
 568     mpi= mpcodecs_get_image(sh, type, flags,
 569                         (width+align)&(~align), (height+align)&(~align));
 570
 571     // ok, let's see what did we get:
 572     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 573        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 574         // nice, filter/vo likes draw_callback :)
 575         avctx->draw_horiz_band= draw_slice;
 576     } else
 577         avctx->draw_horiz_band= NULL;
 578 #if CONFIG_XVMC
 579     if(IMGFMT_IS_XVMC(mpi->imgfmt)) {
 580         struct xvmc_pixfmt_render *render = mpi->priv;//same as data[2]
 581         avctx->draw_horiz_band= draw_slice;
 582         if(!avctx->xvmc_acceleration) {
 583             mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_McGetBufferShouldWorkOnlyWithXVMC);
 584             assert(0);
 585             exit(1);
 586 //            return -1;//!!fixme check error conditions in ffmpeg
 587         }
 588         if(!(mpi->flags & MP_IMGFLAG_DIRECT)) {
 589             mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MPCODECS_OnlyBuffersAllocatedByVoXvmcAllowed);
 590             assert(0);
 591             exit(1);
 592 //            return -1;//!!fixme check error conditions in ffmpeg
 593         }
 594         if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 595             mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::get_buffer (xvmc render=%p)\n", render);
 596         assert(render != 0);
 597         assert(render->magic_id == AV_XVMC_RENDER_MAGIC);
 598         render->state |= AV_XVMC_STATE_PREDICTION;
 599     }
 600 #endif
 601
 602     // Palette support: libavcodec copies palette to *data[1]
 603     if (mpi->bpp == 8)
 604         mpi->planes[1] = av_malloc(AVPALETTE_SIZE);
 605
 606     pic->data[0]= mpi->planes[0];
 607     pic->data[1]= mpi->planes[1];
 608     pic->data[2]= mpi->planes[2];
 609
 610 #if 0
 611     assert(mpi->width >= ((width +align)&(~align)));
 612     assert(mpi->height >= ((height+align)&(~align)));
 613     assert(mpi->stride[0] >= mpi->width);
 614     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 615         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 616         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 617
 618         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 619         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 620         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 621         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 622         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 623         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 624     }
 625 #endif
 626
 627     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 628      * lavc will check that and die with an error message, if its not true
 629      */
 630     pic->linesize[0]= mpi->stride[0];
 631     pic->linesize[1]= mpi->stride[1];
 632     pic->linesize[2]= mpi->stride[2];
 633
 634     pic->opaque = mpi;
 635 //printf("%X\n", (int)mpi->planes[0]);
 636 #if 0
 637 if(mpi->flags&MP_IMGFLAG_DIRECT)
 638     printf("D");
 639 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 640     printf("S");
 641 else
 642     printf(".");
 643 #endif
 644     if(pic->reference){
 645         pic->age= ctx->ip_age[0];
 646
 647         ctx->ip_age[0]= ctx->ip_age[1]+1;
 648         ctx->ip_age[1]= 1;
 649         ctx->b_age++;
 650     }else{
 651         pic->age= ctx->b_age;
 652
 653         ctx->ip_age[0]++;
 654         ctx->ip_age[1]++;
 655         ctx->b_age=1;
 656     }
 657     pic->type= FF_BUFFER_TYPE_USER;
 658     return 0;
 659 }
 660
 661 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 662     mp_image_t *mpi= pic->opaque;
 663     sh_video_t *sh = avctx->opaque;
 664     vd_ffmpeg_ctx *ctx = sh->context;
 665     int i;
 666
 667 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 668
 669     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 670         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 671             ctx->ip_count--;
 672         else
 673             ctx->b_count--;
 674     }
 675
 676     if (mpi) {
 677         // Palette support: free palette buffer allocated in get_buffer
 678         if (mpi->bpp == 8)
 679             av_freep(&mpi->planes[1]);
 680 #if CONFIG_XVMC
 681         if (IMGFMT_IS_XVMC(mpi->imgfmt)) {
 682             struct xvmc_pixfmt_render *render = (struct xvmc_pixfmt_render *)pic->data[2];//same as mpi->priv
 683             if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 684                 mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::release_buffer (xvmc render=%p)\n", render);
 685             assert(render!=NULL);
 686             assert(render->magic_id==AV_XVMC_RENDER_MAGIC);
 687             render->state&=~AV_XVMC_STATE_PREDICTION;
 688         }
 689 #endif
 690         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 691         mpi->flags &= ~MP_IMGFLAG_IN_USE;
 692     }
 693
 694     if(pic->type!=FF_BUFFER_TYPE_USER){
 695         avcodec_default_release_buffer(avctx, pic);
 696         return;
 697     }
 698
 699     for(i=0; i<4; i++){
 700         pic->data[i]= NULL;
 701     }
 702 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 703 }
 704
 705 // copypaste from demux_real.c - it should match to get it working!
 706 //FIXME put into some header
 707 typedef struct dp_hdr_s {
 708     uint32_t chunks;        // number of chunks
 709     uint32_t timestamp; // timestamp from packet header
 710     uint32_t len;        // length of actual data
 711     uint32_t chunktab;        // offset to chunk offset array
 712 } dp_hdr_t;
 713
 714 void swap_palette(void *pal) {
 715     int i;
 716     uint32_t *p = pal;
 717     for (i = 0; i < AVPALETTE_COUNT; i++)
 718         p[i] = le2me_32(p[i]);
 719 }
 720
 721 // decode a frame
 722 static mp_image_t *decode(sh_video_t *sh, void *data, int len, int flags){
 723     int got_picture=0;
 724     int ret;
 725     vd_ffmpeg_ctx *ctx = sh->context;
 726     AVFrame *pic= ctx->pic;
 727     AVCodecContext *avctx = ctx->avctx;
 728     mp_image_t *mpi=NULL;
 729     int dr1= ctx->do_dr1;
 730
 731     if(len<=0) return NULL; // skipped frame
 732
 733 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 734     if (!dr1)
 735     avctx->draw_horiz_band=NULL;
 736     avctx->opaque=sh;
 737     if(ctx->vo_initialized && !(flags&3) && !dr1){
 738         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 739             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 740             sh->disp_w, sh->disp_h);
 741         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 742             // vd core likes slices!
 743             avctx->draw_horiz_band=draw_slice;
 744         }
 745     }
 746
 747     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 748
 749     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 750            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 751     ret = avcodec_decode_video(avctx, pic,
 752              &got_picture, data, len);
 753
 754     dr1= ctx->do_dr1;
 755     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 756 //printf("repeat: %d\n", pic->repeat_pict);
 757 //-- vstats generation
 758     while(lavc_param_vstats){ // always one time loop
 759         static FILE *fvstats=NULL;
 760         char filename[20];
 761         static long long int all_len=0;
 762         static int frame_number=0;
 763         static double all_frametime=0.0;
 764         AVFrame *pic= avctx->coded_frame;
 765         double quality=0.0;
 766
 767         if(!fvstats) {
 768             time_t today2;
 769             struct tm *today;
 770             today2 = time(NULL);
 771             today = localtime(&today2);
 772             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 773                 today->tm_min, today->tm_sec);
 774             fvstats = fopen(filename, "w");
 775             if(!fvstats) {
 776                 perror("fopen");
 777                 lavc_param_vstats=0; // disable block
 778                 break;
 779                 /*exit(1);*/
 780             }
 781         }
 782
 783         // average MB quantizer
 784         {
 785             int x, y;
 786             int w = ((avctx->width  << lavc_param_lowres)+15) >> 4;
 787             int h = ((avctx->height << lavc_param_lowres)+15) >> 4;
 788             int8_t *q = pic->qscale_table;
 789             for(y = 0; y < h; y++) {
 790                 for(x = 0; x < w; x++)
 791                     quality += (double)*(q+x);
 792                 q += pic->qstride;
 793             }
 794             quality /= w * h;
 795         }
 796
 797         all_len+=len;
 798         all_frametime+=sh->frametime;
 799         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 800             ++frame_number, quality, len, (double)all_len/1024);
 801         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 802            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 803            (double)(all_len*8)/all_frametime/1000.0);
 804         switch(pic->pict_type){
 805         case FF_I_TYPE:
 806             fprintf(fvstats, "type= I\n");
 807             break;
 808         case FF_P_TYPE:
 809             fprintf(fvstats, "type= P\n");
 810             break;
 811         case FF_S_TYPE:
 812             fprintf(fvstats, "type= S\n");
 813             break;
 814         case FF_B_TYPE:
 815             fprintf(fvstats, "type= B\n");
 816             break;
 817         default:
 818             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 819             break;
 820         }
 821
 822         ctx->qp_stat[(int)(quality+0.5)]++;
 823         ctx->qp_sum += quality;
 824         ctx->inv_qp_sum += 1.0/(double)quality;
 825
 826         break;
 827     }
 828 //--
 829
 830     if(!got_picture) return NULL;        // skipped image
 831
 832     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 833
 834     if(dr1 && pic->opaque){
 835         mpi= (mp_image_t *)pic->opaque;
 836     }
 837
 838     if(!mpi)
 839     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 840         avctx->width, avctx->height);
 841     if(!mpi){        // temporary!
 842         mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_CouldntAllocateImageForCodec);
 843         return NULL;
 844     }
 845
 846     if(!dr1){
 847         mpi->planes[0]=pic->data[0];
 848         mpi->planes[1]=pic->data[1];
 849         mpi->planes[2]=pic->data[2];
 850         mpi->stride[0]=pic->linesize[0];
 851         mpi->stride[1]=pic->linesize[1];
 852         mpi->stride[2]=pic->linesize[2];
 853     }
 854
 855     if (!mpi->planes[0])
 856         return NULL;
 857
 858     if(avctx->pix_fmt==PIX_FMT_YUV422P && mpi->chroma_y_shift==1){
 859         // we have 422p but user wants 420p
 860         mpi->stride[1]*=2;
 861         mpi->stride[2]*=2;
 862     }
 863
 864 #ifdef WORDS_BIGENDIAN
 865     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 866     if (mpi->bpp == 8)
 867         swap_palette(mpi->planes[1]);
 868 #endif
 869 /* to comfirm with newer lavc style */
 870     mpi->qscale =pic->qscale_table;
 871     mpi->qstride=pic->qstride;
 872     mpi->pict_type=pic->pict_type;
 873     mpi->qscale_type= pic->qscale_type;
 874     mpi->fields = MP_IMGFIELD_ORDERED;
 875     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 876     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 877     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 878
 879     return mpi;
 880 }
 881
 882 #if CONFIG_XVMC
 883 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 884                                     const enum PixelFormat *fmt){
 885     enum PixelFormat selected_format = fmt[0];
 886     int imgfmt;
 887     sh_video_t *sh = avctx->opaque;
 888     int i;
 889
 890     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 891         imgfmt = pixfmt2imgfmt(fmt[i]);
 892         if(!IMGFMT_IS_XVMC(imgfmt)) continue;
 893         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_TryingPixfmt, i);
 894         if(init_vo(sh, fmt[i]) >= 0) {
 895             selected_format = fmt[i];
 896             break;
 897         }
 898     }
 899     imgfmt = pixfmt2imgfmt(selected_format);
 900     if(IMGFMT_IS_XVMC(imgfmt)) {
 901         vd_ffmpeg_ctx *ctx = sh->context;
 902         avctx->get_buffer= get_buffer;
 903         avctx->release_buffer= release_buffer;
 904         avctx->draw_horiz_band = draw_slice;
 905         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedMPEG2);
 906         assert(ctx->do_dr1);//these are must to!
 907         assert(ctx->do_slices); //it is (vo_)ffmpeg bug if this fails
 908         avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 909     }
 910     return selected_format;
 911 }
 912
 913 #endif /* CONFIG_XVMC */