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 "options.h"
  10 #include "av_opts.h"
  11
  12 #include "libavutil/common.h"
  13 #include "ffmpeg_files/intreadwrite.h"
  14 #include "mpbswap.h"
  15 #include "fmt-conversion.h"
  16
  17 #include "vd.h"
  18 #include "img_format.h"
  19 #include "libmpdemux/stheader.h"
  20 #include "codec-cfg.h"
  21
  22 static const vd_info_t info = {
  23     "FFmpeg's libavcodec codec family",
  24     "ffmpeg",
  25     "A'rpi",
  26     "A'rpi, Michael, Alex",
  27     "native codecs"
  28 };
  29
  30 #include "libavcodec/avcodec.h"
  31
  32 #if AVPALETTE_SIZE > 1024
  33 #error palette too large, adapt libmpcodecs/vf.c:vf_get_image
  34 #endif
  35
  36 #if CONFIG_XVMC
  37 #include "libavcodec/xvmc.h"
  38 #endif
  39
  40 int avcodec_initialized=0;
  41
  42 typedef struct {
  43     AVCodecContext *avctx;
  44     AVFrame *pic;
  45     enum PixelFormat pix_fmt;
  46     int do_slices;
  47     int do_dr1;
  48     int vo_initialized;
  49     int best_csp;
  50     int b_age;
  51     int ip_age[2];
  52     int qp_stat[32];
  53     double qp_sum;
  54     double inv_qp_sum;
  55     int ip_count;
  56     int b_count;
  57     AVRational last_sample_aspect_ratio;
  58     int lowres;
  59 } vd_ffmpeg_ctx;
  60
  61 #include "m_option.h"
  62
  63 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  64 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  65 static void draw_slice(struct AVCodecContext *s, const AVFrame *src,
  66                        int offset[4], int y, int type, int height);
  67
  68 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  69                                    const enum PixelFormat *pix_fmt);
  70 static void uninit(struct sh_video *sh);
  71
  72 const m_option_t lavc_decode_opts_conf[]={
  73     OPT_INTRANGE("bug", lavc_param.workaround_bugs, 0, -1, 999999),
  74     OPT_INTRANGE("er", lavc_param.error_resilience, 0, 0, 99),
  75     OPT_FLAG_ON("gray", lavc_param.gray, 0),
  76     OPT_INTRANGE("idct", lavc_param.idct_algo, 0, 0, 99),
  77     OPT_INTRANGE("ec", lavc_param.error_concealment, 0, 0, 99),
  78     OPT_FLAG_ON("vstats", lavc_param.vstats, 0),
  79     OPT_INTRANGE("debug", lavc_param.debug, 0, 0, 9999999),
  80     OPT_INTRANGE("vismv", lavc_param.vismv, 0, 0, 9999999),
  81     OPT_INTRANGE("st", lavc_param.skip_top, 0, 0, 999),
  82     OPT_INTRANGE("sb", lavc_param.skip_bottom, 0, 0, 999),
  83     OPT_FLAG_CONSTANTS("fast", lavc_param.fast, 0, 0, CODEC_FLAG2_FAST),
  84     OPT_STRING("lowres", lavc_param.lowres_str, 0),
  85     OPT_STRING("skiploopfilter", lavc_param.skip_loop_filter_str, 0),
  86     OPT_STRING("skipidct", lavc_param.skip_idct_str, 0),
  87     OPT_STRING("skipframe", lavc_param.skip_frame_str, 0),
  88     OPT_INTRANGE("threads", lavc_param.threads, 0, 1, 8),
  89     OPT_FLAG_CONSTANTS("bitexact", lavc_param.bitexact, 0, 0, CODEC_FLAG_BITEXACT),
  90     OPT_STRING("o", lavc_param.avopt, 0),
  91     {NULL, NULL, 0, 0, 0, 0, NULL}
  92 };
  93
  94 static enum AVDiscard str2AVDiscard(char *str) {
  95     if (!str)                               return AVDISCARD_DEFAULT;
  96     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
  97     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
  98     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
  99     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 100     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 101     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 102     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 103     return AVDISCARD_DEFAULT;
 104 }
 105
 106 // to set/get/query special features/parameters
 107 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 108     vd_ffmpeg_ctx *ctx = sh->context;
 109     AVCodecContext *avctx = ctx->avctx;
 110     switch(cmd){
 111     case VDCTRL_QUERY_FORMAT:
 112     {
 113         int format =(*((int *)arg));
 114         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 115         // possible conversions:
 116         switch(format){
 117         case IMGFMT_YV12:
 118         case IMGFMT_IYUV:
 119         case IMGFMT_I420:
 120             // "converted" using pointer/stride modification
 121             if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
 122             if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 123             break;
 124 #if CONFIG_XVMC
 125         case IMGFMT_XVMC_IDCT_MPEG2:
 126         case IMGFMT_XVMC_MOCO_MPEG2:
 127             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 128 #endif
 129         }
 130         return CONTROL_FALSE;
 131     }
 132     case VDCTRL_RESYNC_STREAM:
 133         avcodec_flush_buffers(avctx);
 134         return CONTROL_TRUE;
 135     case VDCTRL_QUERY_UNSEEN_FRAMES:;
 136         int delay = avctx->has_b_frames;
 137 #ifdef FF_THREAD_FRAME
 138         // FFmpeg-mt has extra delay when using frame threading
 139         if (avctx->thread_type & FF_THREAD_FRAME)
 140             delay += avctx->thread_count - 1;
 141 #endif
 142         return delay + 10;
 143     }
 144     return CONTROL_UNKNOWN;
 145 }
 146
 147 static void set_format_params(struct AVCodecContext *avctx, enum PixelFormat fmt){
 148     int imgfmt;
 149     imgfmt = pixfmt2imgfmt(fmt);
 150     if (IMGFMT_IS_XVMC(imgfmt) || IMGFMT_IS_VDPAU(imgfmt)) {
 151         sh_video_t *sh     = avctx->opaque;
 152         vd_ffmpeg_ctx *ctx = sh->context;
 153         ctx->do_dr1    = 1;
 154         ctx->do_slices = 1;
 155         avctx->thread_count    = 1;
 156         avctx->get_buffer      = get_buffer;
 157         avctx->release_buffer  = release_buffer;
 158         avctx->reget_buffer    = get_buffer;
 159         avctx->draw_horiz_band = draw_slice;
 160         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] XVMC-accelerated MPEG-2.\n");
 161         avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 162     }
 163 }
 164
 165 // init driver
 166 static int init(sh_video_t *sh){
 167     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 168     AVCodecContext *avctx;
 169     vd_ffmpeg_ctx *ctx;
 170     AVCodec *lavc_codec;
 171     int lowres_w=0;
 172     int do_vis_debug= lavc_param->vismv || (lavc_param->debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 173
 174     if(!avcodec_initialized){
 175         avcodec_init();
 176         avcodec_register_all();
 177         avcodec_initialized=1;
 178     }
 179
 180     ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
 181     if (!ctx)
 182         return 0;
 183     memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
 184
 185     lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
 186     if(!lavc_codec){
 187         mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Cannot find codec '%s' in libavcodec...\n", sh->codec->dll);
 188         uninit(sh);
 189         return 0;
 190     }
 191
 192     if(sh->opts->vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 193         ctx->do_slices=1;
 194
 195     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)
 196         ctx->do_dr1=1;
 197     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 198     ctx->ip_count= ctx->b_count= 0;
 199
 200     ctx->pic = avcodec_alloc_frame();
 201     ctx->avctx = avcodec_alloc_context();
 202     avctx = ctx->avctx;
 203     avctx->opaque = sh;
 204     avctx->codec_type = CODEC_TYPE_VIDEO;
 205     avctx->codec_id = lavc_codec->id;
 206
 207 #if CONFIG_VDPAU
 208     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU){
 209         avctx->get_format = get_format;
 210     }
 211 #endif /* CONFIG_VDPAU */
 212 #if CONFIG_XVMC
 213     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL){
 214         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] XVMC accelerated codec.\n");
 215         avctx->get_format= get_format;//for now only this decoder will use it
 216         // HACK around badly placed checks in mpeg_mc_decode_init
 217         set_format_params(avctx, PIX_FMT_XVMC_MPEG2_IDCT);
 218     }
 219 #endif /* CONFIG_XVMC */
 220     if(ctx->do_dr1){
 221         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 222         avctx->get_buffer= get_buffer;
 223         avctx->release_buffer= release_buffer;
 224         avctx->reget_buffer= get_buffer;
 225     }
 226
 227     avctx->flags|= lavc_param->bitexact;
 228
 229     avctx->width = sh->disp_w;
 230     avctx->height= sh->disp_h;
 231     avctx->workaround_bugs= lavc_param->workaround_bugs;
 232     avctx->error_recognition= lavc_param->error_resilience;
 233     if(lavc_param->gray) avctx->flags|= CODEC_FLAG_GRAY;
 234     avctx->flags2|= lavc_param->fast;
 235     avctx->codec_tag= sh->format;
 236     avctx->stream_codec_tag= sh->video.fccHandler;
 237     avctx->idct_algo= lavc_param->idct_algo;
 238     avctx->error_concealment= lavc_param->error_concealment;
 239     avctx->debug= lavc_param->debug;
 240     if (lavc_param->debug)
 241         av_log_set_level(AV_LOG_DEBUG);
 242     avctx->debug_mv= lavc_param->vismv;
 243     avctx->skip_top   = lavc_param->skip_top;
 244     avctx->skip_bottom= lavc_param->skip_bottom;
 245     if(lavc_param->lowres_str != NULL)
 246     {
 247         sscanf(lavc_param->lowres_str, "%d,%d", &ctx->lowres, &lowres_w);
 248         if(ctx->lowres < 1 || ctx->lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 249             ctx->lowres = 0;
 250         avctx->lowres = ctx->lowres;
 251     }
 252     avctx->skip_loop_filter = str2AVDiscard(lavc_param->skip_loop_filter_str);
 253     avctx->skip_idct = str2AVDiscard(lavc_param->skip_idct_str);
 254     avctx->skip_frame = str2AVDiscard(lavc_param->skip_frame_str);
 255
 256     if(lavc_param->avopt){
 257         if(parse_avopts(avctx, lavc_param->avopt) < 0){
 258             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_param->avopt);
 259             uninit(sh);
 260             return 0;
 261         }
 262     }
 263
 264     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 265     switch (sh->format) {
 266     case mmioFOURCC('S','V','Q','3'):
 267     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 268        in the phony AVI header if demux_lavf is used. The first case is
 269        handled here; the second case falls through to the next section. */
 270         if (sh->ImageDesc) {
 271             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 272             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 273             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 274             break;
 275         }
 276         /* fallthrough */
 277
 278     case mmioFOURCC('A','V','R','n'):
 279     case mmioFOURCC('M','J','P','G'):
 280     /* AVRn stores huffman table in AVI header */
 281     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 282        MJPG fourcc :( */
 283         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 284             break;
 285         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 286         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 287         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 288         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 289
 290 #if 0
 291         {
 292             int x;
 293             uint8_t *p = avctx->extradata;
 294
 295             for (x=0; x<avctx->extradata_size; x++)
 296                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 297             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 298         }
 299 #endif
 300         break;
 301
 302     case mmioFOURCC('R', 'V', '1', '0'):
 303     case mmioFOURCC('R', 'V', '1', '3'):
 304     case mmioFOURCC('R', 'V', '2', '0'):
 305     case mmioFOURCC('R', 'V', '3', '0'):
 306     case mmioFOURCC('R', 'V', '4', '0'):
 307         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 308             /* only 1 packet per frame & sub_id from fourcc */
 309             avctx->extradata_size= 8;
 310             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 311             ((uint32_t *)avctx->extradata)[0] = 0;
 312             ((uint32_t *)avctx->extradata)[1] =
 313                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 314         } else {
 315             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 316             avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 317             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 318             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 319         }
 320         avctx->sub_id= AV_RB32(avctx->extradata+4);
 321
 322 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 323         break;
 324
 325     default:
 326         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 327             break;
 328         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 329         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 330         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 331         break;
 332     }
 333     /* Pass palette to codec */
 334     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 335         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 336         avctx->palctrl->palette_changed = 1;
 337         if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
 338             /* Palette size in biSize */
 339             memcpy(avctx->palctrl->palette, sh->bih+1,
 340                    FFMIN(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
 341         else
 342             /* Palette size in biClrUsed */
 343             memcpy(avctx->palctrl->palette, sh->bih+1,
 344                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 345         }
 346
 347     if(sh->bih)
 348         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 349
 350     if(lavc_param->threads > 1)
 351         avcodec_thread_init(avctx, lavc_param->threads);
 352     /* open it */
 353     if (avcodec_open(avctx, lavc_codec) < 0) {
 354         mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not open codec.\n");
 355         uninit(sh);
 356         return 0;
 357     }
 358     // this is necessary in case get_format was never called and init_vo is
 359     // too late e.g. for H.264 VDPAU
 360     set_format_params(avctx, avctx->pix_fmt);
 361     mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
 362     return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
 363 }
 364
 365 // uninit driver
 366 static void uninit(sh_video_t *sh){
 367     vd_ffmpeg_ctx *ctx = sh->context;
 368     AVCodecContext *avctx = ctx->avctx;
 369
 370     if(sh->opts->lavc_param.vstats){
 371         int i;
 372         for(i=1; i<32; i++){
 373             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 374         }
 375         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] Arithmetic mean of QP: %2.4f, Harmonic mean of QP: %2.4f\n",
 376             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 377             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 378             );
 379     }
 380
 381     if (avctx) {
 382         if (avctx->codec && avcodec_close(avctx) < 0)
 383             mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not close codec.\n");
 384
 385         av_freep(&avctx->extradata);
 386         av_freep(&avctx->palctrl);
 387         av_freep(&avctx->slice_offset);
 388     }
 389
 390     av_freep(&avctx);
 391     av_freep(&ctx->pic);
 392     if (ctx)
 393         free(ctx);
 394 }
 395
 396 static void draw_slice(struct AVCodecContext *s,
 397                        const AVFrame *src, int offset[4],
 398                        int y, int type, int height){
 399     sh_video_t *sh = s->opaque;
 400     uint8_t *source[MP_MAX_PLANES]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 401 #if 0
 402     int start=0, i;
 403     int width= s->width;
 404     vd_ffmpeg_ctx *ctx = sh->context;
 405     int skip_stride= ((width << ctx->lowres)+15)>>4;
 406     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 407     int threshold= s->coded_frame->age;
 408     if(s->pict_type!=B_TYPE){
 409         for(i=0; i*16<width+16; i++){
 410             if(i*16>=width || skip[i]>=threshold){
 411                 if(start==i) start++;
 412                 else{
 413                     uint8_t *src2[3]= {src[0] + start*16,
 414                                      src[1] + start*8,
 415                                      src[2] + start*8};
 416 //printf("%2d-%2d x %d\n", start, i, y);
 417                     mpcodecs_draw_slice (sh, src2, stride, (i-start)*16, height, start*16, y);
 418                     start= i+1;
 419                 }
 420             }
 421         }
 422     }else
 423 #endif
 424     if (y < sh->disp_h) {
 425         mpcodecs_draw_slice (sh, source, src->linesize, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
 426     }
 427 }
 428
 429
 430 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 431     vd_ffmpeg_ctx *ctx = sh->context;
 432     AVCodecContext *avctx = ctx->avctx;
 433     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 434     int width, height;
 435
 436     width = avctx->width;
 437     height = avctx->height;
 438
 439     // HACK!
 440     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 441     // use dimensions from BIH to avoid black borders at the right and bottom.
 442     if (sh->bih && sh->ImageDesc) {
 443         width = sh->bih->biWidth >> ctx->lowres;
 444         height = sh->bih->biHeight >> ctx->lowres;
 445     }
 446
 447      // it is possible another vo buffers to be used after vo config()
 448      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 449     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 450         width != sh->disp_w  ||
 451         height != sh->disp_h ||
 452         pix_fmt != ctx->pix_fmt ||
 453         !ctx->vo_initialized)
 454     {
 455         // this is a special-case HACK for MPEG-1/2 VDPAU that uses neither get_format nor
 456         // sets the value correctly in avcodec_open.
 457         set_format_params(avctx, avctx->pix_fmt);
 458         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 459         if (sh->aspect == 0 ||
 460             av_cmp_q(avctx->sample_aspect_ratio,
 461                      ctx->last_sample_aspect_ratio))
 462             sh->aspect = aspect;
 463         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 464         sh->disp_w = width;
 465         sh->disp_h = height;
 466         ctx->pix_fmt = pix_fmt;
 467         ctx->best_csp = pixfmt2imgfmt(pix_fmt);
 468         if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, ctx->best_csp))
 469             return -1;
 470         ctx->vo_initialized = 1;
 471     }
 472     return 0;
 473 }
 474
 475 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 476     sh_video_t *sh = avctx->opaque;
 477     vd_ffmpeg_ctx *ctx = sh->context;
 478     mp_image_t *mpi=NULL;
 479     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 480     int type= MP_IMGTYPE_IPB;
 481     int width= avctx->width;
 482     int height= avctx->height;
 483     avcodec_align_dimensions(avctx, &width, &height);
 484 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 485
 486     if (pic->buffer_hints) {
 487         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 488         type = MP_IMGTYPE_TEMP;
 489         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 490             flags |= MP_IMGFLAG_READABLE;
 491         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 492             type = MP_IMGTYPE_STATIC;
 493             flags |= MP_IMGFLAG_PRESERVE;
 494         }
 495         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 496             type = MP_IMGTYPE_STATIC;
 497             flags |= MP_IMGFLAG_PRESERVE;
 498         }
 499         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 500                  MP_IMGFLAG_DRAW_CALLBACK:0;
 501         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 502     } else {
 503         if(!pic->reference){
 504             ctx->b_count++;
 505             flags|=(!avctx->hurry_up && ctx->do_slices) ?
 506                      MP_IMGFLAG_DRAW_CALLBACK:0;
 507         }else{
 508             ctx->ip_count++;
 509             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 510                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 511         }
 512     }
 513
 514     if(init_vo(sh, avctx->pix_fmt) < 0){
 515         avctx->release_buffer= avcodec_default_release_buffer;
 516         avctx->get_buffer= avcodec_default_get_buffer;
 517         return avctx->get_buffer(avctx, pic);
 518     }
 519
 520     if (IMGFMT_IS_XVMC(ctx->best_csp) || IMGFMT_IS_VDPAU(ctx->best_csp)) {
 521         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 522     } else
 523     if (!pic->buffer_hints) {
 524         if(ctx->b_count>1 || ctx->ip_count>2){
 525             mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] DRI failure.\n");
 526
 527             ctx->do_dr1=0; //FIXME
 528             avctx->get_buffer= avcodec_default_get_buffer;
 529             return avctx->get_buffer(avctx, pic);
 530         }
 531
 532         if(avctx->has_b_frames){
 533             type= MP_IMGTYPE_IPB;
 534         }else{
 535             type= MP_IMGTYPE_IP;
 536         }
 537         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 538     }
 539
 540     if (ctx->best_csp == IMGFMT_RGB8 || ctx->best_csp == IMGFMT_BGR8)
 541         flags |= MP_IMGFLAG_RGB_PALETTE;
 542     mpi= mpcodecs_get_image(sh, type, flags, width, height);
 543     if (!mpi) return -1;
 544
 545     // ok, let's see what did we get:
 546     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 547        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 548         // nice, filter/vo likes draw_callback :)
 549         avctx->draw_horiz_band= draw_slice;
 550     } else
 551         avctx->draw_horiz_band= NULL;
 552     if(IMGFMT_IS_VDPAU(mpi->imgfmt)) {
 553         avctx->draw_horiz_band= draw_slice;
 554     }
 555 #if CONFIG_XVMC
 556     if(IMGFMT_IS_XVMC(mpi->imgfmt)) {
 557         struct xvmc_pix_fmt *render = mpi->priv; //same as data[2]
 558         avctx->draw_horiz_band= draw_slice;
 559         if(!avctx->xvmc_acceleration) {
 560             mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] The mc_get_buffer should work only with XVMC acceleration!!");
 561             assert(0);
 562             exit(1);
 563 //            return -1;//!!fixme check error conditions in ffmpeg
 564         }
 565         if(!(mpi->flags & MP_IMGFLAG_DIRECT)) {
 566             mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "[VD_FFMPEG] Only buffers allocated by vo_xvmc allowed.\n");
 567             assert(0);
 568             exit(1);
 569 //            return -1;//!!fixme check error conditions in ffmpeg
 570         }
 571         if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 572             mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::get_buffer (xvmc render=%p)\n", render);
 573         assert(render != 0);
 574         assert(render->xvmc_id == AV_XVMC_ID);
 575         render->state |= AV_XVMC_STATE_PREDICTION;
 576     }
 577 #endif
 578
 579     pic->data[0]= mpi->planes[0];
 580     pic->data[1]= mpi->planes[1];
 581     pic->data[2]= mpi->planes[2];
 582
 583 #if 0
 584     assert(mpi->width >= ((width +align)&(~align)));
 585     assert(mpi->height >= ((height+align)&(~align)));
 586     assert(mpi->stride[0] >= mpi->width);
 587     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 588         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 589         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 590
 591         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 592         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 593         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 594         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 595         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 596         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 597     }
 598 #endif
 599
 600     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 601      * lavc will check that and die with an error message, if its not true
 602      */
 603     pic->linesize[0]= mpi->stride[0];
 604     pic->linesize[1]= mpi->stride[1];
 605     pic->linesize[2]= mpi->stride[2];
 606
 607     pic->opaque = mpi;
 608 //printf("%X\n", (int)mpi->planes[0]);
 609 #if 0
 610 if(mpi->flags&MP_IMGFLAG_DIRECT)
 611     printf("D");
 612 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 613     printf("S");
 614 else
 615     printf(".");
 616 #endif
 617     if(pic->reference){
 618         pic->age= ctx->ip_age[0];
 619
 620         ctx->ip_age[0]= ctx->ip_age[1]+1;
 621         ctx->ip_age[1]= 1;
 622         ctx->b_age++;
 623     }else{
 624         pic->age= ctx->b_age;
 625
 626         ctx->ip_age[0]++;
 627         ctx->ip_age[1]++;
 628         ctx->b_age=1;
 629     }
 630     pic->type= FF_BUFFER_TYPE_USER;
 631
 632     /* The libavcodec reordered_opaque functionality is implemented by
 633      * a similar copy in avcodec_default_get_buffer() and without a
 634      * workaround like this it'd stop working when a custom buffer
 635      * callback is used.
 636      */
 637     pic->reordered_opaque = avctx->reordered_opaque;
 638     return 0;
 639 }
 640
 641 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 642     mp_image_t *mpi= pic->opaque;
 643     sh_video_t *sh = avctx->opaque;
 644     vd_ffmpeg_ctx *ctx = sh->context;
 645     int i;
 646
 647 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 648
 649     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 650         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 651             ctx->ip_count--;
 652         else
 653             ctx->b_count--;
 654     }
 655
 656     if (mpi) {
 657         // Palette support: free palette buffer allocated in get_buffer
 658         if (mpi->bpp == 8)
 659             av_freep(&mpi->planes[1]);
 660 #if CONFIG_XVMC
 661         if (IMGFMT_IS_XVMC(mpi->imgfmt)) {
 662             struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)pic->data[2]; //same as mpi->priv
 663             if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 664                 mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::release_buffer (xvmc render=%p)\n", render);
 665             assert(render!=NULL);
 666             assert(render->xvmc_id == AV_XVMC_ID);
 667             render->state&=~AV_XVMC_STATE_PREDICTION;
 668         }
 669 #endif
 670         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 671         mpi->usage_count--;
 672     }
 673
 674     if(pic->type!=FF_BUFFER_TYPE_USER){
 675         avcodec_default_release_buffer(avctx, pic);
 676         return;
 677     }
 678
 679     for(i=0; i<4; i++){
 680         pic->data[i]= NULL;
 681     }
 682 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 683 }
 684
 685 // copypaste from demux_real.c - it should match to get it working!
 686 //FIXME put into some header
 687 typedef struct dp_hdr_s {
 688     uint32_t chunks;        // number of chunks
 689     uint32_t timestamp; // timestamp from packet header
 690     uint32_t len;        // length of actual data
 691     uint32_t chunktab;        // offset to chunk offset array
 692 } dp_hdr_t;
 693
 694 static void swap_palette(void *pal) {
 695     int i;
 696     uint32_t *p = pal;
 697     for (i = 0; i < AVPALETTE_COUNT; i++)
 698         p[i] = le2me_32(p[i]);
 699 }
 700
 701 // decode a frame
 702 static struct mp_image *decode(struct sh_video *sh, void *data, int len,
 703                                int flags, double *reordered_pts)
 704 {
 705     int got_picture=0;
 706     int ret;
 707     vd_ffmpeg_ctx *ctx = sh->context;
 708     AVFrame *pic= ctx->pic;
 709     AVCodecContext *avctx = ctx->avctx;
 710     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 711     mp_image_t *mpi=NULL;
 712     int dr1= ctx->do_dr1;
 713     AVPacket pkt;
 714
 715     if(len<=0) return NULL; // skipped frame
 716
 717 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 718     if (!dr1)
 719     avctx->draw_horiz_band=NULL;
 720     if(ctx->vo_initialized && !(flags&3) && !dr1){
 721         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 722             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 723             sh->disp_w, sh->disp_h);
 724         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 725             // vd core likes slices!
 726             avctx->draw_horiz_band=draw_slice;
 727         }
 728     }
 729
 730     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 731
 732     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 733            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 734     av_init_packet(&pkt);
 735     pkt.data = data;
 736     pkt.size = len;
 737     // HACK: make PNGs decode normally instead of as CorePNG delta frames
 738     pkt.flags = PKT_FLAG_KEY;
 739     // The avcodec opaque field stupidly supports only int64_t type
 740     *(double *)&avctx->reordered_opaque = *reordered_pts;
 741     ret = avcodec_decode_video2(avctx, pic, &got_picture, &pkt);
 742     *reordered_pts = *(double *)&pic->reordered_opaque;
 743
 744     dr1= ctx->do_dr1;
 745     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 746 //printf("repeat: %d\n", pic->repeat_pict);
 747 //-- vstats generation
 748     while(lavc_param->vstats){ // always one time loop
 749         static FILE *fvstats=NULL;
 750         char filename[20];
 751         static long long int all_len=0;
 752         static int frame_number=0;
 753         static double all_frametime=0.0;
 754         AVFrame *pic= avctx->coded_frame;
 755         double quality=0.0;
 756
 757         if(!fvstats) {
 758             time_t today2;
 759             struct tm *today;
 760             today2 = time(NULL);
 761             today = localtime(&today2);
 762             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 763                 today->tm_min, today->tm_sec);
 764             fvstats = fopen(filename, "w");
 765             if(!fvstats) {
 766                 perror("fopen");
 767                 lavc_param->vstats=0; // disable block
 768                 break;
 769                 /*exit(1);*/
 770             }
 771         }
 772
 773         // average MB quantizer
 774         {
 775             int x, y;
 776             int w = ((avctx->width  << ctx->lowres)+15) >> 4;
 777             int h = ((avctx->height << ctx->lowres)+15) >> 4;
 778             int8_t *q = pic->qscale_table;
 779             for(y = 0; y < h; y++) {
 780                 for(x = 0; x < w; x++)
 781                     quality += (double)*(q+x);
 782                 q += pic->qstride;
 783             }
 784             quality /= w * h;
 785         }
 786
 787         all_len+=len;
 788         all_frametime+=sh->frametime;
 789         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 790             ++frame_number, quality, len, (double)all_len/1024);
 791         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 792            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 793            (double)(all_len*8)/all_frametime/1000.0);
 794         switch(pic->pict_type){
 795         case FF_I_TYPE:
 796             fprintf(fvstats, "type= I\n");
 797             break;
 798         case FF_P_TYPE:
 799             fprintf(fvstats, "type= P\n");
 800             break;
 801         case FF_S_TYPE:
 802             fprintf(fvstats, "type= S\n");
 803             break;
 804         case FF_B_TYPE:
 805             fprintf(fvstats, "type= B\n");
 806             break;
 807         default:
 808             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 809             break;
 810         }
 811
 812         ctx->qp_stat[(int)(quality+0.5)]++;
 813         ctx->qp_sum += quality;
 814         ctx->inv_qp_sum += 1.0/(double)quality;
 815
 816         break;
 817     }
 818 //--
 819
 820     if(!got_picture) return NULL;        // skipped image
 821
 822     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 823
 824     if(dr1 && pic->opaque){
 825         mpi= (mp_image_t *)pic->opaque;
 826     }
 827
 828     if(!mpi)
 829     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 830         avctx->width, avctx->height);
 831     if(!mpi){        // temporary!
 832         mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] Couldn't allocate image for codec.\n");
 833         return NULL;
 834     }
 835
 836     if(!dr1){
 837         mpi->planes[0]=pic->data[0];
 838         mpi->planes[1]=pic->data[1];
 839         mpi->planes[2]=pic->data[2];
 840         mpi->stride[0]=pic->linesize[0];
 841         mpi->stride[1]=pic->linesize[1];
 842         mpi->stride[2]=pic->linesize[2];
 843     }
 844
 845     if (!mpi->planes[0])
 846         return NULL;
 847
 848     if(avctx->pix_fmt==PIX_FMT_YUV422P && mpi->chroma_y_shift==1){
 849         // we have 422p but user wants 420p
 850         mpi->stride[1]*=2;
 851         mpi->stride[2]*=2;
 852     }
 853
 854 #if HAVE_BIGENDIAN
 855     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 856     if (mpi->bpp == 8)
 857         swap_palette(mpi->planes[1]);
 858 #endif
 859 /* to comfirm with newer lavc style */
 860     mpi->qscale =pic->qscale_table;
 861     mpi->qstride=pic->qstride;
 862     mpi->pict_type=pic->pict_type;
 863     mpi->qscale_type= pic->qscale_type;
 864     mpi->fields = MP_IMGFIELD_ORDERED;
 865     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 866     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 867     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 868
 869     return mpi;
 870 }
 871
 872 #if CONFIG_XVMC || CONFIG_VDPAU
 873 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 874                                     const enum PixelFormat *fmt){
 875     enum PixelFormat selected_format;
 876     int imgfmt;
 877     sh_video_t *sh = avctx->opaque;
 878     int i;
 879
 880     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 881         imgfmt = pixfmt2imgfmt(fmt[i]);
 882         if(!IMGFMT_IS_XVMC(imgfmt) && !IMGFMT_IS_VDPAU(imgfmt)) continue;
 883         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] Trying pixfmt=%d.\n", i);
 884         if(init_vo(sh, fmt[i]) >= 0) {
 885             break;
 886         }
 887     }
 888     selected_format = fmt[i];
 889     set_format_params(avctx, selected_format);
 890     return selected_format;
 891 }
 892 #endif /* CONFIG_XVMC || CONFIG_VDPAU */
 893
 894 const struct vd_functions mpcodecs_vd_ffmpeg = {
 895     .info = &info,
 896     .init = init,
 897     .uninit = uninit,
 898     .control = control,
 899     .decode2 = decode
 900 };