libmpcodecs/vd_ffmpeg.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <assert.h>
  22 #include <time.h>
  23 #include <stdbool.h>
  24
  25 #include "config.h"
  26 #include "mp_msg.h"
  27 #include "help_mp.h"
  28 #include "options.h"
  29 #include "av_opts.h"
  30
  31 #include "libavutil/common.h"
  32 #include "ffmpeg_files/intreadwrite.h"
  33 #include "mpbswap.h"
  34 #include "fmt-conversion.h"
  35
  36 #include "vd.h"
  37 #include "img_format.h"
  38 #include "libmpdemux/stheader.h"
  39 #include "codec-cfg.h"
  40
  41 static const vd_info_t info = {
  42     "FFmpeg's libavcodec codec family",
  43     "ffmpeg",
  44     "A'rpi",
  45     "A'rpi, Michael, Alex",
  46     "native codecs"
  47 };
  48
  49 #include "libavcodec/avcodec.h"
  50
  51 #if AVPALETTE_SIZE > 1024
  52 #error palette too large, adapt libmpcodecs/vf.c:vf_get_image
  53 #endif
  54
  55 #if CONFIG_XVMC
  56 #include "libavcodec/xvmc.h"
  57 #endif
  58
  59 int avcodec_initialized=0;
  60
  61 typedef struct {
  62     AVCodecContext *avctx;
  63     AVFrame *pic;
  64     enum PixelFormat pix_fmt;
  65     int do_slices;
  66     int do_dr1;
  67     int vo_initialized;
  68     int best_csp;
  69     int b_age;
  70     int ip_age[2];
  71     int qp_stat[32];
  72     double qp_sum;
  73     double inv_qp_sum;
  74     int ip_count;
  75     int b_count;
  76     AVRational last_sample_aspect_ratio;
  77     int lowres;
  78 } vd_ffmpeg_ctx;
  79
  80 #include "m_option.h"
  81
  82 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  83 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  84 static void draw_slice(struct AVCodecContext *s, const AVFrame *src,
  85                        int offset[4], int y, int type, int height);
  86
  87 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  88                                    const enum PixelFormat *pix_fmt);
  89 static void uninit(struct sh_video *sh);
  90
  91 const m_option_t lavc_decode_opts_conf[]={
  92     OPT_INTRANGE("bug", lavc_param.workaround_bugs, 0, -1, 999999),
  93     OPT_INTRANGE("er", lavc_param.error_resilience, 0, 0, 99),
  94     OPT_FLAG_ON("gray", lavc_param.gray, 0),
  95     OPT_INTRANGE("idct", lavc_param.idct_algo, 0, 0, 99),
  96     OPT_INTRANGE("ec", lavc_param.error_concealment, 0, 0, 99),
  97     OPT_FLAG_ON("vstats", lavc_param.vstats, 0),
  98     OPT_INTRANGE("debug", lavc_param.debug, 0, 0, 9999999),
  99     OPT_INTRANGE("vismv", lavc_param.vismv, 0, 0, 9999999),
 100     OPT_INTRANGE("st", lavc_param.skip_top, 0, 0, 999),
 101     OPT_INTRANGE("sb", lavc_param.skip_bottom, 0, 0, 999),
 102     OPT_FLAG_CONSTANTS("fast", lavc_param.fast, 0, 0, CODEC_FLAG2_FAST),
 103     OPT_STRING("lowres", lavc_param.lowres_str, 0),
 104     OPT_STRING("skiploopfilter", lavc_param.skip_loop_filter_str, 0),
 105     OPT_STRING("skipidct", lavc_param.skip_idct_str, 0),
 106     OPT_STRING("skipframe", lavc_param.skip_frame_str, 0),
 107     OPT_INTRANGE("threads", lavc_param.threads, 0, 1, 8),
 108     OPT_FLAG_CONSTANTS("bitexact", lavc_param.bitexact, 0, 0, CODEC_FLAG_BITEXACT),
 109     OPT_STRING("o", lavc_param.avopt, 0),
 110     {NULL, NULL, 0, 0, 0, 0, NULL}
 111 };
 112
 113 static enum AVDiscard str2AVDiscard(char *str) {
 114     if (!str)                               return AVDISCARD_DEFAULT;
 115     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
 116     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
 117     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
 118     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 119     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 120     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 121     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 122     return AVDISCARD_DEFAULT;
 123 }
 124
 125 // to set/get/query special features/parameters
 126 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 127     vd_ffmpeg_ctx *ctx = sh->context;
 128     AVCodecContext *avctx = ctx->avctx;
 129     switch(cmd){
 130     case VDCTRL_QUERY_FORMAT:
 131     {
 132         int format =(*((int *)arg));
 133         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 134         // possible conversions:
 135         switch(format){
 136         case IMGFMT_YV12:
 137         case IMGFMT_IYUV:
 138         case IMGFMT_I420:
 139             // "converted" using pointer/stride modification
 140             if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
 141             if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 142             break;
 143 #if CONFIG_XVMC
 144         case IMGFMT_XVMC_IDCT_MPEG2:
 145         case IMGFMT_XVMC_MOCO_MPEG2:
 146             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 147 #endif
 148         }
 149         return CONTROL_FALSE;
 150     }
 151     case VDCTRL_RESYNC_STREAM:
 152         avcodec_flush_buffers(avctx);
 153         return CONTROL_TRUE;
 154     case VDCTRL_QUERY_UNSEEN_FRAMES:;
 155         int delay = avctx->has_b_frames;
 156 #if defined(FF_THREAD_FRAME) && LIBAVCODEC_VERSION_MAJOR <= 52 && LIBAVCODEC_VERSION_MINOR < 49
 157         // FFmpeg-mt has extra delay when using frame threading
 158         // In newer versions that is included in has_b_frames
 159         if (avctx->thread_type & FF_THREAD_FRAME)
 160             delay += avctx->thread_count - 1;
 161 #endif
 162         return delay + 10;
 163     }
 164     return CONTROL_UNKNOWN;
 165 }
 166
 167 // init driver
 168 static int init(sh_video_t *sh){
 169     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 170     AVCodecContext *avctx;
 171     vd_ffmpeg_ctx *ctx;
 172     AVCodec *lavc_codec;
 173     int lowres_w=0;
 174     int do_vis_debug= lavc_param->vismv || (lavc_param->debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 175
 176     if(!avcodec_initialized){
 177         avcodec_init();
 178         avcodec_register_all();
 179         avcodec_initialized=1;
 180     }
 181
 182     ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
 183     if (!ctx)
 184         return 0;
 185     memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
 186
 187     lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
 188     if(!lavc_codec){
 189         mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Cannot find codec '%s' in libavcodec...\n", sh->codec->dll);
 190         uninit(sh);
 191         return 0;
 192     }
 193
 194     if(sh->opts->vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 195         ctx->do_slices=1;
 196
 197     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)
 198         ctx->do_dr1=1;
 199     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 200     ctx->ip_count= ctx->b_count= 0;
 201
 202     ctx->pic = avcodec_alloc_frame();
 203     ctx->avctx = avcodec_alloc_context();
 204     avctx = ctx->avctx;
 205     avctx->opaque = sh;
 206     avctx->codec_type = CODEC_TYPE_VIDEO;
 207     avctx->codec_id = lavc_codec->id;
 208
 209     if (lavc_codec->capabilities & CODEC_CAP_HWACCEL   // XvMC
 210         || lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) {
 211         ctx->do_dr1    = true;
 212         ctx->do_slices = true;
 213         lavc_param->threads    = 1;
 214         avctx->get_format      = get_format;
 215         avctx->get_buffer      = get_buffer;
 216         avctx->release_buffer  = release_buffer;
 217         avctx->reget_buffer    = get_buffer;
 218         avctx->draw_horiz_band = draw_slice;
 219         if (lavc_codec->capabilities & CODEC_CAP_HWACCEL)
 220             mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] XVMC-accelerated "
 221                    "MPEG-2.\n");
 222         if (lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
 223             mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] VDPAU hardware "
 224                    "decoding.\n");
 225         avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 226     }
 227
 228     /* Our get_buffer and draw_horiz_band callbacks are not safe to call
 229      * from other threads. */
 230     if (lavc_param->threads > 1) {
 231         ctx->do_dr1 = false;
 232         ctx->do_slices = false;
 233     }
 234
 235     if(ctx->do_dr1){
 236         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 237         avctx->get_buffer= get_buffer;
 238         avctx->release_buffer= release_buffer;
 239         avctx->reget_buffer= get_buffer;
 240     }
 241
 242     avctx->flags|= lavc_param->bitexact;
 243
 244     avctx->width = sh->disp_w;
 245     avctx->height= sh->disp_h;
 246     avctx->workaround_bugs= lavc_param->workaround_bugs;
 247     avctx->error_recognition= lavc_param->error_resilience;
 248     if(lavc_param->gray) avctx->flags|= CODEC_FLAG_GRAY;
 249     avctx->flags2|= lavc_param->fast;
 250     avctx->codec_tag= sh->format;
 251     avctx->stream_codec_tag= sh->video.fccHandler;
 252     avctx->idct_algo= lavc_param->idct_algo;
 253     avctx->error_concealment= lavc_param->error_concealment;
 254     avctx->debug= lavc_param->debug;
 255     if (lavc_param->debug)
 256         av_log_set_level(AV_LOG_DEBUG);
 257     avctx->debug_mv= lavc_param->vismv;
 258     avctx->skip_top   = lavc_param->skip_top;
 259     avctx->skip_bottom= lavc_param->skip_bottom;
 260     if(lavc_param->lowres_str != NULL)
 261     {
 262         sscanf(lavc_param->lowres_str, "%d,%d", &ctx->lowres, &lowres_w);
 263         if(ctx->lowres < 1 || ctx->lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 264             ctx->lowres = 0;
 265         avctx->lowres = ctx->lowres;
 266     }
 267     avctx->skip_loop_filter = str2AVDiscard(lavc_param->skip_loop_filter_str);
 268     avctx->skip_idct = str2AVDiscard(lavc_param->skip_idct_str);
 269     avctx->skip_frame = str2AVDiscard(lavc_param->skip_frame_str);
 270
 271     if(lavc_param->avopt){
 272         if(parse_avopts(avctx, lavc_param->avopt) < 0){
 273             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_param->avopt);
 274             uninit(sh);
 275             return 0;
 276         }
 277     }
 278
 279     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 280     switch (sh->format) {
 281     case mmioFOURCC('S','V','Q','3'):
 282     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 283        in the phony AVI header if demux_lavf is used. The first case is
 284        handled here; the second case falls through to the next section. */
 285         if (sh->ImageDesc) {
 286             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 287             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 288             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 289             break;
 290         }
 291         /* fallthrough */
 292
 293     case mmioFOURCC('A','V','R','n'):
 294     case mmioFOURCC('M','J','P','G'):
 295     /* AVRn stores huffman table in AVI header */
 296     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 297        MJPG fourcc :( */
 298         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 299             break;
 300         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 301         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 302         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 303         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 304
 305 #if 0
 306         {
 307             int x;
 308             uint8_t *p = avctx->extradata;
 309
 310             for (x=0; x<avctx->extradata_size; x++)
 311                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 312             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 313         }
 314 #endif
 315         break;
 316
 317     case mmioFOURCC('R', 'V', '1', '0'):
 318     case mmioFOURCC('R', 'V', '1', '3'):
 319     case mmioFOURCC('R', 'V', '2', '0'):
 320     case mmioFOURCC('R', 'V', '3', '0'):
 321     case mmioFOURCC('R', 'V', '4', '0'):
 322         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 323             /* only 1 packet per frame & sub_id from fourcc */
 324             avctx->extradata_size= 8;
 325             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 326             ((uint32_t *)avctx->extradata)[0] = 0;
 327             ((uint32_t *)avctx->extradata)[1] =
 328                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 329         } else {
 330             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 331             avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 332             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 333             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 334         }
 335         avctx->sub_id= AV_RB32(avctx->extradata+4);
 336
 337 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 338         break;
 339
 340     default:
 341         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 342             break;
 343         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 344         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 345         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 346         break;
 347     }
 348     /* Pass palette to codec */
 349     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 350         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 351         avctx->palctrl->palette_changed = 1;
 352         if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
 353             /* Palette size in biSize */
 354             memcpy(avctx->palctrl->palette, sh->bih+1,
 355                    FFMIN(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
 356         else
 357             /* Palette size in biClrUsed */
 358             memcpy(avctx->palctrl->palette, sh->bih+1,
 359                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 360         }
 361
 362     if(sh->bih)
 363         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 364
 365     if(lavc_param->threads > 1)
 366         avcodec_thread_init(avctx, lavc_param->threads);
 367     /* open it */
 368     if (avcodec_open(avctx, lavc_codec) < 0) {
 369         mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not open codec.\n");
 370         uninit(sh);
 371         return 0;
 372     }
 373     mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
 374     return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
 375 }
 376
 377 // uninit driver
 378 static void uninit(sh_video_t *sh){
 379     vd_ffmpeg_ctx *ctx = sh->context;
 380     AVCodecContext *avctx = ctx->avctx;
 381
 382     if(sh->opts->lavc_param.vstats){
 383         int i;
 384         for(i=1; i<32; i++){
 385             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 386         }
 387         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] Arithmetic mean of QP: %2.4f, Harmonic mean of QP: %2.4f\n",
 388             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 389             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 390             );
 391     }
 392
 393     if (avctx) {
 394         if (avctx->codec && avcodec_close(avctx) < 0)
 395             mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not close codec.\n");
 396
 397         av_freep(&avctx->extradata);
 398         av_freep(&avctx->palctrl);
 399         av_freep(&avctx->slice_offset);
 400     }
 401
 402     av_freep(&avctx);
 403     av_freep(&ctx->pic);
 404     if (ctx)
 405         free(ctx);
 406 }
 407
 408 static void draw_slice(struct AVCodecContext *s,
 409                        const AVFrame *src, int offset[4],
 410                        int y, int type, int height){
 411     sh_video_t *sh = s->opaque;
 412     uint8_t *source[MP_MAX_PLANES]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 413     int strides[MP_MAX_PLANES] = {src->linesize[0], src->linesize[1], src->linesize[2]};
 414 #if 0
 415     int start=0, i;
 416     int width= s->width;
 417     vd_ffmpeg_ctx *ctx = sh->context;
 418     int skip_stride= ((width << ctx->lowres)+15)>>4;
 419     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 420     int threshold= s->coded_frame->age;
 421     if(s->pict_type!=B_TYPE){
 422         for(i=0; i*16<width+16; i++){
 423             if(i*16>=width || skip[i]>=threshold){
 424                 if(start==i) start++;
 425                 else{
 426                     uint8_t *src2[3]= {src[0] + start*16,
 427                                      src[1] + start*8,
 428                                      src[2] + start*8};
 429 //printf("%2d-%2d x %d\n", start, i, y);
 430                     mpcodecs_draw_slice (sh, src2, stride, (i-start)*16, height, start*16, y);
 431                     start= i+1;
 432                 }
 433             }
 434         }
 435     }else
 436 #endif
 437     if (height < 0)
 438     {
 439         int i;
 440         height = -height;
 441         y -= height;
 442         for (i = 0; i < MP_MAX_PLANES; i++)
 443         {
 444             strides[i] = -strides[i];
 445             source[i] -= strides[i];
 446         }
 447     }
 448     if (y < sh->disp_h) {
 449         mpcodecs_draw_slice (sh, source, strides, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
 450     }
 451 }
 452
 453
 454 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 455     vd_ffmpeg_ctx *ctx = sh->context;
 456     AVCodecContext *avctx = ctx->avctx;
 457     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 458     int width, height;
 459
 460     width = avctx->width;
 461     height = avctx->height;
 462
 463     // HACK!
 464     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 465     // use dimensions from BIH to avoid black borders at the right and bottom.
 466     if (sh->bih && sh->ImageDesc) {
 467         width = sh->bih->biWidth >> ctx->lowres;
 468         height = sh->bih->biHeight >> ctx->lowres;
 469     }
 470
 471      // it is possible another vo buffers to be used after vo config()
 472      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 473     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 474         width != sh->disp_w  ||
 475         height != sh->disp_h ||
 476         pix_fmt != ctx->pix_fmt ||
 477         !ctx->vo_initialized)
 478     {
 479         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 480         if (sh->aspect == 0 ||
 481             av_cmp_q(avctx->sample_aspect_ratio,
 482                      ctx->last_sample_aspect_ratio))
 483             sh->aspect = aspect;
 484         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 485         sh->disp_w = width;
 486         sh->disp_h = height;
 487         ctx->pix_fmt = pix_fmt;
 488         ctx->best_csp = pixfmt2imgfmt(pix_fmt);
 489         if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, ctx->best_csp))
 490             return -1;
 491         ctx->vo_initialized = 1;
 492     }
 493     return 0;
 494 }
 495
 496 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 497     sh_video_t *sh = avctx->opaque;
 498     vd_ffmpeg_ctx *ctx = sh->context;
 499     mp_image_t *mpi=NULL;
 500     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 501     int type= MP_IMGTYPE_IPB;
 502     int width= avctx->width;
 503     int height= avctx->height;
 504     avcodec_align_dimensions(avctx, &width, &height);
 505 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 506
 507     if (pic->buffer_hints) {
 508         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 509         type = MP_IMGTYPE_TEMP;
 510         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 511             flags |= MP_IMGFLAG_READABLE;
 512         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 513             type = MP_IMGTYPE_STATIC;
 514             flags |= MP_IMGFLAG_PRESERVE;
 515         }
 516         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 517             type = MP_IMGTYPE_STATIC;
 518             flags |= MP_IMGFLAG_PRESERVE;
 519         }
 520         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 521                  MP_IMGFLAG_DRAW_CALLBACK:0;
 522         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 523     } else {
 524         if(!pic->reference){
 525             ctx->b_count++;
 526             flags|=(!avctx->hurry_up && ctx->do_slices) ?
 527                      MP_IMGFLAG_DRAW_CALLBACK:0;
 528         }else{
 529             ctx->ip_count++;
 530             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 531                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 532         }
 533     }
 534
 535     if(init_vo(sh, avctx->pix_fmt) < 0){
 536         avctx->release_buffer= avcodec_default_release_buffer;
 537         avctx->get_buffer= avcodec_default_get_buffer;
 538         return avctx->get_buffer(avctx, pic);
 539     }
 540
 541     if (IMGFMT_IS_XVMC(ctx->best_csp) || IMGFMT_IS_VDPAU(ctx->best_csp)) {
 542         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 543     } else
 544     if (!pic->buffer_hints) {
 545         if(ctx->b_count>1 || ctx->ip_count>2){
 546             mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] DRI failure.\n");
 547
 548             ctx->do_dr1=0; //FIXME
 549             avctx->get_buffer= avcodec_default_get_buffer;
 550             return avctx->get_buffer(avctx, pic);
 551         }
 552
 553         if(avctx->has_b_frames){
 554             type= MP_IMGTYPE_IPB;
 555         }else{
 556             type= MP_IMGTYPE_IP;
 557         }
 558         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 559     }
 560
 561     if (ctx->best_csp == IMGFMT_RGB8 || ctx->best_csp == IMGFMT_BGR8)
 562         flags |= MP_IMGFLAG_RGB_PALETTE;
 563     mpi= mpcodecs_get_image(sh, type, flags, width, height);
 564     if (!mpi) return -1;
 565
 566     // ok, let's see what did we get:
 567     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 568        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 569         // nice, filter/vo likes draw_callback :)
 570         avctx->draw_horiz_band= draw_slice;
 571     } else
 572         avctx->draw_horiz_band= NULL;
 573     if(IMGFMT_IS_VDPAU(mpi->imgfmt)) {
 574         avctx->draw_horiz_band= draw_slice;
 575     }
 576 #if CONFIG_XVMC
 577     if(IMGFMT_IS_XVMC(mpi->imgfmt)) {
 578         struct xvmc_pix_fmt *render = mpi->priv; //same as data[2]
 579         avctx->draw_horiz_band= draw_slice;
 580         if(!avctx->xvmc_acceleration) {
 581             mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] The mc_get_buffer should work only with XVMC acceleration!!");
 582             assert(0);
 583             exit(1);
 584 //            return -1;//!!fixme check error conditions in ffmpeg
 585         }
 586         if(!(mpi->flags & MP_IMGFLAG_DIRECT)) {
 587             mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "[VD_FFMPEG] Only buffers allocated by vo_xvmc allowed.\n");
 588             assert(0);
 589             exit(1);
 590 //            return -1;//!!fixme check error conditions in ffmpeg
 591         }
 592         if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 593             mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::get_buffer (xvmc render=%p)\n", render);
 594         assert(render != 0);
 595         assert(render->xvmc_id == AV_XVMC_ID);
 596         render->state |= AV_XVMC_STATE_PREDICTION;
 597     }
 598 #endif
 599
 600     pic->data[0]= mpi->planes[0];
 601     pic->data[1]= mpi->planes[1];
 602     pic->data[2]= mpi->planes[2];
 603     pic->data[3]= mpi->planes[3];
 604
 605 #if 0
 606     assert(mpi->width >= ((width +align)&(~align)));
 607     assert(mpi->height >= ((height+align)&(~align)));
 608     assert(mpi->stride[0] >= mpi->width);
 609     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 610         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 611         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 612
 613         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 614         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 615         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 616         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 617         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 618         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 619     }
 620 #endif
 621
 622     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 623      * lavc will check that and die with an error message, if its not true
 624      */
 625     pic->linesize[0]= mpi->stride[0];
 626     pic->linesize[1]= mpi->stride[1];
 627     pic->linesize[2]= mpi->stride[2];
 628     pic->linesize[3]= mpi->stride[3];
 629
 630     pic->opaque = mpi;
 631 //printf("%X\n", (int)mpi->planes[0]);
 632 #if 0
 633 if(mpi->flags&MP_IMGFLAG_DIRECT)
 634     printf("D");
 635 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 636     printf("S");
 637 else
 638     printf(".");
 639 #endif
 640     if(pic->reference){
 641         pic->age= ctx->ip_age[0];
 642
 643         ctx->ip_age[0]= ctx->ip_age[1]+1;
 644         ctx->ip_age[1]= 1;
 645         ctx->b_age++;
 646     }else{
 647         pic->age= ctx->b_age;
 648
 649         ctx->ip_age[0]++;
 650         ctx->ip_age[1]++;
 651         ctx->b_age=1;
 652     }
 653     pic->type= FF_BUFFER_TYPE_USER;
 654
 655     /* The libavcodec reordered_opaque functionality is implemented by
 656      * a similar copy in avcodec_default_get_buffer() and without a
 657      * workaround like this it'd stop working when a custom buffer
 658      * callback is used.
 659      */
 660     pic->reordered_opaque = avctx->reordered_opaque;
 661     return 0;
 662 }
 663
 664 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 665     mp_image_t *mpi= pic->opaque;
 666     sh_video_t *sh = avctx->opaque;
 667     vd_ffmpeg_ctx *ctx = sh->context;
 668     int i;
 669
 670 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 671
 672     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 673         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 674             ctx->ip_count--;
 675         else
 676             ctx->b_count--;
 677     }
 678
 679     if (mpi) {
 680         // Palette support: free palette buffer allocated in get_buffer
 681         if (mpi->bpp == 8)
 682             av_freep(&mpi->planes[1]);
 683 #if CONFIG_XVMC
 684         if (IMGFMT_IS_XVMC(mpi->imgfmt)) {
 685             struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)pic->data[2]; //same as mpi->priv
 686             if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 687                 mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::release_buffer (xvmc render=%p)\n", render);
 688             assert(render!=NULL);
 689             assert(render->xvmc_id == AV_XVMC_ID);
 690             render->state&=~AV_XVMC_STATE_PREDICTION;
 691         }
 692 #endif
 693         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 694         mpi->usage_count--;
 695     }
 696
 697     if(pic->type!=FF_BUFFER_TYPE_USER){
 698         avcodec_default_release_buffer(avctx, pic);
 699         return;
 700     }
 701
 702     for(i=0; i<4; i++){
 703         pic->data[i]= NULL;
 704     }
 705 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 706 }
 707
 708 // copypaste from demux_real.c - it should match to get it working!
 709 //FIXME put into some header
 710 typedef struct dp_hdr_s {
 711     uint32_t chunks;        // number of chunks
 712     uint32_t timestamp; // timestamp from packet header
 713     uint32_t len;        // length of actual data
 714     uint32_t chunktab;        // offset to chunk offset array
 715 } dp_hdr_t;
 716
 717 static void swap_palette(void *pal) {
 718     int i;
 719     uint32_t *p = pal;
 720     for (i = 0; i < AVPALETTE_COUNT; i++)
 721         p[i] = le2me_32(p[i]);
 722 }
 723
 724 // decode a frame
 725 static struct mp_image *decode(struct sh_video *sh, void *data, int len,
 726                                int flags, double *reordered_pts)
 727 {
 728     int got_picture=0;
 729     int ret;
 730     vd_ffmpeg_ctx *ctx = sh->context;
 731     AVFrame *pic= ctx->pic;
 732     AVCodecContext *avctx = ctx->avctx;
 733     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 734     mp_image_t *mpi=NULL;
 735     int dr1= ctx->do_dr1;
 736     AVPacket pkt;
 737
 738     if(len<=0) return NULL; // skipped frame
 739
 740 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 741     if (!dr1)
 742     avctx->draw_horiz_band=NULL;
 743     if(ctx->vo_initialized && !(flags&3) && !dr1){
 744         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 745             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 746             sh->disp_w, sh->disp_h);
 747         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 748             // vd core likes slices!
 749             avctx->draw_horiz_band=draw_slice;
 750         }
 751     }
 752
 753     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 754
 755     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 756            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 757     av_init_packet(&pkt);
 758     pkt.data = data;
 759     pkt.size = len;
 760     // HACK: make PNGs decode normally instead of as CorePNG delta frames
 761     pkt.flags = PKT_FLAG_KEY;
 762     // The avcodec opaque field stupidly supports only int64_t type
 763     *(double *)&avctx->reordered_opaque = *reordered_pts;
 764     ret = avcodec_decode_video2(avctx, pic, &got_picture, &pkt);
 765     *reordered_pts = *(double *)&pic->reordered_opaque;
 766
 767     dr1= ctx->do_dr1;
 768     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 769 //printf("repeat: %d\n", pic->repeat_pict);
 770 //-- vstats generation
 771     while(lavc_param->vstats){ // always one time loop
 772         static FILE *fvstats=NULL;
 773         char filename[20];
 774         static long long int all_len=0;
 775         static int frame_number=0;
 776         static double all_frametime=0.0;
 777         AVFrame *pic= avctx->coded_frame;
 778         double quality=0.0;
 779
 780         if(!fvstats) {
 781             time_t today2;
 782             struct tm *today;
 783             today2 = time(NULL);
 784             today = localtime(&today2);
 785             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 786                 today->tm_min, today->tm_sec);
 787             fvstats = fopen(filename, "w");
 788             if(!fvstats) {
 789                 perror("fopen");
 790                 lavc_param->vstats=0; // disable block
 791                 break;
 792                 /*exit(1);*/
 793             }
 794         }
 795
 796         // average MB quantizer
 797         {
 798             int x, y;
 799             int w = ((avctx->width  << ctx->lowres)+15) >> 4;
 800             int h = ((avctx->height << ctx->lowres)+15) >> 4;
 801             int8_t *q = pic->qscale_table;
 802             for(y = 0; y < h; y++) {
 803                 for(x = 0; x < w; x++)
 804                     quality += (double)*(q+x);
 805                 q += pic->qstride;
 806             }
 807             quality /= w * h;
 808         }
 809
 810         all_len+=len;
 811         all_frametime+=sh->frametime;
 812         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 813             ++frame_number, quality, len, (double)all_len/1024);
 814         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 815            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 816            (double)(all_len*8)/all_frametime/1000.0);
 817         switch(pic->pict_type){
 818         case FF_I_TYPE:
 819             fprintf(fvstats, "type= I\n");
 820             break;
 821         case FF_P_TYPE:
 822             fprintf(fvstats, "type= P\n");
 823             break;
 824         case FF_S_TYPE:
 825             fprintf(fvstats, "type= S\n");
 826             break;
 827         case FF_B_TYPE:
 828             fprintf(fvstats, "type= B\n");
 829             break;
 830         default:
 831             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 832             break;
 833         }
 834
 835         ctx->qp_stat[(int)(quality+0.5)]++;
 836         ctx->qp_sum += quality;
 837         ctx->inv_qp_sum += 1.0/(double)quality;
 838
 839         break;
 840     }
 841 //--
 842
 843     if(!got_picture) return NULL;        // skipped image
 844
 845     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 846
 847     if(dr1 && pic->opaque){
 848         mpi= (mp_image_t *)pic->opaque;
 849     }
 850
 851     if(!mpi)
 852     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 853         avctx->width, avctx->height);
 854     if(!mpi){        // temporary!
 855         mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] Couldn't allocate image for codec.\n");
 856         return NULL;
 857     }
 858
 859     if(!dr1){
 860         mpi->planes[0]=pic->data[0];
 861         mpi->planes[1]=pic->data[1];
 862         mpi->planes[2]=pic->data[2];
 863         mpi->planes[3]=pic->data[3];
 864         mpi->stride[0]=pic->linesize[0];
 865         mpi->stride[1]=pic->linesize[1];
 866         mpi->stride[2]=pic->linesize[2];
 867         mpi->stride[3]=pic->linesize[3];
 868     }
 869
 870     if (!mpi->planes[0])
 871         return NULL;
 872
 873     if(avctx->pix_fmt==PIX_FMT_YUV422P && mpi->chroma_y_shift==1){
 874         // we have 422p but user wants 420p
 875         mpi->stride[1]*=2;
 876         mpi->stride[2]*=2;
 877     }
 878
 879 #if HAVE_BIGENDIAN
 880     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 881     if (mpi->bpp == 8)
 882         swap_palette(mpi->planes[1]);
 883 #endif
 884 /* to comfirm with newer lavc style */
 885     mpi->qscale =pic->qscale_table;
 886     mpi->qstride=pic->qstride;
 887     mpi->pict_type=pic->pict_type;
 888     mpi->qscale_type= pic->qscale_type;
 889     mpi->fields = MP_IMGFIELD_ORDERED;
 890     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 891     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 892     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 893
 894     return mpi;
 895 }
 896
 897 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 898                                     const enum PixelFormat *fmt){
 899     enum PixelFormat selected_format;
 900     int imgfmt;
 901     sh_video_t *sh = avctx->opaque;
 902     int i;
 903
 904     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 905         imgfmt = pixfmt2imgfmt(fmt[i]);
 906         if(!IMGFMT_IS_XVMC(imgfmt) && !IMGFMT_IS_VDPAU(imgfmt)) continue;
 907         mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] Trying pixfmt=%d.\n", i);
 908         if(init_vo(sh, fmt[i]) >= 0) {
 909             break;
 910         }
 911     }
 912     selected_format = fmt[i];
 913     return selected_format;
 914 }
 915
 916 const struct vd_functions mpcodecs_vd_ffmpeg = {
 917     .info = &info,
 918     .init = init,
 919     .uninit = uninit,
 920     .control = control,
 921     .decode2 = decode
 922 };