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 "talloc.h"
  26 #include "config.h"
  27 #include "mp_msg.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 #include "osdep/numcores.h"
  41 #include "vd_ffmpeg.h"
  42
  43 static const vd_info_t info = {
  44     "FFmpeg's libavcodec codec family",
  45     "ffmpeg",
  46     "A'rpi",
  47     "A'rpi, Michael, Alex",
  48     "native codecs"
  49 };
  50
  51 #include "libavcodec/avcodec.h"
  52
  53 #if AVPALETTE_SIZE > 1024
  54 #error palette too large, adapt libmpcodecs/vf.c:vf_get_image
  55 #endif
  56
  57 int avcodec_initialized=0;
  58
  59 typedef struct {
  60     AVCodecContext *avctx;
  61     AVFrame *pic;
  62     enum PixelFormat pix_fmt;
  63     int do_slices;
  64     int do_dr1;
  65     int vo_initialized;
  66     int best_csp;
  67     int b_age;
  68     int ip_age[2];
  69     int qp_stat[32];
  70     double qp_sum;
  71     double inv_qp_sum;
  72     int ip_count;
  73     int b_count;
  74     AVRational last_sample_aspect_ratio;
  75     int lowres;
  76 } vd_ffmpeg_ctx;
  77
  78 #include "m_option.h"
  79
  80 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  81 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  82 static void draw_slice(struct AVCodecContext *s, const AVFrame *src,
  83                        int offset[4], int y, int type, int height);
  84
  85 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  86                                    const enum PixelFormat *pix_fmt);
  87 static void uninit(struct sh_video *sh);
  88
  89 const m_option_t lavc_decode_opts_conf[]={
  90     OPT_INTRANGE("bug", lavc_param.workaround_bugs, 0, -1, 999999),
  91     OPT_INTRANGE("er", lavc_param.error_resilience, 0, 0, 99),
  92     OPT_FLAG_ON("gray", lavc_param.gray, 0),
  93     OPT_INTRANGE("idct", lavc_param.idct_algo, 0, 0, 99),
  94     OPT_INTRANGE("ec", lavc_param.error_concealment, 0, 0, 99),
  95     OPT_FLAG_ON("vstats", lavc_param.vstats, 0),
  96     OPT_INTRANGE("debug", lavc_param.debug, 0, 0, 9999999),
  97     OPT_INTRANGE("vismv", lavc_param.vismv, 0, 0, 9999999),
  98     OPT_INTRANGE("st", lavc_param.skip_top, 0, 0, 999),
  99     OPT_INTRANGE("sb", lavc_param.skip_bottom, 0, 0, 999),
 100     OPT_FLAG_CONSTANTS("fast", lavc_param.fast, 0, 0, CODEC_FLAG2_FAST),
 101     OPT_STRING("lowres", lavc_param.lowres_str, 0),
 102     OPT_STRING("skiploopfilter", lavc_param.skip_loop_filter_str, 0),
 103     OPT_STRING("skipidct", lavc_param.skip_idct_str, 0),
 104     OPT_STRING("skipframe", lavc_param.skip_frame_str, 0),
 105     OPT_INTRANGE("threads", lavc_param.threads, 0, 0, 16),
 106     OPT_FLAG_CONSTANTS("bitexact", lavc_param.bitexact, 0, 0, CODEC_FLAG_BITEXACT),
 107     OPT_STRING("o", lavc_param.avopt, 0),
 108     {NULL, NULL, 0, 0, 0, 0, NULL}
 109 };
 110
 111 static enum AVDiscard str2AVDiscard(char *str) {
 112     if (!str)                               return AVDISCARD_DEFAULT;
 113     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
 114     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
 115     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
 116     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 117     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 118     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 119     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 120     return AVDISCARD_DEFAULT;
 121 }
 122
 123 // to set/get/query special features/parameters
 124 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 125     vd_ffmpeg_ctx *ctx = sh->context;
 126     AVCodecContext *avctx = ctx->avctx;
 127     switch(cmd){
 128     case VDCTRL_QUERY_FORMAT:
 129     {
 130         int format =(*((int *)arg));
 131         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 132         // possible conversions:
 133         switch(format){
 134         case IMGFMT_YV12:
 135         case IMGFMT_IYUV:
 136         case IMGFMT_I420:
 137             // "converted" using pointer/stride modification
 138             if(ctx->best_csp == IMGFMT_YV12) return CONTROL_TRUE;// u/v swap
 139             if(ctx->best_csp == IMGFMT_422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 140             break;
 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         int delay = avctx->has_b_frames;
 149         return delay + 10;
 150     }
 151     return CONTROL_UNKNOWN;
 152 }
 153
 154 void init_avcodec(void)
 155 {
 156     if (!avcodec_initialized) {
 157         avcodec_init();
 158         avcodec_register_all();
 159         avcodec_initialized = 1;
 160     }
 161 }
 162
 163 // init driver
 164 static int init(sh_video_t *sh){
 165     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 166     AVCodecContext *avctx;
 167     vd_ffmpeg_ctx *ctx;
 168     AVCodec *lavc_codec;
 169     int lowres_w=0;
 170     int do_vis_debug= lavc_param->vismv || (lavc_param->debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 171
 172     init_avcodec();
 173
 174     ctx = sh->context = talloc_zero(NULL, vd_ffmpeg_ctx);
 175
 176     lavc_codec = avcodec_find_decoder_by_name(sh->codec->dll);
 177     if(!lavc_codec){
 178         mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Cannot find codec '%s' in libavcodec...\n", sh->codec->dll);
 179         uninit(sh);
 180         return 0;
 181     }
 182
 183     if(sh->opts->vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 184         ctx->do_slices=1;
 185
 186     if(lavc_codec->capabilities&CODEC_CAP_DR1 && !do_vis_debug
 187        && lavc_codec->id != CODEC_ID_H264
 188        && lavc_codec->id != CODEC_ID_INTERPLAY_VIDEO
 189        && lavc_codec->id != CODEC_ID_ROQ && lavc_codec->id != CODEC_ID_VP8
 190 #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(52, 108, 0)
 191        && lavc_codec->id != CODEC_ID_LAGARITH
 192 #endif
 193        )
 194         ctx->do_dr1=1;
 195     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 196     ctx->ip_count= ctx->b_count= 0;
 197
 198     ctx->pic = avcodec_alloc_frame();
 199     ctx->avctx = avcodec_alloc_context();
 200     avctx = ctx->avctx;
 201     avctx->opaque = sh;
 202     avctx->codec_type = AVMEDIA_TYPE_VIDEO;
 203     avctx->codec_id = lavc_codec->id;
 204
 205     if (lavc_codec->capabilities & CODEC_CAP_HWACCEL   // XvMC
 206         || lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) {
 207         ctx->do_dr1    = true;
 208         ctx->do_slices = true;
 209         lavc_param->threads    = 1;
 210         avctx->get_format      = get_format;
 211         avctx->get_buffer      = get_buffer;
 212         avctx->release_buffer  = release_buffer;
 213         avctx->reget_buffer    = get_buffer;
 214         avctx->draw_horiz_band = draw_slice;
 215         if (lavc_codec->capabilities & CODEC_CAP_HWACCEL)
 216             mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] XVMC-accelerated "
 217                    "MPEG-2.\n");
 218         if (lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
 219             mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] VDPAU hardware "
 220                    "decoding.\n");
 221         avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 222     }
 223
 224     if (lavc_param->threads == 0) {
 225         int threads = default_thread_count();
 226         if (threads < 1) {
 227             mp_msg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] Could not determine "
 228                    "thread count to use, defaulting to 1.\n");
 229             threads = 1;
 230         }
 231         threads = FFMIN(threads, 16);
 232         lavc_param->threads = threads;
 233     }
 234     /* Our get_buffer and draw_horiz_band callbacks are not safe to call
 235      * from other threads. */
 236     if (lavc_param->threads > 1) {
 237         ctx->do_dr1 = false;
 238         ctx->do_slices = false;
 239         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "Asking decoder to use "
 240                 "%d threads if supported.\n", lavc_param->threads);
 241     }
 242
 243     if(ctx->do_dr1){
 244         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 245         avctx->get_buffer= get_buffer;
 246         avctx->release_buffer= release_buffer;
 247         avctx->reget_buffer= get_buffer;
 248     }
 249
 250     avctx->flags|= lavc_param->bitexact;
 251
 252     avctx->coded_width = sh->disp_w;
 253     avctx->coded_height= sh->disp_h;
 254     avctx->workaround_bugs= lavc_param->workaround_bugs;
 255     avctx->error_recognition= lavc_param->error_resilience;
 256     if(lavc_param->gray) avctx->flags|= CODEC_FLAG_GRAY;
 257     avctx->flags2|= lavc_param->fast;
 258     avctx->codec_tag= sh->format;
 259     avctx->stream_codec_tag= sh->video.fccHandler;
 260     avctx->idct_algo= lavc_param->idct_algo;
 261     avctx->error_concealment= lavc_param->error_concealment;
 262     avctx->debug= lavc_param->debug;
 263     if (lavc_param->debug)
 264         av_log_set_level(AV_LOG_DEBUG);
 265     avctx->debug_mv= lavc_param->vismv;
 266     avctx->skip_top   = lavc_param->skip_top;
 267     avctx->skip_bottom= lavc_param->skip_bottom;
 268     if(lavc_param->lowres_str != NULL)
 269     {
 270         sscanf(lavc_param->lowres_str, "%d,%d", &ctx->lowres, &lowres_w);
 271         if(ctx->lowres < 1 || ctx->lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 272             ctx->lowres = 0;
 273         avctx->lowres = ctx->lowres;
 274     }
 275     avctx->skip_loop_filter = str2AVDiscard(lavc_param->skip_loop_filter_str);
 276     avctx->skip_idct = str2AVDiscard(lavc_param->skip_idct_str);
 277     avctx->skip_frame = str2AVDiscard(lavc_param->skip_frame_str);
 278
 279     if(lavc_param->avopt){
 280         if(parse_avopts(avctx, lavc_param->avopt) < 0){
 281             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_param->avopt);
 282             uninit(sh);
 283             return 0;
 284         }
 285     }
 286
 287     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 288     switch (sh->format) {
 289     case mmioFOURCC('S','V','Q','3'):
 290     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 291        in the phony AVI header if demux_lavf is used. The first case is
 292        handled here; the second case falls through to the next section. */
 293         if (sh->ImageDesc) {
 294             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 295             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 296             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 297             break;
 298         }
 299         /* fallthrough */
 300
 301     case mmioFOURCC('A','V','R','n'):
 302     case mmioFOURCC('M','J','P','G'):
 303     /* AVRn stores huffman table in AVI header */
 304     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 305        MJPG fourcc :( */
 306         if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
 307             break;
 308         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 309         avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
 310         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 311         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 312
 313 #if 0
 314         {
 315             int x;
 316             uint8_t *p = avctx->extradata;
 317
 318             for (x=0; x<avctx->extradata_size; x++)
 319                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 320             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 321         }
 322 #endif
 323         break;
 324
 325     case mmioFOURCC('R', 'V', '1', '0'):
 326     case mmioFOURCC('R', 'V', '1', '3'):
 327     case mmioFOURCC('R', 'V', '2', '0'):
 328     case mmioFOURCC('R', 'V', '3', '0'):
 329     case mmioFOURCC('R', 'V', '4', '0'):
 330         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 331             /* only 1 packet per frame & sub_id from fourcc */
 332             avctx->extradata_size= 8;
 333             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 334             ((uint32_t *)avctx->extradata)[0] = 0;
 335             ((uint32_t *)avctx->extradata)[1] =
 336                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 337         } else {
 338             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 339             avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
 340             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 341             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 342         }
 343         avctx->sub_id= AV_RB32(avctx->extradata+4);
 344
 345 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 346         break;
 347
 348     default:
 349         if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
 350             break;
 351         avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
 352         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 353         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 354         break;
 355     }
 356     /* Pass palette to codec */
 357     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 358         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 359         avctx->palctrl->palette_changed = 1;
 360         if (sh->bih->biSize-sizeof(*sh->bih))
 361             /* Palette size in biSize */
 362             memcpy(avctx->palctrl->palette, sh->bih+1,
 363                    FFMIN(sh->bih->biSize-sizeof(*sh->bih), AVPALETTE_SIZE));
 364         else
 365             /* Palette size in biClrUsed */
 366             memcpy(avctx->palctrl->palette, sh->bih+1,
 367                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 368         }
 369
 370     if(sh->bih)
 371         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 372
 373     if(lavc_param->threads > 1) {
 374         avctx->thread_count = lavc_param->threads;
 375         avcodec_thread_init(avctx, lavc_param->threads);
 376     }
 377     /* open it */
 378     if (avcodec_open(avctx, lavc_codec) < 0) {
 379         mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not open codec.\n");
 380         uninit(sh);
 381         return 0;
 382     }
 383     mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
 384     return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
 385 }
 386
 387 // uninit driver
 388 static void uninit(sh_video_t *sh){
 389     vd_ffmpeg_ctx *ctx = sh->context;
 390     AVCodecContext *avctx = ctx->avctx;
 391
 392     if(sh->opts->lavc_param.vstats){
 393         int i;
 394         for(i=1; i<32; i++){
 395             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 396         }
 397         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] Arithmetic mean of QP: %2.4f, Harmonic mean of QP: %2.4f\n",
 398             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 399             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 400             );
 401     }
 402
 403     if (avctx) {
 404         if (avctx->codec && avcodec_close(avctx) < 0)
 405             mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not close codec.\n");
 406
 407         av_freep(&avctx->extradata);
 408         free(avctx->palctrl);
 409         av_freep(&avctx->slice_offset);
 410     }
 411
 412     av_freep(&avctx);
 413     av_freep(&ctx->pic);
 414     talloc_free(ctx);
 415 }
 416
 417 static void draw_slice(struct AVCodecContext *s,
 418                        const AVFrame *src, int offset[4],
 419                        int y, int type, int height){
 420     sh_video_t *sh = s->opaque;
 421     uint8_t *source[MP_MAX_PLANES]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 422     int strides[MP_MAX_PLANES] = {src->linesize[0], src->linesize[1], src->linesize[2]};
 423 #if 0
 424     int start=0, i;
 425     int width= s->width;
 426     vd_ffmpeg_ctx *ctx = sh->context;
 427     int skip_stride= ((width << ctx->lowres)+15)>>4;
 428     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 429     int threshold= s->coded_frame->age;
 430     if(s->pict_type!=B_TYPE){
 431         for(i=0; i*16<width+16; i++){
 432             if(i*16>=width || skip[i]>=threshold){
 433                 if(start==i) start++;
 434                 else{
 435                     uint8_t *src2[3]= {src[0] + start*16,
 436                                      src[1] + start*8,
 437                                      src[2] + start*8};
 438 //printf("%2d-%2d x %d\n", start, i, y);
 439                     mpcodecs_draw_slice (sh, src2, stride, (i-start)*16, height, start*16, y);
 440                     start= i+1;
 441                 }
 442             }
 443         }
 444     }else
 445 #endif
 446     if (height < 0)
 447     {
 448         int i;
 449         height = -height;
 450         y -= height;
 451         for (i = 0; i < MP_MAX_PLANES; i++)
 452         {
 453             strides[i] = -strides[i];
 454             source[i] -= strides[i];
 455         }
 456     }
 457     if (y < sh->disp_h) {
 458         height = FFMIN(height, sh->disp_h-y);
 459         mpcodecs_draw_slice (sh, source, strides, sh->disp_w, height, 0, y);
 460     }
 461 }
 462
 463
 464 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 465     vd_ffmpeg_ctx *ctx = sh->context;
 466     AVCodecContext *avctx = ctx->avctx;
 467     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 468     int width, height;
 469
 470     width = avctx->width;
 471     height = avctx->height;
 472
 473     // HACK!
 474     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 475     // use dimensions from BIH to avoid black borders at the right and bottom.
 476     if (sh->bih && sh->ImageDesc) {
 477         width = sh->bih->biWidth >> ctx->lowres;
 478         height = sh->bih->biHeight >> ctx->lowres;
 479     }
 480
 481      // it is possible another vo buffers to be used after vo config()
 482      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 483     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 484         width != sh->disp_w  ||
 485         height != sh->disp_h ||
 486         pix_fmt != ctx->pix_fmt ||
 487         !ctx->vo_initialized)
 488     {
 489         ctx->vo_initialized = 0;
 490         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 491
 492         // Do not overwrite s->aspect on the first call, so that a container
 493         // aspect if available is preferred.
 494         // But set it even if the sample aspect did not change, since a
 495         // resolution change can cause an aspect change even if the
 496         // _sample_ aspect is unchanged.
 497         if (sh->aspect == 0 || ctx->last_sample_aspect_ratio.den)
 498             sh->aspect = aspect;
 499         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 500         sh->disp_w = width;
 501         sh->disp_h = height;
 502         ctx->pix_fmt = pix_fmt;
 503         ctx->best_csp = pixfmt2imgfmt(pix_fmt);
 504         if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, ctx->best_csp))
 505             return -1;
 506         ctx->vo_initialized = 1;
 507     }
 508     return 0;
 509 }
 510
 511 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 512     sh_video_t *sh = avctx->opaque;
 513     vd_ffmpeg_ctx *ctx = sh->context;
 514     mp_image_t *mpi=NULL;
 515     int flags= MP_IMGFLAG_ACCEPT_ALIGNED_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 516     int type= MP_IMGTYPE_IPB;
 517     int width= avctx->width;
 518     int height= avctx->height;
 519     // special case to handle reget_buffer without buffer hints
 520     if (pic->opaque && pic->data[0] && !pic->buffer_hints)
 521         return 0;
 522     avcodec_align_dimensions(avctx, &width, &height);
 523 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 524
 525     if (pic->buffer_hints) {
 526         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 527         type = MP_IMGTYPE_TEMP;
 528         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 529             flags |= MP_IMGFLAG_READABLE;
 530         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 531             type = MP_IMGTYPE_STATIC;
 532             flags |= MP_IMGFLAG_PRESERVE;
 533         }
 534         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 535             type = MP_IMGTYPE_STATIC;
 536             flags |= MP_IMGFLAG_PRESERVE;
 537         }
 538         flags |= ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0;
 539         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 540     } else {
 541         if(!pic->reference){
 542             ctx->b_count++;
 543             flags |= ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK:0;
 544         }else{
 545             ctx->ip_count++;
 546             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 547                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 548         }
 549     }
 550
 551     if(init_vo(sh, avctx->pix_fmt) < 0){
 552         avctx->release_buffer= avcodec_default_release_buffer;
 553         avctx->get_buffer= avcodec_default_get_buffer;
 554         avctx->reget_buffer= avcodec_default_reget_buffer;
 555         if (pic->data[0])
 556             release_buffer(avctx, pic);
 557         return avctx->get_buffer(avctx, pic);
 558     }
 559
 560     if (IMGFMT_IS_HWACCEL(ctx->best_csp)) {
 561         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 562     } else
 563     if (!pic->buffer_hints) {
 564         if(ctx->b_count>1 || ctx->ip_count>2){
 565             mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] DRI failure.\n");
 566
 567             ctx->do_dr1=0; //FIXME
 568             avctx->get_buffer= avcodec_default_get_buffer;
 569             avctx->reget_buffer= avcodec_default_reget_buffer;
 570             if (pic->data[0])
 571                 release_buffer(avctx, pic);
 572             return avctx->get_buffer(avctx, pic);
 573         }
 574
 575         if(avctx->has_b_frames || ctx->b_count){
 576             type= MP_IMGTYPE_IPB;
 577         }else{
 578             type= MP_IMGTYPE_IP;
 579         }
 580         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 581     }
 582
 583     if (ctx->best_csp == IMGFMT_RGB8 || ctx->best_csp == IMGFMT_BGR8)
 584         flags |= MP_IMGFLAG_RGB_PALETTE;
 585     mpi= mpcodecs_get_image(sh, type, flags, width, height);
 586     if (!mpi) return -1;
 587
 588     // ok, let's see what did we get:
 589     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 590        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 591         // nice, filter/vo likes draw_callback :)
 592         avctx->draw_horiz_band= draw_slice;
 593     } else
 594         avctx->draw_horiz_band= NULL;
 595     if(IMGFMT_IS_HWACCEL(mpi->imgfmt)) {
 596         avctx->draw_horiz_band= draw_slice;
 597     }
 598
 599     pic->data[0]= mpi->planes[0];
 600     pic->data[1]= mpi->planes[1];
 601     pic->data[2]= mpi->planes[2];
 602     pic->data[3]= mpi->planes[3];
 603
 604 #if 0
 605     assert(mpi->width >= ((width +align)&(~align)));
 606     assert(mpi->height >= ((height+align)&(~align)));
 607     assert(mpi->stride[0] >= mpi->width);
 608     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 609         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 610         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 611
 612         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 613         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 614         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 615         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 616         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 617         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 618     }
 619 #endif
 620
 621     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 622      * lavc will check that and die with an error message, if its not true
 623      */
 624     pic->linesize[0]= mpi->stride[0];
 625     pic->linesize[1]= mpi->stride[1];
 626     pic->linesize[2]= mpi->stride[2];
 627     pic->linesize[3]= mpi->stride[3];
 628
 629     pic->opaque = mpi;
 630 //printf("%X\n", (int)mpi->planes[0]);
 631 #if 0
 632 if(mpi->flags&MP_IMGFLAG_DIRECT)
 633     printf("D");
 634 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 635     printf("S");
 636 else
 637     printf(".");
 638 #endif
 639     if(pic->reference){
 640         pic->age= ctx->ip_age[0];
 641
 642         ctx->ip_age[0]= ctx->ip_age[1]+1;
 643         ctx->ip_age[1]= 1;
 644         ctx->b_age++;
 645     }else{
 646         pic->age= ctx->b_age;
 647
 648         ctx->ip_age[0]++;
 649         ctx->ip_age[1]++;
 650         ctx->b_age=1;
 651     }
 652     pic->type= FF_BUFFER_TYPE_USER;
 653
 654     /* The libavcodec reordered_opaque functionality is implemented by
 655      * a similar copy in avcodec_default_get_buffer() and without a
 656      * workaround like this it'd stop working when a custom buffer
 657      * callback is used.
 658      */
 659     pic->reordered_opaque = avctx->reordered_opaque;
 660     return 0;
 661 }
 662
 663 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 664     mp_image_t *mpi= pic->opaque;
 665     sh_video_t *sh = avctx->opaque;
 666     vd_ffmpeg_ctx *ctx = sh->context;
 667     int i;
 668
 669 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 670
 671     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 672         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 673             ctx->ip_count--;
 674         else
 675             ctx->b_count--;
 676     }
 677
 678     if (mpi) {
 679         // Palette support: free palette buffer allocated in get_buffer
 680         if (mpi->bpp == 8)
 681             av_freep(&mpi->planes[1]);
 682         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 683         mpi->usage_count--;
 684     }
 685
 686     if(pic->type!=FF_BUFFER_TYPE_USER){
 687         avcodec_default_release_buffer(avctx, pic);
 688         return;
 689     }
 690
 691     for(i=0; i<4; i++){
 692         pic->data[i]= NULL;
 693     }
 694 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 695 }
 696
 697 // copypaste from demux_real.c - it should match to get it working!
 698 //FIXME put into some header
 699 typedef struct dp_hdr_s {
 700     uint32_t chunks;        // number of chunks
 701     uint32_t timestamp; // timestamp from packet header
 702     uint32_t len;        // length of actual data
 703     uint32_t chunktab;        // offset to chunk offset array
 704 } dp_hdr_t;
 705
 706 static av_unused void swap_palette(void *pal)
 707 {
 708     int i;
 709     uint32_t *p = pal;
 710     for (i = 0; i < AVPALETTE_COUNT; i++)
 711         p[i] = le2me_32(p[i]);
 712 }
 713
 714 // decode a frame
 715 static struct mp_image *decode(struct sh_video *sh, void *data, int len,
 716                                int flags, double *reordered_pts)
 717 {
 718     int got_picture=0;
 719     int ret;
 720     vd_ffmpeg_ctx *ctx = sh->context;
 721     AVFrame *pic= ctx->pic;
 722     AVCodecContext *avctx = ctx->avctx;
 723     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 724     mp_image_t *mpi=NULL;
 725     int dr1= ctx->do_dr1;
 726     AVPacket pkt;
 727
 728     if(len<=0) return NULL; // skipped frame
 729
 730 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 731     if (!dr1)
 732     avctx->draw_horiz_band=NULL;
 733     if(ctx->vo_initialized && !(flags&3) && !dr1){
 734         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 735             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 736             sh->disp_w, sh->disp_h);
 737         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 738             // vd core likes slices!
 739             avctx->draw_horiz_band=draw_slice;
 740         }
 741     }
 742
 743     if (flags & 2)
 744         avctx->skip_frame = AVDISCARD_ALL;
 745     else if (flags & 1)
 746         avctx->skip_frame = AVDISCARD_NONREF;
 747     else
 748         avctx->skip_frame = 0;
 749
 750     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 751            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 752     av_init_packet(&pkt);
 753     pkt.data = data;
 754     pkt.size = len;
 755     // HACK: make PNGs decode normally instead of as CorePNG delta frames
 756     pkt.flags = AV_PKT_FLAG_KEY;
 757     // The avcodec opaque field stupidly supports only int64_t type
 758     union pts { int64_t i; double d; };
 759     avctx->reordered_opaque = (union pts){.d = *reordered_pts}.i;
 760     ret = avcodec_decode_video2(avctx, pic, &got_picture, &pkt);
 761     *reordered_pts = (union pts){.i = pic->reordered_opaque}.d;
 762
 763     dr1= ctx->do_dr1;
 764     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 765 //printf("repeat: %d\n", pic->repeat_pict);
 766 //-- vstats generation
 767     while(lavc_param->vstats){ // always one time loop
 768         static FILE *fvstats=NULL;
 769         char filename[20];
 770         static long long int all_len=0;
 771         static int frame_number=0;
 772         static double all_frametime=0.0;
 773         AVFrame *pic= avctx->coded_frame;
 774         double quality=0.0;
 775
 776         if(!fvstats) {
 777             time_t today2;
 778             struct tm *today;
 779             today2 = time(NULL);
 780             today = localtime(&today2);
 781             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 782                 today->tm_min, today->tm_sec);
 783             fvstats = fopen(filename, "w");
 784             if(!fvstats) {
 785                 perror("fopen");
 786                 lavc_param->vstats=0; // disable block
 787                 break;
 788                 /*exit(1);*/
 789             }
 790         }
 791
 792         // average MB quantizer
 793         {
 794             int x, y;
 795             int w = ((avctx->width  << ctx->lowres)+15) >> 4;
 796             int h = ((avctx->height << ctx->lowres)+15) >> 4;
 797             int8_t *q = pic->qscale_table;
 798             for(y = 0; y < h; y++) {
 799                 for(x = 0; x < w; x++)
 800                     quality += (double)*(q+x);
 801                 q += pic->qstride;
 802             }
 803             quality /= w * h;
 804         }
 805
 806         all_len+=len;
 807         all_frametime+=sh->frametime;
 808         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 809             ++frame_number, quality, len, (double)all_len/1024);
 810         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 811            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 812            (double)(all_len*8)/all_frametime/1000.0);
 813         switch(pic->pict_type){
 814         case FF_I_TYPE:
 815             fprintf(fvstats, "type= I\n");
 816             break;
 817         case FF_P_TYPE:
 818             fprintf(fvstats, "type= P\n");
 819             break;
 820         case FF_S_TYPE:
 821             fprintf(fvstats, "type= S\n");
 822             break;
 823         case FF_B_TYPE:
 824             fprintf(fvstats, "type= B\n");
 825             break;
 826         default:
 827             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 828             break;
 829         }
 830
 831         ctx->qp_stat[(int)(quality+0.5)]++;
 832         ctx->qp_sum += quality;
 833         ctx->inv_qp_sum += 1.0/(double)quality;
 834
 835         break;
 836     }
 837 //--
 838
 839     if(!got_picture) return NULL;        // skipped image
 840
 841     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 842
 843     if(dr1 && pic->opaque){
 844         mpi= (mp_image_t *)pic->opaque;
 845     }
 846
 847     if(!mpi)
 848     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 849         avctx->width, avctx->height);
 850     if(!mpi){        // temporary!
 851         mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] Couldn't allocate image for codec.\n");
 852         return NULL;
 853     }
 854
 855     if(!dr1){
 856         mpi->planes[0]=pic->data[0];
 857         mpi->planes[1]=pic->data[1];
 858         mpi->planes[2]=pic->data[2];
 859         mpi->planes[3]=pic->data[3];
 860         mpi->stride[0]=pic->linesize[0];
 861         mpi->stride[1]=pic->linesize[1];
 862         mpi->stride[2]=pic->linesize[2];
 863         mpi->stride[3]=pic->linesize[3];
 864     }
 865
 866     if (!mpi->planes[0])
 867         return NULL;
 868
 869     if(ctx->best_csp == IMGFMT_422P && mpi->chroma_y_shift==1){
 870         // we have 422p but user wants 420p
 871         mpi->stride[1]*=2;
 872         mpi->stride[2]*=2;
 873     }
 874
 875 #if HAVE_BIGENDIAN
 876     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 877     if (mpi->bpp == 8)
 878         swap_palette(mpi->planes[1]);
 879 #endif
 880 /* to comfirm with newer lavc style */
 881     mpi->qscale =pic->qscale_table;
 882     mpi->qstride=pic->qstride;
 883     mpi->pict_type=pic->pict_type;
 884     mpi->qscale_type= pic->qscale_type;
 885     mpi->fields = MP_IMGFIELD_ORDERED;
 886     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 887     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 888     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 889
 890     return mpi;
 891 }
 892
 893 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 894                                     const enum PixelFormat *fmt){
 895     enum PixelFormat selected_format;
 896     int imgfmt;
 897     sh_video_t *sh = avctx->opaque;
 898     int i;
 899
 900     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 901         imgfmt = pixfmt2imgfmt(fmt[i]);
 902         if(!IMGFMT_IS_HWACCEL(imgfmt)) continue;
 903         mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] Trying pixfmt=%d.\n", i);
 904         if(init_vo(sh, fmt[i]) >= 0) {
 905             break;
 906         }
 907     }
 908     selected_format = fmt[i];
 909     return selected_format;
 910 }
 911
 912 const struct vd_functions mpcodecs_vd_ffmpeg = {
 913     .info = &info,
 914     .init = init,
 915     .uninit = uninit,
 916     .control = control,
 917     .decode2 = decode
 918 };