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 #if CONFIG_XVMC
  58 #include "libavcodec/xvmc.h"
  59 #endif
  60
  61 int avcodec_initialized=0;
  62
  63 typedef struct {
  64     AVCodecContext *avctx;
  65     AVFrame *pic;
  66     enum PixelFormat pix_fmt;
  67     int do_slices;
  68     int do_dr1;
  69     int vo_initialized;
  70     int best_csp;
  71     int b_age;
  72     int ip_age[2];
  73     int qp_stat[32];
  74     double qp_sum;
  75     double inv_qp_sum;
  76     int ip_count;
  77     int b_count;
  78     AVRational last_sample_aspect_ratio;
  79     int lowres;
  80 } vd_ffmpeg_ctx;
  81
  82 #include "m_option.h"
  83
  84 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  85 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  86 static void draw_slice(struct AVCodecContext *s, const AVFrame *src,
  87                        int offset[4], int y, int type, int height);
  88
  89 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  90                                    const enum PixelFormat *pix_fmt);
  91 static void uninit(struct sh_video *sh);
  92
  93 const m_option_t lavc_decode_opts_conf[]={
  94     OPT_INTRANGE("bug", lavc_param.workaround_bugs, 0, -1, 999999),
  95     OPT_INTRANGE("er", lavc_param.error_resilience, 0, 0, 99),
  96     OPT_FLAG_ON("gray", lavc_param.gray, 0),
  97     OPT_INTRANGE("idct", lavc_param.idct_algo, 0, 0, 99),
  98     OPT_INTRANGE("ec", lavc_param.error_concealment, 0, 0, 99),
  99     OPT_FLAG_ON("vstats", lavc_param.vstats, 0),
 100     OPT_INTRANGE("debug", lavc_param.debug, 0, 0, 9999999),
 101     OPT_INTRANGE("vismv", lavc_param.vismv, 0, 0, 9999999),
 102     OPT_INTRANGE("st", lavc_param.skip_top, 0, 0, 999),
 103     OPT_INTRANGE("sb", lavc_param.skip_bottom, 0, 0, 999),
 104     OPT_FLAG_CONSTANTS("fast", lavc_param.fast, 0, 0, CODEC_FLAG2_FAST),
 105     OPT_STRING("lowres", lavc_param.lowres_str, 0),
 106     OPT_STRING("skiploopfilter", lavc_param.skip_loop_filter_str, 0),
 107     OPT_STRING("skipidct", lavc_param.skip_idct_str, 0),
 108     OPT_STRING("skipframe", lavc_param.skip_frame_str, 0),
 109     OPT_INTRANGE("threads", lavc_param.threads, 0, 0, 16),
 110     OPT_FLAG_CONSTANTS("bitexact", lavc_param.bitexact, 0, 0, CODEC_FLAG_BITEXACT),
 111     OPT_STRING("o", lavc_param.avopt, 0),
 112     {NULL, NULL, 0, 0, 0, 0, NULL}
 113 };
 114
 115 static enum AVDiscard str2AVDiscard(char *str) {
 116     if (!str)                               return AVDISCARD_DEFAULT;
 117     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
 118     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
 119     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
 120     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 121     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 122     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 123     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 124     return AVDISCARD_DEFAULT;
 125 }
 126
 127 // to set/get/query special features/parameters
 128 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 129     vd_ffmpeg_ctx *ctx = sh->context;
 130     AVCodecContext *avctx = ctx->avctx;
 131     switch(cmd){
 132     case VDCTRL_QUERY_FORMAT:
 133     {
 134         int format =(*((int *)arg));
 135         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 136         // possible conversions:
 137         switch(format){
 138         case IMGFMT_YV12:
 139         case IMGFMT_IYUV:
 140         case IMGFMT_I420:
 141             // "converted" using pointer/stride modification
 142             if(ctx->best_csp == IMGFMT_YV12) return CONTROL_TRUE;// u/v swap
 143             if(ctx->best_csp == IMGFMT_422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 144             break;
 145 #if CONFIG_XVMC
 146         case IMGFMT_XVMC_IDCT_MPEG2:
 147         case IMGFMT_XVMC_MOCO_MPEG2:
 148             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 149 #endif
 150         }
 151         return CONTROL_FALSE;
 152     }
 153     case VDCTRL_RESYNC_STREAM:
 154         avcodec_flush_buffers(avctx);
 155         return CONTROL_TRUE;
 156     case VDCTRL_QUERY_UNSEEN_FRAMES:;
 157         int delay = avctx->has_b_frames;
 158         return delay + 10;
 159     }
 160     return CONTROL_UNKNOWN;
 161 }
 162
 163 void init_avcodec(void)
 164 {
 165     if (!avcodec_initialized) {
 166         avcodec_init();
 167         avcodec_register_all();
 168         avcodec_initialized = 1;
 169     }
 170 }
 171
 172 // init driver
 173 static int init(sh_video_t *sh){
 174     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 175     AVCodecContext *avctx;
 176     vd_ffmpeg_ctx *ctx;
 177     AVCodec *lavc_codec;
 178     int lowres_w=0;
 179     int do_vis_debug= lavc_param->vismv || (lavc_param->debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 180
 181     init_avcodec();
 182
 183     ctx = sh->context = talloc_zero(NULL, vd_ffmpeg_ctx);
 184
 185     lavc_codec = 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 && lavc_codec->id != CODEC_ID_VP8)
 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 (lavc_codec->capabilities & CODEC_CAP_HWACCEL   // XvMC
 208         || lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) {
 209         ctx->do_dr1    = true;
 210         ctx->do_slices = true;
 211         lavc_param->threads    = 1;
 212         avctx->get_format      = get_format;
 213         avctx->get_buffer      = get_buffer;
 214         avctx->release_buffer  = release_buffer;
 215         avctx->reget_buffer    = get_buffer;
 216         avctx->draw_horiz_band = draw_slice;
 217         if (lavc_codec->capabilities & CODEC_CAP_HWACCEL)
 218             mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] XVMC-accelerated "
 219                    "MPEG-2.\n");
 220         if (lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
 221             mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] VDPAU hardware "
 222                    "decoding.\n");
 223         avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 224     }
 225
 226     if (lavc_param->threads == 0) {
 227         int threads = default_thread_count();
 228         if (threads < 1) {
 229             mp_msg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] Could not determine "
 230                    "thread count to use, defaulting to 1.\n");
 231             threads = 1;
 232         }
 233         threads = FFMIN(threads, 16);
 234         lavc_param->threads = threads;
 235     }
 236     /* Our get_buffer and draw_horiz_band callbacks are not safe to call
 237      * from other threads. */
 238     if (lavc_param->threads > 1) {
 239         ctx->do_dr1 = false;
 240         ctx->do_slices = false;
 241         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "Asking decoder to use "
 242                 "%d threads if supported.\n", lavc_param->threads);
 243     }
 244
 245     if(ctx->do_dr1){
 246         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 247         avctx->get_buffer= get_buffer;
 248         avctx->release_buffer= release_buffer;
 249         avctx->reget_buffer= get_buffer;
 250     }
 251
 252     avctx->flags|= lavc_param->bitexact;
 253
 254     avctx->coded_width = sh->disp_w;
 255     avctx->coded_height= sh->disp_h;
 256     avctx->workaround_bugs= lavc_param->workaround_bugs;
 257     avctx->error_recognition= lavc_param->error_resilience;
 258     if(lavc_param->gray) avctx->flags|= CODEC_FLAG_GRAY;
 259     avctx->flags2|= lavc_param->fast;
 260     avctx->codec_tag= sh->format;
 261     avctx->stream_codec_tag= sh->video.fccHandler;
 262     avctx->idct_algo= lavc_param->idct_algo;
 263     avctx->error_concealment= lavc_param->error_concealment;
 264     avctx->debug= lavc_param->debug;
 265     if (lavc_param->debug)
 266         av_log_set_level(AV_LOG_DEBUG);
 267     avctx->debug_mv= lavc_param->vismv;
 268     avctx->skip_top   = lavc_param->skip_top;
 269     avctx->skip_bottom= lavc_param->skip_bottom;
 270     if(lavc_param->lowres_str != NULL)
 271     {
 272         sscanf(lavc_param->lowres_str, "%d,%d", &ctx->lowres, &lowres_w);
 273         if(ctx->lowres < 1 || ctx->lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 274             ctx->lowres = 0;
 275         avctx->lowres = ctx->lowres;
 276     }
 277     avctx->skip_loop_filter = str2AVDiscard(lavc_param->skip_loop_filter_str);
 278     avctx->skip_idct = str2AVDiscard(lavc_param->skip_idct_str);
 279     avctx->skip_frame = str2AVDiscard(lavc_param->skip_frame_str);
 280
 281     if(lavc_param->avopt){
 282         if(parse_avopts(avctx, lavc_param->avopt) < 0){
 283             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_param->avopt);
 284             uninit(sh);
 285             return 0;
 286         }
 287     }
 288
 289     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 290     switch (sh->format) {
 291     case mmioFOURCC('S','V','Q','3'):
 292     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 293        in the phony AVI header if demux_lavf is used. The first case is
 294        handled here; the second case falls through to the next section. */
 295         if (sh->ImageDesc) {
 296             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 297             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 298             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 299             break;
 300         }
 301         /* fallthrough */
 302
 303     case mmioFOURCC('A','V','R','n'):
 304     case mmioFOURCC('M','J','P','G'):
 305     /* AVRn stores huffman table in AVI header */
 306     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 307        MJPG fourcc :( */
 308         if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
 309             break;
 310         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 311         avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
 312         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 313         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 314
 315 #if 0
 316         {
 317             int x;
 318             uint8_t *p = avctx->extradata;
 319
 320             for (x=0; x<avctx->extradata_size; x++)
 321                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 322             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 323         }
 324 #endif
 325         break;
 326
 327     case mmioFOURCC('R', 'V', '1', '0'):
 328     case mmioFOURCC('R', 'V', '1', '3'):
 329     case mmioFOURCC('R', 'V', '2', '0'):
 330     case mmioFOURCC('R', 'V', '3', '0'):
 331     case mmioFOURCC('R', 'V', '4', '0'):
 332         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 333             /* only 1 packet per frame & sub_id from fourcc */
 334             avctx->extradata_size= 8;
 335             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 336             ((uint32_t *)avctx->extradata)[0] = 0;
 337             ((uint32_t *)avctx->extradata)[1] =
 338                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 339         } else {
 340             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 341             avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
 342             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 343             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 344         }
 345         avctx->sub_id= AV_RB32(avctx->extradata+4);
 346
 347 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 348         break;
 349
 350     default:
 351         if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
 352             break;
 353         avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
 354         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 355         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 356         break;
 357     }
 358     /* Pass palette to codec */
 359     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 360         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 361         avctx->palctrl->palette_changed = 1;
 362         if (sh->bih->biSize-sizeof(*sh->bih))
 363             /* Palette size in biSize */
 364             memcpy(avctx->palctrl->palette, sh->bih+1,
 365                    FFMIN(sh->bih->biSize-sizeof(*sh->bih), AVPALETTE_SIZE));
 366         else
 367             /* Palette size in biClrUsed */
 368             memcpy(avctx->palctrl->palette, sh->bih+1,
 369                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 370         }
 371
 372     if(sh->bih)
 373         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 374
 375     if(lavc_param->threads > 1)
 376         avcodec_thread_init(avctx, lavc_param->threads);
 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_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 516     int type= MP_IMGTYPE_IPB;
 517     int width= avctx->width;
 518     int height= avctx->height;
 519     avcodec_align_dimensions(avctx, &width, &height);
 520 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 521
 522     if (pic->buffer_hints) {
 523         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 524         type = MP_IMGTYPE_TEMP;
 525         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 526             flags |= MP_IMGFLAG_READABLE;
 527         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 528             type = MP_IMGTYPE_STATIC;
 529             flags |= MP_IMGFLAG_PRESERVE;
 530         }
 531         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 532             type = MP_IMGTYPE_STATIC;
 533             flags |= MP_IMGFLAG_PRESERVE;
 534         }
 535         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 536                  MP_IMGFLAG_DRAW_CALLBACK:0;
 537         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 538     } else {
 539         if(!pic->reference){
 540             ctx->b_count++;
 541             flags|=(!avctx->hurry_up && ctx->do_slices) ?
 542                      MP_IMGFLAG_DRAW_CALLBACK:0;
 543         }else{
 544             ctx->ip_count++;
 545             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 546                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 547         }
 548     }
 549
 550     if(init_vo(sh, avctx->pix_fmt) < 0){
 551         avctx->release_buffer= avcodec_default_release_buffer;
 552         avctx->get_buffer= avcodec_default_get_buffer;
 553         return avctx->get_buffer(avctx, pic);
 554     }
 555
 556     if (IMGFMT_IS_HWACCEL(ctx->best_csp)) {
 557         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 558     } else
 559     if (!pic->buffer_hints) {
 560         if(ctx->b_count>1 || ctx->ip_count>2){
 561             mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] DRI failure.\n");
 562
 563             ctx->do_dr1=0; //FIXME
 564             avctx->get_buffer= avcodec_default_get_buffer;
 565             return avctx->get_buffer(avctx, pic);
 566         }
 567
 568         if(avctx->has_b_frames || ctx->b_count){
 569             type= MP_IMGTYPE_IPB;
 570         }else{
 571             type= MP_IMGTYPE_IP;
 572         }
 573         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 574     }
 575
 576     if (ctx->best_csp == IMGFMT_RGB8 || ctx->best_csp == IMGFMT_BGR8)
 577         flags |= MP_IMGFLAG_RGB_PALETTE;
 578     mpi= mpcodecs_get_image(sh, type, flags, width, height);
 579     if (!mpi) return -1;
 580
 581     // ok, let's see what did we get:
 582     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 583        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 584         // nice, filter/vo likes draw_callback :)
 585         avctx->draw_horiz_band= draw_slice;
 586     } else
 587         avctx->draw_horiz_band= NULL;
 588     if(IMGFMT_IS_HWACCEL(mpi->imgfmt)) {
 589         avctx->draw_horiz_band= draw_slice;
 590     }
 591 #if CONFIG_XVMC
 592     if(IMGFMT_IS_XVMC(mpi->imgfmt)) {
 593         struct xvmc_pix_fmt *render = mpi->priv; //same as data[2]
 594         if(!avctx->xvmc_acceleration) {
 595             mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] The mc_get_buffer should work only with XVMC acceleration!!");
 596             assert(0);
 597             exit(1);
 598 //            return -1;//!!fixme check error conditions in ffmpeg
 599         }
 600         if(!(mpi->flags & MP_IMGFLAG_DIRECT)) {
 601             mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "[VD_FFMPEG] Only buffers allocated by vo_xvmc allowed.\n");
 602             assert(0);
 603             exit(1);
 604 //            return -1;//!!fixme check error conditions in ffmpeg
 605         }
 606         if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 607             mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::get_buffer (xvmc render=%p)\n", render);
 608         assert(render != 0);
 609         assert(render->xvmc_id == AV_XVMC_ID);
 610         render->state |= AV_XVMC_STATE_PREDICTION;
 611     }
 612 #endif
 613
 614     pic->data[0]= mpi->planes[0];
 615     pic->data[1]= mpi->planes[1];
 616     pic->data[2]= mpi->planes[2];
 617     pic->data[3]= mpi->planes[3];
 618
 619 #if 0
 620     assert(mpi->width >= ((width +align)&(~align)));
 621     assert(mpi->height >= ((height+align)&(~align)));
 622     assert(mpi->stride[0] >= mpi->width);
 623     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 624         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 625         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 626
 627         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 628         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 629         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 630         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 631         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 632         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 633     }
 634 #endif
 635
 636     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 637      * lavc will check that and die with an error message, if its not true
 638      */
 639     pic->linesize[0]= mpi->stride[0];
 640     pic->linesize[1]= mpi->stride[1];
 641     pic->linesize[2]= mpi->stride[2];
 642     pic->linesize[3]= mpi->stride[3];
 643
 644     pic->opaque = mpi;
 645 //printf("%X\n", (int)mpi->planes[0]);
 646 #if 0
 647 if(mpi->flags&MP_IMGFLAG_DIRECT)
 648     printf("D");
 649 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 650     printf("S");
 651 else
 652     printf(".");
 653 #endif
 654     if(pic->reference){
 655         pic->age= ctx->ip_age[0];
 656
 657         ctx->ip_age[0]= ctx->ip_age[1]+1;
 658         ctx->ip_age[1]= 1;
 659         ctx->b_age++;
 660     }else{
 661         pic->age= ctx->b_age;
 662
 663         ctx->ip_age[0]++;
 664         ctx->ip_age[1]++;
 665         ctx->b_age=1;
 666     }
 667     pic->type= FF_BUFFER_TYPE_USER;
 668
 669     /* The libavcodec reordered_opaque functionality is implemented by
 670      * a similar copy in avcodec_default_get_buffer() and without a
 671      * workaround like this it'd stop working when a custom buffer
 672      * callback is used.
 673      */
 674     pic->reordered_opaque = avctx->reordered_opaque;
 675     return 0;
 676 }
 677
 678 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 679     mp_image_t *mpi= pic->opaque;
 680     sh_video_t *sh = avctx->opaque;
 681     vd_ffmpeg_ctx *ctx = sh->context;
 682     int i;
 683
 684 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 685
 686     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 687         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 688             ctx->ip_count--;
 689         else
 690             ctx->b_count--;
 691     }
 692
 693     if (mpi) {
 694         // Palette support: free palette buffer allocated in get_buffer
 695         if (mpi->bpp == 8)
 696             av_freep(&mpi->planes[1]);
 697 #if CONFIG_XVMC
 698         if (IMGFMT_IS_XVMC(mpi->imgfmt)) {
 699             struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)pic->data[2]; //same as mpi->priv
 700             if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 701                 mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::release_buffer (xvmc render=%p)\n", render);
 702             assert(render!=NULL);
 703             assert(render->xvmc_id == AV_XVMC_ID);
 704             render->state&=~AV_XVMC_STATE_PREDICTION;
 705         }
 706 #endif
 707         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 708         mpi->usage_count--;
 709     }
 710
 711     if(pic->type!=FF_BUFFER_TYPE_USER){
 712         avcodec_default_release_buffer(avctx, pic);
 713         return;
 714     }
 715
 716     for(i=0; i<4; i++){
 717         pic->data[i]= NULL;
 718     }
 719 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 720 }
 721
 722 // copypaste from demux_real.c - it should match to get it working!
 723 //FIXME put into some header
 724 typedef struct dp_hdr_s {
 725     uint32_t chunks;        // number of chunks
 726     uint32_t timestamp; // timestamp from packet header
 727     uint32_t len;        // length of actual data
 728     uint32_t chunktab;        // offset to chunk offset array
 729 } dp_hdr_t;
 730
 731 static av_unused void swap_palette(void *pal)
 732 {
 733     int i;
 734     uint32_t *p = pal;
 735     for (i = 0; i < AVPALETTE_COUNT; i++)
 736         p[i] = le2me_32(p[i]);
 737 }
 738
 739 // decode a frame
 740 static struct mp_image *decode(struct sh_video *sh, void *data, int len,
 741                                int flags, double *reordered_pts)
 742 {
 743     int got_picture=0;
 744     int ret;
 745     vd_ffmpeg_ctx *ctx = sh->context;
 746     AVFrame *pic= ctx->pic;
 747     AVCodecContext *avctx = ctx->avctx;
 748     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 749     mp_image_t *mpi=NULL;
 750     int dr1= ctx->do_dr1;
 751     AVPacket pkt;
 752
 753     if(len<=0) return NULL; // skipped frame
 754
 755 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 756     if (!dr1)
 757     avctx->draw_horiz_band=NULL;
 758     if(ctx->vo_initialized && !(flags&3) && !dr1){
 759         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 760             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 761             sh->disp_w, sh->disp_h);
 762         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 763             // vd core likes slices!
 764             avctx->draw_horiz_band=draw_slice;
 765         }
 766     }
 767
 768     if (flags & 2)
 769         avctx->skip_frame = AVDISCARD_ALL;
 770     else if (flags & 1)
 771         avctx->skip_frame = AVDISCARD_NONREF;
 772     else
 773         avctx->skip_frame = 0;
 774
 775     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 776            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 777     av_init_packet(&pkt);
 778     pkt.data = data;
 779     pkt.size = len;
 780     // HACK: make PNGs decode normally instead of as CorePNG delta frames
 781     pkt.flags = PKT_FLAG_KEY;
 782     // The avcodec opaque field stupidly supports only int64_t type
 783     *(double *)&avctx->reordered_opaque = *reordered_pts;
 784     ret = avcodec_decode_video2(avctx, pic, &got_picture, &pkt);
 785     *reordered_pts = *(double *)&pic->reordered_opaque;
 786
 787     dr1= ctx->do_dr1;
 788     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 789 //printf("repeat: %d\n", pic->repeat_pict);
 790 //-- vstats generation
 791     while(lavc_param->vstats){ // always one time loop
 792         static FILE *fvstats=NULL;
 793         char filename[20];
 794         static long long int all_len=0;
 795         static int frame_number=0;
 796         static double all_frametime=0.0;
 797         AVFrame *pic= avctx->coded_frame;
 798         double quality=0.0;
 799
 800         if(!fvstats) {
 801             time_t today2;
 802             struct tm *today;
 803             today2 = time(NULL);
 804             today = localtime(&today2);
 805             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 806                 today->tm_min, today->tm_sec);
 807             fvstats = fopen(filename, "w");
 808             if(!fvstats) {
 809                 perror("fopen");
 810                 lavc_param->vstats=0; // disable block
 811                 break;
 812                 /*exit(1);*/
 813             }
 814         }
 815
 816         // average MB quantizer
 817         {
 818             int x, y;
 819             int w = ((avctx->width  << ctx->lowres)+15) >> 4;
 820             int h = ((avctx->height << ctx->lowres)+15) >> 4;
 821             int8_t *q = pic->qscale_table;
 822             for(y = 0; y < h; y++) {
 823                 for(x = 0; x < w; x++)
 824                     quality += (double)*(q+x);
 825                 q += pic->qstride;
 826             }
 827             quality /= w * h;
 828         }
 829
 830         all_len+=len;
 831         all_frametime+=sh->frametime;
 832         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 833             ++frame_number, quality, len, (double)all_len/1024);
 834         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 835            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 836            (double)(all_len*8)/all_frametime/1000.0);
 837         switch(pic->pict_type){
 838         case FF_I_TYPE:
 839             fprintf(fvstats, "type= I\n");
 840             break;
 841         case FF_P_TYPE:
 842             fprintf(fvstats, "type= P\n");
 843             break;
 844         case FF_S_TYPE:
 845             fprintf(fvstats, "type= S\n");
 846             break;
 847         case FF_B_TYPE:
 848             fprintf(fvstats, "type= B\n");
 849             break;
 850         default:
 851             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 852             break;
 853         }
 854
 855         ctx->qp_stat[(int)(quality+0.5)]++;
 856         ctx->qp_sum += quality;
 857         ctx->inv_qp_sum += 1.0/(double)quality;
 858
 859         break;
 860     }
 861 //--
 862
 863     if(!got_picture) return NULL;        // skipped image
 864
 865     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 866
 867     if(dr1 && pic->opaque){
 868         mpi= (mp_image_t *)pic->opaque;
 869     }
 870
 871     if(!mpi)
 872     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 873         avctx->width, avctx->height);
 874     if(!mpi){        // temporary!
 875         mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] Couldn't allocate image for codec.\n");
 876         return NULL;
 877     }
 878
 879     if(!dr1){
 880         mpi->planes[0]=pic->data[0];
 881         mpi->planes[1]=pic->data[1];
 882         mpi->planes[2]=pic->data[2];
 883         mpi->planes[3]=pic->data[3];
 884         mpi->stride[0]=pic->linesize[0];
 885         mpi->stride[1]=pic->linesize[1];
 886         mpi->stride[2]=pic->linesize[2];
 887         mpi->stride[3]=pic->linesize[3];
 888     }
 889
 890     if (!mpi->planes[0])
 891         return NULL;
 892
 893     if(ctx->best_csp == IMGFMT_422P && mpi->chroma_y_shift==1){
 894         // we have 422p but user wants 420p
 895         mpi->stride[1]*=2;
 896         mpi->stride[2]*=2;
 897     }
 898
 899 #if HAVE_BIGENDIAN
 900     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 901     if (mpi->bpp == 8)
 902         swap_palette(mpi->planes[1]);
 903 #endif
 904 /* to comfirm with newer lavc style */
 905     mpi->qscale =pic->qscale_table;
 906     mpi->qstride=pic->qstride;
 907     mpi->pict_type=pic->pict_type;
 908     mpi->qscale_type= pic->qscale_type;
 909     mpi->fields = MP_IMGFIELD_ORDERED;
 910     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 911     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 912     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 913
 914     return mpi;
 915 }
 916
 917 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 918                                     const enum PixelFormat *fmt){
 919     enum PixelFormat selected_format;
 920     int imgfmt;
 921     sh_video_t *sh = avctx->opaque;
 922     int i;
 923
 924     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 925         imgfmt = pixfmt2imgfmt(fmt[i]);
 926         if(!IMGFMT_IS_HWACCEL(imgfmt)) continue;
 927         mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] Trying pixfmt=%d.\n", i);
 928         if(init_vo(sh, fmt[i]) >= 0) {
 929             break;
 930         }
 931     }
 932     selected_format = fmt[i];
 933     return selected_format;
 934 }
 935
 936 const struct vd_functions mpcodecs_vd_ffmpeg = {
 937     .info = &info,
 938     .init = init,
 939     .uninit = uninit,
 940     .control = control,
 941     .decode2 = decode
 942 };