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
  24 #include "config.h"
  25 #include "mp_msg.h"
  26 #include "help_mp.h"
  27 #include "av_opts.h"
  28
  29 #include "libavutil/common.h"
  30 #include "libavutil/intreadwrite.h"
  31 #include "mpbswap.h"
  32 #include "fmt-conversion.h"
  33
  34 #include "vd_internal.h"
  35
  36 static const vd_info_t info = {
  37     "FFmpeg's libavcodec codec family",
  38     "ffmpeg",
  39     "A'rpi",
  40     "A'rpi, Michael, Alex",
  41     "native codecs"
  42 };
  43
  44 LIBVD_EXTERN(ffmpeg)
  45
  46 #include "libavcodec/avcodec.h"
  47
  48 #if AVPALETTE_SIZE > 1024
  49 #error palette too large, adapt libmpcodecs/vf.c:vf_get_image
  50 #endif
  51
  52 #if CONFIG_XVMC
  53 #include "libavcodec/xvmc.h"
  54 #endif
  55
  56 int avcodec_initialized=0;
  57
  58 typedef struct {
  59     AVCodecContext *avctx;
  60     AVFrame *pic;
  61     enum PixelFormat pix_fmt;
  62     int do_slices;
  63     int do_dr1;
  64     int vo_initialized;
  65     int best_csp;
  66     int b_age;
  67     int ip_age[2];
  68     int qp_stat[32];
  69     double qp_sum;
  70     double inv_qp_sum;
  71     int ip_count;
  72     int b_count;
  73     AVRational last_sample_aspect_ratio;
  74 } vd_ffmpeg_ctx;
  75
  76 #include "m_option.h"
  77
  78 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  79 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  80 static void draw_slice(struct AVCodecContext *s, const AVFrame *src, int offset[4],
  81                        int y, int type, int height);
  82
  83 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  84                                    const enum PixelFormat *pix_fmt);
  85
  86 static int lavc_param_workaround_bugs= FF_BUG_AUTODETECT;
  87 static int lavc_param_error_resilience=2;
  88 static int lavc_param_error_concealment=3;
  89 static int lavc_param_gray=0;
  90 static int lavc_param_vstats=0;
  91 static int lavc_param_idct_algo=0;
  92 static int lavc_param_debug=0;
  93 static int lavc_param_vismv=0;
  94 static int lavc_param_skip_top=0;
  95 static int lavc_param_skip_bottom=0;
  96 static int lavc_param_fast=0;
  97 static int lavc_param_lowres=0;
  98 static char *lavc_param_lowres_str=NULL;
  99 static char *lavc_param_skip_loop_filter_str = NULL;
 100 static char *lavc_param_skip_idct_str = NULL;
 101 static char *lavc_param_skip_frame_str = NULL;
 102 static int lavc_param_threads=1;
 103 static int lavc_param_bitexact=0;
 104 static char *lavc_avopt = NULL;
 105
 106 const m_option_t lavc_decode_opts_conf[]={
 107     {"bug", &lavc_param_workaround_bugs, CONF_TYPE_INT, CONF_RANGE, -1, 999999, NULL},
 108     {"er", &lavc_param_error_resilience, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
 109     {"gray", &lavc_param_gray, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_PART, NULL},
 110     {"idct", &lavc_param_idct_algo, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
 111     {"ec", &lavc_param_error_concealment, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
 112     {"vstats", &lavc_param_vstats, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 113     {"debug", &lavc_param_debug, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
 114     {"vismv", &lavc_param_vismv, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
 115     {"st", &lavc_param_skip_top, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
 116     {"sb", &lavc_param_skip_bottom, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
 117     {"fast", &lavc_param_fast, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG2_FAST, NULL},
 118     {"lowres", &lavc_param_lowres_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 119     {"skiploopfilter", &lavc_param_skip_loop_filter_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 120     {"skipidct", &lavc_param_skip_idct_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 121     {"skipframe", &lavc_param_skip_frame_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 122     {"threads", &lavc_param_threads, CONF_TYPE_INT, CONF_RANGE, 1, 8, NULL},
 123     {"bitexact", &lavc_param_bitexact, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_BITEXACT, NULL},
 124     {"o", &lavc_avopt, CONF_TYPE_STRING, 0, 0, 0, NULL},
 125     {NULL, NULL, 0, 0, 0, 0, NULL}
 126 };
 127
 128 static enum AVDiscard str2AVDiscard(char *str) {
 129     if (!str)                               return AVDISCARD_DEFAULT;
 130     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
 131     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
 132     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
 133     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 134     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 135     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 136     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 137     return AVDISCARD_DEFAULT;
 138 }
 139
 140 // to set/get/query special features/parameters
 141 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 142     vd_ffmpeg_ctx *ctx = sh->context;
 143     AVCodecContext *avctx = ctx->avctx;
 144     switch(cmd){
 145     case VDCTRL_QUERY_FORMAT:
 146     {
 147         int format =(*((int *)arg));
 148         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 149         // possible conversions:
 150         switch(format){
 151         case IMGFMT_YV12:
 152         case IMGFMT_IYUV:
 153         case IMGFMT_I420:
 154             // "converted" using pointer/stride modification
 155             if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
 156             if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 157             break;
 158 #if CONFIG_XVMC
 159         case IMGFMT_XVMC_IDCT_MPEG2:
 160         case IMGFMT_XVMC_MOCO_MPEG2:
 161             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 162 #endif
 163         }
 164         return CONTROL_FALSE;
 165     }
 166     case VDCTRL_RESYNC_STREAM:
 167         avcodec_flush_buffers(avctx);
 168         return CONTROL_TRUE;
 169     case VDCTRL_QUERY_UNSEEN_FRAMES:
 170         return avctx->has_b_frames + 10;
 171     }
 172     return CONTROL_UNKNOWN;
 173 }
 174
 175 static void mp_msp_av_log_callback(void *ptr, int level, const char *fmt,
 176                                    va_list vl)
 177 {
 178     static int print_prefix=1;
 179     AVClass *avc= ptr ? *(AVClass **)ptr : NULL;
 180     int type= MSGT_FIXME;
 181     int mp_level;
 182     char buf[256];
 183
 184     switch(level){
 185     case AV_LOG_VERBOSE: mp_level = MSGL_V ; break;
 186     case AV_LOG_DEBUG:  mp_level= MSGL_V   ; break;
 187     case AV_LOG_INFO :  mp_level= MSGL_INFO; break;
 188     case AV_LOG_ERROR:  mp_level= MSGL_ERR ; break;
 189     default          :  mp_level= MSGL_ERR ; break;
 190     }
 191
 192     if (!mp_msg_test(type, mp_level)) return;
 193
 194     if(ptr){
 195         if(!strcmp(avc->class_name, "AVCodecContext")){
 196             AVCodecContext *s= ptr;
 197             if(s->codec){
 198                 if(s->codec->type == CODEC_TYPE_AUDIO){
 199                     if(s->codec->decode)
 200                         type= MSGT_DECAUDIO;
 201                 }else if(s->codec->type == CODEC_TYPE_VIDEO){
 202                     if(s->codec->decode)
 203                         type= MSGT_DECVIDEO;
 204                 }
 205                 //FIXME subtitles, encoders (what msgt for them? there is no appropriate ...)
 206             }
 207         }else if(!strcmp(avc->class_name, "AVFormatContext")){
 208 #if 0 //needs libavformat include FIXME iam too lazy to do this cleanly, probably the whole should be moved out of this file ...
 209             AVFormatContext *s= ptr;
 210             if(s->iformat)
 211                 type= MSGT_DEMUXER;
 212             else if(s->oformat)
 213                 type= MSGT_MUXER;
 214 #endif
 215         }
 216     }
 217
 218     if(print_prefix && avc) {
 219         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 220     }
 221
 222     print_prefix= strchr(fmt, '\n') != NULL;
 223     vsnprintf(buf, sizeof(buf), fmt, vl);
 224     mp_msg(type, mp_level, buf);
 225 }
 226
 227 static void set_format_params(struct AVCodecContext *avctx, enum PixelFormat fmt){
 228     int imgfmt;
 229     if (fmt == PIX_FMT_NONE)
 230         return;
 231     imgfmt = pixfmt2imgfmt(fmt);
 232     if (IMGFMT_IS_XVMC(imgfmt) || IMGFMT_IS_VDPAU(imgfmt)) {
 233         sh_video_t *sh     = avctx->opaque;
 234         vd_ffmpeg_ctx *ctx = sh->context;
 235         ctx->do_dr1    = 1;
 236         ctx->do_slices = 1;
 237         avctx->thread_count    = 1;
 238         avctx->get_buffer      = get_buffer;
 239         avctx->release_buffer  = release_buffer;
 240         avctx->reget_buffer    = get_buffer;
 241         avctx->draw_horiz_band = draw_slice;
 242         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedMPEG2);
 243         avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 244     }
 245 }
 246
 247 // init driver
 248 static int init(sh_video_t *sh){
 249     AVCodecContext *avctx;
 250     vd_ffmpeg_ctx *ctx;
 251     AVCodec *lavc_codec;
 252     int lowres_w=0;
 253     int do_vis_debug= lavc_param_vismv || (lavc_param_debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 254
 255     if(!avcodec_initialized){
 256         avcodec_init();
 257         avcodec_register_all();
 258         avcodec_initialized=1;
 259         av_log_set_callback(mp_msp_av_log_callback);
 260     }
 261
 262     ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
 263     if (!ctx)
 264         return 0;
 265     memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
 266
 267     lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
 268     if(!lavc_codec){
 269         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MissingLAVCcodec, sh->codec->dll);
 270         uninit(sh);
 271         return 0;
 272     }
 273
 274     if(vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 275         ctx->do_slices=1;
 276
 277     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)
 278         ctx->do_dr1=1;
 279     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 280     ctx->ip_count= ctx->b_count= 0;
 281
 282     ctx->pic = avcodec_alloc_frame();
 283     ctx->avctx = avcodec_alloc_context();
 284     avctx = ctx->avctx;
 285     avctx->opaque = sh;
 286     avctx->codec_type = CODEC_TYPE_VIDEO;
 287     avctx->codec_id = lavc_codec->id;
 288
 289 #if CONFIG_VDPAU
 290     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU){
 291         avctx->get_format = get_format;
 292     }
 293 #endif /* CONFIG_VDPAU */
 294 #if CONFIG_XVMC
 295     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL){
 296         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedCodec);
 297         avctx->get_format= get_format;//for now only this decoder will use it
 298         // HACK around badly placed checks in mpeg_mc_decode_init
 299         set_format_params(avctx, PIX_FMT_XVMC_MPEG2_IDCT);
 300     }
 301 #endif /* CONFIG_XVMC */
 302     if(ctx->do_dr1){
 303         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 304         avctx->get_buffer= get_buffer;
 305         avctx->release_buffer= release_buffer;
 306         avctx->reget_buffer= get_buffer;
 307     }
 308
 309     avctx->flags|= lavc_param_bitexact;
 310
 311     avctx->width = sh->disp_w;
 312     avctx->height= sh->disp_h;
 313     avctx->workaround_bugs= lavc_param_workaround_bugs;
 314     avctx->error_recognition= lavc_param_error_resilience;
 315     if(lavc_param_gray) avctx->flags|= CODEC_FLAG_GRAY;
 316     avctx->flags2|= lavc_param_fast;
 317     avctx->codec_tag= sh->format;
 318     avctx->stream_codec_tag= sh->video.fccHandler;
 319     avctx->idct_algo= lavc_param_idct_algo;
 320     avctx->error_concealment= lavc_param_error_concealment;
 321     avctx->debug= lavc_param_debug;
 322     if (lavc_param_debug)
 323         av_log_set_level(AV_LOG_DEBUG);
 324     avctx->debug_mv= lavc_param_vismv;
 325     avctx->skip_top   = lavc_param_skip_top;
 326     avctx->skip_bottom= lavc_param_skip_bottom;
 327     if(lavc_param_lowres_str != NULL)
 328     {
 329         sscanf(lavc_param_lowres_str, "%d,%d", &lavc_param_lowres, &lowres_w);
 330         if(lavc_param_lowres < 1 || lavc_param_lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 331             lavc_param_lowres = 0;
 332         avctx->lowres = lavc_param_lowres;
 333     }
 334     avctx->skip_loop_filter = str2AVDiscard(lavc_param_skip_loop_filter_str);
 335     avctx->skip_idct = str2AVDiscard(lavc_param_skip_idct_str);
 336     avctx->skip_frame = str2AVDiscard(lavc_param_skip_frame_str);
 337
 338     if(lavc_avopt){
 339         if(parse_avopts(avctx, lavc_avopt) < 0){
 340             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_avopt);
 341             uninit(sh);
 342             return 0;
 343         }
 344     }
 345
 346     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 347     switch (sh->format) {
 348     case mmioFOURCC('S','V','Q','3'):
 349     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 350        in the phony AVI header if demux_lavf is used. The first case is
 351        handled here; the second case falls through to the next section. */
 352         if (sh->ImageDesc) {
 353             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 354             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 355             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 356             break;
 357         }
 358         /* fallthrough */
 359
 360     case mmioFOURCC('A','V','R','n'):
 361     case mmioFOURCC('M','J','P','G'):
 362     /* AVRn stores huffman table in AVI header */
 363     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 364        MJPG fourcc :( */
 365         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 366             break;
 367         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 368         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 369         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 370         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 371
 372 #if 0
 373         {
 374             int x;
 375             uint8_t *p = avctx->extradata;
 376
 377             for (x=0; x<avctx->extradata_size; x++)
 378                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 379             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 380         }
 381 #endif
 382         break;
 383
 384     case mmioFOURCC('R', 'V', '1', '0'):
 385     case mmioFOURCC('R', 'V', '1', '3'):
 386     case mmioFOURCC('R', 'V', '2', '0'):
 387     case mmioFOURCC('R', 'V', '3', '0'):
 388     case mmioFOURCC('R', 'V', '4', '0'):
 389         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 390             /* only 1 packet per frame & sub_id from fourcc */
 391             avctx->extradata_size= 8;
 392             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 393             ((uint32_t *)avctx->extradata)[0] = 0;
 394             ((uint32_t *)avctx->extradata)[1] =
 395                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 396         } else {
 397             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 398             avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 399             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 400             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 401         }
 402         avctx->sub_id= AV_RB32(avctx->extradata+4);
 403
 404 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 405         break;
 406
 407     default:
 408         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 409             break;
 410         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 411         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 412         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 413         break;
 414     }
 415     /* Pass palette to codec */
 416     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 417         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 418         avctx->palctrl->palette_changed = 1;
 419         if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
 420             /* Palette size in biSize */
 421             memcpy(avctx->palctrl->palette, sh->bih+1,
 422                    FFMIN(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
 423         else
 424             /* Palette size in biClrUsed */
 425             memcpy(avctx->palctrl->palette, sh->bih+1,
 426                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 427         }
 428
 429     if(sh->bih)
 430         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 431
 432     if(lavc_param_threads > 1)
 433         avcodec_thread_init(avctx, lavc_param_threads);
 434     /* open it */
 435     if (avcodec_open(avctx, lavc_codec) < 0) {
 436         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantOpenCodec);
 437         uninit(sh);
 438         return 0;
 439     }
 440     // this is necessary in case get_format was never called and init_vo is
 441     // too late e.g. for H.264 VDPAU
 442     set_format_params(avctx, avctx->pix_fmt);
 443     mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
 444     return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
 445 }
 446
 447 // uninit driver
 448 static void uninit(sh_video_t *sh){
 449     vd_ffmpeg_ctx *ctx = sh->context;
 450     AVCodecContext *avctx = ctx->avctx;
 451
 452     if(lavc_param_vstats){
 453         int i;
 454         for(i=1; i<32; i++){
 455             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 456         }
 457         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_ArithmeticMeanOfQP,
 458             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 459             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 460             );
 461     }
 462
 463     if (avctx) {
 464         if (avctx->codec && avcodec_close(avctx) < 0)
 465             mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantCloseCodec);
 466
 467         av_freep(&avctx->extradata);
 468         av_freep(&avctx->palctrl);
 469         av_freep(&avctx->slice_offset);
 470     }
 471
 472     av_freep(&avctx);
 473     av_freep(&ctx->pic);
 474     if (ctx)
 475         free(ctx);
 476 }
 477
 478 static void draw_slice(struct AVCodecContext *s,
 479                         const AVFrame *src, int offset[4],
 480                         int y, int type, int height){
 481     sh_video_t *sh = s->opaque;
 482     uint8_t *source[MP_MAX_PLANES]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 483     int strides[MP_MAX_PLANES] = {src->linesize[0], src->linesize[1], src->linesize[2]};
 484 #if 0
 485     int start=0, i;
 486     int width= s->width;
 487     int skip_stride= ((width<<lavc_param_lowres)+15)>>4;
 488     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 489     int threshold= s->coded_frame->age;
 490     if(s->pict_type!=B_TYPE){
 491         for(i=0; i*16<width+16; i++){
 492             if(i*16>=width || skip[i]>=threshold){
 493                 if(start==i) start++;
 494                 else{
 495                     uint8_t *src2[3]= {src[0] + start*16,
 496                                      src[1] + start*8,
 497                                      src[2] + start*8};
 498 //printf("%2d-%2d x %d\n", start, i, y);
 499                     mpcodecs_draw_slice (sh, src2, stride, (i-start)*16, height, start*16, y);
 500                     start= i+1;
 501                 }
 502             }
 503         }
 504     }else
 505 #endif
 506     if (height < 0)
 507     {
 508         int i;
 509         height = -height;
 510         y -= height;
 511         for (i = 0; i < MP_MAX_PLANES; i++)
 512         {
 513             strides[i] = -strides[i];
 514             source[i] -= strides[i];
 515         }
 516     }
 517     if (y < sh->disp_h) {
 518         mpcodecs_draw_slice (sh, source, strides, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
 519     }
 520 }
 521
 522
 523 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 524     vd_ffmpeg_ctx *ctx = sh->context;
 525     AVCodecContext *avctx = ctx->avctx;
 526     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 527     int width, height;
 528
 529     width = avctx->width;
 530     height = avctx->height;
 531
 532     // HACK!
 533     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 534     // use dimensions from BIH to avoid black borders at the right and bottom.
 535     if (sh->bih && sh->ImageDesc) {
 536         width = sh->bih->biWidth>>lavc_param_lowres;
 537         height = sh->bih->biHeight>>lavc_param_lowres;
 538     }
 539
 540      // it is possible another vo buffers to be used after vo config()
 541      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 542     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 543         width != sh->disp_w  ||
 544         height != sh->disp_h ||
 545         pix_fmt != ctx->pix_fmt ||
 546         !ctx->vo_initialized)
 547     {
 548         // this is a special-case HACK for MPEG-1/2 VDPAU that uses neither get_format nor
 549         // sets the value correctly in avcodec_open.
 550         set_format_params(avctx, avctx->pix_fmt);
 551         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 552         if (sh->aspect == 0 ||
 553             av_cmp_q(avctx->sample_aspect_ratio,
 554                      ctx->last_sample_aspect_ratio))
 555             sh->aspect = aspect;
 556         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 557         sh->disp_w = width;
 558         sh->disp_h = height;
 559         ctx->pix_fmt = pix_fmt;
 560         ctx->best_csp = pixfmt2imgfmt(pix_fmt);
 561         if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, ctx->best_csp))
 562             return -1;
 563         ctx->vo_initialized = 1;
 564     }
 565     return 0;
 566 }
 567
 568 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 569     sh_video_t *sh = avctx->opaque;
 570     vd_ffmpeg_ctx *ctx = sh->context;
 571     mp_image_t *mpi=NULL;
 572     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 573     int type= MP_IMGTYPE_IPB;
 574     int width= avctx->width;
 575     int height= avctx->height;
 576     avcodec_align_dimensions(avctx, &width, &height);
 577 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 578
 579     if (pic->buffer_hints) {
 580         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 581         type = MP_IMGTYPE_TEMP;
 582         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 583             flags |= MP_IMGFLAG_READABLE;
 584         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 585             type = MP_IMGTYPE_STATIC;
 586             flags |= MP_IMGFLAG_PRESERVE;
 587         }
 588         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 589             type = MP_IMGTYPE_STATIC;
 590             flags |= MP_IMGFLAG_PRESERVE;
 591         }
 592         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 593                  MP_IMGFLAG_DRAW_CALLBACK:0;
 594         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 595     } else {
 596         if(!pic->reference){
 597             ctx->b_count++;
 598             flags|=(!avctx->hurry_up && ctx->do_slices) ?
 599                      MP_IMGFLAG_DRAW_CALLBACK:0;
 600         }else{
 601             ctx->ip_count++;
 602             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 603                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 604         }
 605     }
 606
 607     if(init_vo(sh, avctx->pix_fmt) < 0){
 608         avctx->release_buffer= avcodec_default_release_buffer;
 609         avctx->get_buffer= avcodec_default_get_buffer;
 610         return avctx->get_buffer(avctx, pic);
 611     }
 612
 613     if (IMGFMT_IS_XVMC(ctx->best_csp) || IMGFMT_IS_VDPAU(ctx->best_csp)) {
 614         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 615     } else
 616     if (!pic->buffer_hints) {
 617         if(ctx->b_count>1 || ctx->ip_count>2){
 618             mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_DRIFailure);
 619
 620             ctx->do_dr1=0; //FIXME
 621             avctx->get_buffer= avcodec_default_get_buffer;
 622             return avctx->get_buffer(avctx, pic);
 623         }
 624
 625         if(avctx->has_b_frames){
 626             type= MP_IMGTYPE_IPB;
 627         }else{
 628             type= MP_IMGTYPE_IP;
 629         }
 630         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 631     }
 632
 633     if (ctx->best_csp == IMGFMT_RGB8 || ctx->best_csp == IMGFMT_BGR8)
 634         flags |= MP_IMGFLAG_RGB_PALETTE;
 635     mpi= mpcodecs_get_image(sh, type, flags, width, height);
 636     if (!mpi) return -1;
 637
 638     // ok, let's see what did we get:
 639     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 640        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 641         // nice, filter/vo likes draw_callback :)
 642         avctx->draw_horiz_band= draw_slice;
 643     } else
 644         avctx->draw_horiz_band= NULL;
 645     if(IMGFMT_IS_VDPAU(mpi->imgfmt)) {
 646         avctx->draw_horiz_band= draw_slice;
 647     }
 648 #if CONFIG_XVMC
 649     if(IMGFMT_IS_XVMC(mpi->imgfmt)) {
 650         struct xvmc_pix_fmt *render = mpi->priv; //same as data[2]
 651         avctx->draw_horiz_band= draw_slice;
 652         if(!avctx->xvmc_acceleration) {
 653             mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_McGetBufferShouldWorkOnlyWithXVMC);
 654             assert(0);
 655             exit(1);
 656 //            return -1;//!!fixme check error conditions in ffmpeg
 657         }
 658         if(!(mpi->flags & MP_IMGFLAG_DIRECT)) {
 659             mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MPCODECS_OnlyBuffersAllocatedByVoXvmcAllowed);
 660             assert(0);
 661             exit(1);
 662 //            return -1;//!!fixme check error conditions in ffmpeg
 663         }
 664         if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 665             mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::get_buffer (xvmc render=%p)\n", render);
 666         assert(render != 0);
 667         assert(render->xvmc_id == AV_XVMC_ID);
 668         render->state |= AV_XVMC_STATE_PREDICTION;
 669     }
 670 #endif
 671
 672     pic->data[0]= mpi->planes[0];
 673     pic->data[1]= mpi->planes[1];
 674     pic->data[2]= mpi->planes[2];
 675     pic->data[3]= mpi->planes[3];
 676
 677 #if 0
 678     assert(mpi->width >= ((width +align)&(~align)));
 679     assert(mpi->height >= ((height+align)&(~align)));
 680     assert(mpi->stride[0] >= mpi->width);
 681     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 682         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 683         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 684
 685         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 686         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 687         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 688         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 689         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 690         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 691     }
 692 #endif
 693
 694     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 695      * lavc will check that and die with an error message, if its not true
 696      */
 697     pic->linesize[0]= mpi->stride[0];
 698     pic->linesize[1]= mpi->stride[1];
 699     pic->linesize[2]= mpi->stride[2];
 700     pic->linesize[3]= mpi->stride[3];
 701
 702     pic->opaque = mpi;
 703 //printf("%X\n", (int)mpi->planes[0]);
 704 #if 0
 705 if(mpi->flags&MP_IMGFLAG_DIRECT)
 706     printf("D");
 707 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 708     printf("S");
 709 else
 710     printf(".");
 711 #endif
 712     if(pic->reference){
 713         pic->age= ctx->ip_age[0];
 714
 715         ctx->ip_age[0]= ctx->ip_age[1]+1;
 716         ctx->ip_age[1]= 1;
 717         ctx->b_age++;
 718     }else{
 719         pic->age= ctx->b_age;
 720
 721         ctx->ip_age[0]++;
 722         ctx->ip_age[1]++;
 723         ctx->b_age=1;
 724     }
 725     pic->type= FF_BUFFER_TYPE_USER;
 726     return 0;
 727 }
 728
 729 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 730     mp_image_t *mpi= pic->opaque;
 731     sh_video_t *sh = avctx->opaque;
 732     vd_ffmpeg_ctx *ctx = sh->context;
 733     int i;
 734
 735 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 736
 737     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 738         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 739             ctx->ip_count--;
 740         else
 741             ctx->b_count--;
 742     }
 743
 744     if (mpi) {
 745         // Palette support: free palette buffer allocated in get_buffer
 746         if (mpi->bpp == 8)
 747             av_freep(&mpi->planes[1]);
 748 #if CONFIG_XVMC
 749         if (IMGFMT_IS_XVMC(mpi->imgfmt)) {
 750             struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)pic->data[2]; //same as mpi->priv
 751             if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 752                 mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::release_buffer (xvmc render=%p)\n", render);
 753             assert(render!=NULL);
 754             assert(render->xvmc_id == AV_XVMC_ID);
 755             render->state&=~AV_XVMC_STATE_PREDICTION;
 756         }
 757 #endif
 758         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 759         mpi->usage_count--;
 760     }
 761
 762     if(pic->type!=FF_BUFFER_TYPE_USER){
 763         avcodec_default_release_buffer(avctx, pic);
 764         return;
 765     }
 766
 767     for(i=0; i<4; i++){
 768         pic->data[i]= NULL;
 769     }
 770 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 771 }
 772
 773 // copypaste from demux_real.c - it should match to get it working!
 774 //FIXME put into some header
 775 typedef struct dp_hdr_s {
 776     uint32_t chunks;        // number of chunks
 777     uint32_t timestamp; // timestamp from packet header
 778     uint32_t len;        // length of actual data
 779     uint32_t chunktab;        // offset to chunk offset array
 780 } dp_hdr_t;
 781
 782 static void swap_palette(void *pal)
 783 {
 784     int i;
 785     uint32_t *p = pal;
 786     for (i = 0; i < AVPALETTE_COUNT; i++)
 787         p[i] = le2me_32(p[i]);
 788 }
 789
 790 // decode a frame
 791 static mp_image_t *decode(sh_video_t *sh, void *data, int len, int flags){
 792     int got_picture=0;
 793     int ret;
 794     vd_ffmpeg_ctx *ctx = sh->context;
 795     AVFrame *pic= ctx->pic;
 796     AVCodecContext *avctx = ctx->avctx;
 797     mp_image_t *mpi=NULL;
 798     int dr1= ctx->do_dr1;
 799     AVPacket pkt;
 800
 801     if(len<=0) return NULL; // skipped frame
 802
 803 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 804     if (!dr1)
 805     avctx->draw_horiz_band=NULL;
 806     if(ctx->vo_initialized && !(flags&3) && !dr1){
 807         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 808             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 809             sh->disp_w, sh->disp_h);
 810         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 811             // vd core likes slices!
 812             avctx->draw_horiz_band=draw_slice;
 813         }
 814     }
 815
 816     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 817
 818     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 819            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 820     av_init_packet(&pkt);
 821     pkt.data = data;
 822     pkt.size = len;
 823     // HACK: make PNGs decode normally instead of as CorePNG delta frames
 824     pkt.flags = PKT_FLAG_KEY;
 825     ret = avcodec_decode_video2(avctx, pic, &got_picture, &pkt);
 826
 827     dr1= ctx->do_dr1;
 828     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 829 //printf("repeat: %d\n", pic->repeat_pict);
 830 //-- vstats generation
 831     while(lavc_param_vstats){ // always one time loop
 832         static FILE *fvstats=NULL;
 833         char filename[20];
 834         static long long int all_len=0;
 835         static int frame_number=0;
 836         static double all_frametime=0.0;
 837         AVFrame *pic= avctx->coded_frame;
 838         double quality=0.0;
 839
 840         if(!fvstats) {
 841             time_t today2;
 842             struct tm *today;
 843             today2 = time(NULL);
 844             today = localtime(&today2);
 845             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 846                 today->tm_min, today->tm_sec);
 847             fvstats = fopen(filename, "w");
 848             if(!fvstats) {
 849                 perror("fopen");
 850                 lavc_param_vstats=0; // disable block
 851                 break;
 852                 /*exit(1);*/
 853             }
 854         }
 855
 856         // average MB quantizer
 857         {
 858             int x, y;
 859             int w = ((avctx->width  << lavc_param_lowres)+15) >> 4;
 860             int h = ((avctx->height << lavc_param_lowres)+15) >> 4;
 861             int8_t *q = pic->qscale_table;
 862             for(y = 0; y < h; y++) {
 863                 for(x = 0; x < w; x++)
 864                     quality += (double)*(q+x);
 865                 q += pic->qstride;
 866             }
 867             quality /= w * h;
 868         }
 869
 870         all_len+=len;
 871         all_frametime+=sh->frametime;
 872         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 873             ++frame_number, quality, len, (double)all_len/1024);
 874         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 875            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 876            (double)(all_len*8)/all_frametime/1000.0);
 877         switch(pic->pict_type){
 878         case FF_I_TYPE:
 879             fprintf(fvstats, "type= I\n");
 880             break;
 881         case FF_P_TYPE:
 882             fprintf(fvstats, "type= P\n");
 883             break;
 884         case FF_S_TYPE:
 885             fprintf(fvstats, "type= S\n");
 886             break;
 887         case FF_B_TYPE:
 888             fprintf(fvstats, "type= B\n");
 889             break;
 890         default:
 891             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 892             break;
 893         }
 894
 895         ctx->qp_stat[(int)(quality+0.5)]++;
 896         ctx->qp_sum += quality;
 897         ctx->inv_qp_sum += 1.0/(double)quality;
 898
 899         break;
 900     }
 901 //--
 902
 903     if(!got_picture) return NULL;        // skipped image
 904
 905     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 906
 907     if(dr1 && pic->opaque){
 908         mpi= (mp_image_t *)pic->opaque;
 909     }
 910
 911     if(!mpi)
 912     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 913         avctx->width, avctx->height);
 914     if(!mpi){        // temporary!
 915         mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_CouldntAllocateImageForCodec);
 916         return NULL;
 917     }
 918
 919     if(!dr1){
 920         mpi->planes[0]=pic->data[0];
 921         mpi->planes[1]=pic->data[1];
 922         mpi->planes[2]=pic->data[2];
 923         mpi->planes[3]=pic->data[3];
 924         mpi->stride[0]=pic->linesize[0];
 925         mpi->stride[1]=pic->linesize[1];
 926         mpi->stride[2]=pic->linesize[2];
 927         mpi->stride[3]=pic->linesize[3];
 928     }
 929
 930     if (!mpi->planes[0])
 931         return NULL;
 932
 933     if(avctx->pix_fmt==PIX_FMT_YUV422P && mpi->chroma_y_shift==1){
 934         // we have 422p but user wants 420p
 935         mpi->stride[1]*=2;
 936         mpi->stride[2]*=2;
 937     }
 938
 939 #if HAVE_BIGENDIAN
 940     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 941     if (mpi->bpp == 8)
 942         swap_palette(mpi->planes[1]);
 943 #endif
 944 /* to comfirm with newer lavc style */
 945     mpi->qscale =pic->qscale_table;
 946     mpi->qstride=pic->qstride;
 947     mpi->pict_type=pic->pict_type;
 948     mpi->qscale_type= pic->qscale_type;
 949     mpi->fields = MP_IMGFIELD_ORDERED;
 950     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 951     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 952     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 953
 954     return mpi;
 955 }
 956
 957 #if CONFIG_XVMC || CONFIG_VDPAU
 958 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 959                                     const enum PixelFormat *fmt){
 960     enum PixelFormat selected_format;
 961     int imgfmt;
 962     sh_video_t *sh = avctx->opaque;
 963     int i;
 964
 965     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 966         imgfmt = pixfmt2imgfmt(fmt[i]);
 967         if(!IMGFMT_IS_XVMC(imgfmt) && !IMGFMT_IS_VDPAU(imgfmt)) continue;
 968         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_TryingPixfmt, i);
 969         if(init_vo(sh, fmt[i]) >= 0) {
 970             break;
 971         }
 972     }
 973     selected_format = fmt[i];
 974     set_format_params(avctx, selected_format);
 975     return selected_format;
 976 }
 977 #endif /* CONFIG_XVMC || CONFIG_VDPAU */