libmpcodecs/vd_ffmpeg.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <assert.h>
   4 #include <time.h>
   5
   6 #include "config.h"
   7 #include "mp_msg.h"
   8 #include "help_mp.h"
   9 #include "av_opts.h"
  10
  11 #include "libavutil/common.h"
  12 #include "libavutil/intreadwrite.h"
  13 #include "mpbswap.h"
  14 #include "fmt-conversion.h"
  15
  16 #include "vd_internal.h"
  17
  18 static vd_info_t info = {
  19     "FFmpeg's libavcodec codec family",
  20     "ffmpeg",
  21     "A'rpi",
  22     "A'rpi, Michael, Alex",
  23     "native codecs"
  24 };
  25
  26 LIBVD_EXTERN(ffmpeg)
  27
  28 #include "libavcodec/avcodec.h"
  29
  30 #if CONFIG_XVMC
  31 #include "libavcodec/xvmc.h"
  32 #endif
  33
  34 int avcodec_initialized=0;
  35
  36 typedef struct {
  37     AVCodecContext *avctx;
  38     AVFrame *pic;
  39     enum PixelFormat pix_fmt;
  40     int do_slices;
  41     int do_dr1;
  42     int vo_initialized;
  43     int best_csp;
  44     int b_age;
  45     int ip_age[2];
  46     int qp_stat[32];
  47     double qp_sum;
  48     double inv_qp_sum;
  49     int ip_count;
  50     int b_count;
  51     AVRational last_sample_aspect_ratio;
  52 } vd_ffmpeg_ctx;
  53
  54 #include "m_option.h"
  55
  56 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  57 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  58 static void draw_slice(struct AVCodecContext *s, AVFrame *src, int offset[4],
  59                        int y, int type, int height);
  60
  61 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  62                                    const enum PixelFormat *pix_fmt);
  63
  64 static int lavc_param_workaround_bugs= FF_BUG_AUTODETECT;
  65 static int lavc_param_error_resilience=2;
  66 static int lavc_param_error_concealment=3;
  67 static int lavc_param_gray=0;
  68 static int lavc_param_vstats=0;
  69 static int lavc_param_idct_algo=0;
  70 static int lavc_param_debug=0;
  71 static int lavc_param_vismv=0;
  72 static int lavc_param_skip_top=0;
  73 static int lavc_param_skip_bottom=0;
  74 static int lavc_param_fast=0;
  75 static int lavc_param_lowres=0;
  76 static char *lavc_param_lowres_str=NULL;
  77 static char *lavc_param_skip_loop_filter_str = NULL;
  78 static char *lavc_param_skip_idct_str = NULL;
  79 static char *lavc_param_skip_frame_str = NULL;
  80 static int lavc_param_threads=1;
  81 static int lavc_param_bitexact=0;
  82 static char *lavc_avopt = NULL;
  83
  84 const m_option_t lavc_decode_opts_conf[]={
  85     {"bug", &lavc_param_workaround_bugs, CONF_TYPE_INT, CONF_RANGE, -1, 999999, NULL},
  86     {"er", &lavc_param_error_resilience, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  87     {"gray", &lavc_param_gray, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_PART, NULL},
  88     {"idct", &lavc_param_idct_algo, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  89     {"ec", &lavc_param_error_concealment, CONF_TYPE_INT, CONF_RANGE, 0, 99, NULL},
  90     {"vstats", &lavc_param_vstats, CONF_TYPE_FLAG, 0, 0, 1, NULL},
  91     {"debug", &lavc_param_debug, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
  92     {"vismv", &lavc_param_vismv, CONF_TYPE_INT, CONF_RANGE, 0, 9999999, NULL},
  93     {"st", &lavc_param_skip_top, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
  94     {"sb", &lavc_param_skip_bottom, CONF_TYPE_INT, CONF_RANGE, 0, 999, NULL},
  95     {"fast", &lavc_param_fast, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG2_FAST, NULL},
  96     {"lowres", &lavc_param_lowres_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
  97     {"skiploopfilter", &lavc_param_skip_loop_filter_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
  98     {"skipidct", &lavc_param_skip_idct_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
  99     {"skipframe", &lavc_param_skip_frame_str, CONF_TYPE_STRING, 0, 0, 0, NULL},
 100     {"threads", &lavc_param_threads, CONF_TYPE_INT, CONF_RANGE, 1, 8, NULL},
 101     {"bitexact", &lavc_param_bitexact, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_BITEXACT, NULL},
 102     {"o", &lavc_avopt, CONF_TYPE_STRING, 0, 0, 0, NULL},
 103     {NULL, NULL, 0, 0, 0, 0, NULL}
 104 };
 105
 106 static enum AVDiscard str2AVDiscard(char *str) {
 107     if (!str)                               return AVDISCARD_DEFAULT;
 108     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
 109     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
 110     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
 111     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 112     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 113     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 114     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 115     return AVDISCARD_DEFAULT;
 116 }
 117
 118 // to set/get/query special features/parameters
 119 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 120     vd_ffmpeg_ctx *ctx = sh->context;
 121     AVCodecContext *avctx = ctx->avctx;
 122     switch(cmd){
 123     case VDCTRL_QUERY_FORMAT:
 124     {
 125         int format =(*((int *)arg));
 126         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 127         // possible conversions:
 128         switch(format){
 129         case IMGFMT_YV12:
 130         case IMGFMT_IYUV:
 131         case IMGFMT_I420:
 132             // "converted" using pointer/stride modification
 133             if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
 134             if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 135             break;
 136 #if CONFIG_XVMC
 137         case IMGFMT_XVMC_IDCT_MPEG2:
 138         case IMGFMT_XVMC_MOCO_MPEG2:
 139             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 140 #endif
 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         return avctx->has_b_frames + 10;
 149     }
 150     return CONTROL_UNKNOWN;
 151 }
 152
 153 void mp_msp_av_log_callback(void *ptr, int level, const char *fmt, va_list vl)
 154 {
 155     static int print_prefix=1;
 156     AVClass *avc= ptr ? *(AVClass **)ptr : NULL;
 157     int type= MSGT_FIXME;
 158     int mp_level;
 159     char buf[256];
 160
 161     switch(level){
 162     case AV_LOG_DEBUG:  mp_level= MSGL_V   ; break;
 163     case AV_LOG_INFO :  mp_level= MSGL_INFO; break;
 164     case AV_LOG_ERROR:  mp_level= MSGL_ERR ; break;
 165     default          :  mp_level= MSGL_ERR ; break;
 166     }
 167
 168     if (!mp_msg_test(type, mp_level)) return;
 169
 170     if(ptr){
 171         if(!strcmp(avc->class_name, "AVCodecContext")){
 172             AVCodecContext *s= ptr;
 173             if(s->codec){
 174                 if(s->codec->type == CODEC_TYPE_AUDIO){
 175                     if(s->codec->decode)
 176                         type= MSGT_DECAUDIO;
 177                 }else if(s->codec->type == CODEC_TYPE_VIDEO){
 178                     if(s->codec->decode)
 179                         type= MSGT_DECVIDEO;
 180                 }
 181                 //FIXME subtitles, encoders (what msgt for them? there is no appropriate ...)
 182             }
 183         }else if(!strcmp(avc->class_name, "AVFormatContext")){
 184 #if 0 //needs libavformat include FIXME iam too lazy to do this cleanly, probably the whole should be moved out of this file ...
 185             AVFormatContext *s= ptr;
 186             if(s->iformat)
 187                 type= MSGT_DEMUXER;
 188             else if(s->oformat)
 189                 type= MSGT_MUXER;
 190 #endif
 191         }
 192     }
 193
 194     if(print_prefix && avc) {
 195         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 196     }
 197
 198     print_prefix= strchr(fmt, '\n') != NULL;
 199     vsnprintf(buf, sizeof(buf), fmt, vl);
 200     mp_msg(type, mp_level, buf);
 201 }
 202
 203 static void set_format_params(struct AVCodecContext *avctx, enum PixelFormat fmt){
 204     int imgfmt;
 205     imgfmt = pixfmt2imgfmt(fmt);
 206     if (IMGFMT_IS_XVMC(imgfmt) || IMGFMT_IS_VDPAU(imgfmt)) {
 207         sh_video_t *sh     = avctx->opaque;
 208         vd_ffmpeg_ctx *ctx = sh->context;
 209         ctx->do_dr1    = 1;
 210         ctx->do_slices = 1;
 211         avctx->thread_count    = 1;
 212         avctx->get_buffer      = get_buffer;
 213         avctx->release_buffer  = release_buffer;
 214         avctx->reget_buffer    = get_buffer;
 215         avctx->draw_horiz_band = draw_slice;
 216         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedMPEG2);
 217         avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 218     }
 219 }
 220
 221 // init driver
 222 static int init(sh_video_t *sh){
 223     AVCodecContext *avctx;
 224     vd_ffmpeg_ctx *ctx;
 225     AVCodec *lavc_codec;
 226     int lowres_w=0;
 227     int do_vis_debug= lavc_param_vismv || (lavc_param_debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 228
 229     if(!avcodec_initialized){
 230         avcodec_init();
 231         avcodec_register_all();
 232         avcodec_initialized=1;
 233         av_log_set_callback(mp_msp_av_log_callback);
 234     }
 235
 236     ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
 237     if (!ctx)
 238         return 0;
 239     memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
 240
 241     lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
 242     if(!lavc_codec){
 243         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MissingLAVCcodec, sh->codec->dll);
 244         uninit(sh);
 245         return 0;
 246     }
 247
 248     if(vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 249         ctx->do_slices=1;
 250
 251     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)
 252         ctx->do_dr1=1;
 253     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 254     ctx->ip_count= ctx->b_count= 0;
 255
 256     ctx->pic = avcodec_alloc_frame();
 257     ctx->avctx = avcodec_alloc_context();
 258     avctx = ctx->avctx;
 259     avctx->opaque = sh;
 260
 261 #if CONFIG_VDPAU
 262     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU){
 263         avctx->get_format = get_format;
 264     }
 265 #endif /* CONFIG_VDPAU */
 266 #if CONFIG_XVMC
 267     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL){
 268         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedCodec);
 269         avctx->get_format= get_format;//for now only this decoder will use it
 270         // HACK around badly placed checks in mpeg_mc_decode_init
 271         set_format_params(avctx, PIX_FMT_XVMC_MPEG2_IDCT);
 272     }
 273 #endif /* CONFIG_XVMC */
 274     if(ctx->do_dr1){
 275         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 276         avctx->get_buffer= get_buffer;
 277         avctx->release_buffer= release_buffer;
 278         avctx->reget_buffer= get_buffer;
 279     }
 280
 281     avctx->flags|= lavc_param_bitexact;
 282
 283     avctx->width = sh->disp_w;
 284     avctx->height= sh->disp_h;
 285     avctx->workaround_bugs= lavc_param_workaround_bugs;
 286     avctx->error_recognition= lavc_param_error_resilience;
 287     if(lavc_param_gray) avctx->flags|= CODEC_FLAG_GRAY;
 288     avctx->flags2|= lavc_param_fast;
 289     avctx->codec_tag= sh->format;
 290     avctx->stream_codec_tag= sh->video.fccHandler;
 291     avctx->idct_algo= lavc_param_idct_algo;
 292     avctx->error_concealment= lavc_param_error_concealment;
 293     avctx->debug= lavc_param_debug;
 294     if (lavc_param_debug)
 295         av_log_set_level(AV_LOG_DEBUG);
 296     avctx->debug_mv= lavc_param_vismv;
 297     avctx->skip_top   = lavc_param_skip_top;
 298     avctx->skip_bottom= lavc_param_skip_bottom;
 299     if(lavc_param_lowres_str != NULL)
 300     {
 301         sscanf(lavc_param_lowres_str, "%d,%d", &lavc_param_lowres, &lowres_w);
 302         if(lavc_param_lowres < 1 || lavc_param_lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 303             lavc_param_lowres = 0;
 304         avctx->lowres = lavc_param_lowres;
 305     }
 306     avctx->skip_loop_filter = str2AVDiscard(lavc_param_skip_loop_filter_str);
 307     avctx->skip_idct = str2AVDiscard(lavc_param_skip_idct_str);
 308     avctx->skip_frame = str2AVDiscard(lavc_param_skip_frame_str);
 309
 310     if(lavc_avopt){
 311         if(parse_avopts(avctx, lavc_avopt) < 0){
 312             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_avopt);
 313             uninit(sh);
 314             return 0;
 315         }
 316     }
 317
 318     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 319     switch (sh->format) {
 320     case mmioFOURCC('S','V','Q','3'):
 321     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 322        in the phony AVI header if demux_lavf is used. The first case is
 323        handled here; the second case falls through to the next section. */
 324         if (sh->ImageDesc) {
 325             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 326             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 327             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 328             break;
 329         }
 330         /* fallthrough */
 331
 332     case mmioFOURCC('A','V','R','n'):
 333     case mmioFOURCC('M','J','P','G'):
 334     /* AVRn stores huffman table in AVI header */
 335     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 336        MJPG fourcc :( */
 337         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 338             break;
 339         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 340         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 341         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 342         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 343
 344 #if 0
 345         {
 346             int x;
 347             uint8_t *p = avctx->extradata;
 348
 349             for (x=0; x<avctx->extradata_size; x++)
 350                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 351             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 352         }
 353 #endif
 354         break;
 355
 356     case mmioFOURCC('R', 'V', '1', '0'):
 357     case mmioFOURCC('R', 'V', '1', '3'):
 358     case mmioFOURCC('R', 'V', '2', '0'):
 359     case mmioFOURCC('R', 'V', '3', '0'):
 360     case mmioFOURCC('R', 'V', '4', '0'):
 361         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 362             /* only 1 packet per frame & sub_id from fourcc */
 363             avctx->extradata_size= 8;
 364             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 365             ((uint32_t *)avctx->extradata)[0] = 0;
 366             ((uint32_t *)avctx->extradata)[1] =
 367                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 368         } else {
 369             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 370             avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 371             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 372             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 373         }
 374         avctx->sub_id= AV_RB32(avctx->extradata+4);
 375
 376 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 377         break;
 378
 379     default:
 380         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 381             break;
 382         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 383         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 384         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 385         break;
 386     }
 387     /* Pass palette to codec */
 388     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 389         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 390         avctx->palctrl->palette_changed = 1;
 391         if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
 392             /* Palette size in biSize */
 393             memcpy(avctx->palctrl->palette, sh->bih+1,
 394                    FFMIN(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
 395         else
 396             /* Palette size in biClrUsed */
 397             memcpy(avctx->palctrl->palette, sh->bih+1,
 398                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 399         }
 400
 401     if(sh->bih)
 402         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 403
 404     if(lavc_param_threads > 1)
 405         avcodec_thread_init(avctx, lavc_param_threads);
 406     /* open it */
 407     if (avcodec_open(avctx, lavc_codec) < 0) {
 408         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantOpenCodec);
 409         uninit(sh);
 410         return 0;
 411     }
 412     // this is necessary in case get_format was never called and init_vo is
 413     // too late e.g. for H.264 VDPAU
 414     set_format_params(avctx, avctx->pix_fmt);
 415     mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
 416     return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
 417 }
 418
 419 // uninit driver
 420 static void uninit(sh_video_t *sh){
 421     vd_ffmpeg_ctx *ctx = sh->context;
 422     AVCodecContext *avctx = ctx->avctx;
 423
 424     if(lavc_param_vstats){
 425         int i;
 426         for(i=1; i<32; i++){
 427             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 428         }
 429         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_ArithmeticMeanOfQP,
 430             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 431             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 432             );
 433     }
 434
 435     if (avctx) {
 436         if (avctx->codec && avcodec_close(avctx) < 0)
 437             mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantCloseCodec);
 438
 439         av_freep(&avctx->extradata);
 440         av_freep(&avctx->palctrl);
 441         av_freep(&avctx->slice_offset);
 442     }
 443
 444     av_freep(&avctx);
 445     av_freep(&ctx->pic);
 446     if (ctx)
 447         free(ctx);
 448 }
 449
 450 static void draw_slice(struct AVCodecContext *s,
 451                         AVFrame *src, int offset[4],
 452                         int y, int type, int height){
 453     sh_video_t *sh = s->opaque;
 454     uint8_t *source[MP_MAX_PLANES]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 455 #if 0
 456     int start=0, i;
 457     int width= s->width;
 458     int skip_stride= ((width<<lavc_param_lowres)+15)>>4;
 459     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 460     int threshold= s->coded_frame->age;
 461     if(s->pict_type!=B_TYPE){
 462         for(i=0; i*16<width+16; i++){
 463             if(i*16>=width || skip[i]>=threshold){
 464                 if(start==i) start++;
 465                 else{
 466                     uint8_t *src2[3]= {src[0] + start*16,
 467                                      src[1] + start*8,
 468                                      src[2] + start*8};
 469 //printf("%2d-%2d x %d\n", start, i, y);
 470                     mpcodecs_draw_slice (sh, src2, stride, (i-start)*16, height, start*16, y);
 471                     start= i+1;
 472                 }
 473             }
 474         }
 475     }else
 476 #endif
 477     if (y < sh->disp_h) {
 478         mpcodecs_draw_slice (sh, source, src->linesize, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
 479     }
 480 }
 481
 482
 483 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 484     vd_ffmpeg_ctx *ctx = sh->context;
 485     AVCodecContext *avctx = ctx->avctx;
 486     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 487     int width, height;
 488
 489     width = avctx->width;
 490     height = avctx->height;
 491
 492     // HACK!
 493     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 494     // use dimensions from BIH to avoid black borders at the right and bottom.
 495     if (sh->bih && sh->ImageDesc) {
 496         width = sh->bih->biWidth>>lavc_param_lowres;
 497         height = sh->bih->biHeight>>lavc_param_lowres;
 498     }
 499
 500      // it is possible another vo buffers to be used after vo config()
 501      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 502     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 503         width != sh->disp_w  ||
 504         height != sh->disp_h ||
 505         pix_fmt != ctx->pix_fmt ||
 506         !ctx->vo_initialized)
 507     {
 508         // this is a special-case HACK for MPEG-1/2 VDPAU that uses neither get_format nor
 509         // sets the value correctly in avcodec_open.
 510         set_format_params(avctx, avctx->pix_fmt);
 511         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 512         if (sh->aspect == 0 ||
 513             av_cmp_q(avctx->sample_aspect_ratio,
 514                      ctx->last_sample_aspect_ratio))
 515             sh->aspect = aspect;
 516         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 517         sh->disp_w = width;
 518         sh->disp_h = height;
 519         ctx->pix_fmt = pix_fmt;
 520         ctx->best_csp = pixfmt2imgfmt(pix_fmt);
 521         if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, ctx->best_csp))
 522             return -1;
 523         ctx->vo_initialized = 1;
 524     }
 525     return 0;
 526 }
 527
 528 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 529     sh_video_t *sh = avctx->opaque;
 530     vd_ffmpeg_ctx *ctx = sh->context;
 531     mp_image_t *mpi=NULL;
 532     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 533     int type= MP_IMGTYPE_IPB;
 534     int width= avctx->width;
 535     int height= avctx->height;
 536     int align=15;
 537 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 538     if(avctx->pix_fmt == PIX_FMT_YUV410P)
 539         align=63; //yes seriously, its really needed (16x16 chroma blocks in SVQ1 -> 64x64)
 540
 541     if (pic->buffer_hints) {
 542         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 543         type = MP_IMGTYPE_TEMP;
 544         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 545             flags |= MP_IMGFLAG_READABLE;
 546         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 547             type = MP_IMGTYPE_STATIC;
 548             flags |= MP_IMGFLAG_PRESERVE;
 549         }
 550         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 551             type = MP_IMGTYPE_STATIC;
 552             flags |= MP_IMGFLAG_PRESERVE;
 553         }
 554         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 555                  MP_IMGFLAG_DRAW_CALLBACK:0;
 556         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 557     } else {
 558         if(!pic->reference){
 559             ctx->b_count++;
 560             flags|=(!avctx->hurry_up && ctx->do_slices) ?
 561                      MP_IMGFLAG_DRAW_CALLBACK:0;
 562         }else{
 563             ctx->ip_count++;
 564             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 565                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 566         }
 567     }
 568
 569     if(init_vo(sh, avctx->pix_fmt) < 0){
 570         avctx->release_buffer= avcodec_default_release_buffer;
 571         avctx->get_buffer= avcodec_default_get_buffer;
 572         return avctx->get_buffer(avctx, pic);
 573     }
 574
 575     if (IMGFMT_IS_XVMC(ctx->best_csp) || IMGFMT_IS_VDPAU(ctx->best_csp)) {
 576         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 577     } else
 578     if (!pic->buffer_hints) {
 579         if(ctx->b_count>1 || ctx->ip_count>2){
 580             mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_DRIFailure);
 581
 582             ctx->do_dr1=0; //FIXME
 583             avctx->get_buffer= avcodec_default_get_buffer;
 584             return avctx->get_buffer(avctx, pic);
 585         }
 586
 587         if(avctx->has_b_frames){
 588             type= MP_IMGTYPE_IPB;
 589         }else{
 590             type= MP_IMGTYPE_IP;
 591         }
 592         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 593     }
 594
 595     mpi= mpcodecs_get_image(sh, type, flags,
 596                         (width+align)&(~align), (height+align)&(~align));
 597     if (!mpi) return -1;
 598
 599     // ok, let's see what did we get:
 600     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 601        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 602         // nice, filter/vo likes draw_callback :)
 603         avctx->draw_horiz_band= draw_slice;
 604     } else
 605         avctx->draw_horiz_band= NULL;
 606     if(IMGFMT_IS_VDPAU(mpi->imgfmt)) {
 607         avctx->draw_horiz_band= draw_slice;
 608     }
 609 #if CONFIG_XVMC
 610     if(IMGFMT_IS_XVMC(mpi->imgfmt)) {
 611         struct xvmc_pix_fmt *render = mpi->priv; //same as data[2]
 612         avctx->draw_horiz_band= draw_slice;
 613         if(!avctx->xvmc_acceleration) {
 614             mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_McGetBufferShouldWorkOnlyWithXVMC);
 615             assert(0);
 616             exit(1);
 617 //            return -1;//!!fixme check error conditions in ffmpeg
 618         }
 619         if(!(mpi->flags & MP_IMGFLAG_DIRECT)) {
 620             mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MPCODECS_OnlyBuffersAllocatedByVoXvmcAllowed);
 621             assert(0);
 622             exit(1);
 623 //            return -1;//!!fixme check error conditions in ffmpeg
 624         }
 625         if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 626             mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::get_buffer (xvmc render=%p)\n", render);
 627         assert(render != 0);
 628         assert(render->xvmc_id == AV_XVMC_ID);
 629         render->state |= AV_XVMC_STATE_PREDICTION;
 630     }
 631 #endif
 632
 633     // Palette support: libavcodec copies palette to *data[1]
 634     if (mpi->bpp == 8)
 635         mpi->planes[1] = av_malloc(AVPALETTE_SIZE);
 636
 637     pic->data[0]= mpi->planes[0];
 638     pic->data[1]= mpi->planes[1];
 639     pic->data[2]= mpi->planes[2];
 640
 641 #if 0
 642     assert(mpi->width >= ((width +align)&(~align)));
 643     assert(mpi->height >= ((height+align)&(~align)));
 644     assert(mpi->stride[0] >= mpi->width);
 645     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 646         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 647         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 648
 649         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 650         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 651         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 652         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 653         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 654         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 655     }
 656 #endif
 657
 658     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 659      * lavc will check that and die with an error message, if its not true
 660      */
 661     pic->linesize[0]= mpi->stride[0];
 662     pic->linesize[1]= mpi->stride[1];
 663     pic->linesize[2]= mpi->stride[2];
 664
 665     pic->opaque = mpi;
 666 //printf("%X\n", (int)mpi->planes[0]);
 667 #if 0
 668 if(mpi->flags&MP_IMGFLAG_DIRECT)
 669     printf("D");
 670 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 671     printf("S");
 672 else
 673     printf(".");
 674 #endif
 675     if(pic->reference){
 676         pic->age= ctx->ip_age[0];
 677
 678         ctx->ip_age[0]= ctx->ip_age[1]+1;
 679         ctx->ip_age[1]= 1;
 680         ctx->b_age++;
 681     }else{
 682         pic->age= ctx->b_age;
 683
 684         ctx->ip_age[0]++;
 685         ctx->ip_age[1]++;
 686         ctx->b_age=1;
 687     }
 688     pic->type= FF_BUFFER_TYPE_USER;
 689     return 0;
 690 }
 691
 692 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 693     mp_image_t *mpi= pic->opaque;
 694     sh_video_t *sh = avctx->opaque;
 695     vd_ffmpeg_ctx *ctx = sh->context;
 696     int i;
 697
 698 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 699
 700     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 701         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 702             ctx->ip_count--;
 703         else
 704             ctx->b_count--;
 705     }
 706
 707     if (mpi) {
 708         // Palette support: free palette buffer allocated in get_buffer
 709         if (mpi->bpp == 8)
 710             av_freep(&mpi->planes[1]);
 711 #if CONFIG_XVMC
 712         if (IMGFMT_IS_XVMC(mpi->imgfmt)) {
 713             struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)pic->data[2]; //same as mpi->priv
 714             if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 715                 mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::release_buffer (xvmc render=%p)\n", render);
 716             assert(render!=NULL);
 717             assert(render->xvmc_id == AV_XVMC_ID);
 718             render->state&=~AV_XVMC_STATE_PREDICTION;
 719         }
 720 #endif
 721         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 722         mpi->usage_count--;
 723     }
 724
 725     if(pic->type!=FF_BUFFER_TYPE_USER){
 726         avcodec_default_release_buffer(avctx, pic);
 727         return;
 728     }
 729
 730     for(i=0; i<4; i++){
 731         pic->data[i]= NULL;
 732     }
 733 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 734 }
 735
 736 // copypaste from demux_real.c - it should match to get it working!
 737 //FIXME put into some header
 738 typedef struct dp_hdr_s {
 739     uint32_t chunks;        // number of chunks
 740     uint32_t timestamp; // timestamp from packet header
 741     uint32_t len;        // length of actual data
 742     uint32_t chunktab;        // offset to chunk offset array
 743 } dp_hdr_t;
 744
 745 void swap_palette(void *pal) {
 746     int i;
 747     uint32_t *p = pal;
 748     for (i = 0; i < AVPALETTE_COUNT; i++)
 749         p[i] = le2me_32(p[i]);
 750 }
 751
 752 // decode a frame
 753 static mp_image_t *decode(sh_video_t *sh, void *data, int len, int flags){
 754     int got_picture=0;
 755     int ret;
 756     vd_ffmpeg_ctx *ctx = sh->context;
 757     AVFrame *pic= ctx->pic;
 758     AVCodecContext *avctx = ctx->avctx;
 759     mp_image_t *mpi=NULL;
 760     int dr1= ctx->do_dr1;
 761     AVPacket pkt;
 762
 763     if(len<=0) return NULL; // skipped frame
 764
 765 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 766     if (!dr1)
 767     avctx->draw_horiz_band=NULL;
 768     if(ctx->vo_initialized && !(flags&3) && !dr1){
 769         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 770             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 771             sh->disp_w, sh->disp_h);
 772         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 773             // vd core likes slices!
 774             avctx->draw_horiz_band=draw_slice;
 775         }
 776     }
 777
 778     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 779
 780     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 781            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 782     av_init_packet(&pkt);
 783     pkt.data = data;
 784     pkt.size = len;
 785     // HACK: make PNGs decode normally instead of as CorePNG delta frames
 786     pkt.flags = PKT_FLAG_KEY;
 787     ret = avcodec_decode_video2(avctx, pic, &got_picture, &pkt);
 788
 789     dr1= ctx->do_dr1;
 790     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 791 //printf("repeat: %d\n", pic->repeat_pict);
 792 //-- vstats generation
 793     while(lavc_param_vstats){ // always one time loop
 794         static FILE *fvstats=NULL;
 795         char filename[20];
 796         static long long int all_len=0;
 797         static int frame_number=0;
 798         static double all_frametime=0.0;
 799         AVFrame *pic= avctx->coded_frame;
 800         double quality=0.0;
 801
 802         if(!fvstats) {
 803             time_t today2;
 804             struct tm *today;
 805             today2 = time(NULL);
 806             today = localtime(&today2);
 807             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 808                 today->tm_min, today->tm_sec);
 809             fvstats = fopen(filename, "w");
 810             if(!fvstats) {
 811                 perror("fopen");
 812                 lavc_param_vstats=0; // disable block
 813                 break;
 814                 /*exit(1);*/
 815             }
 816         }
 817
 818         // average MB quantizer
 819         {
 820             int x, y;
 821             int w = ((avctx->width  << lavc_param_lowres)+15) >> 4;
 822             int h = ((avctx->height << lavc_param_lowres)+15) >> 4;
 823             int8_t *q = pic->qscale_table;
 824             for(y = 0; y < h; y++) {
 825                 for(x = 0; x < w; x++)
 826                     quality += (double)*(q+x);
 827                 q += pic->qstride;
 828             }
 829             quality /= w * h;
 830         }
 831
 832         all_len+=len;
 833         all_frametime+=sh->frametime;
 834         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 835             ++frame_number, quality, len, (double)all_len/1024);
 836         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 837            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 838            (double)(all_len*8)/all_frametime/1000.0);
 839         switch(pic->pict_type){
 840         case FF_I_TYPE:
 841             fprintf(fvstats, "type= I\n");
 842             break;
 843         case FF_P_TYPE:
 844             fprintf(fvstats, "type= P\n");
 845             break;
 846         case FF_S_TYPE:
 847             fprintf(fvstats, "type= S\n");
 848             break;
 849         case FF_B_TYPE:
 850             fprintf(fvstats, "type= B\n");
 851             break;
 852         default:
 853             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 854             break;
 855         }
 856
 857         ctx->qp_stat[(int)(quality+0.5)]++;
 858         ctx->qp_sum += quality;
 859         ctx->inv_qp_sum += 1.0/(double)quality;
 860
 861         break;
 862     }
 863 //--
 864
 865     if(!got_picture) return NULL;        // skipped image
 866
 867     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 868
 869     if(dr1 && pic->opaque){
 870         mpi= (mp_image_t *)pic->opaque;
 871     }
 872
 873     if(!mpi)
 874     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 875         avctx->width, avctx->height);
 876     if(!mpi){        // temporary!
 877         mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_CouldntAllocateImageForCodec);
 878         return NULL;
 879     }
 880
 881     if(!dr1){
 882         mpi->planes[0]=pic->data[0];
 883         mpi->planes[1]=pic->data[1];
 884         mpi->planes[2]=pic->data[2];
 885         mpi->stride[0]=pic->linesize[0];
 886         mpi->stride[1]=pic->linesize[1];
 887         mpi->stride[2]=pic->linesize[2];
 888     }
 889
 890     if (!mpi->planes[0])
 891         return NULL;
 892
 893     if(avctx->pix_fmt==PIX_FMT_YUV422P && 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 #ifdef WORDS_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 #if CONFIG_XVMC || CONFIG_VDPAU
 918 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 919                                     const enum PixelFormat *fmt){
 920     enum PixelFormat selected_format;
 921     int imgfmt;
 922     sh_video_t *sh = avctx->opaque;
 923     int i;
 924
 925     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 926         imgfmt = pixfmt2imgfmt(fmt[i]);
 927         if(!IMGFMT_IS_XVMC(imgfmt) && !IMGFMT_IS_VDPAU(imgfmt)) continue;
 928         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_TryingPixfmt, i);
 929         if(init_vo(sh, fmt[i]) >= 0) {
 930             break;
 931         }
 932     }
 933     selected_format = fmt[i];
 934     set_format_params(avctx, selected_format);
 935     return selected_format;
 936 }
 937 #endif /* CONFIG_XVMC || CONFIG_VDPAU */