libmpcodecs/vd_ffmpeg.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <assert.h>
   4 #include <time.h>
   5 #include <stdbool.h>
   6
   7 #include "config.h"
   8 #include "mp_msg.h"
   9 #include "help_mp.h"
  10 #include "options.h"
  11 #include "av_opts.h"
  12
  13 #include "libavutil/common.h"
  14 #include "ffmpeg_files/intreadwrite.h"
  15 #include "mpbswap.h"
  16 #include "fmt-conversion.h"
  17
  18 #include "vd.h"
  19 #include "img_format.h"
  20 #include "libmpdemux/stheader.h"
  21 #include "codec-cfg.h"
  22
  23 static const vd_info_t info = {
  24     "FFmpeg's libavcodec codec family",
  25     "ffmpeg",
  26     "A'rpi",
  27     "A'rpi, Michael, Alex",
  28     "native codecs"
  29 };
  30
  31 #include "libavcodec/avcodec.h"
  32
  33 #if defined(__LINUX__) && defined(CONFIG_THREAD)
  34 #include <sched.h>
  35 #elif defined(__BEOS__)
  36 #include <kernel/OS.h>
  37 #elif defined(__MACH__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
  38 #include <sys/types.h>
  39 #include <sys/sysctl.h>
  40 #elif defined(__OpenBSD__)
  41 #include <sys/param.h>
  42 #include <sys/sysctl.h>
  43 #include <machine/cpu.h>
  44 #endif
  45
  46 #if AVPALETTE_SIZE > 1024
  47 #error palette too large, adapt libmpcodecs/vf.c:vf_get_image
  48 #endif
  49
  50 #if CONFIG_XVMC
  51 #include "libavcodec/xvmc.h"
  52 #endif
  53
  54 int avcodec_initialized=0;
  55
  56 typedef struct {
  57     AVCodecContext *avctx;
  58     AVFrame *pic;
  59     enum PixelFormat pix_fmt;
  60     int do_slices;
  61     int do_dr1;
  62     int vo_initialized;
  63     int best_csp;
  64     int b_age;
  65     int ip_age[2];
  66     int qp_stat[32];
  67     double qp_sum;
  68     double inv_qp_sum;
  69     int ip_count;
  70     int b_count;
  71     AVRational last_sample_aspect_ratio;
  72     int lowres;
  73 } vd_ffmpeg_ctx;
  74
  75 #include "m_option.h"
  76
  77 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  78 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  79 static void draw_slice(struct AVCodecContext *s, const AVFrame *src,
  80                        int offset[4], int y, int type, int height);
  81
  82 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  83                                    const enum PixelFormat *pix_fmt);
  84 static void uninit(struct sh_video *sh);
  85
  86 const m_option_t lavc_decode_opts_conf[]={
  87     OPT_INTRANGE("bug", lavc_param.workaround_bugs, 0, -1, 999999),
  88     OPT_INTRANGE("er", lavc_param.error_resilience, 0, 0, 99),
  89     OPT_FLAG_ON("gray", lavc_param.gray, 0),
  90     OPT_INTRANGE("idct", lavc_param.idct_algo, 0, 0, 99),
  91     OPT_INTRANGE("ec", lavc_param.error_concealment, 0, 0, 99),
  92     OPT_FLAG_ON("vstats", lavc_param.vstats, 0),
  93     OPT_INTRANGE("debug", lavc_param.debug, 0, 0, 9999999),
  94     OPT_INTRANGE("vismv", lavc_param.vismv, 0, 0, 9999999),
  95     OPT_INTRANGE("st", lavc_param.skip_top, 0, 0, 999),
  96     OPT_INTRANGE("sb", lavc_param.skip_bottom, 0, 0, 999),
  97     OPT_FLAG_CONSTANTS("fast", lavc_param.fast, 0, 0, CODEC_FLAG2_FAST),
  98     OPT_FLAG_CONSTANTS("h264fast", lavc_param.h264fast, 0, 0, 1), // Automatically enables "fast" if the codec is H.264
  99     OPT_STRING("lowres", lavc_param.lowres_str, 0),
 100     OPT_STRING("skiploopfilter", lavc_param.skip_loop_filter_str, 0),
 101     OPT_STRING("skipidct", lavc_param.skip_idct_str, 0),
 102     OPT_STRING("skipframe", lavc_param.skip_frame_str, 0),
 103     OPT_INTRANGE("threads", lavc_param.threads, 0, 0, 8),
 104     OPT_FLAG_CONSTANTS("bitexact", lavc_param.bitexact, 0, 0, CODEC_FLAG_BITEXACT),
 105     OPT_STRING("o", lavc_param.avopt, 0),
 106     {NULL, NULL, 0, 0, 0, 0, NULL}
 107 };
 108
 109 static enum AVDiscard str2AVDiscard(char *str) {
 110     if (!str)                               return AVDISCARD_DEFAULT;
 111     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
 112     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
 113     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
 114     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
 115     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
 116     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
 117     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
 118     return AVDISCARD_DEFAULT;
 119 }
 120
 121 // to set/get/query special features/parameters
 122 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 123     vd_ffmpeg_ctx *ctx = sh->context;
 124     AVCodecContext *avctx = ctx->avctx;
 125     switch(cmd){
 126     case VDCTRL_QUERY_FORMAT:
 127     {
 128         int format =(*((int *)arg));
 129         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 130         // possible conversions:
 131         switch(format){
 132         case IMGFMT_YV12:
 133         case IMGFMT_IYUV:
 134         case IMGFMT_I420:
 135             // "converted" using pointer/stride modification
 136             if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
 137             if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 138             break;
 139 #if CONFIG_XVMC
 140         case IMGFMT_XVMC_IDCT_MPEG2:
 141         case IMGFMT_XVMC_MOCO_MPEG2:
 142             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 143 #endif
 144         }
 145         return CONTROL_FALSE;
 146     }
 147     case VDCTRL_RESYNC_STREAM:
 148         avcodec_flush_buffers(avctx);
 149         return CONTROL_TRUE;
 150     case VDCTRL_QUERY_UNSEEN_FRAMES:;
 151         int delay = avctx->has_b_frames;
 152 #if defined(FF_THREAD_FRAME) && LIBAVCODEC_VERSION_MAJOR <= 52 && LIBAVCODEC_VERSION_MINOR < 49
 153         // FFmpeg-mt has extra delay when using frame threading
 154         // In newer versions that is included in has_b_frames
 155         if (avctx->thread_type & FF_THREAD_FRAME)
 156             delay += avctx->thread_count - 1;
 157 #endif
 158         return delay + 10;
 159     }
 160     return CONTROL_UNKNOWN;
 161 }
 162
 163 // init driver
 164 static int init(sh_video_t *sh){
 165     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 166     AVCodecContext *avctx;
 167     vd_ffmpeg_ctx *ctx;
 168     AVCodec *lavc_codec;
 169     int lowres_w=0;
 170     int do_vis_debug= lavc_param->vismv || (lavc_param->debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 171
 172     if(!avcodec_initialized){
 173         avcodec_init();
 174         avcodec_register_all();
 175         avcodec_initialized=1;
 176     }
 177
 178     ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
 179     if (!ctx)
 180         return 0;
 181     memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
 182
 183     lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
 184     if(!lavc_codec){
 185         mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Cannot find codec '%s' in libavcodec...\n", sh->codec->dll);
 186         uninit(sh);
 187         return 0;
 188     }
 189
 190     if(sh->opts->vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 191         ctx->do_slices=1;
 192
 193     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)
 194         ctx->do_dr1=1;
 195     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 196     ctx->ip_count= ctx->b_count= 0;
 197
 198     ctx->pic = avcodec_alloc_frame();
 199     ctx->avctx = avcodec_alloc_context();
 200     avctx = ctx->avctx;
 201     avctx->opaque = sh;
 202     avctx->codec_type = CODEC_TYPE_VIDEO;
 203     avctx->codec_id = lavc_codec->id;
 204
 205     if (lavc_codec->capabilities & CODEC_CAP_HWACCEL   // XvMC
 206         || lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) {
 207         ctx->do_dr1    = true;
 208         ctx->do_slices = true;
 209         lavc_param->threads    = 1;
 210         avctx->get_format      = get_format;
 211         avctx->get_buffer      = get_buffer;
 212         avctx->release_buffer  = release_buffer;
 213         avctx->reget_buffer    = get_buffer;
 214         avctx->draw_horiz_band = draw_slice;
 215         if (lavc_codec->capabilities & CODEC_CAP_HWACCEL)
 216             mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] XVMC-accelerated "
 217                    "MPEG-2.\n");
 218         if (lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
 219             mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] VDPAU hardware "
 220                    "decoding.\n");
 221         avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 222     }
 223
 224     if ( lavc_param->threads == 0 ) {
 225 #if defined(__WIN32__)
 226         lavc_param->threads = pthread_num_processors_np();
 227 #elif defined(__LINUX__)
 228         unsigned int bit;
 229         int np;
 230         cpu_set_t p_aff;
 231         memset( &p_aff, 0, sizeof(p_aff) );
 232         sched_getaffinity( 0, sizeof(p_aff), &p_aff );
 233         for( np = 0, bit = 0; bit < sizeof(p_aff); bit++ )
 234             np += (((uint8_t *)&p_aff)[bit / 8] >> (bit % 8)) & 1;
 235
 236         lavc_param->threads = np;
 237 #elif defined(__BEOS__)
 238         system_info info;
 239         get_system_info( &info );
 240         lavc_param->threads = info.cpu_count;
 241
 242 #elif defined(__MACH__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__)
 243         int numberOfCPUs;
 244         size_t length = sizeof( numberOfCPUs );
 245 #ifdef __OpenBSD__
 246         int mib[2] = { CTL_HW, HW_NCPU };
 247         if( sysctl(mib, 2, &numberOfCPUs, &length, NULL, 0) )
 248 #else
 249         if( sysctlbyname("hw.ncpu", &numberOfCPUs, &length, NULL, 0) )
 250 #endif
 251         {
 252              numberOfCPUs = 1;
 253         }
 254         lavc_param->threads = numberOfCPUs;
 255 #else /* No CPU detection routine available */
 256         lavc_param->threads = 1;
 257 #endif
 258     }
 259
 260     if ( lavc_codec->id == CODEC_ID_MPEG4 ) { /* Run away from packed b-frames (It is now blocked by ffmpeg-mt itself but show the warning anyway) */
 261         mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Multithreading is broken on MPEG-4 ASP, forcing only 1 thread.\n");
 262         lavc_param->threads = 1;
 263     } else if ( lavc_codec->id == CODEC_ID_VP3 || lavc_codec->id == CODEC_ID_THEORA ) {
 264         mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Multithreading is broken on Theora, forcing only 1 thread.\n");
 265         lavc_param->threads = 1;
 266     } else {
 267         mp_msg(MSGT_DECVIDEO, MSGL_INFO, "Using %d decoding thread%s.\n",
 268                         lavc_param->threads, lavc_param->threads == 1 ? "" : "s");
 269     }
 270
 271     /* Our get_buffer and draw_horiz_band callbacks are not safe to call
 272      * from other threads. */
 273     if (lavc_param->threads > 1) {
 274         ctx->do_dr1 = false;
 275         ctx->do_slices = false;
 276     }
 277
 278     if(ctx->do_dr1){
 279         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 280         avctx->get_buffer= get_buffer;
 281         avctx->release_buffer= release_buffer;
 282         avctx->reget_buffer= get_buffer;
 283     }
 284
 285     avctx->flags|= lavc_param->bitexact;
 286
 287     avctx->width = sh->disp_w;
 288     avctx->height= sh->disp_h;
 289     avctx->workaround_bugs= lavc_param->workaround_bugs;
 290     avctx->error_recognition= lavc_param->error_resilience;
 291     if(lavc_param->gray) avctx->flags|= CODEC_FLAG_GRAY;
 292     if(lavc_param->h264fast && lavc_codec->id == CODEC_ID_H264)
 293         avctx->flags2|= CODEC_FLAG2_FAST;
 294     else
 295         avctx->flags2|= lavc_param->fast;
 296     avctx->codec_tag= sh->format;
 297     avctx->stream_codec_tag= sh->video.fccHandler;
 298     avctx->idct_algo= lavc_param->idct_algo;
 299     avctx->error_concealment= lavc_param->error_concealment;
 300     avctx->debug= lavc_param->debug;
 301     if (lavc_param->debug)
 302         av_log_set_level(AV_LOG_DEBUG);
 303     avctx->debug_mv= lavc_param->vismv;
 304     avctx->skip_top   = lavc_param->skip_top;
 305     avctx->skip_bottom= lavc_param->skip_bottom;
 306     if(lavc_param->lowres_str != NULL)
 307     {
 308         sscanf(lavc_param->lowres_str, "%d,%d", &ctx->lowres, &lowres_w);
 309         if(ctx->lowres < 1 || ctx->lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 310             ctx->lowres = 0;
 311         avctx->lowres = ctx->lowres;
 312     }
 313     avctx->skip_loop_filter = str2AVDiscard(lavc_param->skip_loop_filter_str);
 314     avctx->skip_idct = str2AVDiscard(lavc_param->skip_idct_str);
 315     avctx->skip_frame = str2AVDiscard(lavc_param->skip_frame_str);
 316
 317     if(lavc_param->avopt){
 318         if(parse_avopts(avctx, lavc_param->avopt) < 0){
 319             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_param->avopt);
 320             uninit(sh);
 321             return 0;
 322         }
 323     }
 324
 325     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 326     switch (sh->format) {
 327     case mmioFOURCC('S','V','Q','3'):
 328     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 329        in the phony AVI header if demux_lavf is used. The first case is
 330        handled here; the second case falls through to the next section. */
 331         if (sh->ImageDesc) {
 332             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 333             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 334             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 335             break;
 336         }
 337         /* fallthrough */
 338
 339     case mmioFOURCC('A','V','R','n'):
 340     case mmioFOURCC('M','J','P','G'):
 341     /* AVRn stores huffman table in AVI header */
 342     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 343        MJPG fourcc :( */
 344         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 345             break;
 346         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 347         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 348         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 349         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 350
 351 #if 0
 352         {
 353             int x;
 354             uint8_t *p = avctx->extradata;
 355
 356             for (x=0; x<avctx->extradata_size; x++)
 357                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 358             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 359         }
 360 #endif
 361         break;
 362
 363     case mmioFOURCC('R', 'V', '1', '0'):
 364     case mmioFOURCC('R', 'V', '1', '3'):
 365     case mmioFOURCC('R', 'V', '2', '0'):
 366     case mmioFOURCC('R', 'V', '3', '0'):
 367     case mmioFOURCC('R', 'V', '4', '0'):
 368         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 369             /* only 1 packet per frame & sub_id from fourcc */
 370             avctx->extradata_size= 8;
 371             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 372             ((uint32_t *)avctx->extradata)[0] = 0;
 373             ((uint32_t *)avctx->extradata)[1] =
 374                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 375         } else {
 376             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 377             avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 378             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 379             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 380         }
 381         avctx->sub_id= AV_RB32(avctx->extradata+4);
 382
 383 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 384         break;
 385
 386     default:
 387         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 388             break;
 389         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 390         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 391         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 392         break;
 393     }
 394     /* Pass palette to codec */
 395     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 396         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 397         avctx->palctrl->palette_changed = 1;
 398         if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
 399             /* Palette size in biSize */
 400             memcpy(avctx->palctrl->palette, sh->bih+1,
 401                    FFMIN(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
 402         else
 403             /* Palette size in biClrUsed */
 404             memcpy(avctx->palctrl->palette, sh->bih+1,
 405                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 406         }
 407
 408     if(sh->bih)
 409         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 410
 411     if(lavc_param->threads > 1) {
 412         avcodec_thread_init(avctx, lavc_param->threads);
 413             mp_msg(MSGT_DECVIDEO, MSGL_WARN, "WARNING: Multithreading is experimental and may break in weird ways.\n");
 414         }
 415     /* open it */
 416     if (avcodec_open(avctx, lavc_codec) < 0) {
 417         mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not open codec.\n");
 418         uninit(sh);
 419         return 0;
 420     }
 421     mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
 422     return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
 423 }
 424
 425 // uninit driver
 426 static void uninit(sh_video_t *sh){
 427     vd_ffmpeg_ctx *ctx = sh->context;
 428     AVCodecContext *avctx = ctx->avctx;
 429
 430     if(sh->opts->lavc_param.vstats){
 431         int i;
 432         for(i=1; i<32; i++){
 433             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 434         }
 435         mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] Arithmetic mean of QP: %2.4f, Harmonic mean of QP: %2.4f\n",
 436             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 437             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 438             );
 439     }
 440
 441     if (avctx) {
 442         if (avctx->codec && avcodec_close(avctx) < 0)
 443             mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not close codec.\n");
 444
 445         av_freep(&avctx->extradata);
 446         av_freep(&avctx->palctrl);
 447         av_freep(&avctx->slice_offset);
 448     }
 449
 450     av_freep(&avctx);
 451     av_freep(&ctx->pic);
 452     if (ctx)
 453         free(ctx);
 454 }
 455
 456 static void draw_slice(struct AVCodecContext *s,
 457                        const AVFrame *src, int offset[4],
 458                        int y, int type, int height){
 459     sh_video_t *sh = s->opaque;
 460     uint8_t *source[MP_MAX_PLANES]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 461 #if 0
 462     int start=0, i;
 463     int width= s->width;
 464     vd_ffmpeg_ctx *ctx = sh->context;
 465     int skip_stride= ((width << ctx->lowres)+15)>>4;
 466     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 467     int threshold= s->coded_frame->age;
 468     if(s->pict_type!=B_TYPE){
 469         for(i=0; i*16<width+16; i++){
 470             if(i*16>=width || skip[i]>=threshold){
 471                 if(start==i) start++;
 472                 else{
 473                     uint8_t *src2[3]= {src[0] + start*16,
 474                                      src[1] + start*8,
 475                                      src[2] + start*8};
 476 //printf("%2d-%2d x %d\n", start, i, y);
 477                     mpcodecs_draw_slice (sh, src2, stride, (i-start)*16, height, start*16, y);
 478                     start= i+1;
 479                 }
 480             }
 481         }
 482     }else
 483 #endif
 484     if (y < sh->disp_h) {
 485         mpcodecs_draw_slice (sh, source, src->linesize, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
 486     }
 487 }
 488
 489
 490 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 491     vd_ffmpeg_ctx *ctx = sh->context;
 492     AVCodecContext *avctx = ctx->avctx;
 493     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 494     int width, height;
 495
 496     width = avctx->width;
 497     height = avctx->height;
 498
 499     // HACK!
 500     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 501     // use dimensions from BIH to avoid black borders at the right and bottom.
 502     if (sh->bih && sh->ImageDesc) {
 503         width = sh->bih->biWidth >> ctx->lowres;
 504         height = sh->bih->biHeight >> ctx->lowres;
 505     }
 506
 507      // it is possible another vo buffers to be used after vo config()
 508      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 509     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 510         width != sh->disp_w  ||
 511         height != sh->disp_h ||
 512         pix_fmt != ctx->pix_fmt ||
 513         !ctx->vo_initialized)
 514     {
 515         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 516         if (sh->aspect == 0 ||
 517             av_cmp_q(avctx->sample_aspect_ratio,
 518                      ctx->last_sample_aspect_ratio))
 519             sh->aspect = aspect;
 520         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 521         sh->disp_w = width;
 522         sh->disp_h = height;
 523         ctx->pix_fmt = pix_fmt;
 524         ctx->best_csp = pixfmt2imgfmt(pix_fmt);
 525         if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, ctx->best_csp))
 526             return -1;
 527         ctx->vo_initialized = 1;
 528     }
 529     return 0;
 530 }
 531
 532 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 533     sh_video_t *sh = avctx->opaque;
 534     vd_ffmpeg_ctx *ctx = sh->context;
 535     mp_image_t *mpi=NULL;
 536     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 537     int type= MP_IMGTYPE_IPB;
 538     int width= avctx->width;
 539     int height= avctx->height;
 540     avcodec_align_dimensions(avctx, &width, &height);
 541 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 542
 543     if (pic->buffer_hints) {
 544         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 545         type = MP_IMGTYPE_TEMP;
 546         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 547             flags |= MP_IMGFLAG_READABLE;
 548         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 549             type = MP_IMGTYPE_STATIC;
 550             flags |= MP_IMGFLAG_PRESERVE;
 551         }
 552         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 553             type = MP_IMGTYPE_STATIC;
 554             flags |= MP_IMGFLAG_PRESERVE;
 555         }
 556         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 557                  MP_IMGFLAG_DRAW_CALLBACK:0;
 558         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 559     } else {
 560         if(!pic->reference){
 561             ctx->b_count++;
 562             flags|=(!avctx->hurry_up && ctx->do_slices) ?
 563                      MP_IMGFLAG_DRAW_CALLBACK:0;
 564         }else{
 565             ctx->ip_count++;
 566             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 567                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 568         }
 569     }
 570
 571     if(init_vo(sh, avctx->pix_fmt) < 0){
 572         avctx->release_buffer= avcodec_default_release_buffer;
 573         avctx->get_buffer= avcodec_default_get_buffer;
 574         return avctx->get_buffer(avctx, pic);
 575     }
 576
 577     if (IMGFMT_IS_XVMC(ctx->best_csp) || IMGFMT_IS_VDPAU(ctx->best_csp)) {
 578         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 579     } else
 580     if (!pic->buffer_hints) {
 581         if(ctx->b_count>1 || ctx->ip_count>2){
 582             mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] DRI failure.\n");
 583
 584             ctx->do_dr1=0; //FIXME
 585             avctx->get_buffer= avcodec_default_get_buffer;
 586             return avctx->get_buffer(avctx, pic);
 587         }
 588
 589         if(avctx->has_b_frames){
 590             type= MP_IMGTYPE_IPB;
 591         }else{
 592             type= MP_IMGTYPE_IP;
 593         }
 594         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 595     }
 596
 597     if (ctx->best_csp == IMGFMT_RGB8 || ctx->best_csp == IMGFMT_BGR8)
 598         flags |= MP_IMGFLAG_RGB_PALETTE;
 599     mpi= mpcodecs_get_image(sh, type, flags, width, height);
 600     if (!mpi) return -1;
 601
 602     // ok, let's see what did we get:
 603     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 604        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 605         // nice, filter/vo likes draw_callback :)
 606         avctx->draw_horiz_band= draw_slice;
 607     } else
 608         avctx->draw_horiz_band= NULL;
 609     if(IMGFMT_IS_VDPAU(mpi->imgfmt)) {
 610         avctx->draw_horiz_band= draw_slice;
 611     }
 612 #if CONFIG_XVMC
 613     if(IMGFMT_IS_XVMC(mpi->imgfmt)) {
 614         struct xvmc_pix_fmt *render = mpi->priv; //same as data[2]
 615         avctx->draw_horiz_band= draw_slice;
 616         if(!avctx->xvmc_acceleration) {
 617             mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] The mc_get_buffer should work only with XVMC acceleration!!");
 618             assert(0);
 619             exit(1);
 620 //            return -1;//!!fixme check error conditions in ffmpeg
 621         }
 622         if(!(mpi->flags & MP_IMGFLAG_DIRECT)) {
 623             mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "[VD_FFMPEG] Only buffers allocated by vo_xvmc allowed.\n");
 624             assert(0);
 625             exit(1);
 626 //            return -1;//!!fixme check error conditions in ffmpeg
 627         }
 628         if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 629             mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::get_buffer (xvmc render=%p)\n", render);
 630         assert(render != 0);
 631         assert(render->xvmc_id == AV_XVMC_ID);
 632         render->state |= AV_XVMC_STATE_PREDICTION;
 633     }
 634 #endif
 635
 636     pic->data[0]= mpi->planes[0];
 637     pic->data[1]= mpi->planes[1];
 638     pic->data[2]= mpi->planes[2];
 639     pic->data[3]= mpi->planes[3];
 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     pic->linesize[3]= mpi->stride[3];
 665
 666     pic->opaque = mpi;
 667 //printf("%X\n", (int)mpi->planes[0]);
 668 #if 0
 669 if(mpi->flags&MP_IMGFLAG_DIRECT)
 670     printf("D");
 671 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 672     printf("S");
 673 else
 674     printf(".");
 675 #endif
 676     if(pic->reference){
 677         pic->age= ctx->ip_age[0];
 678
 679         ctx->ip_age[0]= ctx->ip_age[1]+1;
 680         ctx->ip_age[1]= 1;
 681         ctx->b_age++;
 682     }else{
 683         pic->age= ctx->b_age;
 684
 685         ctx->ip_age[0]++;
 686         ctx->ip_age[1]++;
 687         ctx->b_age=1;
 688     }
 689     pic->type= FF_BUFFER_TYPE_USER;
 690
 691     /* The libavcodec reordered_opaque functionality is implemented by
 692      * a similar copy in avcodec_default_get_buffer() and without a
 693      * workaround like this it'd stop working when a custom buffer
 694      * callback is used.
 695      */
 696     pic->reordered_opaque = avctx->reordered_opaque;
 697     return 0;
 698 }
 699
 700 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 701     mp_image_t *mpi= pic->opaque;
 702     sh_video_t *sh = avctx->opaque;
 703     vd_ffmpeg_ctx *ctx = sh->context;
 704     int i;
 705
 706 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 707
 708     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 709         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 710             ctx->ip_count--;
 711         else
 712             ctx->b_count--;
 713     }
 714
 715     if (mpi) {
 716         // Palette support: free palette buffer allocated in get_buffer
 717         if (mpi->bpp == 8)
 718             av_freep(&mpi->planes[1]);
 719 #if CONFIG_XVMC
 720         if (IMGFMT_IS_XVMC(mpi->imgfmt)) {
 721             struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)pic->data[2]; //same as mpi->priv
 722             if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 723                 mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::release_buffer (xvmc render=%p)\n", render);
 724             assert(render!=NULL);
 725             assert(render->xvmc_id == AV_XVMC_ID);
 726             render->state&=~AV_XVMC_STATE_PREDICTION;
 727         }
 728 #endif
 729         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 730         mpi->usage_count--;
 731     }
 732
 733     if(pic->type!=FF_BUFFER_TYPE_USER){
 734         avcodec_default_release_buffer(avctx, pic);
 735         return;
 736     }
 737
 738     for(i=0; i<4; i++){
 739         pic->data[i]= NULL;
 740     }
 741 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 742 }
 743
 744 // copypaste from demux_real.c - it should match to get it working!
 745 //FIXME put into some header
 746 typedef struct dp_hdr_s {
 747     uint32_t chunks;        // number of chunks
 748     uint32_t timestamp; // timestamp from packet header
 749     uint32_t len;        // length of actual data
 750     uint32_t chunktab;        // offset to chunk offset array
 751 } dp_hdr_t;
 752
 753 static void swap_palette(void *pal) {
 754     int i;
 755     uint32_t *p = pal;
 756     for (i = 0; i < AVPALETTE_COUNT; i++)
 757         p[i] = le2me_32(p[i]);
 758 }
 759
 760 // decode a frame
 761 static struct mp_image *decode(struct sh_video *sh, void *data, int len,
 762                                int flags, double *reordered_pts)
 763 {
 764     int got_picture=0;
 765     int ret;
 766     vd_ffmpeg_ctx *ctx = sh->context;
 767     AVFrame *pic= ctx->pic;
 768     AVCodecContext *avctx = ctx->avctx;
 769     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 770     mp_image_t *mpi=NULL;
 771     int dr1= ctx->do_dr1;
 772     AVPacket pkt;
 773
 774     if(len<=0) return NULL; // skipped frame
 775
 776 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 777     if (!dr1)
 778     avctx->draw_horiz_band=NULL;
 779     if(ctx->vo_initialized && !(flags&3) && !dr1){
 780         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 781             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 782             sh->disp_w, sh->disp_h);
 783         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 784             // vd core likes slices!
 785             avctx->draw_horiz_band=draw_slice;
 786         }
 787     }
 788
 789     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 790
 791     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 792            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 793     av_init_packet(&pkt);
 794     pkt.data = data;
 795     pkt.size = len;
 796     // HACK: make PNGs decode normally instead of as CorePNG delta frames
 797     pkt.flags = PKT_FLAG_KEY;
 798     // The avcodec opaque field stupidly supports only int64_t type
 799     *(double *)&avctx->reordered_opaque = *reordered_pts;
 800     ret = avcodec_decode_video2(avctx, pic, &got_picture, &pkt);
 801     *reordered_pts = *(double *)&pic->reordered_opaque;
 802
 803     dr1= ctx->do_dr1;
 804     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 805 //printf("repeat: %d\n", pic->repeat_pict);
 806 //-- vstats generation
 807     while(lavc_param->vstats){ // always one time loop
 808         static FILE *fvstats=NULL;
 809         char filename[20];
 810         static long long int all_len=0;
 811         static int frame_number=0;
 812         static double all_frametime=0.0;
 813         AVFrame *pic= avctx->coded_frame;
 814         double quality=0.0;
 815
 816         if(!fvstats) {
 817             time_t today2;
 818             struct tm *today;
 819             today2 = time(NULL);
 820             today = localtime(&today2);
 821             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 822                 today->tm_min, today->tm_sec);
 823             fvstats = fopen(filename, "w");
 824             if(!fvstats) {
 825                 perror("fopen");
 826                 lavc_param->vstats=0; // disable block
 827                 break;
 828                 /*exit(1);*/
 829             }
 830         }
 831
 832         // average MB quantizer
 833         {
 834             int x, y;
 835             int w = ((avctx->width  << ctx->lowres)+15) >> 4;
 836             int h = ((avctx->height << ctx->lowres)+15) >> 4;
 837             int8_t *q = pic->qscale_table;
 838             for(y = 0; y < h; y++) {
 839                 for(x = 0; x < w; x++)
 840                     quality += (double)*(q+x);
 841                 q += pic->qstride;
 842             }
 843             quality /= w * h;
 844         }
 845
 846         all_len+=len;
 847         all_frametime+=sh->frametime;
 848         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 849             ++frame_number, quality, len, (double)all_len/1024);
 850         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 851            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 852            (double)(all_len*8)/all_frametime/1000.0);
 853         switch(pic->pict_type){
 854         case FF_I_TYPE:
 855             fprintf(fvstats, "type= I\n");
 856             break;
 857         case FF_P_TYPE:
 858             fprintf(fvstats, "type= P\n");
 859             break;
 860         case FF_S_TYPE:
 861             fprintf(fvstats, "type= S\n");
 862             break;
 863         case FF_B_TYPE:
 864             fprintf(fvstats, "type= B\n");
 865             break;
 866         default:
 867             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 868             break;
 869         }
 870
 871         ctx->qp_stat[(int)(quality+0.5)]++;
 872         ctx->qp_sum += quality;
 873         ctx->inv_qp_sum += 1.0/(double)quality;
 874
 875         break;
 876     }
 877 //--
 878
 879     if(!got_picture) return NULL;        // skipped image
 880
 881     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 882
 883     if(dr1 && pic->opaque){
 884         mpi= (mp_image_t *)pic->opaque;
 885     }
 886
 887     if(!mpi)
 888     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 889         avctx->width, avctx->height);
 890     if(!mpi){        // temporary!
 891         mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] Couldn't allocate image for codec.\n");
 892         return NULL;
 893     }
 894
 895     if(!dr1){
 896         mpi->planes[0]=pic->data[0];
 897         mpi->planes[1]=pic->data[1];
 898         mpi->planes[2]=pic->data[2];
 899         mpi->planes[3]=pic->data[3];
 900         mpi->stride[0]=pic->linesize[0];
 901         mpi->stride[1]=pic->linesize[1];
 902         mpi->stride[2]=pic->linesize[2];
 903         mpi->stride[3]=pic->linesize[3];
 904     }
 905
 906     if (!mpi->planes[0])
 907         return NULL;
 908
 909     if(avctx->pix_fmt==PIX_FMT_YUV422P && mpi->chroma_y_shift==1){
 910         // we have 422p but user wants 420p
 911         mpi->stride[1]*=2;
 912         mpi->stride[2]*=2;
 913     }
 914
 915 #if HAVE_BIGENDIAN
 916     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 917     if (mpi->bpp == 8)
 918         swap_palette(mpi->planes[1]);
 919 #endif
 920 /* to comfirm with newer lavc style */
 921     mpi->qscale =pic->qscale_table;
 922     mpi->qstride=pic->qstride;
 923     mpi->pict_type=pic->pict_type;
 924     mpi->qscale_type= pic->qscale_type;
 925     mpi->fields = MP_IMGFIELD_ORDERED;
 926     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 927     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 928     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 929
 930     return mpi;
 931 }
 932
 933 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 934                                     const enum PixelFormat *fmt){
 935     enum PixelFormat selected_format;
 936     int imgfmt;
 937     sh_video_t *sh = avctx->opaque;
 938     int i;
 939
 940     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 941         imgfmt = pixfmt2imgfmt(fmt[i]);
 942         if(!IMGFMT_IS_XVMC(imgfmt) && !IMGFMT_IS_VDPAU(imgfmt)) continue;
 943         mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] Trying pixfmt=%d.\n", i);
 944         if(init_vo(sh, fmt[i]) >= 0) {
 945             break;
 946         }
 947     }
 948     selected_format = fmt[i];
 949     return selected_format;
 950 }
 951
 952 const struct vd_functions mpcodecs_vd_ffmpeg = {
 953     .info = &info,
 954     .init = init,
 955     .uninit = uninit,
 956     .control = control,
 957     .decode2 = decode
 958 };