libavcodec/vaapi_decode.c

   1 /*
   2  * This file is part of Libav.
   3  *
   4  * Libav is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * Libav 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 GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with Libav; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #include "libavutil/avassert.h"
  20 #include "libavutil/common.h"
  21
  22 #include "avcodec.h"
  23 #include "internal.h"
  24 #include "vaapi_decode.h"
  25
  26
  27 int ff_vaapi_decode_make_param_buffer(AVCodecContext *avctx,
  28                                       VAAPIDecodePicture *pic,
  29                                       int type,
  30                                       const void *data,
  31                                       size_t size)
  32 {
  33     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
  34     VAStatus vas;
  35     VABufferID buffer;
  36
  37     av_assert0(pic->nb_param_buffers + 1 <= MAX_PARAM_BUFFERS);
  38
  39     vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
  40                          type, size, 1, (void*)data, &buffer);
  41     if (vas != VA_STATUS_SUCCESS) {
  42         av_log(avctx, AV_LOG_ERROR, "Failed to create parameter "
  43                "buffer (type %d): %d (%s).\n",
  44                type, vas, vaErrorStr(vas));
  45         return AVERROR(EIO);
  46     }
  47
  48     pic->param_buffers[pic->nb_param_buffers++] = buffer;
  49
  50     av_log(avctx, AV_LOG_DEBUG, "Param buffer (type %d, %zu bytes) "
  51            "is %#x.\n", type, size, buffer);
  52     return 0;
  53 }
  54
  55
  56 int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx,
  57                                       VAAPIDecodePicture *pic,
  58                                       const void *params_data,
  59                                       size_t params_size,
  60                                       const void *slice_data,
  61                                       size_t slice_size)
  62 {
  63     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
  64     VAStatus vas;
  65     int index;
  66
  67     av_assert0(pic->nb_slices <= pic->slices_allocated);
  68     if (pic->nb_slices == pic->slices_allocated) {
  69         if (pic->slices_allocated > 0)
  70             pic->slices_allocated *= 2;
  71         else
  72             pic->slices_allocated = 64;
  73
  74         pic->slice_buffers =
  75             av_realloc_array(pic->slice_buffers,
  76                              pic->slices_allocated,
  77                              2 * sizeof(*pic->slice_buffers));
  78         if (!pic->slice_buffers)
  79             return AVERROR(ENOMEM);
  80     }
  81     av_assert0(pic->nb_slices + 1 <= pic->slices_allocated);
  82
  83     index = 2 * pic->nb_slices;
  84
  85     vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
  86                          VASliceParameterBufferType,
  87                          params_size, 1, (void*)params_data,
  88                          &pic->slice_buffers[index]);
  89     if (vas != VA_STATUS_SUCCESS) {
  90         av_log(avctx, AV_LOG_ERROR, "Failed to create slice "
  91                "parameter buffer: %d (%s).\n", vas, vaErrorStr(vas));
  92         return AVERROR(EIO);
  93     }
  94
  95     av_log(avctx, AV_LOG_DEBUG, "Slice %d param buffer (%zu bytes) "
  96            "is %#x.\n", pic->nb_slices, params_size,
  97            pic->slice_buffers[index]);
  98
  99     vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
 100                          VASliceDataBufferType,
 101                          slice_size, 1, (void*)slice_data,
 102                          &pic->slice_buffers[index + 1]);
 103     if (vas != VA_STATUS_SUCCESS) {
 104         av_log(avctx, AV_LOG_ERROR, "Failed to create slice "
 105                "data buffer (size %zu): %d (%s).\n",
 106                slice_size, vas, vaErrorStr(vas));
 107         vaDestroyBuffer(ctx->hwctx->display,
 108                         pic->slice_buffers[index]);
 109         return AVERROR(EIO);
 110     }
 111
 112     av_log(avctx, AV_LOG_DEBUG, "Slice %d data buffer (%zu bytes) "
 113            "is %#x.\n", pic->nb_slices, slice_size,
 114            pic->slice_buffers[index + 1]);
 115
 116     ++pic->nb_slices;
 117     return 0;
 118 }
 119
 120 static void ff_vaapi_decode_destroy_buffers(AVCodecContext *avctx,
 121                                             VAAPIDecodePicture *pic)
 122 {
 123     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
 124     VAStatus vas;
 125     int i;
 126
 127     for (i = 0; i < pic->nb_param_buffers; i++) {
 128         vas = vaDestroyBuffer(ctx->hwctx->display,
 129                               pic->param_buffers[i]);
 130         if (vas != VA_STATUS_SUCCESS) {
 131             av_log(avctx, AV_LOG_ERROR, "Failed to destroy "
 132                    "parameter buffer %#x: %d (%s).\n",
 133                    pic->param_buffers[i], vas, vaErrorStr(vas));
 134         }
 135     }
 136
 137     for (i = 0; i < 2 * pic->nb_slices; i++) {
 138         vas = vaDestroyBuffer(ctx->hwctx->display,
 139                               pic->slice_buffers[i]);
 140         if (vas != VA_STATUS_SUCCESS) {
 141             av_log(avctx, AV_LOG_ERROR, "Failed to destroy slice "
 142                    "slice buffer %#x: %d (%s).\n",
 143                    pic->slice_buffers[i], vas, vaErrorStr(vas));
 144         }
 145     }
 146 }
 147
 148 int ff_vaapi_decode_issue(AVCodecContext *avctx,
 149                           VAAPIDecodePicture *pic)
 150 {
 151     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
 152     VAStatus vas;
 153     int err, i;
 154
 155     av_log(avctx, AV_LOG_DEBUG, "Decode to surface %#x.\n",
 156            pic->output_surface);
 157
 158     for (i = 0; i < pic->nb_param_buffers; i++)
 159         vaUnmapBuffer(ctx->hwctx->display, pic->param_buffers[i]);
 160
 161     vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context,
 162                          pic->output_surface);
 163     if (vas != VA_STATUS_SUCCESS) {
 164         av_log(avctx, AV_LOG_ERROR, "Failed to begin picture decode "
 165                "issue: %d (%s).\n", vas, vaErrorStr(vas));
 166         err = AVERROR(EIO);
 167         goto fail_with_picture;
 168     }
 169
 170     vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
 171                           pic->param_buffers, pic->nb_param_buffers);
 172     if (vas != VA_STATUS_SUCCESS) {
 173         av_log(avctx, AV_LOG_ERROR, "Failed to upload decode "
 174                "parameters: %d (%s).\n", vas, vaErrorStr(vas));
 175         err = AVERROR(EIO);
 176         goto fail_with_picture;
 177     }
 178
 179     vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
 180                           pic->slice_buffers, 2 * pic->nb_slices);
 181     if (vas != VA_STATUS_SUCCESS) {
 182         av_log(avctx, AV_LOG_ERROR, "Failed to upload slices: "
 183                "%d (%s).\n", vas, vaErrorStr(vas));
 184         err = AVERROR(EIO);
 185         goto fail_with_picture;
 186     }
 187
 188     vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
 189     if (vas != VA_STATUS_SUCCESS) {
 190         av_log(avctx, AV_LOG_ERROR, "Failed to end picture decode "
 191                "issue: %d (%s).\n", vas, vaErrorStr(vas));
 192         err = AVERROR(EIO);
 193         if (ctx->hwctx->driver_quirks &
 194             AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS)
 195             goto fail;
 196         else
 197             goto fail_at_end;
 198     }
 199
 200     if (ctx->hwctx->driver_quirks &
 201         AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS)
 202         ff_vaapi_decode_destroy_buffers(avctx, pic);
 203
 204     pic->nb_slices        = 0;
 205     pic->slices_allocated = 0;
 206     av_freep(&pic->slice_buffers);
 207
 208     return 0;
 209
 210 fail_with_picture:
 211     vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
 212     if (vas != VA_STATUS_SUCCESS) {
 213         av_log(avctx, AV_LOG_ERROR, "Failed to end picture decode "
 214                "after error: %d (%s).\n", vas, vaErrorStr(vas));
 215     }
 216 fail:
 217     ff_vaapi_decode_destroy_buffers(avctx, pic);
 218 fail_at_end:
 219     return err;
 220 }
 221
 222 int ff_vaapi_decode_cancel(AVCodecContext *avctx,
 223                            VAAPIDecodePicture *pic)
 224 {
 225     ff_vaapi_decode_destroy_buffers(avctx, pic);
 226
 227     pic->nb_param_buffers = 0;
 228     pic->nb_slices        = 0;
 229     pic->slices_allocated = 0;
 230     av_freep(&pic->slice_buffers);
 231
 232     return 0;
 233 }
 234
 235 static const struct {
 236     enum AVCodecID codec_id;
 237     int codec_profile;
 238     VAProfile va_profile;
 239 } vaapi_profile_map[] = {
 240 #define MAP(c, p, v) { AV_CODEC_ID_ ## c, FF_PROFILE_ ## p, VAProfile ## v }
 241     MAP(MPEG2VIDEO,  MPEG2_SIMPLE,    MPEG2Simple ),
 242     MAP(MPEG2VIDEO,  MPEG2_MAIN,      MPEG2Main   ),
 243     MAP(H263,        UNKNOWN,         H263Baseline),
 244     MAP(MPEG4,       MPEG4_SIMPLE,    MPEG4Simple ),
 245     MAP(MPEG4,       MPEG4_ADVANCED_SIMPLE,
 246                                MPEG4AdvancedSimple),
 247     MAP(MPEG4,       MPEG4_MAIN,      MPEG4Main   ),
 248     MAP(H264,        H264_CONSTRAINED_BASELINE,
 249                            H264ConstrainedBaseline),
 250     MAP(H264,        H264_BASELINE,   H264Baseline),
 251     MAP(H264,        H264_MAIN,       H264Main    ),
 252     MAP(H264,        H264_HIGH,       H264High    ),
 253 #if VA_CHECK_VERSION(0, 37, 0)
 254     MAP(HEVC,        HEVC_MAIN,       HEVCMain    ),
 255 #endif
 256     MAP(WMV3,        VC1_SIMPLE,      VC1Simple   ),
 257     MAP(WMV3,        VC1_MAIN,        VC1Main     ),
 258     MAP(WMV3,        VC1_COMPLEX,     VC1Advanced ),
 259     MAP(WMV3,        VC1_ADVANCED,    VC1Advanced ),
 260     MAP(VC1,         VC1_SIMPLE,      VC1Simple   ),
 261     MAP(VC1,         VC1_MAIN,        VC1Main     ),
 262     MAP(VC1,         VC1_COMPLEX,     VC1Advanced ),
 263     MAP(VC1,         VC1_ADVANCED,    VC1Advanced ),
 264 #if VA_CHECK_VERSION(0, 35, 0)
 265     MAP(VP8,         UNKNOWN,       VP8Version0_3 ),
 266 #endif
 267 #if VA_CHECK_VERSION(0, 38, 0)
 268     MAP(VP9,         VP9_0,           VP9Profile0 ),
 269 #endif
 270 #undef MAP
 271 };
 272
 273 static int vaapi_decode_make_config(AVCodecContext *avctx)
 274 {
 275     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
 276
 277     AVVAAPIHWConfig       *hwconfig    = NULL;
 278     AVHWFramesConstraints *constraints = NULL;
 279     VAStatus vas;
 280     int err, i, j;
 281     const AVCodecDescriptor *codec_desc;
 282     VAProfile profile, *profile_list = NULL;
 283     int profile_count, exact_match, alt_profile;
 284
 285     // Allowing a profile mismatch can be useful because streams may
 286     // over-declare their required capabilities - in particular, many
 287     // H.264 baseline profile streams (notably some of those in FATE)
 288     // only use the feature set of constrained baseline.  This flag
 289     // would have to be be set by some external means in order to
 290     // actually be useful.  (AV_HWACCEL_FLAG_IGNORE_PROFILE?)
 291     int allow_profile_mismatch = 0;
 292
 293     codec_desc = avcodec_descriptor_get(avctx->codec_id);
 294     if (!codec_desc) {
 295         err = AVERROR(EINVAL);
 296         goto fail;
 297     }
 298
 299     profile_count = vaMaxNumProfiles(ctx->hwctx->display);
 300     profile_list  = av_malloc_array(profile_count,
 301                                     sizeof(VAProfile));
 302     if (!profile_list) {
 303         err = AVERROR(ENOMEM);
 304         goto fail;
 305     }
 306
 307     vas = vaQueryConfigProfiles(ctx->hwctx->display,
 308                                 profile_list, &profile_count);
 309     if (vas != VA_STATUS_SUCCESS) {
 310         av_log(ctx, AV_LOG_ERROR, "Failed to query profiles: "
 311                "%d (%s).\n", vas, vaErrorStr(vas));
 312         err = AVERROR(ENOSYS);
 313         goto fail;
 314     }
 315
 316     profile = VAProfileNone;
 317     exact_match = 0;
 318
 319     for (i = 0; i < FF_ARRAY_ELEMS(vaapi_profile_map); i++) {
 320         int profile_match = 0;
 321         if (avctx->codec_id != vaapi_profile_map[i].codec_id)
 322             continue;
 323         if (avctx->profile == vaapi_profile_map[i].codec_profile)
 324             profile_match = 1;
 325         profile = vaapi_profile_map[i].va_profile;
 326         for (j = 0; j < profile_count; j++) {
 327             if (profile == profile_list[j]) {
 328                 exact_match = profile_match;
 329                 break;
 330             }
 331         }
 332         if (j < profile_count) {
 333             if (exact_match)
 334                 break;
 335             alt_profile = vaapi_profile_map[i].codec_profile;
 336         }
 337     }
 338     av_freep(&profile_list);
 339
 340     if (profile == VAProfileNone) {
 341         av_log(ctx, AV_LOG_ERROR, "No support for codec %s "
 342                "profile %d.\n", codec_desc->name, avctx->profile);
 343         err = AVERROR(ENOSYS);
 344         goto fail;
 345     }
 346     if (!exact_match) {
 347         if (allow_profile_mismatch) {
 348             av_log(avctx, AV_LOG_VERBOSE, "Codec %s profile %d not "
 349                    "supported for hardware decode.\n",
 350                    codec_desc->name, avctx->profile);
 351             av_log(avctx, AV_LOG_WARNING, "Using possibly-"
 352                    "incompatible profile %d instead.\n",
 353                    alt_profile);
 354         } else {
 355             av_log(avctx, AV_LOG_VERBOSE, "Codec %s profile %d not "
 356                    "supported for hardware decode.\n",
 357                    codec_desc->name, avctx->profile);
 358             err = AVERROR(EINVAL);
 359             goto fail;
 360         }
 361     }
 362
 363     ctx->va_profile    = profile;
 364     ctx->va_entrypoint = VAEntrypointVLD;
 365
 366     vas = vaCreateConfig(ctx->hwctx->display, ctx->va_profile,
 367                          ctx->va_entrypoint, NULL, 0,
 368                          &ctx->va_config);
 369     if (vas != VA_STATUS_SUCCESS) {
 370         av_log(avctx, AV_LOG_ERROR, "Failed to create decode "
 371                "configuration: %d (%s).\n", vas, vaErrorStr(vas));
 372         err = AVERROR(EIO);
 373         goto fail;
 374     }
 375
 376     hwconfig = av_hwdevice_hwconfig_alloc(ctx->frames->device_ref);
 377     if (!hwconfig) {
 378         err = AVERROR(ENOMEM);
 379         goto fail;
 380     }
 381     hwconfig->config_id = ctx->va_config;
 382
 383     constraints =
 384         av_hwdevice_get_hwframe_constraints(ctx->frames->device_ref,
 385                                             hwconfig);
 386     if (!constraints) {
 387         // Ignore.
 388     } else {
 389         if (avctx->coded_width  < constraints->min_width  ||
 390             avctx->coded_height < constraints->min_height ||
 391             avctx->coded_width  > constraints->max_width  ||
 392             avctx->coded_height > constraints->max_height) {
 393             av_log(ctx, AV_LOG_ERROR, "Hardware does not support image "
 394                    "size %dx%d (constraints: width %d-%d height %d-%d).\n",
 395                    avctx->coded_width, avctx->coded_height,
 396                    constraints->min_width,  constraints->max_width,
 397                    constraints->min_height, constraints->max_height);
 398             err = AVERROR(EINVAL);
 399             goto fail;
 400         }
 401     }
 402
 403     av_hwframe_constraints_free(&constraints);
 404     av_freep(&hwconfig);
 405
 406     return 0;
 407
 408 fail:
 409     av_hwframe_constraints_free(&constraints);
 410     av_freep(&hwconfig);
 411     if (ctx->va_config != VA_INVALID_ID) {
 412         vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
 413         ctx->va_config = VA_INVALID_ID;
 414     }
 415     av_freep(&profile_list);
 416     return err;
 417 }
 418
 419 int ff_vaapi_decode_init(AVCodecContext *avctx)
 420 {
 421     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
 422     VAStatus vas;
 423     int err;
 424
 425     ctx->va_config  = VA_INVALID_ID;
 426     ctx->va_context = VA_INVALID_ID;
 427
 428 #if FF_API_VAAPI_CONTEXT
 429     if (avctx->hwaccel_context) {
 430         av_log(avctx, AV_LOG_WARNING, "Using deprecated struct "
 431                "vaapi_context in decode.\n");
 432
 433         ctx->have_old_context = 1;
 434         ctx->old_context = avctx->hwaccel_context;
 435
 436         // Really we only want the VAAPI device context, but this
 437         // allocates a whole generic device context because we don't
 438         // have any other way to determine how big it should be.
 439         ctx->device_ref =
 440             av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VAAPI);
 441         if (!ctx->device_ref) {
 442             err = AVERROR(ENOMEM);
 443             goto fail;
 444         }
 445         ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
 446         ctx->hwctx  = ctx->device->hwctx;
 447
 448         ctx->hwctx->display = ctx->old_context->display;
 449
 450         // The old VAAPI decode setup assumed this quirk was always
 451         // present, so set it here to avoid the behaviour changing.
 452         ctx->hwctx->driver_quirks =
 453             AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS;
 454
 455     } else
 456 #endif
 457     if (avctx->hw_frames_ctx) {
 458         // This structure has a shorter lifetime than the enclosing
 459         // AVCodecContext, so we inherit the references from there
 460         // and do not need to make separate ones.
 461
 462         ctx->frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
 463         ctx->hwfc   = ctx->frames->hwctx;
 464
 465         ctx->device = ctx->frames->device_ctx;
 466         ctx->hwctx  = ctx->device->hwctx;
 467
 468     } else {
 469         av_log(avctx, AV_LOG_ERROR, "A hardware frames context is "
 470                "required for VAAPI decoding.\n");
 471         err = AVERROR(EINVAL);
 472         goto fail;
 473     }
 474
 475 #if FF_API_VAAPI_CONTEXT
 476     if (ctx->have_old_context) {
 477         ctx->va_config  = ctx->old_context->config_id;
 478         ctx->va_context = ctx->old_context->context_id;
 479
 480         av_log(avctx, AV_LOG_DEBUG, "Using user-supplied decoder "
 481                "context: %#x/%#x.\n", ctx->va_config, ctx->va_context);
 482     } else {
 483 #endif
 484
 485     err = vaapi_decode_make_config(avctx);
 486     if (err)
 487         goto fail;
 488
 489     vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
 490                           avctx->coded_width, avctx->coded_height,
 491                           VA_PROGRESSIVE,
 492                           ctx->hwfc->surface_ids,
 493                           ctx->hwfc->nb_surfaces,
 494                           &ctx->va_context);
 495     if (vas != VA_STATUS_SUCCESS) {
 496         av_log(avctx, AV_LOG_ERROR, "Failed to create decode "
 497                "context: %d (%s).\n", vas, vaErrorStr(vas));
 498         err = AVERROR(EIO);
 499         goto fail;
 500     }
 501
 502     av_log(avctx, AV_LOG_DEBUG, "Decode context initialised: "
 503            "%#x/%#x.\n", ctx->va_config, ctx->va_context);
 504 #if FF_API_VAAPI_CONTEXT
 505     }
 506 #endif
 507
 508     return 0;
 509
 510 fail:
 511     ff_vaapi_decode_uninit(avctx);
 512     return err;
 513 }
 514
 515 int ff_vaapi_decode_uninit(AVCodecContext *avctx)
 516 {
 517     VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
 518     VAStatus vas;
 519
 520 #if FF_API_VAAPI_CONTEXT
 521     if (ctx->have_old_context) {
 522         av_buffer_unref(&ctx->device_ref);
 523     } else {
 524 #endif
 525
 526     if (ctx->va_context != VA_INVALID_ID) {
 527         vas = vaDestroyContext(ctx->hwctx->display, ctx->va_context);
 528         if (vas != VA_STATUS_SUCCESS) {
 529             av_log(avctx, AV_LOG_ERROR, "Failed to destroy decode "
 530                    "context %#x: %d (%s).\n",
 531                    ctx->va_context, vas, vaErrorStr(vas));
 532         }
 533     }
 534     if (ctx->va_config != VA_INVALID_ID) {
 535         vas = vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
 536         if (vas != VA_STATUS_SUCCESS) {
 537             av_log(avctx, AV_LOG_ERROR, "Failed to destroy decode "
 538                    "configuration %#x: %d (%s).\n",
 539                    ctx->va_config, vas, vaErrorStr(vas));
 540         }
 541     }
 542
 543 #if FF_API_VAAPI_CONTEXT
 544     }
 545 #endif
 546
 547     return 0;
 548 }