libavcodec/dxva2_vc1.c - play-games/ffmpeg - Git at Google


            
            /*

            
             * DXVA2 WMV3/VC-1 HW acceleration.

            
             *

            
             * copyright (c) 2010 Laurent Aimar

            
             *

            
             * This file is part of FFmpeg.

            
             *

            
             * FFmpeg is free software; you can redistribute it and/or

            
             * modify it under the terms of the GNU Lesser General Public

            
             * License as published by the Free Software Foundation; either

            
             * version 2.1 of the License, or (at your option) any later version.

            
             *

            
             * FFmpeg is distributed in the hope that it will be useful,

            
             * but WITHOUT ANY WARRANTY; without even the implied warranty of

            
             * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

            
             * Lesser General Public License for more details.

            
             *

            
             * You should have received a copy of the GNU Lesser General Public

            
             * License along with FFmpeg; if not, write to the Free Software

            
             * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

            
             */


            #include "config_components.h"


            #include "dxva2_internal.h"

            
            #include "hwaccel_internal.h"

            
            #include "mpegutils.h"

            
            #include "mpegvideodec.h"

            
            #include "vc1.h"

            
            #include "vc1data.h"


            #define MAX_SLICES 1024


            struct dxva2_picture_context {

            
                DXVA_PictureParameters pp;

            
                unsigned               slice_count;

            
                DXVA_SliceInfo         slice[MAX_SLICES];


                const uint8_t          *bitstream;

            
                unsigned               bitstream_size;

            
            };


            void ff_dxva2_vc1_fill_picture_parameters(AVCodecContext *avctx,

            
                                                AVDXVAContext *ctx,

            
                                                DXVA_PictureParameters *pp)

            
            {

            
                const VC1Context *v = avctx->priv_data;

            
                const MpegEncContext *s = &v->s;

            
                const Picture *current_picture = s->current_picture_ptr;

            
                int intcomp = 0;


                // determine if intensity compensation is needed

            
                if (s->pict_type == AV_PICTURE_TYPE_P) {

            
                  if ((v->fcm == ILACE_FRAME && v->intcomp) || (v->fcm != ILACE_FRAME && v->mv_mode == MV_PMODE_INTENSITY_COMP)) {

            
                    if (v->lumscale != 32 || v->lumshift != 0 || (s->picture_structure != PICT_FRAME && (v->lumscale2 != 32 || v->lumshift2 != 0)))

            
                      intcomp = 1;

            
                  }

            
                }


                memset(pp, 0, sizeof(*pp));

            
                if (s->pict_type != AV_PICTURE_TYPE_I && !v->bi_type)

            
                    pp->wForwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->last_picture.f, 0);

            
                else

            
                    pp->wForwardRefPictureIndex = 0xffff;

            
                if (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)

            
                    pp->wBackwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->next_picture.f, 0);

            
                else

            
                    pp->wBackwardRefPictureIndex = 0xffff;

            
                pp->wDecodedPictureIndex    =

            
                pp->wDeblockedPictureIndex  = ff_dxva2_get_surface_index(avctx, ctx, current_picture->f, 1);

            
                if (v->profile == PROFILE_ADVANCED) {

            
                    /* It is the cropped width/height -1 of the frame */

            
                    pp->wPicWidthInMBminus1 = avctx->width  - 1;

            
                    pp->wPicHeightInMBminus1= avctx->height - 1;

            
                } else {

            
                    /* It is the coded width/height in macroblock -1 of the frame */

            
                    pp->wPicWidthInMBminus1 = s->mb_width  - 1;

            
                    pp->wPicHeightInMBminus1= s->mb_height - 1;

            
                }

            
                pp->bMacroblockWidthMinus1  = 15;

            
                pp->bMacroblockHeightMinus1 = 15;

            
                pp->bBlockWidthMinus1       = 7;

            
                pp->bBlockHeightMinus1      = 7;

            
                pp->bBPPminus1              = 7;

            
                if (s->picture_structure & PICT_TOP_FIELD)

            
                    pp->bPicStructure      |= 0x01;

            
                if (s->picture_structure & PICT_BOTTOM_FIELD)

            
                    pp->bPicStructure      |= 0x02;

            
                pp->bSecondField            = v->interlace && v->fcm == ILACE_FIELD && v->second_field;

            
                pp->bPicIntra               = s->pict_type == AV_PICTURE_TYPE_I || v->bi_type;

            
                pp->bPicBackwardPrediction  = s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type;

            
                pp->bBidirectionalAveragingMode = (1                                           << 7) |

            
                                                  ((DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) != 0) << 6) |

            
                                                  ((DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) != 0) << 5) |

            
                                                  (intcomp                                     << 4) |

            
                                                  ((v->profile == PROFILE_ADVANCED)            << 3);

            
                pp->bMVprecisionAndChromaRelation = ((v->mv_mode == MV_PMODE_1MV_HPEL_BILIN) << 3) |

            
                                                    (1                                       << 2) |

            
                                                    (0                                       << 1) |

            
                                                    (!s->quarter_sample                          );

            
                pp->bChromaFormat           = v->chromaformat;

            
                DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;

            
                if (DXVA_CONTEXT_REPORT_ID(avctx, ctx) >= (1 << 16))

            
                    DXVA_CONTEXT_REPORT_ID(avctx, ctx) = 1;

            
                pp->bPicScanFixed           = DXVA_CONTEXT_REPORT_ID(avctx, ctx) >> 8;

            
                pp->bPicScanMethod          = DXVA_CONTEXT_REPORT_ID(avctx, ctx) & 0xff;

            
                pp->bPicReadbackRequests    = 0;

            
                pp->bRcontrol               = v->rnd;

            
                pp->bPicSpatialResid8       = (v->panscanflag  << 7) |

            
                                              (v->refdist_flag << 6) |

            
                                              (s->loop_filter  << 5) |

            
                                              (v->fastuvmc     << 4) |

            
                                              (v->extended_mv  << 3) |

            
                                              (v->dquant       << 1) |

            
                                              (v->vstransform      );

            
                pp->bPicOverflowBlocks      = (v->quantizer_mode << 6) |

            
                                              (v->multires       << 5) |

            
                                              (v->resync_marker  << 4) |

            
                                              (v->rangered       << 3) |

            
                                              (s->max_b_frames       );

            
                pp->bPicExtrapolation       = (!v->interlace || v->fcm == PROGRESSIVE) ? 1 : 2;

            
                pp->bPicDeblocked           = ((!pp->bPicBackwardPrediction && v->overlap)        << 6) |

            
                                              ((v->profile != PROFILE_ADVANCED && v->rangeredfrm) << 5) |

            
                                              (s->loop_filter                                     << 1);

            
                pp->bPicDeblockConfined     = (v->postprocflag             << 7) |

            
                                              (v->broadcast                << 6) |

            
                                              (v->interlace                << 5) |

            
                                              (v->tfcntrflag               << 4) |

            
                                              (v->finterpflag              << 3) |

            
                                              ((s->pict_type != AV_PICTURE_TYPE_B) << 2) |

            
                                              (v->psf                      << 1) |

            
                                              (v->extended_dmv                 );

            
                if (s->pict_type != AV_PICTURE_TYPE_I)

            
                    pp->bPic4MVallowed      = v->mv_mode == MV_PMODE_MIXED_MV ||

            
                                              (v->mv_mode == MV_PMODE_INTENSITY_COMP &&

            
                                               v->mv_mode2 == MV_PMODE_MIXED_MV);

            
                if (v->profile == PROFILE_ADVANCED)

            
                    pp->bPicOBMC            = (v->range_mapy_flag  << 7) |

            
                                              (v->range_mapy       << 4) |

            
                                              (v->range_mapuv_flag << 3) |

            
                                              (v->range_mapuv          );

            
                pp->bPicBinPB               = 0;

            
                pp->bMV_RPS                 = (v->fcm == ILACE_FIELD && pp->bPicBackwardPrediction) ? v->refdist + 9 : 0;

            
                pp->bReservedBits           = v->pq;

            
                if (s->picture_structure == PICT_FRAME) {

            
                    if (intcomp) {

            
                        pp->wBitstreamFcodes      = v->lumscale;

            
                        pp->wBitstreamPCEelements = v->lumshift;

            
                    } else {

            
                        pp->wBitstreamFcodes      = 32;

            
                        pp->wBitstreamPCEelements = 0;

            
                    }

            
                } else {

            
                    /* Syntax: (top_field_param << 8) | bottom_field_param */

            
                    if (intcomp) {

            
                        pp->wBitstreamFcodes      = (v->lumscale << 8) | v->lumscale2;

            
                        pp->wBitstreamPCEelements = (v->lumshift << 8) | v->lumshift2;

            
                    } else {

            
                        pp->wBitstreamFcodes      = (32 << 8) | 32;

            
                        pp->wBitstreamPCEelements = 0;

            
                    }

            
                }

            
                pp->bBitstreamConcealmentNeed   = 0;

            
                pp->bBitstreamConcealmentMethod = 0;

            
            }


            void ff_dxva2_vc1_fill_slice(AVCodecContext *avctx, DXVA_SliceInfo *slice,

            
                                   unsigned position, unsigned size)

            
            {

            
                const VC1Context *v = avctx->priv_data;

            
                const MpegEncContext *s = &v->s;


                memset(slice, 0, sizeof(*slice));

            
                slice->wHorizontalPosition = 0;

            
                slice->wVerticalPosition   = s->mb_y;

            
                slice->dwSliceBitsInBuffer = 8 * size;

            
                slice->dwSliceDataLocation = position;

            
                slice->bStartCodeBitOffset = 0;

            
                slice->bReservedBits       = (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type) ? v->bfraction_lut_index + 9 : 0;

            
                slice->wMBbitOffset        = v->p_frame_skipped ? 0xffff : get_bits_count(&s->gb) + (avctx->codec_id == AV_CODEC_ID_VC1 ? 32 : 0);

            
                /* XXX We store the index of the first MB and it will be fixed later */

            
                slice->wNumberMBsInSlice   = (s->mb_y >> v->field_mode) * s->mb_width + s->mb_x;

            
                slice->wQuantizerScaleCode = v->pq;

            
                slice->wBadSliceChopping   = 0;

            
            }


            static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,

            
                                                         DECODER_BUFFER_DESC *bs,

            
                                                         DECODER_BUFFER_DESC *sc)

            
            {

            
                const VC1Context *v = avctx->priv_data;

            
                AVDXVAContext *ctx = DXVA_CONTEXT(avctx);

            
                const MpegEncContext *s = &v->s;

            
                struct dxva2_picture_context *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;


                static const uint8_t start_code[] = { 0, 0, 1, 0x0d };

            
                const unsigned start_code_size = avctx->codec_id == AV_CODEC_ID_VC1 ? sizeof(start_code) : 0;

            
                const unsigned mb_count = s->mb_width * (s->mb_height >> v->field_mode);

            
                DXVA_SliceInfo *slice = NULL;

            
                void     *dxva_data_ptr;

            
                uint8_t  *dxva_data, *current, *end;

            
                unsigned dxva_size;

            
                unsigned padding;

            
                unsigned i;

            
                unsigned type;


            #if CONFIG_D3D11VA

            
                if (ff_dxva2_is_d3d11(avctx)) {

            
                    type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;

            
                    if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,

            
                                                                   D3D11VA_CONTEXT(ctx)->decoder,

            
                                                                   type,

            
                                                                   &dxva_size, &dxva_data_ptr)))

            
                        return -1;

            
                }

            
            #endif

            
            #if CONFIG_DXVA2

            
                if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {

            
                    type = DXVA2_BitStreamDateBufferType;

            
                    if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,

            
                                                              type,

            
                                                              &dxva_data_ptr, &dxva_size)))

            
                        return -1;

            
                }

            
            #endif


                dxva_data = dxva_data_ptr;

            
                current = dxva_data;

            
                end = dxva_data + dxva_size;


                for (i = 0; i < ctx_pic->slice_count; i++) {

            
                    unsigned position, size;

            
                    slice    = &ctx_pic->slice[i];

            
                    position = slice->dwSliceDataLocation;

            
                    size     = slice->dwSliceBitsInBuffer / 8;

            
                    if (start_code_size + size > end - current) {

            
                        av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");

            
                        break;

            
                    }

            
                    slice->dwSliceDataLocation = current - dxva_data;


                    if (i < ctx_pic->slice_count - 1)

            
                        slice->wNumberMBsInSlice =

            
                            slice[1].wNumberMBsInSlice - slice[0].wNumberMBsInSlice;

            
                    else

            
                        slice->wNumberMBsInSlice =

            
                            mb_count - slice[0].wNumberMBsInSlice;


                    /* write the appropriate frame, field or slice start code */

            
                    if (start_code_size) {

            
                        memcpy(current, start_code, start_code_size);

            
                        if (i == 0 && v->second_field)

            
                            current[3] = 0x0c;

            
                        else if (i > 0)

            
                            current[3] = 0x0b;


                        current += start_code_size;

            
                        slice->dwSliceBitsInBuffer += start_code_size * 8;

            
                    }


                    memcpy(current, &ctx_pic->bitstream[position], size);

            
                    current += size;

            
                }

            
                padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);

            
                if (slice && padding > 0) {

            
                    memset(current, 0, padding);

            
                    current += padding;

            
                    slice->dwSliceBitsInBuffer += padding * 8;

            
                }


            #if CONFIG_D3D11VA

            
                if (ff_dxva2_is_d3d11(avctx))

            
                    if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))

            
                        return -1;

            
            #endif

            
            #if CONFIG_DXVA2

            
                if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)

            
                    if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))

            
                        return -1;

            
            #endif

            
                if (i < ctx_pic->slice_count)

            
                    return -1;


            #if CONFIG_D3D11VA

            
                if (ff_dxva2_is_d3d11(avctx)) {

            
                    D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;

            
                    memset(dsc11, 0, sizeof(*dsc11));

            
                    dsc11->BufferType           = type;

            
                    dsc11->DataSize             = current - dxva_data;

            
                    dsc11->NumMBsInBuffer       = mb_count;


                    type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;

            
                }

            
            #endif

            
            #if CONFIG_DXVA2

            
                if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {

            
                    DXVA2_DecodeBufferDesc *dsc2 = bs;

            
                    memset(dsc2, 0, sizeof(*dsc2));

            
                    dsc2->CompressedBufferType = type;

            
                    dsc2->DataSize             = current - dxva_data;

            
                    dsc2->NumMBsInBuffer       = mb_count;


                    type = DXVA2_SliceControlBufferType;

            
                }

            
            #endif


                return ff_dxva2_commit_buffer(avctx, ctx, sc,

            
                                              type,

            
                                              ctx_pic->slice,

            
                                              ctx_pic->slice_count * sizeof(*ctx_pic->slice),

            
                                              mb_count);

            
            }


            static int dxva2_vc1_start_frame(AVCodecContext *avctx,

            
                                             av_unused const uint8_t *buffer,

            
                                             av_unused uint32_t size)

            
            {

            
                const VC1Context *v = avctx->priv_data;

            
                AVDXVAContext *ctx = DXVA_CONTEXT(avctx);

            
                struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;


                if (!DXVA_CONTEXT_VALID(avctx, ctx))

            
                    return -1;

            
                av_assert0(ctx_pic);


                ff_dxva2_vc1_fill_picture_parameters(avctx, ctx, &ctx_pic->pp);


                ctx_pic->slice_count    = 0;

            
                ctx_pic->bitstream_size = 0;

            
                ctx_pic->bitstream      = NULL;

            
                return 0;

            
            }


            static int dxva2_vc1_decode_slice(AVCodecContext *avctx,

            
                                              const uint8_t *buffer,

            
                                              uint32_t size)

            
            {

            
                const VC1Context *v = avctx->priv_data;

            
                const Picture *current_picture = v->s.current_picture_ptr;

            
                struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;

            
                unsigned position;


                if (ctx_pic->slice_count >= MAX_SLICES) {

            
                    avpriv_request_sample(avctx, "%d slices in dxva2",

            
                                          ctx_pic->slice_count);

            
                    return -1;

            
                }


                if (avctx->codec_id == AV_CODEC_ID_VC1 &&

            
                    size >= 4 && IS_MARKER(AV_RB32(buffer))) {

            
                    buffer += 4;

            
                    size   -= 4;

            
                }


                if (!ctx_pic->bitstream)

            
                    ctx_pic->bitstream = buffer;

            
                ctx_pic->bitstream_size += size;


                position = buffer - ctx_pic->bitstream;

            
                ff_dxva2_vc1_fill_slice(avctx, &ctx_pic->slice[ctx_pic->slice_count++], position, size);

            
                return 0;

            
            }


            static int dxva2_vc1_end_frame(AVCodecContext *avctx)

            
            {

            
                VC1Context *v = avctx->priv_data;

            
                struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;

            
                int ret;


                if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)

            
                    return -1;


                ret = ff_dxva2_common_end_frame(avctx, v->s.current_picture_ptr->f,

            
                                                &ctx_pic->pp, sizeof(ctx_pic->pp),

            
                                                NULL, 0,

            
                                                commit_bitstream_and_slice_buffer);

            
                return ret;

            
            }


            #if CONFIG_WMV3_DXVA2_HWACCEL

            
            const FFHWAccel ff_wmv3_dxva2_hwaccel = {

            
                .p.name         = "wmv3_dxva2",

            
                .p.type         = AVMEDIA_TYPE_VIDEO,

            
                .p.id           = AV_CODEC_ID_WMV3,

            
                .p.pix_fmt      = AV_PIX_FMT_DXVA2_VLD,

            
                .init           = ff_dxva2_decode_init,

            
                .uninit         = ff_dxva2_decode_uninit,

            
                .start_frame    = dxva2_vc1_start_frame,

            
                .decode_slice   = dxva2_vc1_decode_slice,

            
                .end_frame      = dxva2_vc1_end_frame,

            
                .frame_params   = ff_dxva2_common_frame_params,

            
                .frame_priv_data_size = sizeof(struct dxva2_picture_context),

            
                .priv_data_size = sizeof(FFDXVASharedContext),

            
            };

            
            #endif


            #if CONFIG_VC1_DXVA2_HWACCEL

            
            const FFHWAccel ff_vc1_dxva2_hwaccel = {

            
                .p.name         = "vc1_dxva2",

            
                .p.type         = AVMEDIA_TYPE_VIDEO,

            
                .p.id           = AV_CODEC_ID_VC1,

            
                .p.pix_fmt      = AV_PIX_FMT_DXVA2_VLD,

            
                .init           = ff_dxva2_decode_init,

            
                .uninit         = ff_dxva2_decode_uninit,

            
                .start_frame    = dxva2_vc1_start_frame,

            
                .decode_slice   = dxva2_vc1_decode_slice,

            
                .end_frame      = dxva2_vc1_end_frame,

            
                .frame_params   = ff_dxva2_common_frame_params,

            
                .frame_priv_data_size = sizeof(struct dxva2_picture_context),

            
                .priv_data_size = sizeof(FFDXVASharedContext),

            
            };

            
            #endif


            #if CONFIG_WMV3_D3D11VA_HWACCEL

            
            const FFHWAccel ff_wmv3_d3d11va_hwaccel = {

            
                .p.name         = "wmv3_d3d11va",

            
                .p.type         = AVMEDIA_TYPE_VIDEO,

            
                .p.id           = AV_CODEC_ID_WMV3,

            
                .p.pix_fmt      = AV_PIX_FMT_D3D11VA_VLD,

            
                .init           = ff_dxva2_decode_init,

            
                .uninit         = ff_dxva2_decode_uninit,

            
                .start_frame    = dxva2_vc1_start_frame,

            
                .decode_slice   = dxva2_vc1_decode_slice,

            
                .end_frame      = dxva2_vc1_end_frame,

            
                .frame_params   = ff_dxva2_common_frame_params,

            
                .frame_priv_data_size = sizeof(struct dxva2_picture_context),

            
                .priv_data_size = sizeof(FFDXVASharedContext),

            
            };

            
            #endif


            #if CONFIG_WMV3_D3D11VA2_HWACCEL

            
            const FFHWAccel ff_wmv3_d3d11va2_hwaccel = {

            
                .p.name         = "wmv3_d3d11va2",

            
                .p.type         = AVMEDIA_TYPE_VIDEO,

            
                .p.id           = AV_CODEC_ID_WMV3,

            
                .p.pix_fmt      = AV_PIX_FMT_D3D11,

            
                .init           = ff_dxva2_decode_init,

            
                .uninit         = ff_dxva2_decode_uninit,

            
                .start_frame    = dxva2_vc1_start_frame,

            
                .decode_slice   = dxva2_vc1_decode_slice,

            
                .end_frame      = dxva2_vc1_end_frame,

            
                .frame_params   = ff_dxva2_common_frame_params,

            
                .frame_priv_data_size = sizeof(struct dxva2_picture_context),

            
                .priv_data_size = sizeof(FFDXVASharedContext),

            
            };

            
            #endif


            #if CONFIG_VC1_D3D11VA_HWACCEL

            
            const FFHWAccel ff_vc1_d3d11va_hwaccel = {

            
                .p.name         = "vc1_d3d11va",

            
                .p.type         = AVMEDIA_TYPE_VIDEO,

            
                .p.id           = AV_CODEC_ID_VC1,

            
                .p.pix_fmt      = AV_PIX_FMT_D3D11VA_VLD,

            
                .init           = ff_dxva2_decode_init,

            
                .uninit         = ff_dxva2_decode_uninit,

            
                .start_frame    = dxva2_vc1_start_frame,

            
                .decode_slice   = dxva2_vc1_decode_slice,

            
                .end_frame      = dxva2_vc1_end_frame,

            
                .frame_params   = ff_dxva2_common_frame_params,

            
                .frame_priv_data_size = sizeof(struct dxva2_picture_context),

            
                .priv_data_size = sizeof(FFDXVASharedContext),

            
            };

            
            #endif


            #if CONFIG_VC1_D3D11VA2_HWACCEL

            
            const FFHWAccel ff_vc1_d3d11va2_hwaccel = {

            
                .p.name         = "vc1_d3d11va2",

            
                .p.type         = AVMEDIA_TYPE_VIDEO,

            
                .p.id           = AV_CODEC_ID_VC1,

            
                .p.pix_fmt      = AV_PIX_FMT_D3D11,

            
                .init           = ff_dxva2_decode_init,

            
                .uninit         = ff_dxva2_decode_uninit,

            
                .start_frame    = dxva2_vc1_start_frame,

            
                .decode_slice   = dxva2_vc1_decode_slice,

            
                .end_frame      = dxva2_vc1_end_frame,

            
                .frame_params   = ff_dxva2_common_frame_params,

            
                .frame_priv_data_size = sizeof(struct dxva2_picture_context),

            
                .priv_data_size = sizeof(FFDXVASharedContext),

            
            };

            
            #endif
	/*
	* DXVA2 WMV3/VC-1 HW acceleration.
	*
	* copyright (c) 2010 Laurent Aimar
	*
	* This file is part of FFmpeg.
	*
	* FFmpeg is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* FFmpeg is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with FFmpeg; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	#include "config_components.h"

	#include "dxva2_internal.h"
	#include "hwaccel_internal.h"
	#include "mpegutils.h"
	#include "mpegvideodec.h"
	#include "vc1.h"
	#include "vc1data.h"

	#define MAX_SLICES 1024

	struct dxva2_picture_context {
	DXVA_PictureParameters pp;
	unsigned slice_count;
	DXVA_SliceInfo slice[MAX_SLICES];

	const uint8_t *bitstream;
	unsigned bitstream_size;
	};

	void ff_dxva2_vc1_fill_picture_parameters(AVCodecContext *avctx,
	AVDXVAContext *ctx,
	DXVA_PictureParameters *pp)
	{
	const VC1Context *v = avctx->priv_data;
	const MpegEncContext *s = &v->s;
	const Picture *current_picture = s->current_picture_ptr;
	int intcomp = 0;

	// determine if intensity compensation is needed
	if (s->pict_type == AV_PICTURE_TYPE_P) {
	if ((v->fcm == ILACE_FRAME && v->intcomp) \|\| (v->fcm != ILACE_FRAME && v->mv_mode == MV_PMODE_INTENSITY_COMP)) {
	if (v->lumscale != 32 \|\| v->lumshift != 0 \|\| (s->picture_structure != PICT_FRAME && (v->lumscale2 != 32 \|\| v->lumshift2 != 0)))
	intcomp = 1;
	}
	}

	memset(pp, 0, sizeof(*pp));
	if (s->pict_type != AV_PICTURE_TYPE_I && !v->bi_type)
	pp->wForwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->last_picture.f, 0);
	else
	pp->wForwardRefPictureIndex = 0xffff;
	if (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)
	pp->wBackwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->next_picture.f, 0);
	else
	pp->wBackwardRefPictureIndex = 0xffff;
	pp->wDecodedPictureIndex =
	pp->wDeblockedPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, current_picture->f, 1);
	if (v->profile == PROFILE_ADVANCED) {
	/* It is the cropped width/height -1 of the frame */
	pp->wPicWidthInMBminus1 = avctx->width - 1;
	pp->wPicHeightInMBminus1= avctx->height - 1;
	} else {
	/* It is the coded width/height in macroblock -1 of the frame */
	pp->wPicWidthInMBminus1 = s->mb_width - 1;
	pp->wPicHeightInMBminus1= s->mb_height - 1;
	}
	pp->bMacroblockWidthMinus1 = 15;
	pp->bMacroblockHeightMinus1 = 15;
	pp->bBlockWidthMinus1 = 7;
	pp->bBlockHeightMinus1 = 7;
	pp->bBPPminus1 = 7;
	if (s->picture_structure & PICT_TOP_FIELD)
	pp->bPicStructure \|= 0x01;
	if (s->picture_structure & PICT_BOTTOM_FIELD)
	pp->bPicStructure \|= 0x02;
	pp->bSecondField = v->interlace && v->fcm == ILACE_FIELD && v->second_field;
	pp->bPicIntra = s->pict_type == AV_PICTURE_TYPE_I \|\| v->bi_type;
	pp->bPicBackwardPrediction = s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type;
	pp->bBidirectionalAveragingMode = (1 << 7) \|
	((DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) != 0) << 6) \|
	((DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) != 0) << 5) \|
	(intcomp << 4) \|
	((v->profile == PROFILE_ADVANCED) << 3);
	pp->bMVprecisionAndChromaRelation = ((v->mv_mode == MV_PMODE_1MV_HPEL_BILIN) << 3) \|
	(1 << 2) \|
	(0 << 1) \|
	(!s->quarter_sample );
	pp->bChromaFormat = v->chromaformat;
	DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
	if (DXVA_CONTEXT_REPORT_ID(avctx, ctx) >= (1 << 16))
	DXVA_CONTEXT_REPORT_ID(avctx, ctx) = 1;
	pp->bPicScanFixed = DXVA_CONTEXT_REPORT_ID(avctx, ctx) >> 8;
	pp->bPicScanMethod = DXVA_CONTEXT_REPORT_ID(avctx, ctx) & 0xff;
	pp->bPicReadbackRequests = 0;
	pp->bRcontrol = v->rnd;
	pp->bPicSpatialResid8 = (v->panscanflag << 7) \|
	(v->refdist_flag << 6) \|
	(s->loop_filter << 5) \|
	(v->fastuvmc << 4) \|
	(v->extended_mv << 3) \|
	(v->dquant << 1) \|
	(v->vstransform );
	pp->bPicOverflowBlocks = (v->quantizer_mode << 6) \|
	(v->multires << 5) \|
	(v->resync_marker << 4) \|
	(v->rangered << 3) \|
	(s->max_b_frames );
	pp->bPicExtrapolation = (!v->interlace \|\| v->fcm == PROGRESSIVE) ? 1 : 2;
	pp->bPicDeblocked = ((!pp->bPicBackwardPrediction && v->overlap) << 6) \|
	((v->profile != PROFILE_ADVANCED && v->rangeredfrm) << 5) \|
	(s->loop_filter << 1);
	pp->bPicDeblockConfined = (v->postprocflag << 7) \|
	(v->broadcast << 6) \|
	(v->interlace << 5) \|
	(v->tfcntrflag << 4) \|
	(v->finterpflag << 3) \|
	((s->pict_type != AV_PICTURE_TYPE_B) << 2) \|
	(v->psf << 1) \|
	(v->extended_dmv );
	if (s->pict_type != AV_PICTURE_TYPE_I)
	pp->bPic4MVallowed = v->mv_mode == MV_PMODE_MIXED_MV \|\|
	(v->mv_mode == MV_PMODE_INTENSITY_COMP &&
	v->mv_mode2 == MV_PMODE_MIXED_MV);
	if (v->profile == PROFILE_ADVANCED)
	pp->bPicOBMC = (v->range_mapy_flag << 7) \|
	(v->range_mapy << 4) \|
	(v->range_mapuv_flag << 3) \|
	(v->range_mapuv );
	pp->bPicBinPB = 0;
	pp->bMV_RPS = (v->fcm == ILACE_FIELD && pp->bPicBackwardPrediction) ? v->refdist + 9 : 0;
	pp->bReservedBits = v->pq;
	if (s->picture_structure == PICT_FRAME) {
	if (intcomp) {
	pp->wBitstreamFcodes = v->lumscale;
	pp->wBitstreamPCEelements = v->lumshift;
	} else {
	pp->wBitstreamFcodes = 32;
	pp->wBitstreamPCEelements = 0;
	}
	} else {
	/* Syntax: (top_field_param << 8) \| bottom_field_param */
	if (intcomp) {
	pp->wBitstreamFcodes = (v->lumscale << 8) \| v->lumscale2;
	pp->wBitstreamPCEelements = (v->lumshift << 8) \| v->lumshift2;
	} else {
	pp->wBitstreamFcodes = (32 << 8) \| 32;
	pp->wBitstreamPCEelements = 0;
	}
	}
	pp->bBitstreamConcealmentNeed = 0;
	pp->bBitstreamConcealmentMethod = 0;
	}

	void ff_dxva2_vc1_fill_slice(AVCodecContext avctx, DXVA_SliceInfo slice,
	unsigned position, unsigned size)
	{
	const VC1Context *v = avctx->priv_data;
	const MpegEncContext *s = &v->s;

	memset(slice, 0, sizeof(*slice));
	slice->wHorizontalPosition = 0;
	slice->wVerticalPosition = s->mb_y;
	slice->dwSliceBitsInBuffer = 8 * size;
	slice->dwSliceDataLocation = position;
	slice->bStartCodeBitOffset = 0;
	slice->bReservedBits = (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type) ? v->bfraction_lut_index + 9 : 0;
	slice->wMBbitOffset = v->p_frame_skipped ? 0xffff : get_bits_count(&s->gb) + (avctx->codec_id == AV_CODEC_ID_VC1 ? 32 : 0);
	/* XXX We store the index of the first MB and it will be fixed later */
	slice->wNumberMBsInSlice = (s->mb_y >> v->field_mode) * s->mb_width + s->mb_x;
	slice->wQuantizerScaleCode = v->pq;
	slice->wBadSliceChopping = 0;
	}

	static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
	DECODER_BUFFER_DESC *bs,
	DECODER_BUFFER_DESC *sc)
	{
	const VC1Context *v = avctx->priv_data;
	AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
	const MpegEncContext *s = &v->s;
	struct dxva2_picture_context *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;

	static const uint8_t start_code[] = { 0, 0, 1, 0x0d };
	const unsigned start_code_size = avctx->codec_id == AV_CODEC_ID_VC1 ? sizeof(start_code) : 0;
	const unsigned mb_count = s->mb_width * (s->mb_height >> v->field_mode);
	DXVA_SliceInfo *slice = NULL;
	void *dxva_data_ptr;
	uint8_t dxva_data, current, *end;
	unsigned dxva_size;
	unsigned padding;
	unsigned i;
	unsigned type;

	#if CONFIG_D3D11VA
	if (ff_dxva2_is_d3d11(avctx)) {
	type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
	if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
	D3D11VA_CONTEXT(ctx)->decoder,
	type,
	&dxva_size, &dxva_data_ptr)))
	return -1;
	}
	#endif
	#if CONFIG_DXVA2
	if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
	type = DXVA2_BitStreamDateBufferType;
	if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
	type,
	&dxva_data_ptr, &dxva_size)))
	return -1;
	}
	#endif

	dxva_data = dxva_data_ptr;
	current = dxva_data;
	end = dxva_data + dxva_size;

	for (i = 0; i < ctx_pic->slice_count; i++) {
	unsigned position, size;
	slice = &ctx_pic->slice[i];
	position = slice->dwSliceDataLocation;
	size = slice->dwSliceBitsInBuffer / 8;
	if (start_code_size + size > end - current) {
	av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
	break;
	}
	slice->dwSliceDataLocation = current - dxva_data;

	if (i < ctx_pic->slice_count - 1)
	slice->wNumberMBsInSlice =
	slice[1].wNumberMBsInSlice - slice[0].wNumberMBsInSlice;
	else
	slice->wNumberMBsInSlice =
	mb_count - slice[0].wNumberMBsInSlice;

	/* write the appropriate frame, field or slice start code */
	if (start_code_size) {
	memcpy(current, start_code, start_code_size);
	if (i == 0 && v->second_field)
	current[3] = 0x0c;
	else if (i > 0)
	current[3] = 0x0b;

	current += start_code_size;
	slice->dwSliceBitsInBuffer += start_code_size * 8;
	}

	memcpy(current, &ctx_pic->bitstream[position], size);
	current += size;
	}
	padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
	if (slice && padding > 0) {
	memset(current, 0, padding);
	current += padding;
	slice->dwSliceBitsInBuffer += padding * 8;
	}

	#if CONFIG_D3D11VA
	if (ff_dxva2_is_d3d11(avctx))
	if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
	return -1;
	#endif
	#if CONFIG_DXVA2
	if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
	if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
	return -1;
	#endif
	if (i < ctx_pic->slice_count)
	return -1;

	#if CONFIG_D3D11VA
	if (ff_dxva2_is_d3d11(avctx)) {
	D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
	memset(dsc11, 0, sizeof(*dsc11));
	dsc11->BufferType = type;
	dsc11->DataSize = current - dxva_data;
	dsc11->NumMBsInBuffer = mb_count;

	type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
	}
	#endif
	#if CONFIG_DXVA2
	if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
	DXVA2_DecodeBufferDesc *dsc2 = bs;
	memset(dsc2, 0, sizeof(*dsc2));
	dsc2->CompressedBufferType = type;
	dsc2->DataSize = current - dxva_data;
	dsc2->NumMBsInBuffer = mb_count;

	type = DXVA2_SliceControlBufferType;
	}
	#endif

	return ff_dxva2_commit_buffer(avctx, ctx, sc,
	type,
	ctx_pic->slice,
	ctx_pic->slice_count * sizeof(*ctx_pic->slice),
	mb_count);
	}

	static int dxva2_vc1_start_frame(AVCodecContext *avctx,
	av_unused const uint8_t *buffer,
	av_unused uint32_t size)
	{
	const VC1Context *v = avctx->priv_data;
	AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
	struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;

	if (!DXVA_CONTEXT_VALID(avctx, ctx))
	return -1;
	av_assert0(ctx_pic);

	ff_dxva2_vc1_fill_picture_parameters(avctx, ctx, &ctx_pic->pp);

	ctx_pic->slice_count = 0;
	ctx_pic->bitstream_size = 0;
	ctx_pic->bitstream = NULL;
	return 0;
	}

	static int dxva2_vc1_decode_slice(AVCodecContext *avctx,
	const uint8_t *buffer,
	uint32_t size)
	{
	const VC1Context *v = avctx->priv_data;
	const Picture *current_picture = v->s.current_picture_ptr;
	struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
	unsigned position;

	if (ctx_pic->slice_count >= MAX_SLICES) {
	avpriv_request_sample(avctx, "%d slices in dxva2",
	ctx_pic->slice_count);
	return -1;
	}

	if (avctx->codec_id == AV_CODEC_ID_VC1 &&
	size >= 4 && IS_MARKER(AV_RB32(buffer))) {
	buffer += 4;
	size -= 4;
	}

	if (!ctx_pic->bitstream)
	ctx_pic->bitstream = buffer;
	ctx_pic->bitstream_size += size;

	position = buffer - ctx_pic->bitstream;
	ff_dxva2_vc1_fill_slice(avctx, &ctx_pic->slice[ctx_pic->slice_count++], position, size);
	return 0;
	}

	static int dxva2_vc1_end_frame(AVCodecContext *avctx)
	{
	VC1Context *v = avctx->priv_data;
	struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
	int ret;

	if (ctx_pic->slice_count <= 0 \|\| ctx_pic->bitstream_size <= 0)
	return -1;

	ret = ff_dxva2_common_end_frame(avctx, v->s.current_picture_ptr->f,
	&ctx_pic->pp, sizeof(ctx_pic->pp),
	NULL, 0,
	commit_bitstream_and_slice_buffer);
	return ret;
	}

	#if CONFIG_WMV3_DXVA2_HWACCEL
	const FFHWAccel ff_wmv3_dxva2_hwaccel = {
	.p.name = "wmv3_dxva2",
	.p.type = AVMEDIA_TYPE_VIDEO,
	.p.id = AV_CODEC_ID_WMV3,
	.p.pix_fmt = AV_PIX_FMT_DXVA2_VLD,
	.init = ff_dxva2_decode_init,
	.uninit = ff_dxva2_decode_uninit,
	.start_frame = dxva2_vc1_start_frame,
	.decode_slice = dxva2_vc1_decode_slice,
	.end_frame = dxva2_vc1_end_frame,
	.frame_params = ff_dxva2_common_frame_params,
	.frame_priv_data_size = sizeof(struct dxva2_picture_context),
	.priv_data_size = sizeof(FFDXVASharedContext),
	};
	#endif

	#if CONFIG_VC1_DXVA2_HWACCEL
	const FFHWAccel ff_vc1_dxva2_hwaccel = {
	.p.name = "vc1_dxva2",
	.p.type = AVMEDIA_TYPE_VIDEO,
	.p.id = AV_CODEC_ID_VC1,
	.p.pix_fmt = AV_PIX_FMT_DXVA2_VLD,
	.init = ff_dxva2_decode_init,
	.uninit = ff_dxva2_decode_uninit,
	.start_frame = dxva2_vc1_start_frame,
	.decode_slice = dxva2_vc1_decode_slice,
	.end_frame = dxva2_vc1_end_frame,
	.frame_params = ff_dxva2_common_frame_params,
	.frame_priv_data_size = sizeof(struct dxva2_picture_context),
	.priv_data_size = sizeof(FFDXVASharedContext),
	};
	#endif

	#if CONFIG_WMV3_D3D11VA_HWACCEL
	const FFHWAccel ff_wmv3_d3d11va_hwaccel = {
	.p.name = "wmv3_d3d11va",
	.p.type = AVMEDIA_TYPE_VIDEO,
	.p.id = AV_CODEC_ID_WMV3,
	.p.pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
	.init = ff_dxva2_decode_init,
	.uninit = ff_dxva2_decode_uninit,
	.start_frame = dxva2_vc1_start_frame,
	.decode_slice = dxva2_vc1_decode_slice,
	.end_frame = dxva2_vc1_end_frame,
	.frame_params = ff_dxva2_common_frame_params,
	.frame_priv_data_size = sizeof(struct dxva2_picture_context),
	.priv_data_size = sizeof(FFDXVASharedContext),
	};
	#endif

	#if CONFIG_WMV3_D3D11VA2_HWACCEL
	const FFHWAccel ff_wmv3_d3d11va2_hwaccel = {
	.p.name = "wmv3_d3d11va2",
	.p.type = AVMEDIA_TYPE_VIDEO,
	.p.id = AV_CODEC_ID_WMV3,
	.p.pix_fmt = AV_PIX_FMT_D3D11,
	.init = ff_dxva2_decode_init,
	.uninit = ff_dxva2_decode_uninit,
	.start_frame = dxva2_vc1_start_frame,
	.decode_slice = dxva2_vc1_decode_slice,
	.end_frame = dxva2_vc1_end_frame,
	.frame_params = ff_dxva2_common_frame_params,
	.frame_priv_data_size = sizeof(struct dxva2_picture_context),
	.priv_data_size = sizeof(FFDXVASharedContext),
	};
	#endif

	#if CONFIG_VC1_D3D11VA_HWACCEL
	const FFHWAccel ff_vc1_d3d11va_hwaccel = {
	.p.name = "vc1_d3d11va",
	.p.type = AVMEDIA_TYPE_VIDEO,
	.p.id = AV_CODEC_ID_VC1,
	.p.pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
	.init = ff_dxva2_decode_init,
	.uninit = ff_dxva2_decode_uninit,
	.start_frame = dxva2_vc1_start_frame,
	.decode_slice = dxva2_vc1_decode_slice,
	.end_frame = dxva2_vc1_end_frame,
	.frame_params = ff_dxva2_common_frame_params,
	.frame_priv_data_size = sizeof(struct dxva2_picture_context),
	.priv_data_size = sizeof(FFDXVASharedContext),
	};
	#endif

	#if CONFIG_VC1_D3D11VA2_HWACCEL
	const FFHWAccel ff_vc1_d3d11va2_hwaccel = {
	.p.name = "vc1_d3d11va2",
	.p.type = AVMEDIA_TYPE_VIDEO,
	.p.id = AV_CODEC_ID_VC1,
	.p.pix_fmt = AV_PIX_FMT_D3D11,
	.init = ff_dxva2_decode_init,
	.uninit = ff_dxva2_decode_uninit,
	.start_frame = dxva2_vc1_start_frame,
	.decode_slice = dxva2_vc1_decode_slice,
	.end_frame = dxva2_vc1_end_frame,
	.frame_params = ff_dxva2_common_frame_params,
	.frame_priv_data_size = sizeof(struct dxva2_picture_context),
	.priv_data_size = sizeof(FFDXVASharedContext),
	};
	#endif