2010-06-18 20:07:43 +00:00
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/*
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* MPEG-2 HW acceleration.
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*
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* copyright (c) 2010 Laurent Aimar
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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2014-03-06 13:40:43 +00:00
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#include "libavutil/log.h"
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2014-02-28 12:40:54 +00:00
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#include "mpegutils.h"
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2015-09-12 14:11:05 +00:00
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#include "mpegvideo.h"
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2010-06-18 20:07:43 +00:00
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2015-10-13 21:20:33 +00:00
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// The headers above may include w32threads.h, which uses the original
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// _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
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// potentially newer version.
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#include "dxva2_internal.h"
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2014-01-27 07:16:13 +00:00
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#define MAX_SLICES 1024
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2010-06-18 20:07:43 +00:00
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struct dxva2_picture_context {
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DXVA_PictureParameters pp;
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DXVA_QmatrixData qm;
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unsigned slice_count;
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DXVA_SliceInfo slice[MAX_SLICES];
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const uint8_t *bitstream;
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unsigned bitstream_size;
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};
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static void fill_picture_parameters(AVCodecContext *avctx,
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2015-05-11 08:52:47 +00:00
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AVDXVAContext *ctx,
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2010-06-18 20:07:43 +00:00
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const struct MpegEncContext *s,
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DXVA_PictureParameters *pp)
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{
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const Picture *current_picture = s->current_picture_ptr;
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int is_field = s->picture_structure != PICT_FRAME;
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memset(pp, 0, sizeof(*pp));
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2015-05-11 08:52:47 +00:00
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pp->wDecodedPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, current_picture->f);
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2010-06-18 20:07:43 +00:00
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pp->wDeblockedPictureIndex = 0;
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2011-04-27 23:40:44 +00:00
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if (s->pict_type != AV_PICTURE_TYPE_I)
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2015-05-11 08:52:47 +00:00
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pp->wForwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->last_picture.f);
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2010-06-18 20:07:43 +00:00
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else
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pp->wForwardRefPictureIndex = 0xffff;
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2011-04-27 23:40:44 +00:00
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if (s->pict_type == AV_PICTURE_TYPE_B)
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2015-05-11 08:52:47 +00:00
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pp->wBackwardRefPictureIndex = ff_dxva2_get_surface_index(avctx, ctx, s->next_picture.f);
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2010-06-18 20:07:43 +00:00
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else
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pp->wBackwardRefPictureIndex = 0xffff;
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pp->wPicWidthInMBminus1 = s->mb_width - 1;
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pp->wPicHeightInMBminus1 = (s->mb_height >> is_field) - 1;
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pp->bMacroblockWidthMinus1 = 15;
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pp->bMacroblockHeightMinus1 = 15;
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pp->bBlockWidthMinus1 = 7;
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pp->bBlockHeightMinus1 = 7;
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pp->bBPPminus1 = 7;
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pp->bPicStructure = s->picture_structure;
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pp->bSecondField = is_field && !s->first_field;
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2011-04-27 23:40:44 +00:00
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pp->bPicIntra = s->pict_type == AV_PICTURE_TYPE_I;
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pp->bPicBackwardPrediction = s->pict_type == AV_PICTURE_TYPE_B;
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2010-06-18 20:07:43 +00:00
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pp->bBidirectionalAveragingMode = 0;
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pp->bMVprecisionAndChromaRelation= 0; /* FIXME */
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pp->bChromaFormat = s->chroma_format;
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pp->bPicScanFixed = 1;
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pp->bPicScanMethod = s->alternate_scan ? 1 : 0;
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pp->bPicReadbackRequests = 0;
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pp->bRcontrol = 0;
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pp->bPicSpatialResid8 = 0;
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pp->bPicOverflowBlocks = 0;
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pp->bPicExtrapolation = 0;
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pp->bPicDeblocked = 0;
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pp->bPicDeblockConfined = 0;
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pp->bPic4MVallowed = 0;
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pp->bPicOBMC = 0;
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pp->bPicBinPB = 0;
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pp->bMV_RPS = 0;
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pp->bReservedBits = 0;
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pp->wBitstreamFcodes = (s->mpeg_f_code[0][0] << 12) |
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(s->mpeg_f_code[0][1] << 8) |
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(s->mpeg_f_code[1][0] << 4) |
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(s->mpeg_f_code[1][1] );
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pp->wBitstreamPCEelements = (s->intra_dc_precision << 14) |
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(s->picture_structure << 12) |
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(s->top_field_first << 11) |
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(s->frame_pred_frame_dct << 10) |
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(s->concealment_motion_vectors << 9) |
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(s->q_scale_type << 8) |
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(s->intra_vlc_format << 7) |
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(s->alternate_scan << 6) |
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(s->repeat_first_field << 5) |
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(s->chroma_420_type << 4) |
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(s->progressive_frame << 3);
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pp->bBitstreamConcealmentNeed = 0;
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pp->bBitstreamConcealmentMethod = 0;
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}
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static void fill_quantization_matrices(AVCodecContext *avctx,
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2015-05-11 08:52:47 +00:00
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AVDXVAContext *ctx,
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2010-06-18 20:07:43 +00:00
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const struct MpegEncContext *s,
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DXVA_QmatrixData *qm)
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{
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int i;
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for (i = 0; i < 4; i++)
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qm->bNewQmatrix[i] = 1;
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for (i = 0; i < 64; i++) {
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2014-01-24 10:55:16 +00:00
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int n = s->idsp.idct_permutation[ff_zigzag_direct[i]];
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2011-11-16 06:48:23 +00:00
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qm->Qmatrix[0][i] = s->intra_matrix[n];
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qm->Qmatrix[1][i] = s->inter_matrix[n];
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qm->Qmatrix[2][i] = s->chroma_intra_matrix[n];
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qm->Qmatrix[3][i] = s->chroma_inter_matrix[n];
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2010-06-18 20:07:43 +00:00
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}
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}
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static void fill_slice(AVCodecContext *avctx,
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const struct MpegEncContext *s,
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DXVA_SliceInfo *slice,
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unsigned position,
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const uint8_t *buffer, unsigned size)
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{
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int is_field = s->picture_structure != PICT_FRAME;
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GetBitContext gb;
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memset(slice, 0, sizeof(*slice));
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slice->wHorizontalPosition = s->mb_x;
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slice->wVerticalPosition = s->mb_y >> is_field;
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slice->dwSliceBitsInBuffer = 8 * size;
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slice->dwSliceDataLocation = position;
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slice->bStartCodeBitOffset = 0;
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slice->bReservedBits = 0;
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/* XXX We store the index of the first MB and it will be fixed later */
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slice->wNumberMBsInSlice = (s->mb_y >> is_field) * s->mb_width + s->mb_x;
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slice->wBadSliceChopping = 0;
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init_get_bits(&gb, &buffer[4], 8 * (size - 4));
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slice->wQuantizerScaleCode = get_bits(&gb, 5);
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2013-10-30 17:28:00 +00:00
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skip_1stop_8data_bits(&gb);
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2010-06-18 20:07:43 +00:00
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slice->wMBbitOffset = 4 * 8 + get_bits_count(&gb);
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}
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static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
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2015-05-11 08:52:47 +00:00
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DECODER_BUFFER_DESC *bs,
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DECODER_BUFFER_DESC *sc)
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2010-06-18 20:07:43 +00:00
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{
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const struct MpegEncContext *s = avctx->priv_data;
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2017-06-06 16:51:09 +00:00
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AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
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2010-06-18 20:07:43 +00:00
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struct dxva2_picture_context *ctx_pic =
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2012-10-08 05:50:14 +00:00
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s->current_picture_ptr->hwaccel_picture_private;
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2010-06-18 20:07:43 +00:00
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const int is_field = s->picture_structure != PICT_FRAME;
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const unsigned mb_count = s->mb_width * (s->mb_height >> is_field);
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2014-08-15 18:51:01 +00:00
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void *dxva_data_ptr;
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2010-06-18 20:07:43 +00:00
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uint8_t *dxva_data, *current, *end;
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unsigned dxva_size;
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unsigned i;
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2015-05-11 08:52:47 +00:00
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unsigned type;
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2010-06-18 20:07:43 +00:00
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2015-05-11 08:52:47 +00:00
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#if CONFIG_D3D11VA
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2017-06-06 16:51:09 +00:00
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if (ff_dxva2_is_d3d11(avctx)) {
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2015-05-11 08:52:47 +00:00
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type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
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if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
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D3D11VA_CONTEXT(ctx)->decoder,
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type,
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&dxva_size, &dxva_data_ptr)))
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return -1;
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}
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#endif
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#if CONFIG_DXVA2
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if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
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type = DXVA2_BitStreamDateBufferType;
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if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
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type,
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&dxva_data_ptr, &dxva_size)))
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return -1;
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}
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#endif
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2014-08-15 18:51:01 +00:00
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dxva_data = dxva_data_ptr;
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2010-06-18 20:07:43 +00:00
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current = dxva_data;
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end = dxva_data + dxva_size;
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for (i = 0; i < ctx_pic->slice_count; i++) {
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DXVA_SliceInfo *slice = &ctx_pic->slice[i];
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unsigned position = slice->dwSliceDataLocation;
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unsigned size = slice->dwSliceBitsInBuffer / 8;
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if (size > end - current) {
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av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
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break;
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}
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slice->dwSliceDataLocation = current - dxva_data;
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if (i < ctx_pic->slice_count - 1)
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slice->wNumberMBsInSlice =
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slice[1].wNumberMBsInSlice - slice[0].wNumberMBsInSlice;
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else
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slice->wNumberMBsInSlice =
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mb_count - slice[0].wNumberMBsInSlice;
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memcpy(current, &ctx_pic->bitstream[position], size);
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current += size;
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}
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2015-05-11 08:52:47 +00:00
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#if CONFIG_D3D11VA
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2017-06-06 16:51:09 +00:00
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if (ff_dxva2_is_d3d11(avctx))
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2015-05-11 08:52:47 +00:00
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if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
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return -1;
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#endif
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#if CONFIG_DXVA2
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if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
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if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
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return -1;
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#endif
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2010-06-18 20:07:43 +00:00
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if (i < ctx_pic->slice_count)
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return -1;
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2015-05-11 08:52:47 +00:00
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#if CONFIG_D3D11VA
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2017-06-06 16:51:09 +00:00
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if (ff_dxva2_is_d3d11(avctx)) {
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2015-05-11 08:52:47 +00:00
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D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
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memset(dsc11, 0, sizeof(*dsc11));
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dsc11->BufferType = type;
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dsc11->DataSize = current - dxva_data;
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dsc11->NumMBsInBuffer = mb_count;
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type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
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}
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#endif
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#if CONFIG_DXVA2
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if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
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DXVA2_DecodeBufferDesc *dsc2 = bs;
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memset(dsc2, 0, sizeof(*dsc2));
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dsc2->CompressedBufferType = type;
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dsc2->DataSize = current - dxva_data;
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dsc2->NumMBsInBuffer = mb_count;
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type = DXVA2_SliceControlBufferType;
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}
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#endif
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2010-06-18 20:07:43 +00:00
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return ff_dxva2_commit_buffer(avctx, ctx, sc,
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2015-05-11 08:52:47 +00:00
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type,
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2010-06-18 20:07:43 +00:00
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ctx_pic->slice,
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ctx_pic->slice_count * sizeof(*ctx_pic->slice),
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mb_count);
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}
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2013-02-22 20:25:00 +00:00
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static int dxva2_mpeg2_start_frame(AVCodecContext *avctx,
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av_unused const uint8_t *buffer,
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av_unused uint32_t size)
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2010-06-18 20:07:43 +00:00
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{
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const struct MpegEncContext *s = avctx->priv_data;
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2017-06-06 16:51:09 +00:00
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AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
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2010-06-18 20:07:43 +00:00
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struct dxva2_picture_context *ctx_pic =
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2012-10-08 05:50:14 +00:00
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s->current_picture_ptr->hwaccel_picture_private;
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2010-06-18 20:07:43 +00:00
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2017-01-13 13:01:05 +00:00
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if (!DXVA_CONTEXT_VALID(avctx, ctx))
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2010-06-18 20:07:43 +00:00
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return -1;
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assert(ctx_pic);
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fill_picture_parameters(avctx, ctx, s, &ctx_pic->pp);
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fill_quantization_matrices(avctx, ctx, s, &ctx_pic->qm);
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ctx_pic->slice_count = 0;
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ctx_pic->bitstream_size = 0;
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ctx_pic->bitstream = NULL;
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return 0;
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}
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2013-02-22 20:25:00 +00:00
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static int dxva2_mpeg2_decode_slice(AVCodecContext *avctx,
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const uint8_t *buffer, uint32_t size)
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2010-06-18 20:07:43 +00:00
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{
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const struct MpegEncContext *s = avctx->priv_data;
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struct dxva2_picture_context *ctx_pic =
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2012-10-08 05:50:14 +00:00
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s->current_picture_ptr->hwaccel_picture_private;
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2010-06-18 20:07:43 +00:00
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unsigned position;
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2014-03-06 13:40:43 +00:00
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if (ctx_pic->slice_count >= MAX_SLICES) {
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avpriv_request_sample(avctx, "%d slices in dxva2",
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ctx_pic->slice_count);
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2010-06-18 20:07:43 +00:00
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return -1;
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2014-03-06 13:40:43 +00:00
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}
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2010-06-18 20:07:43 +00:00
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|
|
if (!ctx_pic->bitstream)
|
|
|
|
ctx_pic->bitstream = buffer;
|
|
|
|
ctx_pic->bitstream_size += size;
|
|
|
|
|
|
|
|
position = buffer - ctx_pic->bitstream;
|
|
|
|
fill_slice(avctx, s, &ctx_pic->slice[ctx_pic->slice_count++], position,
|
|
|
|
buffer, size);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-02-22 20:25:00 +00:00
|
|
|
static int dxva2_mpeg2_end_frame(AVCodecContext *avctx)
|
2010-06-18 20:07:43 +00:00
|
|
|
{
|
|
|
|
struct MpegEncContext *s = avctx->priv_data;
|
|
|
|
struct dxva2_picture_context *ctx_pic =
|
2012-10-08 05:50:14 +00:00
|
|
|
s->current_picture_ptr->hwaccel_picture_private;
|
2013-02-03 10:10:05 +00:00
|
|
|
int ret;
|
2010-06-18 20:07:43 +00:00
|
|
|
|
|
|
|
if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
|
|
|
|
return -1;
|
2014-03-31 17:46:29 +00:00
|
|
|
ret = ff_dxva2_common_end_frame(avctx, s->current_picture_ptr->f,
|
2013-02-03 10:10:05 +00:00
|
|
|
&ctx_pic->pp, sizeof(ctx_pic->pp),
|
|
|
|
&ctx_pic->qm, sizeof(ctx_pic->qm),
|
|
|
|
commit_bitstream_and_slice_buffer);
|
|
|
|
if (!ret)
|
|
|
|
ff_mpeg_draw_horiz_band(s, 0, avctx->height);
|
|
|
|
return ret;
|
2010-06-18 20:07:43 +00:00
|
|
|
}
|
|
|
|
|
2015-05-11 08:52:47 +00:00
|
|
|
#if CONFIG_MPEG2_DXVA2_HWACCEL
|
2017-11-04 18:53:26 +00:00
|
|
|
const AVHWAccel ff_mpeg2_dxva2_hwaccel = {
|
2010-06-18 20:07:43 +00:00
|
|
|
.name = "mpeg2_dxva2",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2012-08-05 09:11:04 +00:00
|
|
|
.id = AV_CODEC_ID_MPEG2VIDEO,
|
2012-10-06 10:10:34 +00:00
|
|
|
.pix_fmt = AV_PIX_FMT_DXVA2_VLD,
|
2017-06-07 15:11:17 +00:00
|
|
|
.init = ff_dxva2_decode_init,
|
|
|
|
.uninit = ff_dxva2_decode_uninit,
|
2013-02-22 20:25:00 +00:00
|
|
|
.start_frame = dxva2_mpeg2_start_frame,
|
|
|
|
.decode_slice = dxva2_mpeg2_decode_slice,
|
|
|
|
.end_frame = dxva2_mpeg2_end_frame,
|
2017-10-19 14:38:20 +00:00
|
|
|
.frame_params = ff_dxva2_common_frame_params,
|
2014-03-06 17:19:52 +00:00
|
|
|
.frame_priv_data_size = sizeof(struct dxva2_picture_context),
|
2017-06-07 15:11:17 +00:00
|
|
|
.priv_data_size = sizeof(FFDXVASharedContext),
|
2010-06-18 20:07:43 +00:00
|
|
|
};
|
2015-05-11 08:52:47 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#if CONFIG_MPEG2_D3D11VA_HWACCEL
|
2017-11-04 18:53:26 +00:00
|
|
|
const AVHWAccel ff_mpeg2_d3d11va_hwaccel = {
|
2015-05-11 08:52:47 +00:00
|
|
|
.name = "mpeg2_d3d11va",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.id = AV_CODEC_ID_MPEG2VIDEO,
|
|
|
|
.pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
|
2017-06-07 15:11:17 +00:00
|
|
|
.init = ff_dxva2_decode_init,
|
|
|
|
.uninit = ff_dxva2_decode_uninit,
|
2015-05-11 08:52:47 +00:00
|
|
|
.start_frame = dxva2_mpeg2_start_frame,
|
|
|
|
.decode_slice = dxva2_mpeg2_decode_slice,
|
|
|
|
.end_frame = dxva2_mpeg2_end_frame,
|
2017-10-19 14:38:20 +00:00
|
|
|
.frame_params = ff_dxva2_common_frame_params,
|
2015-05-11 08:52:47 +00:00
|
|
|
.frame_priv_data_size = sizeof(struct dxva2_picture_context),
|
2017-06-07 15:11:17 +00:00
|
|
|
.priv_data_size = sizeof(FFDXVASharedContext),
|
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if CONFIG_MPEG2_D3D11VA2_HWACCEL
|
2017-11-04 18:53:26 +00:00
|
|
|
const AVHWAccel ff_mpeg2_d3d11va2_hwaccel = {
|
2017-06-07 15:11:17 +00:00
|
|
|
.name = "mpeg2_d3d11va2",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.id = AV_CODEC_ID_MPEG2VIDEO,
|
|
|
|
.pix_fmt = AV_PIX_FMT_D3D11,
|
|
|
|
.init = ff_dxva2_decode_init,
|
|
|
|
.uninit = ff_dxva2_decode_uninit,
|
|
|
|
.start_frame = dxva2_mpeg2_start_frame,
|
|
|
|
.decode_slice = dxva2_mpeg2_decode_slice,
|
|
|
|
.end_frame = dxva2_mpeg2_end_frame,
|
2017-10-19 14:38:20 +00:00
|
|
|
.frame_params = ff_dxva2_common_frame_params,
|
2017-06-07 15:11:17 +00:00
|
|
|
.frame_priv_data_size = sizeof(struct dxva2_picture_context),
|
|
|
|
.priv_data_size = sizeof(FFDXVASharedContext),
|
2015-05-11 08:52:47 +00:00
|
|
|
};
|
|
|
|
#endif
|