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Diffstat (limited to 'ffmpeg/libavcodec/dxva2_mpeg2.c')
-rw-r--r--ffmpeg/libavcodec/dxva2_mpeg2.c275
1 files changed, 0 insertions, 275 deletions
diff --git a/ffmpeg/libavcodec/dxva2_mpeg2.c b/ffmpeg/libavcodec/dxva2_mpeg2.c
deleted file mode 100644
index 1827dd5..0000000
--- a/ffmpeg/libavcodec/dxva2_mpeg2.c
+++ /dev/null
@@ -1,275 +0,0 @@
-/*
- * MPEG-2 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 "dxva2_internal.h"
-
-#define MAX_SLICES (SLICE_MAX_START_CODE - SLICE_MIN_START_CODE + 1)
-struct dxva2_picture_context {
- DXVA_PictureParameters pp;
- DXVA_QmatrixData qm;
- unsigned slice_count;
- DXVA_SliceInfo slice[MAX_SLICES];
-
- const uint8_t *bitstream;
- unsigned bitstream_size;
-};
-
-static void fill_picture_parameters(AVCodecContext *avctx,
- struct dxva_context *ctx,
- const struct MpegEncContext *s,
- DXVA_PictureParameters *pp)
-{
- const Picture *current_picture = s->current_picture_ptr;
- int is_field = s->picture_structure != PICT_FRAME;
-
- memset(pp, 0, sizeof(*pp));
- pp->wDecodedPictureIndex = ff_dxva2_get_surface_index(ctx, current_picture);
- pp->wDeblockedPictureIndex = 0;
- if (s->pict_type != AV_PICTURE_TYPE_I)
- pp->wForwardRefPictureIndex = ff_dxva2_get_surface_index(ctx, &s->last_picture);
- else
- pp->wForwardRefPictureIndex = 0xffff;
- if (s->pict_type == AV_PICTURE_TYPE_B)
- pp->wBackwardRefPictureIndex = ff_dxva2_get_surface_index(ctx, &s->next_picture);
- else
- pp->wBackwardRefPictureIndex = 0xffff;
- pp->wPicWidthInMBminus1 = s->mb_width - 1;
- pp->wPicHeightInMBminus1 = (s->mb_height >> is_field) - 1;
- pp->bMacroblockWidthMinus1 = 15;
- pp->bMacroblockHeightMinus1 = 15;
- pp->bBlockWidthMinus1 = 7;
- pp->bBlockHeightMinus1 = 7;
- pp->bBPPminus1 = 7;
- pp->bPicStructure = s->picture_structure;
- pp->bSecondField = is_field && !s->first_field;
- pp->bPicIntra = s->pict_type == AV_PICTURE_TYPE_I;
- pp->bPicBackwardPrediction = s->pict_type == AV_PICTURE_TYPE_B;
- pp->bBidirectionalAveragingMode = 0;
- pp->bMVprecisionAndChromaRelation= 0; /* FIXME */
- pp->bChromaFormat = s->chroma_format;
- pp->bPicScanFixed = 1;
- pp->bPicScanMethod = s->alternate_scan ? 1 : 0;
- pp->bPicReadbackRequests = 0;
- pp->bRcontrol = 0;
- pp->bPicSpatialResid8 = 0;
- pp->bPicOverflowBlocks = 0;
- pp->bPicExtrapolation = 0;
- pp->bPicDeblocked = 0;
- pp->bPicDeblockConfined = 0;
- pp->bPic4MVallowed = 0;
- pp->bPicOBMC = 0;
- pp->bPicBinPB = 0;
- pp->bMV_RPS = 0;
- pp->bReservedBits = 0;
- pp->wBitstreamFcodes = (s->mpeg_f_code[0][0] << 12) |
- (s->mpeg_f_code[0][1] << 8) |
- (s->mpeg_f_code[1][0] << 4) |
- (s->mpeg_f_code[1][1] );
- pp->wBitstreamPCEelements = (s->intra_dc_precision << 14) |
- (s->picture_structure << 12) |
- (s->top_field_first << 11) |
- (s->frame_pred_frame_dct << 10) |
- (s->concealment_motion_vectors << 9) |
- (s->q_scale_type << 8) |
- (s->intra_vlc_format << 7) |
- (s->alternate_scan << 6) |
- (s->repeat_first_field << 5) |
- (s->chroma_420_type << 4) |
- (s->progressive_frame << 3);
- pp->bBitstreamConcealmentNeed = 0;
- pp->bBitstreamConcealmentMethod = 0;
-}
-
-static void fill_quantization_matrices(AVCodecContext *avctx,
- struct dxva_context *ctx,
- const struct MpegEncContext *s,
- DXVA_QmatrixData *qm)
-{
- int i;
- for (i = 0; i < 4; i++)
- qm->bNewQmatrix[i] = 1;
- for (i = 0; i < 64; i++) {
- int n = s->dsp.idct_permutation[ff_zigzag_direct[i]];
- qm->Qmatrix[0][i] = s->intra_matrix[n];
- qm->Qmatrix[1][i] = s->inter_matrix[n];
- qm->Qmatrix[2][i] = s->chroma_intra_matrix[n];
- qm->Qmatrix[3][i] = s->chroma_inter_matrix[n];
- }
-}
-
-static void fill_slice(AVCodecContext *avctx,
- const struct MpegEncContext *s,
- DXVA_SliceInfo *slice,
- unsigned position,
- const uint8_t *buffer, unsigned size)
-{
- int is_field = s->picture_structure != PICT_FRAME;
- GetBitContext gb;
-
- memset(slice, 0, sizeof(*slice));
- slice->wHorizontalPosition = s->mb_x;
- slice->wVerticalPosition = s->mb_y >> is_field;
- slice->dwSliceBitsInBuffer = 8 * size;
- slice->dwSliceDataLocation = position;
- slice->bStartCodeBitOffset = 0;
- slice->bReservedBits = 0;
- /* XXX We store the index of the first MB and it will be fixed later */
- slice->wNumberMBsInSlice = (s->mb_y >> is_field) * s->mb_width + s->mb_x;
- slice->wBadSliceChopping = 0;
-
- init_get_bits(&gb, &buffer[4], 8 * (size - 4));
-
- slice->wQuantizerScaleCode = get_bits(&gb, 5);
- skip_1stop_8data_bits(&gb);
-
- slice->wMBbitOffset = 4 * 8 + get_bits_count(&gb);
-}
-static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
- DXVA2_DecodeBufferDesc *bs,
- DXVA2_DecodeBufferDesc *sc)
-{
- const struct MpegEncContext *s = avctx->priv_data;
- struct dxva_context *ctx = avctx->hwaccel_context;
- struct dxva2_picture_context *ctx_pic =
- s->current_picture_ptr->hwaccel_picture_private;
- const int is_field = s->picture_structure != PICT_FRAME;
- const unsigned mb_count = s->mb_width * (s->mb_height >> is_field);
- uint8_t *dxva_data, *current, *end;
- unsigned dxva_size;
- unsigned i;
-
- if (FAILED(IDirectXVideoDecoder_GetBuffer(ctx->decoder,
- DXVA2_BitStreamDateBufferType,
- (void **)&dxva_data, &dxva_size)))
- return -1;
- current = dxva_data;
- end = dxva_data + dxva_size;
-
- for (i = 0; i < ctx_pic->slice_count; i++) {
- DXVA_SliceInfo *slice = &ctx_pic->slice[i];
- unsigned position = slice->dwSliceDataLocation;
- unsigned size = slice->dwSliceBitsInBuffer / 8;
- if (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;
-
- memcpy(current, &ctx_pic->bitstream[position], size);
- current += size;
- }
- if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(ctx->decoder,
- DXVA2_BitStreamDateBufferType)))
- return -1;
- if (i < ctx_pic->slice_count)
- return -1;
-
- memset(bs, 0, sizeof(*bs));
- bs->CompressedBufferType = DXVA2_BitStreamDateBufferType;
- bs->DataSize = current - dxva_data;
- bs->NumMBsInBuffer = mb_count;
-
- return ff_dxva2_commit_buffer(avctx, ctx, sc,
- DXVA2_SliceControlBufferType,
- ctx_pic->slice,
- ctx_pic->slice_count * sizeof(*ctx_pic->slice),
- mb_count);
-}
-
-static int dxva2_mpeg2_start_frame(AVCodecContext *avctx,
- av_unused const uint8_t *buffer,
- av_unused uint32_t size)
-{
- const struct MpegEncContext *s = avctx->priv_data;
- struct dxva_context *ctx = avctx->hwaccel_context;
- struct dxva2_picture_context *ctx_pic =
- s->current_picture_ptr->hwaccel_picture_private;
-
- if (!ctx->decoder || !ctx->cfg || ctx->surface_count <= 0)
- return -1;
- assert(ctx_pic);
-
- fill_picture_parameters(avctx, ctx, s, &ctx_pic->pp);
- fill_quantization_matrices(avctx, ctx, s, &ctx_pic->qm);
-
- ctx_pic->slice_count = 0;
- ctx_pic->bitstream_size = 0;
- ctx_pic->bitstream = NULL;
- return 0;
-}
-
-static int dxva2_mpeg2_decode_slice(AVCodecContext *avctx,
- const uint8_t *buffer, uint32_t size)
-{
- const struct MpegEncContext *s = avctx->priv_data;
- struct dxva2_picture_context *ctx_pic =
- s->current_picture_ptr->hwaccel_picture_private;
- unsigned position;
-
- if (ctx_pic->slice_count >= MAX_SLICES)
- return -1;
-
- 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;
-}
-
-static int dxva2_mpeg2_end_frame(AVCodecContext *avctx)
-{
- struct MpegEncContext *s = avctx->priv_data;
- struct dxva2_picture_context *ctx_pic =
- 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, s->current_picture_ptr,
- &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;
-}
-
-AVHWAccel ff_mpeg2_dxva2_hwaccel = {
- .name = "mpeg2_dxva2",
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_MPEG2VIDEO,
- .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
- .start_frame = dxva2_mpeg2_start_frame,
- .decode_slice = dxva2_mpeg2_decode_slice,
- .end_frame = dxva2_mpeg2_end_frame,
- .priv_data_size = sizeof(struct dxva2_picture_context),
-};
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