FFmpeg/libavcodec/dxva2_vc1.c
Stefano Sabatini 72415b2adb Define AVMediaType enum, and use it instead of enum CodecType, which
is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-30 23:30:55 +00:00

292 lines
12 KiB
C

/*
* 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 "dxva2_internal.h"
#include "vc1.h"
#include "vc1data.h"
struct dxva2_picture_context {
DXVA_PictureParameters pp;
DXVA_SliceInfo si;
const uint8_t *bitstream;
unsigned bitstream_size;
};
static void fill_picture_parameters(AVCodecContext *avctx,
struct dxva_context *ctx, const VC1Context *v,
DXVA_PictureParameters *pp)
{
const MpegEncContext *s = &v->s;
const Picture *current_picture = s->current_picture_ptr;
memset(pp, 0, sizeof(*pp));
pp->wDecodedPictureIndex =
pp->wDeblockedPictureIndex = ff_dxva2_get_surface_index(ctx, current_picture);
if (s->pict_type != FF_I_TYPE)
pp->wForwardRefPictureIndex = ff_dxva2_get_surface_index(ctx, &s->last_picture);
else
pp->wForwardRefPictureIndex = 0xffff;
if (s->pict_type == FF_B_TYPE)
pp->wBackwardRefPictureIndex = ff_dxva2_get_surface_index(ctx, &s->next_picture);
else
pp->wBackwardRefPictureIndex = 0xffff;
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 != 0x03 && !s->first_field;
pp->bPicIntra = s->pict_type == FF_I_TYPE;
pp->bPicBackwardPrediction = s->pict_type == FF_B_TYPE;
pp->bBidirectionalAveragingMode = (1 << 7) |
((ctx->cfg->ConfigIntraResidUnsigned != 0) << 6) |
((ctx->cfg->ConfigResidDiffAccelerator != 0) << 5) |
((v->lumscale != 32 || v->lumshift != 0) << 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;
ctx->report_id++;
if (ctx->report_id >= (1 << 16))
ctx->report_id = 1;
pp->bPicScanFixed = ctx->report_id >> 8;
pp->bPicScanMethod = ctx->report_id & 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) |
(s->resync_marker << 4) |
(v->rangered << 3) |
(s->max_b_frames );
pp->bPicExtrapolation = (!v->interlace || v->fcm == 0x00) ? 1 : 2;
pp->bPicDeblocked = ((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 != FF_B_TYPE) << 2) |
(v->psf << 1) |
(v->extended_dmv );
if (s->pict_type != FF_I_TYPE)
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 = 0;
pp->bReservedBits = 0;
if (s->picture_structure == PICT_FRAME) {
pp->wBitstreamFcodes = v->lumscale;
pp->wBitstreamPCEelements = v->lumshift;
} else {
/* Syntax: (top_field_param << 8) | bottom_field_param */
pp->wBitstreamFcodes = (v->lumscale << 8) | v->lumscale;
pp->wBitstreamPCEelements = (v->lumshift << 8) | v->lumshift;
}
pp->bBitstreamConcealmentNeed = 0;
pp->bBitstreamConcealmentMethod = 0;
}
static void 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 = 0;
slice->wMBbitOffset = get_bits_count(&s->gb);
slice->wNumberMBsInSlice = s->mb_width * s->mb_height; /* XXX We assume 1 slice */
slice->wQuantizerScaleCode = v->pq;
slice->wBadSliceChopping = 0;
}
static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
DXVA2_DecodeBufferDesc *bs,
DXVA2_DecodeBufferDesc *sc)
{
const VC1Context *v = avctx->priv_data;
struct dxva_context *ctx = avctx->hwaccel_context;
const MpegEncContext *s = &v->s;
struct dxva2_picture_context *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;
DXVA_SliceInfo *slice = &ctx_pic->si;
static const uint8_t start_code[] = { 0, 0, 1, 0x0d };
const unsigned start_code_size = avctx->codec_id == CODEC_ID_VC1 ? sizeof(start_code) : 0;
const unsigned slice_size = slice->dwSliceBitsInBuffer / 8;
const unsigned padding = 128 - ((start_code_size + slice_size) & 127);
const unsigned data_size = start_code_size + slice_size + padding;
uint8_t *dxva_data;
unsigned dxva_size;
int result;
if (FAILED(IDirectXVideoDecoder_GetBuffer(ctx->decoder,
DXVA2_BitStreamDateBufferType,
&dxva_data, &dxva_size)))
return -1;
result = data_size <= dxva_size ? 0 : -1;
if (!result) {
if (start_code_size > 0)
memcpy(dxva_data, start_code, start_code_size);
memcpy(dxva_data + start_code_size,
ctx_pic->bitstream + slice->dwSliceDataLocation, slice_size);
if (padding > 0)
memset(dxva_data + start_code_size + slice_size, 0, padding);
slice->dwSliceBitsInBuffer = 8 * data_size;
}
if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(ctx->decoder,
DXVA2_BitStreamDateBufferType)))
return -1;
if (result)
return result;
memset(bs, 0, sizeof(*bs));
bs->CompressedBufferType = DXVA2_BitStreamDateBufferType;
bs->DataSize = data_size;
bs->NumMBsInBuffer = s->mb_width * s->mb_height;
assert((bs->DataSize & 127) == 0);
return ff_dxva2_commit_buffer(avctx, ctx, sc,
DXVA2_SliceControlBufferType,
slice, sizeof(*slice), bs->NumMBsInBuffer);
}
static int start_frame(AVCodecContext *avctx,
av_unused const uint8_t *buffer,
av_unused uint32_t size)
{
const VC1Context *v = avctx->priv_data;
struct dxva_context *ctx = avctx->hwaccel_context;
struct dxva2_picture_context *ctx_pic = v->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, v, &ctx_pic->pp);
ctx_pic->bitstream_size = 0;
ctx_pic->bitstream = NULL;
return 0;
}
static int 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;
if (ctx_pic->bitstream_size > 0)
return -1;
if (avctx->codec_id == CODEC_ID_VC1 &&
size >= 4 && IS_MARKER(AV_RB32(buffer))) {
buffer += 4;
size -= 4;
}
ctx_pic->bitstream_size = size;
ctx_pic->bitstream = buffer;
fill_slice(avctx, &ctx_pic->si, 0, size);
return 0;
}
static int end_frame(AVCodecContext *avctx)
{
VC1Context *v = avctx->priv_data;
struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
if (ctx_pic->bitstream_size <= 0)
return -1;
return ff_dxva2_common_end_frame(avctx, &v->s,
&ctx_pic->pp, sizeof(ctx_pic->pp),
NULL, 0,
commit_bitstream_and_slice_buffer);
}
#if CONFIG_WMV3_DXVA2_HWACCEL
AVHWAccel wmv3_dxva2_hwaccel = {
.name = "wmv3_dxva2",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_WMV3,
.pix_fmt = PIX_FMT_DXVA2_VLD,
.capabilities = 0,
.start_frame = start_frame,
.decode_slice = decode_slice,
.end_frame = end_frame,
.priv_data_size = sizeof(struct dxva2_picture_context),
};
#endif
AVHWAccel vc1_dxva2_hwaccel = {
.name = "vc1_dxva2",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_VC1,
.pix_fmt = PIX_FMT_DXVA2_VLD,
.capabilities = 0,
.start_frame = start_frame,
.decode_slice = decode_slice,
.end_frame = end_frame,
.priv_data_size = sizeof(struct dxva2_picture_context),
};