mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-28 14:01:27 +00:00
64fd62d68a
The GetBitContext now includes the NAL header, which offsets the slice by one byte, which needs to be accounted for here.
543 lines
22 KiB
C
543 lines
22 KiB
C
/*
|
|
* DXVA2 H264 HW acceleration.
|
|
*
|
|
* copyright (c) 2009 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 "libavutil/avassert.h"
|
|
|
|
#include "h264.h"
|
|
#include "h264data.h"
|
|
#include "mpegutils.h"
|
|
|
|
// The headers above may include w32threads.h, which uses the original
|
|
// _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
|
|
// potentially newer version.
|
|
#include "dxva2_internal.h"
|
|
|
|
struct dxva2_picture_context {
|
|
DXVA_PicParams_H264 pp;
|
|
DXVA_Qmatrix_H264 qm;
|
|
unsigned slice_count;
|
|
DXVA_Slice_H264_Short slice_short[MAX_SLICES];
|
|
DXVA_Slice_H264_Long slice_long[MAX_SLICES];
|
|
const uint8_t *bitstream;
|
|
unsigned bitstream_size;
|
|
};
|
|
|
|
static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
|
|
unsigned index, unsigned flag)
|
|
{
|
|
assert((index&0x7f) == index && (flag&0x01) == flag);
|
|
pic->bPicEntry = index | (flag << 7);
|
|
}
|
|
|
|
static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h,
|
|
DXVA_PicParams_H264 *pp)
|
|
{
|
|
const H264Picture *current_picture = h->cur_pic_ptr;
|
|
int i, j;
|
|
|
|
memset(pp, 0, sizeof(*pp));
|
|
/* Configure current picture */
|
|
fill_picture_entry(&pp->CurrPic,
|
|
ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
|
|
h->picture_structure == PICT_BOTTOM_FIELD);
|
|
/* Configure the set of references */
|
|
pp->UsedForReferenceFlags = 0;
|
|
pp->NonExistingFrameFlags = 0;
|
|
for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
|
|
const H264Picture *r;
|
|
if (j < h->short_ref_count) {
|
|
r = h->short_ref[j++];
|
|
} else {
|
|
r = NULL;
|
|
while (!r && j < h->short_ref_count + 16)
|
|
r = h->long_ref[j++ - h->short_ref_count];
|
|
}
|
|
if (r) {
|
|
fill_picture_entry(&pp->RefFrameList[i],
|
|
ff_dxva2_get_surface_index(avctx, ctx, r->f),
|
|
r->long_ref != 0);
|
|
|
|
if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
|
|
pp->FieldOrderCntList[i][0] = r->field_poc[0];
|
|
if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
|
|
pp->FieldOrderCntList[i][1] = r->field_poc[1];
|
|
|
|
pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
|
|
if (r->reference & PICT_TOP_FIELD)
|
|
pp->UsedForReferenceFlags |= 1 << (2*i + 0);
|
|
if (r->reference & PICT_BOTTOM_FIELD)
|
|
pp->UsedForReferenceFlags |= 1 << (2*i + 1);
|
|
} else {
|
|
pp->RefFrameList[i].bPicEntry = 0xff;
|
|
pp->FieldOrderCntList[i][0] = 0;
|
|
pp->FieldOrderCntList[i][1] = 0;
|
|
pp->FrameNumList[i] = 0;
|
|
}
|
|
}
|
|
|
|
pp->wFrameWidthInMbsMinus1 = h->mb_width - 1;
|
|
pp->wFrameHeightInMbsMinus1 = h->mb_height - 1;
|
|
pp->num_ref_frames = h->sps.ref_frame_count;
|
|
|
|
pp->wBitFields = ((h->picture_structure != PICT_FRAME) << 0) |
|
|
((h->sps.mb_aff &&
|
|
(h->picture_structure == PICT_FRAME)) << 1) |
|
|
(h->sps.residual_color_transform_flag << 2) |
|
|
/* sp_for_switch_flag (not implemented by FFmpeg) */
|
|
(0 << 3) |
|
|
(h->sps.chroma_format_idc << 4) |
|
|
((h->nal_ref_idc != 0) << 6) |
|
|
(h->pps.constrained_intra_pred << 7) |
|
|
(h->pps.weighted_pred << 8) |
|
|
(h->pps.weighted_bipred_idc << 9) |
|
|
/* MbsConsecutiveFlag */
|
|
(1 << 11) |
|
|
(h->sps.frame_mbs_only_flag << 12) |
|
|
(h->pps.transform_8x8_mode << 13) |
|
|
((h->sps.level_idc >= 31) << 14) |
|
|
/* IntraPicFlag (Modified if we detect a non
|
|
* intra slice in dxva2_h264_decode_slice) */
|
|
(1 << 15);
|
|
|
|
pp->bit_depth_luma_minus8 = h->sps.bit_depth_luma - 8;
|
|
pp->bit_depth_chroma_minus8 = h->sps.bit_depth_chroma - 8;
|
|
if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
|
|
pp->Reserved16Bits = 0;
|
|
else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
|
|
pp->Reserved16Bits = 0x34c;
|
|
else
|
|
pp->Reserved16Bits = 3; /* FIXME is there a way to detect the right mode ? */
|
|
pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
|
|
pp->CurrFieldOrderCnt[0] = 0;
|
|
if ((h->picture_structure & PICT_TOP_FIELD) &&
|
|
current_picture->field_poc[0] != INT_MAX)
|
|
pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
|
|
pp->CurrFieldOrderCnt[1] = 0;
|
|
if ((h->picture_structure & PICT_BOTTOM_FIELD) &&
|
|
current_picture->field_poc[1] != INT_MAX)
|
|
pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
|
|
pp->pic_init_qs_minus26 = h->pps.init_qs - 26;
|
|
pp->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
|
|
pp->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
|
|
pp->ContinuationFlag = 1;
|
|
pp->pic_init_qp_minus26 = h->pps.init_qp - 26;
|
|
pp->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
|
|
pp->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
|
|
pp->Reserved8BitsA = 0;
|
|
pp->frame_num = h->frame_num;
|
|
pp->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
|
|
pp->pic_order_cnt_type = h->sps.poc_type;
|
|
if (h->sps.poc_type == 0)
|
|
pp->log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
|
|
else if (h->sps.poc_type == 1)
|
|
pp->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
|
|
pp->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
|
|
pp->entropy_coding_mode_flag = h->pps.cabac;
|
|
pp->pic_order_present_flag = h->pps.pic_order_present;
|
|
pp->num_slice_groups_minus1 = h->pps.slice_group_count - 1;
|
|
pp->slice_group_map_type = h->pps.mb_slice_group_map_type;
|
|
pp->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
|
|
pp->redundant_pic_cnt_present_flag= h->pps.redundant_pic_cnt_present;
|
|
pp->Reserved8BitsB = 0;
|
|
pp->slice_group_change_rate_minus1= 0; /* XXX not implemented by FFmpeg */
|
|
//pp->SliceGroupMap[810]; /* XXX not implemented by FFmpeg */
|
|
}
|
|
|
|
static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
|
|
{
|
|
unsigned i, j;
|
|
memset(qm, 0, sizeof(*qm));
|
|
if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
|
|
for (i = 0; i < 6; i++)
|
|
for (j = 0; j < 16; j++)
|
|
qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][j];
|
|
|
|
for (i = 0; i < 64; i++) {
|
|
qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][i];
|
|
qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][i];
|
|
}
|
|
} else {
|
|
for (i = 0; i < 6; i++)
|
|
for (j = 0; j < 16; j++)
|
|
qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][ff_zigzag_scan[j]];
|
|
|
|
for (i = 0; i < 64; i++) {
|
|
qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][ff_zigzag_direct[i]];
|
|
qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][ff_zigzag_direct[i]];
|
|
}
|
|
}
|
|
}
|
|
|
|
static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
|
|
{
|
|
assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
|
|
DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
|
|
return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
|
|
}
|
|
|
|
static void fill_slice_short(DXVA_Slice_H264_Short *slice,
|
|
unsigned position, unsigned size)
|
|
{
|
|
memset(slice, 0, sizeof(*slice));
|
|
slice->BSNALunitDataLocation = position;
|
|
slice->SliceBytesInBuffer = size;
|
|
slice->wBadSliceChopping = 0;
|
|
}
|
|
|
|
static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
|
|
{
|
|
int i;
|
|
for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
|
|
if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
|
|
return i;
|
|
}
|
|
return 0x7f;
|
|
}
|
|
|
|
static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
|
|
const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
|
|
{
|
|
const H264Context *h = avctx->priv_data;
|
|
H264SliceContext *sl = &h->slice_ctx[0];
|
|
AVDXVAContext *ctx = avctx->hwaccel_context;
|
|
unsigned list;
|
|
|
|
memset(slice, 0, sizeof(*slice));
|
|
slice->BSNALunitDataLocation = position;
|
|
slice->SliceBytesInBuffer = size;
|
|
slice->wBadSliceChopping = 0;
|
|
|
|
slice->first_mb_in_slice = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
|
|
slice->NumMbsForSlice = 0; /* XXX it is set once we have all slices */
|
|
slice->BitOffsetToSliceData = get_bits_count(&sl->gb) - 8;
|
|
slice->slice_type = ff_h264_get_slice_type(sl);
|
|
if (sl->slice_type_fixed)
|
|
slice->slice_type += 5;
|
|
slice->luma_log2_weight_denom = sl->pwt.luma_log2_weight_denom;
|
|
slice->chroma_log2_weight_denom = sl->pwt.chroma_log2_weight_denom;
|
|
if (sl->list_count > 0)
|
|
slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
|
|
if (sl->list_count > 1)
|
|
slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
|
|
slice->slice_alpha_c0_offset_div2 = sl->slice_alpha_c0_offset / 2;
|
|
slice->slice_beta_offset_div2 = sl->slice_beta_offset / 2;
|
|
slice->Reserved8Bits = 0;
|
|
|
|
for (list = 0; list < 2; list++) {
|
|
unsigned i;
|
|
for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
|
|
if (list < sl->list_count && i < sl->ref_count[list]) {
|
|
const H264Picture *r = sl->ref_list[list][i].parent;
|
|
unsigned plane;
|
|
unsigned index;
|
|
if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
|
|
index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
|
|
else
|
|
index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
|
|
fill_picture_entry(&slice->RefPicList[list][i], index,
|
|
sl->ref_list[list][i].reference == PICT_BOTTOM_FIELD);
|
|
for (plane = 0; plane < 3; plane++) {
|
|
int w, o;
|
|
if (plane == 0 && sl->pwt.luma_weight_flag[list]) {
|
|
w = sl->pwt.luma_weight[i][list][0];
|
|
o = sl->pwt.luma_weight[i][list][1];
|
|
} else if (plane >= 1 && sl->pwt.chroma_weight_flag[list]) {
|
|
w = sl->pwt.chroma_weight[i][list][plane-1][0];
|
|
o = sl->pwt.chroma_weight[i][list][plane-1][1];
|
|
} else {
|
|
w = 1 << (plane == 0 ? sl->pwt.luma_log2_weight_denom :
|
|
sl->pwt.chroma_log2_weight_denom);
|
|
o = 0;
|
|
}
|
|
slice->Weights[list][i][plane][0] = w;
|
|
slice->Weights[list][i][plane][1] = o;
|
|
}
|
|
} else {
|
|
unsigned plane;
|
|
slice->RefPicList[list][i].bPicEntry = 0xff;
|
|
for (plane = 0; plane < 3; plane++) {
|
|
slice->Weights[list][i][plane][0] = 0;
|
|
slice->Weights[list][i][plane][1] = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
slice->slice_qs_delta = 0; /* XXX not implemented by FFmpeg */
|
|
slice->slice_qp_delta = sl->qscale - h->pps.init_qp;
|
|
slice->redundant_pic_cnt = sl->redundant_pic_count;
|
|
if (sl->slice_type == AV_PICTURE_TYPE_B)
|
|
slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
|
|
slice->cabac_init_idc = h->pps.cabac ? sl->cabac_init_idc : 0;
|
|
if (sl->deblocking_filter < 2)
|
|
slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
|
|
else
|
|
slice->disable_deblocking_filter_idc = sl->deblocking_filter;
|
|
slice->slice_id = h->current_slice - 1;
|
|
}
|
|
|
|
static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
|
|
DECODER_BUFFER_DESC *bs,
|
|
DECODER_BUFFER_DESC *sc)
|
|
{
|
|
const H264Context *h = avctx->priv_data;
|
|
const unsigned mb_count = h->mb_width * h->mb_height;
|
|
AVDXVAContext *ctx = avctx->hwaccel_context;
|
|
const H264Picture *current_picture = h->cur_pic_ptr;
|
|
struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
|
|
DXVA_Slice_H264_Short *slice = NULL;
|
|
void *dxva_data_ptr = NULL;
|
|
uint8_t *dxva_data, *current, *end;
|
|
unsigned dxva_size = 0;
|
|
void *slice_data;
|
|
unsigned slice_size;
|
|
unsigned padding;
|
|
unsigned i;
|
|
unsigned type;
|
|
|
|
/* Create an annex B bitstream buffer with only slice NAL and finalize slice */
|
|
#if CONFIG_D3D11VA
|
|
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
|
|
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++) {
|
|
static const uint8_t start_code[] = { 0, 0, 1 };
|
|
static const unsigned start_code_size = sizeof(start_code);
|
|
unsigned position, size;
|
|
|
|
assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
|
|
offsetof(DXVA_Slice_H264_Long, BSNALunitDataLocation));
|
|
assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
|
|
offsetof(DXVA_Slice_H264_Long, SliceBytesInBuffer));
|
|
|
|
if (is_slice_short(avctx, ctx))
|
|
slice = &ctx_pic->slice_short[i];
|
|
else
|
|
slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
|
|
|
|
position = slice->BSNALunitDataLocation;
|
|
size = slice->SliceBytesInBuffer;
|
|
if (start_code_size + size > end - current) {
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
|
|
break;
|
|
}
|
|
|
|
slice->BSNALunitDataLocation = current - dxva_data;
|
|
slice->SliceBytesInBuffer = start_code_size + size;
|
|
|
|
if (!is_slice_short(avctx, ctx)) {
|
|
DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
|
|
if (i < ctx_pic->slice_count - 1)
|
|
slice_long->NumMbsForSlice =
|
|
slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
|
|
else
|
|
slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
|
|
}
|
|
|
|
memcpy(current, start_code, start_code_size);
|
|
current += start_code_size;
|
|
|
|
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->SliceBytesInBuffer += padding;
|
|
}
|
|
#if CONFIG_D3D11VA
|
|
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
|
|
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 (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
|
|
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;
|
|
|
|
av_assert0((dsc11->DataSize & 127) == 0);
|
|
}
|
|
#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;
|
|
|
|
av_assert0((dsc2->DataSize & 127) == 0);
|
|
}
|
|
#endif
|
|
|
|
if (is_slice_short(avctx, ctx)) {
|
|
slice_data = ctx_pic->slice_short;
|
|
slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
|
|
} else {
|
|
slice_data = ctx_pic->slice_long;
|
|
slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
|
|
}
|
|
return ff_dxva2_commit_buffer(avctx, ctx, sc,
|
|
type,
|
|
slice_data, slice_size, mb_count);
|
|
}
|
|
|
|
|
|
static int dxva2_h264_start_frame(AVCodecContext *avctx,
|
|
av_unused const uint8_t *buffer,
|
|
av_unused uint32_t size)
|
|
{
|
|
const H264Context *h = avctx->priv_data;
|
|
AVDXVAContext *ctx = avctx->hwaccel_context;
|
|
struct dxva2_picture_context *ctx_pic = h->cur_pic_ptr->hwaccel_picture_private;
|
|
|
|
if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
|
|
DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
|
|
DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
|
|
return -1;
|
|
assert(ctx_pic);
|
|
|
|
/* Fill up DXVA_PicParams_H264 */
|
|
fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
|
|
|
|
/* Fill up DXVA_Qmatrix_H264 */
|
|
fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
|
|
|
|
ctx_pic->slice_count = 0;
|
|
ctx_pic->bitstream_size = 0;
|
|
ctx_pic->bitstream = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int dxva2_h264_decode_slice(AVCodecContext *avctx,
|
|
const uint8_t *buffer,
|
|
uint32_t size)
|
|
{
|
|
const H264Context *h = avctx->priv_data;
|
|
const H264SliceContext *sl = &h->slice_ctx[0];
|
|
AVDXVAContext *ctx = avctx->hwaccel_context;
|
|
const H264Picture *current_picture = h->cur_pic_ptr;
|
|
struct dxva2_picture_context *ctx_pic = current_picture->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;
|
|
if (is_slice_short(avctx, ctx))
|
|
fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
|
|
position, size);
|
|
else
|
|
fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
|
|
&ctx_pic->pp, position, size);
|
|
ctx_pic->slice_count++;
|
|
|
|
if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
|
|
ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
|
|
return 0;
|
|
}
|
|
|
|
static int dxva2_h264_end_frame(AVCodecContext *avctx)
|
|
{
|
|
H264Context *h = avctx->priv_data;
|
|
H264SliceContext *sl = &h->slice_ctx[0];
|
|
struct dxva2_picture_context *ctx_pic =
|
|
h->cur_pic_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, h->cur_pic_ptr->f,
|
|
&ctx_pic->pp, sizeof(ctx_pic->pp),
|
|
&ctx_pic->qm, sizeof(ctx_pic->qm),
|
|
commit_bitstream_and_slice_buffer);
|
|
if (!ret)
|
|
ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
|
|
return ret;
|
|
}
|
|
|
|
#if CONFIG_H264_DXVA2_HWACCEL
|
|
AVHWAccel ff_h264_dxva2_hwaccel = {
|
|
.name = "h264_dxva2",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_H264,
|
|
.pix_fmt = AV_PIX_FMT_DXVA2_VLD,
|
|
.start_frame = dxva2_h264_start_frame,
|
|
.decode_slice = dxva2_h264_decode_slice,
|
|
.end_frame = dxva2_h264_end_frame,
|
|
.frame_priv_data_size = sizeof(struct dxva2_picture_context),
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_H264_D3D11VA_HWACCEL
|
|
AVHWAccel ff_h264_d3d11va_hwaccel = {
|
|
.name = "h264_d3d11va",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_H264,
|
|
.pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
|
|
.start_frame = dxva2_h264_start_frame,
|
|
.decode_slice = dxva2_h264_decode_slice,
|
|
.end_frame = dxva2_h264_end_frame,
|
|
.frame_priv_data_size = sizeof(struct dxva2_picture_context),
|
|
};
|
|
#endif
|