@@ -3081,6 +3081,8 @@ mpeg2_d3d11va_hwaccel_deps="d3d11va"
mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
mpeg2_d3d11va2_hwaccel_deps="d3d11va"
mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
+mpeg2_d3d12va_hwaccel_deps="d3d12va"
+mpeg2_d3d12va_hwaccel_select="mpeg2video_decoder"
mpeg2_dxva2_hwaccel_deps="dxva2"
mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
mpeg2_nvdec_hwaccel_deps="nvdec"
@@ -1018,6 +1018,7 @@ OBJS-$(CONFIG_MPEG1_VDPAU_HWACCEL) += vdpau_mpeg12.o
OBJS-$(CONFIG_MPEG1_VIDEOTOOLBOX_HWACCEL) += videotoolbox.o
OBJS-$(CONFIG_MPEG2_D3D11VA_HWACCEL) += dxva2_mpeg2.o
OBJS-$(CONFIG_MPEG2_DXVA2_HWACCEL) += dxva2_mpeg2.o
+OBJS-$(CONFIG_MPEG2_D3D12VA_HWACCEL) += dxva2_mpeg2.o d3d12va_mpeg2.o
OBJS-$(CONFIG_MPEG2_NVDEC_HWACCEL) += nvdec_mpeg12.o
OBJS-$(CONFIG_MPEG2_QSV_HWACCEL) += qsvdec.o
OBJS-$(CONFIG_MPEG2_VAAPI_HWACCEL) += vaapi_mpeg2.o
new file mode 100644
@@ -0,0 +1,191 @@
+/*
+ * Direct3D12 MPEG-2 HW acceleration
+ *
+ * copyright (c) 2022-2023 Wu Jianhua <toqsxw@outlook.com>
+ *
+ * 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 "libavutil/avassert.h"
+#include "libavutil/hwcontext_d3d12va_internal.h"
+#include "mpegutils.h"
+#include "mpegvideodec.h"
+#include "d3d12va.h"
+#include "dxva2_internal.h"
+
+#define MAX_SLICES 1024
+#define INVALID_REF 0xffff
+
+#define REF_RESOURCE(index) if (index != INVALID_REF) { \
+ ctx->ref_resources[index] = frames_hwctx->texture_infos[index].texture; \
+}
+
+typedef struct D3D12DecodePictureContext {
+ DXVA_PictureParameters pp;
+ DXVA_QmatrixData qm;
+ unsigned slice_count;
+ DXVA_SliceInfo slices[MAX_SLICES];
+ const uint8_t *bitstream;
+ unsigned bitstream_size;
+} D3D12DecodePictureContext;
+
+static int d3d12va_mpeg2_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
+{
+ const MpegEncContext *s = avctx->priv_data;
+ D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
+ D3D12DecodePictureContext *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;
+ DXVA_QmatrixData *qm = &ctx_pic->qm;
+
+ if (!ctx)
+ return -1;
+
+ av_assert0(ctx_pic);
+
+ ff_dxva2_mpeg2_fill_picture_parameters(avctx, (AVDXVAContext *)ctx, &ctx_pic->pp);
+ ff_dxva2_mpeg2_fill_quantization_matrices(avctx, (AVDXVAContext *)ctx, &ctx_pic->qm);
+
+ // Post processing operations are not supported in D3D12 Video
+ ctx_pic->pp.wDeblockedPictureIndex = INVALID_REF;
+
+ ctx_pic->bitstream = NULL;
+ ctx_pic->bitstream_size = 0;
+ ctx_pic->slice_count = 0;
+
+ return 0;
+}
+
+static int d3d12va_mpeg2_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
+{
+ const MpegEncContext *s = avctx->priv_data;
+ D3D12DecodePictureContext *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;
+
+ int is_field = s->picture_structure != PICT_FRAME;
+
+ if (ctx_pic->slice_count >= MAX_SLICES) {
+ return AVERROR(ERANGE);
+ }
+
+ if (!ctx_pic->bitstream)
+ ctx_pic->bitstream = buffer;
+ ctx_pic->bitstream_size += size;
+
+ ff_dxva2_mpeg2_fill_slice(avctx, &ctx_pic->slices[ctx_pic->slice_count++],
+ buffer - ctx_pic->bitstream, buffer, size);
+
+ return 0;
+}
+
+static int update_input_arguments(AVCodecContext *avctx, D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS *input_args, ID3D12Resource *buffer)
+{
+ D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
+ AVHWFramesContext *frames_ctx = D3D12VA_FRAMES_CONTEXT(avctx);
+ AVD3D12VAFramesContext *frames_hwctx = frames_ctx->hwctx;
+ const MpegEncContext *s = avctx->priv_data;
+ D3D12DecodePictureContext *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);
+
+ int i;
+ uint8_t *mapped_data = NULL;
+ D3D12_VIDEO_DECODE_FRAME_ARGUMENT *args = &input_args->FrameArguments[input_args->NumFrameArguments++];
+
+ D3D12_RANGE range = {
+ .Begin = 0,
+ .End = ctx_pic->bitstream_size,
+ };
+
+ if (FAILED(ID3D12Resource_Map(buffer, 0, &range, &mapped_data))) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to map D3D12 Buffer resource!\n");
+ return AVERROR(EINVAL);
+ }
+
+ for (i = 0; i < ctx_pic->slice_count; i++) {
+ DXVA_SliceInfo *slice = &ctx_pic->slices[i];
+
+ if (i < ctx_pic->slice_count - 1)
+ slice->wNumberMBsInSlice = slice[1].wNumberMBsInSlice - slice[0].wNumberMBsInSlice;
+ else
+ slice->wNumberMBsInSlice = mb_count - slice[0].wNumberMBsInSlice;
+ }
+
+ memcpy(mapped_data, ctx_pic->bitstream, ctx_pic->bitstream_size);
+
+ ID3D12Resource_Unmap(buffer, 0, &range);
+
+ args->Type = D3D12_VIDEO_DECODE_ARGUMENT_TYPE_SLICE_CONTROL;
+ args->Size = sizeof(DXVA_SliceInfo) * ctx_pic->slice_count;
+ args->pData = ctx_pic->slices;
+
+ input_args->CompressedBitstream = (D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM){
+ .pBuffer = buffer,
+ .Offset = 0,
+ .Size = ctx_pic->bitstream_size,
+ };
+
+ REF_RESOURCE(ctx_pic->pp.wDecodedPictureIndex )
+ REF_RESOURCE(ctx_pic->pp.wForwardRefPictureIndex )
+ REF_RESOURCE(ctx_pic->pp.wBackwardRefPictureIndex)
+
+ return 0;
+}
+
+static int d3d12va_mpeg2_end_frame(AVCodecContext *avctx)
+{
+ int ret;
+ MpegEncContext *s = avctx->priv_data;
+ D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
+ D3D12DecodePictureContext *ctx_pic = s->current_picture_ptr->hwaccel_picture_private;
+
+ if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
+ return -1;
+
+ ret = ff_d3d12va_common_end_frame(avctx, s->current_picture_ptr->f, &ctx_pic->pp, sizeof(ctx_pic->pp),
+ &ctx_pic->qm, sizeof(ctx_pic->qm), update_input_arguments);
+ if (!ret)
+ ff_mpeg_draw_horiz_band(s, 0, avctx->height);
+
+ return ret;
+}
+
+static int d3d12va_mpeg2_decode_init(AVCodecContext *avctx)
+{
+ const MpegEncContext *s = avctx->priv_data;
+ D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
+
+ ctx->cfg.DecodeProfile = D3D12_VIDEO_DECODE_PROFILE_MPEG2;
+
+ return ff_d3d12va_decode_init(avctx);
+}
+
+#if CONFIG_MPEG2_D3D12VA_HWACCEL
+const AVHWAccel ff_mpeg2_d3d12va_hwaccel = {
+ .name = "mpeg2_d3d12va",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG2VIDEO,
+ .pix_fmt = AV_PIX_FMT_D3D12,
+ .init = d3d12va_mpeg2_decode_init,
+ .uninit = ff_d3d12va_decode_uninit,
+ .start_frame = d3d12va_mpeg2_start_frame,
+ .decode_slice = d3d12va_mpeg2_decode_slice,
+ .end_frame = d3d12va_mpeg2_end_frame,
+ .frame_params = ff_d3d12va_common_frame_params,
+ .frame_priv_data_size = sizeof(D3D12DecodePictureContext),
+ .priv_data_size = sizeof(D3D12VADecodeContext),
+};
+#endif
@@ -176,4 +176,10 @@ int ff_dxva2_vp9_fill_picture_parameters(const AVCodecContext *avctx, AVDXVACont
int ff_dxva2_av1_fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_PicParams_AV1 *pp);
#endif
+void ff_dxva2_mpeg2_fill_picture_parameters(AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_PictureParameters *pp);
+
+void ff_dxva2_mpeg2_fill_quantization_matrices(AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_QmatrixData *qm);
+
+void ff_dxva2_mpeg2_fill_slice(AVCodecContext *avctx, DXVA_SliceInfo *slice, unsigned position, const uint8_t *buffer, unsigned size);
+
#endif /* AVCODEC_DXVA2_INTERNAL_H */
@@ -39,11 +39,11 @@ struct dxva2_picture_context {
unsigned bitstream_size;
};
-static void fill_picture_parameters(AVCodecContext *avctx,
+void ff_dxva2_mpeg2_fill_picture_parameters(AVCodecContext *avctx,
AVDXVAContext *ctx,
- const struct MpegEncContext *s,
DXVA_PictureParameters *pp)
{
+ const struct MpegEncContext *s = avctx->priv_data;
const Picture *current_picture = s->current_picture_ptr;
int is_field = s->picture_structure != PICT_FRAME;
@@ -105,11 +105,11 @@ static void fill_picture_parameters(AVCodecContext *avctx,
pp->bBitstreamConcealmentMethod = 0;
}
-static void fill_quantization_matrices(AVCodecContext *avctx,
+void ff_dxva2_mpeg2_fill_quantization_matrices(AVCodecContext *avctx,
AVDXVAContext *ctx,
- const struct MpegEncContext *s,
DXVA_QmatrixData *qm)
{
+ const struct MpegEncContext *s = avctx->priv_data;
int i;
for (i = 0; i < 4; i++)
qm->bNewQmatrix[i] = 1;
@@ -122,12 +122,12 @@ static void fill_quantization_matrices(AVCodecContext *avctx,
}
}
-static void fill_slice(AVCodecContext *avctx,
- const struct MpegEncContext *s,
+void ff_dxva2_mpeg2_fill_slice(AVCodecContext *avctx,
DXVA_SliceInfo *slice,
unsigned position,
const uint8_t *buffer, unsigned size)
{
+ const struct MpegEncContext *s = avctx->priv_data;
int is_field = s->picture_structure != PICT_FRAME;
GetBitContext gb;
@@ -265,8 +265,8 @@ static int dxva2_mpeg2_start_frame(AVCodecContext *avctx,
return -1;
assert(ctx_pic);
- fill_picture_parameters(avctx, ctx, s, &ctx_pic->pp);
- fill_quantization_matrices(avctx, ctx, s, &ctx_pic->qm);
+ ff_dxva2_mpeg2_fill_picture_parameters(avctx, ctx, &ctx_pic->pp);
+ ff_dxva2_mpeg2_fill_quantization_matrices(avctx, ctx, &ctx_pic->qm);
ctx_pic->slice_count = 0;
ctx_pic->bitstream_size = 0;
@@ -292,7 +292,7 @@ static int dxva2_mpeg2_decode_slice(AVCodecContext *avctx,
ctx_pic->bitstream_size += size;
position = buffer - ctx_pic->bitstream;
- fill_slice(avctx, s, &ctx_pic->slice[ctx_pic->slice_count++], position,
+ ff_dxva2_mpeg2_fill_slice(avctx, &ctx_pic->slice[ctx_pic->slice_count++], position,
buffer, size);
return 0;
}
@@ -56,6 +56,7 @@ extern const AVHWAccel ff_mpeg1_vdpau_hwaccel;
extern const AVHWAccel ff_mpeg1_videotoolbox_hwaccel;
extern const AVHWAccel ff_mpeg2_d3d11va_hwaccel;
extern const AVHWAccel ff_mpeg2_d3d11va2_hwaccel;
+extern const AVHWAccel ff_mpeg2_d3d12va_hwaccel;
extern const AVHWAccel ff_mpeg2_nvdec_hwaccel;
extern const AVHWAccel ff_mpeg2_dxva2_hwaccel;
extern const AVHWAccel ff_mpeg2_vaapi_hwaccel;
@@ -1129,6 +1129,9 @@ static const enum AVPixelFormat mpeg2_hwaccel_pixfmt_list_420[] = {
AV_PIX_FMT_D3D11VA_VLD,
AV_PIX_FMT_D3D11,
#endif
+#if CONFIG_MPEG2_D3D12VA_HWACCEL
+ AV_PIX_FMT_D3D12,
+#endif
#if CONFIG_MPEG2_VAAPI_HWACCEL
AV_PIX_FMT_VAAPI,
#endif
@@ -2922,6 +2925,9 @@ const FFCodec ff_mpeg2video_decoder = {
#if CONFIG_MPEG2_D3D11VA2_HWACCEL
HWACCEL_D3D11VA2(mpeg2),
#endif
+#if CONFIG_MPEG2_D3D12VA_HWACCEL
+ HWACCEL_D3D12VA(mpeg2),
+#endif
#if CONFIG_MPEG2_NVDEC_HWACCEL
HWACCEL_NVDEC(mpeg2),
#endif