[Libva] [PATCH V4: 2/4] HEVC10bit ENC:enable hevc 10bit on VME and PAK
Pengfei Qu
Pengfei.Qu at intel.com
Thu Sep 8 00:43:25 UTC 2016
1.add p010->nv12 before VME
2.add CBR support
Signed-off-by: Pengfei Qu <Pengfei.Qu at intel.com>
---
src/gen6_mfc_common.c | 13 +++++
src/gen9_mfc_hevc.c | 105 +++++++++++++---------------------
src/gen9_vme.c | 153 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 205 insertions(+), 66 deletions(-)
diff --git a/src/gen6_mfc_common.c b/src/gen6_mfc_common.c
index 9f041d8..faabbe7 100644
--- a/src/gen6_mfc_common.c
+++ b/src/gen6_mfc_common.c
@@ -2089,12 +2089,19 @@ intel_hevc_vme_reference_state(VADriverContextP ctx,
struct object_surface *obj_surface = NULL;
struct i965_driver_data *i965 = i965_driver_data(ctx);
VASurfaceID ref_surface_id;
+ VAEncSequenceParameterBufferHEVC *pSequenceParameter = (VAEncSequenceParameterBufferHEVC *)encode_state->seq_param_ext->buffer;
VAEncPictureParameterBufferHEVC *pic_param = (VAEncPictureParameterBufferHEVC *)encode_state->pic_param_ext->buffer;
VAEncSliceParameterBufferHEVC *slice_param = (VAEncSliceParameterBufferHEVC *)encode_state->slice_params_ext[0]->buffer;
int max_num_references;
VAPictureHEVC *curr_pic;
VAPictureHEVC *ref_list;
int ref_idx;
+ unsigned int is_hevc10 = 0;
+ GenHevcSurface *hevc_encoder_surface = NULL;
+
+ if((pSequenceParameter->seq_fields.bits.bit_depth_luma_minus8 > 0)
+ || (pSequenceParameter->seq_fields.bits.bit_depth_chroma_minus8 > 0))
+ is_hevc10 = 1;
if (list_index == 0) {
max_num_references = pic_param->num_ref_idx_l0_default_active_minus1 + 1;
@@ -2141,6 +2148,12 @@ intel_hevc_vme_reference_state(VADriverContextP ctx,
obj_surface->bo) {
assert(ref_idx >= 0);
vme_context->used_reference_objects[list_index] = obj_surface;
+
+ if(is_hevc10){
+ hevc_encoder_surface = (GenHevcSurface *) obj_surface->private_data;
+ assert(hevc_encoder_surface);
+ obj_surface = hevc_encoder_surface->nv12_surface_obj;
+ }
vme_source_surface_state(ctx, surface_index, obj_surface, encoder_context);
vme_context->ref_index_in_mb[list_index] = (ref_idx << 24 |
ref_idx << 16 |
diff --git a/src/gen9_mfc_hevc.c b/src/gen9_mfc_hevc.c
index b3ee327..9aaf4e9 100644
--- a/src/gen9_mfc_hevc.c
+++ b/src/gen9_mfc_hevc.c
@@ -193,12 +193,21 @@ gen9_hcpe_surface_state(VADriverContextP ctx, struct encode_state *encode_state,
struct intel_batchbuffer *batch = encoder_context->base.batch;
struct object_surface *obj_surface = encode_state->reconstructed_object;
struct gen9_hcpe_context *mfc_context = encoder_context->mfc_context;
+ VAEncSequenceParameterBufferHEVC *pSequenceParameter = (VAEncSequenceParameterBufferHEVC *)encode_state->seq_param_ext->buffer;
+ unsigned int surface_format = SURFACE_FORMAT_PLANAR_420_8;
/* to do */
unsigned int y_cb_offset;
assert(obj_surface);
+ if((pSequenceParameter->seq_fields.bits.bit_depth_luma_minus8 > 0)
+ || (pSequenceParameter->seq_fields.bits.bit_depth_chroma_minus8 > 0))
+ {
+ assert(obj_surface->fourcc == VA_FOURCC_P010);
+ surface_format = SURFACE_FORMAT_P010;
+ }
+
y_cb_offset = obj_surface->y_cb_offset;
BEGIN_BCS_BATCH(batch, 3);
@@ -207,7 +216,7 @@ gen9_hcpe_surface_state(VADriverContextP ctx, struct encode_state *encode_state,
(1 << 28) | /* surface id */
(mfc_context->surface_state.w_pitch - 1)); /* pitch - 1 */
OUT_BCS_BATCH(batch,
- (SURFACE_FORMAT_PLANAR_420_8 << 28) |
+ surface_format << 28 |
y_cb_offset);
ADVANCE_BCS_BATCH(batch);
@@ -217,7 +226,7 @@ gen9_hcpe_surface_state(VADriverContextP ctx, struct encode_state *encode_state,
(0 << 28) | /* surface id */
(mfc_context->surface_state.w_pitch - 1)); /* pitch - 1 */
OUT_BCS_BATCH(batch,
- (SURFACE_FORMAT_PLANAR_420_8 << 28) |
+ surface_format << 28 |
y_cb_offset);
ADVANCE_BCS_BATCH(batch);
}
@@ -588,8 +597,8 @@ gen9_hcpe_hevc_pic_state(VADriverContextP ctx, struct encode_state *encode_state
seq_param->seq_fields.bits.sample_adaptive_offset_enabled_flag << 3 | /* 0 for encoder */
0);
OUT_BCS_BATCH(batch,
- 0 << 27 | /* 8 bit only for encoder */
- 0 << 24 | /* 8 bit only for encoder */
+ seq_param->seq_fields.bits.bit_depth_luma_minus8 << 27 | /* 10 bit for KBL+*/
+ seq_param->seq_fields.bits.bit_depth_chroma_minus8 << 24 | /* 10 bit for KBL+ */
pcm_sample_bit_depth_luma_minus1 << 20 |
pcm_sample_bit_depth_chroma_minus1 << 16 |
seq_param->max_transform_hierarchy_depth_inter << 13 | /* for encoder */
@@ -913,6 +922,11 @@ static void gen9_hcpe_init(VADriverContextP ctx,
int height_in_mb = ALIGN(pSequenceParameter->pic_height_in_luma_samples, 16) / 16;
int num_cu_record = 64;
+ int size_shift = 3;
+
+ if((pSequenceParameter->seq_fields.bits.bit_depth_luma_minus8 > 0)
+ || (pSequenceParameter->seq_fields.bits.bit_depth_chroma_minus8 > 0))
+ size_shift = 2;
if (log2_ctb_size == 5) num_cu_record = 16;
else if (log2_ctb_size == 4) num_cu_record = 4;
@@ -991,12 +1005,12 @@ static void gen9_hcpe_init(VADriverContextP ctx,
/* Current internal buffer for HCP */
- size = ALIGN(pSequenceParameter->pic_width_in_luma_samples, 32) >> 3;
+ size = ALIGN(pSequenceParameter->pic_width_in_luma_samples, 32) >> size_shift;
size <<= 6;
ALLOC_ENCODER_BUFFER((&mfc_context->deblocking_filter_line_buffer), "line buffer", size);
ALLOC_ENCODER_BUFFER((&mfc_context->deblocking_filter_tile_line_buffer), "tile line buffer", size);
- size = ALIGN(pSequenceParameter->pic_height_in_luma_samples + 6 * width_in_ctb, 32) >> 3;
+ size = ALIGN(pSequenceParameter->pic_height_in_luma_samples + 6 * width_in_ctb, 32) >> size_shift;
size <<= 6;
ALLOC_ENCODER_BUFFER((&mfc_context->deblocking_filter_tile_column_buffer), "tile column buffer", size);
@@ -1026,15 +1040,15 @@ static void gen9_hcpe_init(VADriverContextP ctx,
ALLOC_ENCODER_BUFFER((&mfc_context->metadata_tile_column_buffer), "metadata tile column buffer", size);
}
- size = ALIGN(((pSequenceParameter->pic_width_in_luma_samples >> 1) + 3 * width_in_ctb), 16) >> 3;
+ size = ALIGN(((pSequenceParameter->pic_width_in_luma_samples >> 1) + 3 * width_in_ctb), 16) >> size_shift;
size <<= 6;
ALLOC_ENCODER_BUFFER((&mfc_context->sao_line_buffer), "sao line buffer", size);
- size = ALIGN(((pSequenceParameter->pic_width_in_luma_samples >> 1) + 6 * width_in_ctb), 16) >> 3;
+ size = ALIGN(((pSequenceParameter->pic_width_in_luma_samples >> 1) + 6 * width_in_ctb), 16) >> size_shift;
size <<= 6;
ALLOC_ENCODER_BUFFER((&mfc_context->sao_tile_line_buffer), "sao tile line buffer", size);
- size = ALIGN(((pSequenceParameter->pic_height_in_luma_samples >> 1) + 6 * height_in_ctb), 16) >> 3;
+ size = ALIGN(((pSequenceParameter->pic_height_in_luma_samples >> 1) + 6 * height_in_ctb), 16) >> size_shift;
size <<= 6;
ALLOC_ENCODER_BUFFER((&mfc_context->sao_tile_column_buffer), "sao tile column buffer", size);
@@ -1707,8 +1721,8 @@ gen9_hcpe_hevc_pipeline_slice_programing(VADriverContextP ctx,
}
/* only support for 8-bit pixel bit-depth */
- assert(pSequenceParameter->seq_fields.bits.bit_depth_luma_minus8 == 0);
- assert(pSequenceParameter->seq_fields.bits.bit_depth_chroma_minus8 == 0);
+ assert(pSequenceParameter->seq_fields.bits.bit_depth_luma_minus8 >= 0 && pSequenceParameter->seq_fields.bits.bit_depth_luma_minus8 <= 2);
+ assert(pSequenceParameter->seq_fields.bits.bit_depth_chroma_minus8 >= 0 && pSequenceParameter->seq_fields.bits.bit_depth_chroma_minus8 <= 2);
assert(pPicParameter->pic_init_qp >= 0 && pPicParameter->pic_init_qp < 52);
assert(qp >= 0 && qp < 52);
@@ -2073,7 +2087,6 @@ VAStatus intel_hcpe_hevc_prepare(VADriverContextP ctx,
struct encode_state *encode_state,
struct intel_encoder_context *encoder_context)
{
- struct i965_driver_data *i965 = i965_driver_data(ctx);
struct gen9_hcpe_context *mfc_context = encoder_context->mfc_context;
struct object_surface *obj_surface;
struct object_buffer *obj_buffer;
@@ -2081,45 +2094,20 @@ VAStatus intel_hcpe_hevc_prepare(VADriverContextP ctx,
dri_bo *bo;
VAStatus vaStatus = VA_STATUS_SUCCESS;
int i;
- struct i965_coded_buffer_segment *coded_buffer_segment;
- VAEncSequenceParameterBufferHEVC *pSequenceParameter = (VAEncSequenceParameterBufferHEVC *)encode_state->seq_param_ext->buffer;
+ struct i965_coded_buffer_segment *coded_buffer_segment;
/*Setup all the input&output object*/
/* Setup current frame and current direct mv buffer*/
obj_surface = encode_state->reconstructed_object;
- i965_check_alloc_surface_bo(ctx, obj_surface, 1, VA_FOURCC_NV12, SUBSAMPLE_YUV420);
-
- if (obj_surface->private_data == NULL) {
- uint32_t size;
-
- if (mfc_context->pic_size.ctb_size == 16)
- size = ((pSequenceParameter->pic_width_in_luma_samples + 63) >> 6) *
- ((pSequenceParameter->pic_height_in_luma_samples + 15) >> 4);
- else
- size = ((pSequenceParameter->pic_width_in_luma_samples + 31) >> 5) *
- ((pSequenceParameter->pic_height_in_luma_samples + 31) >> 5);
- size <<= 6; /* in unit of 64bytes */
-
- hevc_encoder_surface = calloc(sizeof(GenHevcSurface), 1);
- assert(hevc_encoder_surface);
- hevc_encoder_surface->motion_vector_temporal_bo =
- dri_bo_alloc(i965->intel.bufmgr,
- "motion vector temporal buffer",
- size,
- 0x1000);
- assert(hevc_encoder_surface->motion_vector_temporal_bo);
-
- obj_surface->private_data = (void *)hevc_encoder_surface;
- obj_surface->free_private_data = (void *)gen_free_hevc_surface;
- }
hevc_encoder_surface = (GenHevcSurface *) obj_surface->private_data;
+ assert(hevc_encoder_surface);
if (hevc_encoder_surface) {
+ hevc_encoder_surface->has_p010_to_nv12_done=0;
hevc_encoder_surface->base.frame_store_id = -1;
mfc_context->current_collocated_mv_temporal_buffer[NUM_HCP_CURRENT_COLLOCATED_MV_TEMPORAL_BUFFERS - 1].bo = hevc_encoder_surface->motion_vector_temporal_bo;
-
dri_bo_reference(hevc_encoder_surface->motion_vector_temporal_bo);
}
@@ -2137,33 +2125,8 @@ VAStatus intel_hcpe_hevc_prepare(VADriverContextP ctx,
dri_bo_reference(obj_surface->bo);
/* Check MV temporal buffer */
- if (obj_surface->private_data == NULL) {
- uint32_t size;
-
- if (mfc_context->pic_size.ctb_size == 16)
- size = ((pSequenceParameter->pic_width_in_luma_samples + 63) >> 6) *
- ((pSequenceParameter->pic_height_in_luma_samples + 15) >> 4);
- else
- size = ((pSequenceParameter->pic_width_in_luma_samples + 31) >> 5) *
- ((pSequenceParameter->pic_height_in_luma_samples + 31) >> 5);
- size <<= 6; /* in unit of 64bytes */
-
- hevc_encoder_surface = calloc(sizeof(GenHevcSurface), 1);
-
- if (hevc_encoder_surface) {
- hevc_encoder_surface->motion_vector_temporal_bo =
- dri_bo_alloc(i965->intel.bufmgr,
- "motion vector temporal buffer",
- size,
- 0x1000);
- assert(hevc_encoder_surface->motion_vector_temporal_bo);
- }
-
- obj_surface->private_data = (void *)hevc_encoder_surface;
- obj_surface->free_private_data = (void *)gen_free_hevc_surface;
- }
-
hevc_encoder_surface = (GenHevcSurface *) obj_surface->private_data;
+ assert(hevc_encoder_surface);
if (hevc_encoder_surface) {
hevc_encoder_surface->base.frame_store_id = -1;
@@ -2176,6 +2139,7 @@ VAStatus intel_hcpe_hevc_prepare(VADriverContextP ctx,
}
}
+
mfc_context->uncompressed_picture_source.bo = encode_state->input_yuv_object->bo;
dri_bo_reference(mfc_context->uncompressed_picture_source.bo);
@@ -2265,6 +2229,14 @@ static void intel_hcpe_brc_init(struct encode_state *encode_state,
int ratio_max = 32;
int ratio = 8;
double buffer_size = 0;
+ int bpp = 1;
+
+ if((pSequenceParameter->seq_fields.bits.bit_depth_luma_minus8 > 0) ||
+ (pSequenceParameter->seq_fields.bits.bit_depth_chroma_minus8 > 0))
+ bpp = 2;
+
+ qp1_size = qp1_size * bpp;
+ qp51_size = qp51_size * bpp;
if (!encode_state->misc_param[VAEncMiscParameterTypeHRD] || !encode_state->misc_param[VAEncMiscParameterTypeHRD]->buffer)
return;
@@ -2733,6 +2705,7 @@ VAStatus gen9_hcpe_pipeline(VADriverContextP ctx,
switch (profile) {
case VAProfileHEVCMain:
+ case VAProfileHEVCMain10:
vaStatus = gen9_hcpe_hevc_encode_picture(ctx, encode_state, encoder_context);
break;
diff --git a/src/gen9_vme.c b/src/gen9_vme.c
index 1625c2b..8cbe052 100644
--- a/src/gen9_vme.c
+++ b/src/gen9_vme.c
@@ -40,6 +40,8 @@
#include "i965_encoder.h"
#include "gen6_vme.h"
#include "gen6_mfc.h"
+#include "gen9_mfc.h"
+#include "intel_media.h"
#ifdef SURFACE_STATE_PADDED_SIZE
#undef SURFACE_STATE_PADDED_SIZE
@@ -334,6 +336,7 @@ gen9_vme_surface_setup(VADriverContextP ctx,
/*Setup surfaces state*/
/* current picture for encoding */
obj_surface = encode_state->input_yuv_object;
+ assert(obj_surface);
gen9_vme_source_surface_state(ctx, 0, obj_surface, encoder_context);
gen9_vme_media_source_surface_state(ctx, 4, obj_surface, encoder_context);
gen9_vme_media_chroma_source_surface_state(ctx, 6, obj_surface, encoder_context);
@@ -1418,10 +1421,19 @@ gen9_vme_hevc_surface_setup(VADriverContextP ctx,
struct intel_encoder_context *encoder_context)
{
struct object_surface *obj_surface;
+ VAEncSequenceParameterBufferHEVC *pSequenceParameter = (VAEncSequenceParameterBufferHEVC *)encode_state->seq_param_ext->buffer;
+ GenHevcSurface *hevc_encoder_surface = NULL;
/*Setup surfaces state*/
/* current picture for encoding */
obj_surface = encode_state->input_yuv_object;
+
+ if((pSequenceParameter->seq_fields.bits.bit_depth_luma_minus8 > 0)
+ || (pSequenceParameter->seq_fields.bits.bit_depth_chroma_minus8 > 0)) {
+ hevc_encoder_surface = (GenHevcSurface *) obj_surface->private_data;
+ assert(hevc_encoder_surface);
+ obj_surface = hevc_encoder_surface->nv12_surface_obj;
+ }
gen9_vme_source_surface_state(ctx, 0, obj_surface, encoder_context);
gen9_vme_media_source_surface_state(ctx, 4, obj_surface, encoder_context);
gen9_vme_media_chroma_source_surface_state(ctx, 6, obj_surface, encoder_context);
@@ -1735,6 +1747,144 @@ static void gen9_vme_hevc_pipeline_programing(VADriverContextP ctx,
intel_batchbuffer_end_atomic(batch);
}
+static VAStatus gen9_intel_init_hevc_surface(VADriverContextP ctx,
+ struct intel_encoder_context *encoder_context,
+ struct encode_state *encode_state,
+ struct object_surface *input_obj_surface)
+{
+ struct i965_driver_data *i965 = i965_driver_data(ctx);
+ struct gen9_hcpe_context *mfc_context = encoder_context->mfc_context;
+ VAEncSequenceParameterBufferHEVC *pSequenceParameter = (VAEncSequenceParameterBufferHEVC *)encode_state->seq_param_ext->buffer;
+ GenHevcSurface *hevc_encoder_surface;
+ struct i965_surface src_surface, dst_surface;
+ struct object_surface *obj_surface;
+ VARectangle rect;
+ VAStatus status;
+
+ uint32_t size;
+
+ obj_surface = input_obj_surface;
+ assert(obj_surface && obj_surface->bo);
+
+ if (obj_surface->private_data == NULL) {
+
+ if (mfc_context->pic_size.ctb_size == 16)
+ size = ((pSequenceParameter->pic_width_in_luma_samples + 63) >> 6) *
+ ((pSequenceParameter->pic_height_in_luma_samples + 15) >> 4);
+ else
+ size = ((pSequenceParameter->pic_width_in_luma_samples + 31) >> 5) *
+ ((pSequenceParameter->pic_height_in_luma_samples + 31) >> 5);
+ size <<= 6; /* in unit of 64bytes */
+
+ hevc_encoder_surface = calloc(sizeof(GenHevcSurface), 1);
+
+ assert(hevc_encoder_surface);
+ hevc_encoder_surface->motion_vector_temporal_bo =
+ dri_bo_alloc(i965->intel.bufmgr,
+ "motion vector temporal buffer",
+ size,
+ 0x1000);
+ assert(hevc_encoder_surface->motion_vector_temporal_bo);
+
+ hevc_encoder_surface->ctx = ctx;
+ hevc_encoder_surface->nv12_surface_obj = NULL;
+ hevc_encoder_surface->nv12_surface_id = VA_INVALID_SURFACE;
+ hevc_encoder_surface->has_p010_to_nv12_done = 0;
+
+ obj_surface->private_data = (void *)hevc_encoder_surface;
+ obj_surface->free_private_data = (void *)gen_free_hevc_surface;
+ }
+
+ hevc_encoder_surface = (GenHevcSurface *) obj_surface->private_data;
+
+ if(!hevc_encoder_surface->has_p010_to_nv12_done && obj_surface->fourcc == VA_FOURCC_P010)
+ {
+ // convert input
+ rect.x = 0;
+ rect.y = 0;
+ rect.width = obj_surface->orig_width;
+ rect.height = obj_surface->orig_height;
+
+ src_surface.base = (struct object_base *)obj_surface;
+ src_surface.type = I965_SURFACE_TYPE_SURFACE;
+ src_surface.flags = I965_SURFACE_FLAG_FRAME;
+
+ if(SURFACE(hevc_encoder_surface->nv12_surface_id) == NULL)
+ {
+ status = i965_CreateSurfaces(ctx,
+ obj_surface->orig_width,
+ obj_surface->orig_height,
+ VA_RT_FORMAT_YUV420,
+ 1,
+ &hevc_encoder_surface->nv12_surface_id);
+ assert(status == VA_STATUS_SUCCESS);
+
+ if (status != VA_STATUS_SUCCESS)
+ return status;
+ }
+
+ obj_surface = SURFACE(hevc_encoder_surface->nv12_surface_id);
+ hevc_encoder_surface->nv12_surface_obj = obj_surface;
+ assert(obj_surface);
+ i965_check_alloc_surface_bo(ctx, obj_surface, 1, VA_FOURCC_NV12, SUBSAMPLE_YUV420);
+
+ dst_surface.base = (struct object_base *)obj_surface;
+ dst_surface.type = I965_SURFACE_TYPE_SURFACE;
+ dst_surface.flags = I965_SURFACE_FLAG_FRAME;
+
+ status = i965_image_processing(ctx,
+ &src_surface,
+ &rect,
+ &dst_surface,
+ &rect);
+ assert(status == VA_STATUS_SUCCESS);
+ hevc_encoder_surface->has_p010_to_nv12_done = 1;
+ }
+ return VA_STATUS_SUCCESS;
+}
+
+static VAStatus gen9_intel_hevc_input_check(VADriverContextP ctx,
+ struct encode_state *encode_state,
+ struct intel_encoder_context *encoder_context)
+{
+ struct i965_driver_data *i965 = i965_driver_data(ctx);
+ struct gen9_hcpe_context *mfc_context = encoder_context->mfc_context;
+ struct object_surface *obj_surface;
+ GenHevcSurface *hevc_encoder_surface = NULL;
+ int i;
+
+ obj_surface = SURFACE(encode_state->current_render_target);
+ assert(obj_surface && obj_surface->bo);
+ hevc_encoder_surface = (GenHevcSurface *) obj_surface->private_data;
+ if(hevc_encoder_surface)
+ hevc_encoder_surface->has_p010_to_nv12_done = 0;
+ gen9_intel_init_hevc_surface(ctx,encoder_context,encode_state,obj_surface);
+
+ /* Setup current frame and current direct mv buffer*/
+ obj_surface = encode_state->reconstructed_object;
+ hevc_encoder_surface = NULL;
+ hevc_encoder_surface = (GenHevcSurface *) obj_surface->private_data;
+ if(hevc_encoder_surface)
+ hevc_encoder_surface->has_p010_to_nv12_done = 1;
+ gen9_intel_init_hevc_surface(ctx,encoder_context,encode_state,obj_surface);
+
+ /* Setup reference frames and direct mv buffers*/
+ for (i = 0; i < MAX_HCP_REFERENCE_SURFACES; i++) {
+ obj_surface = encode_state->reference_objects[i];
+
+ if (obj_surface && obj_surface->bo) {
+ mfc_context->reference_surfaces[i].bo = obj_surface->bo;
+ dri_bo_reference(obj_surface->bo);
+
+ gen9_intel_init_hevc_surface(ctx,encoder_context,encode_state,obj_surface);
+ } else {
+ break;
+ }
+ }
+
+ return VA_STATUS_SUCCESS;
+}
+
static VAStatus gen9_vme_hevc_prepare(VADriverContextP ctx,
struct encode_state *encode_state,
struct intel_encoder_context *encoder_context)
@@ -1751,6 +1901,9 @@ static VAStatus gen9_vme_hevc_prepare(VADriverContextP ctx,
vme_context->hevc_level = pSequenceParameter->general_level_idc;
}
+ //internal input check for main10
+ gen9_intel_hevc_input_check(ctx,encode_state,encoder_context);
+
intel_vme_hevc_update_mbmv_cost(ctx, encode_state, encoder_context);
/*Setup all the memory object*/
--
2.7.4
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