shithub: libvpx

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Pass partition info to encode frame result

Init the memory for partition information in "EncodeFrameResult".
And pass the partition information of vp9 encoder to it through
the interface: "update_encode_frame_result()".

Change-Id: Iea049e661da79f54d41da7924b9ef28ff7cfbfa3

--- a/vp9/encoder/vp9_encoder.c

+++ b/vp9/encoder/vp9_encoder.c

@@ -7229,6 +7229,9 @@

     const YV12_BUFFER_CONFIG *source_frame,

     const YV12_BUFFER_CONFIG *coded_frame, int quantize_index,

     uint32_t bit_depth, uint32_t input_bit_depth, const FRAME_COUNTS *counts,

+#if CONFIG_RATE_CTRL

+    const PARTITION_INFO *partition_info,

+#endif  // CONFIG_RATE_CTRL

     ENCODE_FRAME_RESULT *encode_frame_result) {

 #if CONFIG_RATE_CTRL

   PSNR_STATS psnr;

@@ -7243,6 +7246,7 @@

   encode_frame_result->psnr = psnr.psnr[0];

   encode_frame_result->sse = psnr.sse[0];

   copy_frame_counts(counts, &encode_frame_result->frame_counts);

+  encode_frame_result->partition_info = partition_info;

 #else   // CONFIG_RATE_CTRL

   (void)bit_depth;

   (void)input_bit_depth;

@@ -7551,6 +7555,9 @@

         cpi->twopass.gf_group.update_type[cpi->twopass.gf_group.index],

         cpi->Source, get_frame_new_buffer(cm), vp9_get_quantizer(cpi),

         cpi->oxcf.input_bit_depth, cm->bit_depth, cpi->td.counts,

+#if CONFIG_RATE_CTRL

+        cpi->partition_info,

+#endif  // CONFIG_RATE_CTRL

         encode_frame_result);

     vp9_twopass_postencode_update(cpi);

   } else if (cpi->use_svc) {

--- a/vp9/encoder/vp9_encoder.h

+++ b/vp9/encoder/vp9_encoder.h

@@ -895,6 +895,7 @@

   double psnr;

   uint64_t sse;

   FRAME_COUNTS frame_counts;

+  const PARTITION_INFO *partition_info;

 #endif  // CONFIG_RATE_CTRL

   int quantize_index;

 } ENCODE_FRAME_RESULT;

--- a/vp9/simple_encode.cc

+++ b/vp9/simple_encode.cc

@@ -8,6 +8,7 @@

  *  be found in the AUTHORS file in the root of the source tree.

  */

+#include <memory>

 #include <vector>

 #include "vp9/common/vp9_entropymode.h"

 #include "vp9/common/vp9_enums.h"

@@ -101,6 +102,22 @@

   }

 }

+static void update_partition_info(const PARTITION_INFO *input_partition_info,

+                                  const int num_rows_4x4,

+                                  const int num_cols_4x4,

+                                  PartitionInfo *output_partition_info) {

+  const int num_units_4x4 = num_rows_4x4 * num_cols_4x4;

+  for (int i = 0; i < num_units_4x4; ++i) {

+    output_partition_info[i].row = input_partition_info[i].row;

+    output_partition_info[i].column = input_partition_info[i].column;

+    output_partition_info[i].row_start = input_partition_info[i].row_start;

+    output_partition_info[i].column_start =

+        input_partition_info[i].column_start;

+    output_partition_info[i].width = input_partition_info[i].width;

+    output_partition_info[i].height = input_partition_info[i].height;

+  }

+}

+

 static void update_frame_counts(const FRAME_COUNTS *input_counts,

                                 FrameCounts *output_counts) {

   // Init array sizes.

@@ -333,6 +350,10 @@

   encode_frame_result->psnr = encode_frame_info->psnr;

   encode_frame_result->sse = encode_frame_info->sse;

   encode_frame_result->quantize_index = encode_frame_info->quantize_index;

+  update_partition_info(encode_frame_info->partition_info,

+                        encode_frame_result->num_rows_4x4,

+                        encode_frame_result->num_cols_4x4,

+                        encode_frame_result->partition_info.get());

   update_frame_counts(&encode_frame_info->frame_counts,

                       &encode_frame_result->frame_counts);

 }

@@ -405,6 +426,8 @@

   impl_ptr_ = std::unique_ptr<EncodeImpl>(new EncodeImpl());

   frame_width_ = frame_width;

   frame_height_ = frame_height;

+  num_rows_4x4_ = get_num_unit_4x4(frame_width);

+  num_cols_4x4_ = get_num_unit_4x4(frame_height);

   frame_rate_num_ = frame_rate_num;

   frame_rate_den_ = frame_rate_den;

   target_bitrate_ = target_bitrate;

@@ -566,6 +589,11 @@

   const size_t max_coding_data_byte_size = frame_width_ * frame_height_ * 3;

   encode_frame_result->coding_data = std::move(

       std::unique_ptr<uint8_t[]>(new uint8_t[max_coding_data_byte_size]));

+  encode_frame_result->num_rows_4x4 = num_rows_4x4_;

+  encode_frame_result->num_cols_4x4 = num_cols_4x4_;

+  encode_frame_result->partition_info =

+      std::move(std::unique_ptr<PartitionInfo[]>(

+          new PartitionInfo[num_rows_4x4_ * num_cols_4x4_]));

   int64_t time_stamp;

   int64_t time_end;

   int flush = 1;  // Make vp9_get_compressed_data encode a frame

--- a/vp9/simple_encode.h

+++ b/vp9/simple_encode.h

@@ -25,6 +25,17 @@

   kAlternateReference,

 };

+// The frame is split to 4x4 blocks.

+// This structure contains the information of each 4x4 block.

+struct PartitionInfo {

+  int row;           // row pixel offset of current 4x4 block

+  int column;        // column pixel offset of current 4x4 block

+  int row_start;     // row pixel offset of the start of the prediction block

+  int column_start;  // column pixel offset of the start of the prediction block

+  int width;         // prediction block width

+  int height;        // prediction block height

+};

+

 struct EncodeFrameInfo {

   int show_idx;

   FrameType frame_type;

@@ -126,6 +137,10 @@

   uint64_t sse;

   int quantize_index;

   FrameCounts frame_counts;

+  int num_rows_4x4;  // number of row units, in size of 4.

+  int num_cols_4x4;  // number of column units, in size of 4.

+  // The pointer to the partition information of the frame.

+  std::unique_ptr<PartitionInfo[]> partition_info;

 };

 struct GroupOfPicture {

@@ -212,8 +227,10 @@

  private:

   class EncodeImpl;

-  int frame_width_;

-  int frame_height_;

+  int frame_width_;   // frame width in pixels.

+  int frame_height_;  // frame height in pixels.

+  int num_rows_4x4_;  // number of row units, in size of 4.

+  int num_cols_4x4_;  // number of column units, in size of 4.

   int frame_rate_num_;

   int frame_rate_den_;

   int target_bitrate_;