More work on the slice encoding, trying to send some dummy data

src/cabac.c

@@ -14,10 +14,11 @@
 #include <stdio.h>
 #include <math.h>
 #include "global.h"
-#include "cabac.h"
 #include "bitstream.h"
+#include "cabac.h"
 
-const  uint8_t g_aucNextStateMPS[ 128 ] =
+
+const uint8_t g_aucNextStateMPS[ 128 ] =
 {
   2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
   18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,

src/cabac.h

@@ -13,10 +13,6 @@
 #ifndef __CABAC_H
 #define __CABAC_H
 
-#include "bitstream.h"
-
-
-
 extern const uint8_t g_aucNextStateMPS[ 128 ];
 extern const uint8_t g_aucNextStateLPS[ 128 ];
 extern const uint32_t g_entropyBits[128];
@@ -30,6 +26,7 @@ typedef struct
   uint8_t  ucState;
   uint32_t binsCoded;
 } cabac_ctx;
+
 #define CTX_STATE(ctx) (ctx.ucState>>1)
 #define CTX_MPS(ctx) (ctx.ucState&1)
 

src/encoder.c

@@ -32,6 +32,13 @@ void init_encoder_input(encoder_input* input,FILE* inputfile, uint32_t width, ui
   input->width = width;
   input->height = height;
 
+  input->height_in_LCU = height / LCU_WIDTH;
+  input->width_in_LCU =  width / LCU_WIDTH;
+  if(input->height_in_LCU * LCU_WIDTH < height)
+    input->height_in_LCU++;
+  if(input->width_in_LCU * LCU_WIDTH < width)
+    input->width_in_LCU++;
+
   input->cur_pic.width = width;
   input->cur_pic.height = height;
   input->cur_pic.referenced = 0;
@@ -59,8 +66,20 @@ void encode_one_frame(encoder_control* encoder)
     nal_write(encoder->output, encoder->stream->buffer, encoder->stream->buffer_pos, 1, NAL_PIC_PARAMETER_SET, 0);
     bitstream_clear_buffer(encoder->stream);
 
+
     encode_slice_header(encoder);
     encode_slice_data(encoder);
+    cabac_flush(&cabac);
+    bitstream_align(encoder->stream);
+    bitstream_flush(encoder->stream);
+    nal_write(encoder->output, encoder->stream->buffer, encoder->stream->buffer_pos, 0, NAL_IDR_SLICE, 0);
+    bitstream_clear_buffer(encoder->stream);
+  }
+  else
+  {
+    encode_slice_header(encoder);
+    encode_slice_data(encoder);
+    cabac_flush(&cabac);
     bitstream_align(encoder->stream);
     bitstream_flush(encoder->stream);
     nal_write(encoder->output, encoder->stream->buffer, encoder->stream->buffer_pos, 0, NAL_IDR_SLICE, 0);
@@ -116,7 +135,9 @@ void encode_seq_parameter_set(encoder_control* encoder)
   WRITE_U(encoder->stream, 0, 1, "pic_cropping_flag");
   WRITE_UE(encoder->stream, 0, "bit_depth_luma_minus8");
   WRITE_UE(encoder->stream, 0, "bit_depth_chroma_minus8");
-  WRITE_U(encoder->stream, 0, 1, "pcm_enabled_flag");
+  WRITE_U(encoder->stream, 1, 1, "pcm_enabled_flag");
+  WRITE_U(encoder->stream, 7, 4, "pcm_bit_depth_luma_minus1");
+  WRITE_U(encoder->stream, 7, 4, "pcm_bit_depth_chroma_minus1");
   WRITE_U(encoder->stream, 0, 1, "qpprime_y_zero_transquant_bypass_flag");
   WRITE_UE(encoder->stream, 0, "log2_max_pic_order_cnt_lsb_minus4");
   WRITE_UE(encoder->stream, 0, "max_dec_pic_buffering");
@@ -131,15 +152,16 @@ void encode_seq_parameter_set(encoder_control* encoder)
   //If log2MinCUSize == 3
   WRITE_U(encoder->stream, 0, 1, "DisInter4x4");
 
-  /* //IF PCM
+  //IF PCM
   {
     WRITE_UE(encoder->stream, 0, "log2_min_pcm_coding_block_size_minus3");
     WRITE_UE(encoder->stream, 0, "log2_diff_max_min_pcm_coding_block_size");
   }
-  */
+  
 
   WRITE_UE(encoder->stream, 2, "max_transform_hierarchy_depth_inter");
   WRITE_UE(encoder->stream, 2, "max_transform_hierarchy_depth_intra");
+
   WRITE_U(encoder->stream, 0, 1, "scaling_list_enable_flag");
   WRITE_U(encoder->stream, 0, 1, "chroma_pred_from_luma_enabled_flag");
   WRITE_U(encoder->stream, 0, 1, "transform_skip_enabled_flag");
@@ -149,6 +171,9 @@ void encode_seq_parameter_set(encoder_control* encoder)
   WRITE_U(encoder->stream, 0, 1, "nsrqt_enabled_flag");
   WRITE_U(encoder->stream, 0, 1, "sample_adaptive_offset_enabled_flag");
 	WRITE_U(encoder->stream, 0, 1, "adaptive_loop_filter_enabled_flag");
+  //IF PCM
+    WRITE_U(encoder->stream, 0, 1, "pcm_loop_filter_disable_flag");
+  //endif
   WRITE_U(encoder->stream, 0, 1, "temporal_id_nesting_flag");	
   WRITE_UE(encoder->stream, 0, "num_short_term_ref_pic_sets");	
   WRITE_U(encoder->stream, 0, 1, "long_term_ref_pics_present_flag");	
@@ -158,6 +183,9 @@ void encode_seq_parameter_set(encoder_control* encoder)
 
 void encode_slice_header(encoder_control* encoder)
 {
+#ifdef _DEBUG
+  printf("=========== Slice ===========\n");
+#endif
 
   WRITE_U(encoder->stream, 1, 1, "first_slice_in_pic_flag");
   WRITE_UE(encoder->stream, SLICE_I, "slice_type");
@@ -181,12 +209,45 @@ void encode_slice_header(encoder_control* encoder)
   /*
    Skip unpresent flags */
   // if !entropy_slice_flag
-  WRITE_UE(encoder->stream, 0, "slice_qp_delta");
+    WRITE_UE(encoder->stream, 0, "slice_qp_delta");
+    WRITE_UE(encoder->stream, 0, "5_minus_max_num_merge_cand");
 }
   
+cabac_ctx SplitFlagSCModel;
 
 void encode_slice_data(encoder_control* encoder)
 {
   uint16_t xCtb,yCtb;
+  cxt_init(&SplitFlagSCModel, 26, 0);
+  cxt_init(&cabac.ctx, 26, 0);
+  for(yCtb = 0; yCtb < encoder->in.height_in_LCU; yCtb++)
+  {
+    for(xCtb = 0; xCtb < encoder->in.width_in_LCU; xCtb++)
+    {
+      uint8_t depth = 0;
+      encode_coding_tree(encoder, xCtb,yCtb, depth);
+    }
+  }
+}
+
+void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, uint8_t depth)
+{
+  
+  //Split flag
+  cabac_encodeBin(&cabac, 5);
+
+  /* coding_unit( x0, y0, log2CbSize ) */
+   /* prediction_unit 2Nx2N*/
+   //If MODE_INTRA
+    
+   //endif
+   
+   /* end prediction unit */  
+   cabac_encodeBin(&cabac, 0); //prev_intra_luma_pred_flag
+
+   cabac_encodeBin(&cabac, 1); //rem_intra_luma_pred_mode
+
+  /* end coding_unit */
+  
 }
 

src/encoder.h

@@ -13,8 +13,8 @@
 #ifndef _ENCODER_H
 #define _ENCODER_H
 
-#include "bitstream.h"
 #include "picture.h"
+#include "bitstream.h"
 
 typedef struct encoder_control;
 
@@ -58,5 +58,6 @@ void encode_seq_parameter_set(encoder_control* encoder);
 void encode_pic_parameter_set(encoder_control* encoder);
 void encode_slice_data(encoder_control* encoder);
 void encode_slice_header(encoder_control* encoder);
+void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, uint8_t depth);
 
 #endif

src/global.h

@@ -23,7 +23,7 @@
 #define MAX(a,b) (((a)<(b))?(b):(a))
 #define MIN(a,b) (((a)>(b))?(b):(a))
 
-#define LCU 64 /*!< Largest Coding Unit */
+#define LCU_WIDTH 64 /*!< Largest Coding Unit */
 
 #define VERSION_STRING "0.1               "
 #define VERSION 0.1
@@ -43,5 +43,4 @@
 #define MODE_NONE  15
 
 
-
 #endif

src/nal.c

@@ -17,9 +17,12 @@
 #include <string.h>
 #include "global.h"
 #include "config.h"
-#include "encoder.h"
-#include "cabac.h"
+#include "bitstream.h"
 #include "picture.h"
+#include "cabac.h"
+#include "encoder.h"
+
+
 #include "nal.h"
 
 void nal_write(FILE* output, uint8_t* buffer, uint32_t buffer_len, uint8_t nal_ref, uint8_t nal_type, uint8_t temporal_id)
@@ -32,7 +35,7 @@ void nal_write(FILE* output, uint8_t* buffer, uint32_t buffer_len, uint8_t nal_r
   const uint8_t zero = 0x00;
 
   //start_code_prefix_one_3bytes
-  fwrite(&zero, 1, 1, output);
+  //fwrite(&zero, 1, 1, output);
   fwrite(&zero, 1, 1, output);
   fwrite(&zero, 1, 1, output);
   fwrite(&start_code_prefix_one_3bytes, 1, 1, output);

src/nal.h

@@ -10,7 +10,11 @@
     
     NAL function headers
 */
+#ifndef __NAL_H
+#define __NAL_H
 
-enum { NAL_IDR_SLICE = 5, NAL_SEQ_PARAMETER_SET = 7, NAL_PIC_PARAMETER_SET = 8 };
+enum { NAL_IDR_SLICE = 0x45, NAL_SEQ_PARAMETER_SET = 7, NAL_PIC_PARAMETER_SET = 8 };
 
 void nal_write(FILE* output, uint8_t* buffer, uint32_t buffer_len, uint8_t nal_ref, uint8_t nal_type, uint8_t temporal_id);
+
+#endif