mirror of
https://github.com/ultravideo/uvg266.git
synced 2024-11-27 11:24:05 +00:00
Started digging into the intra prediction stuff
This commit is contained in:
Marko Viitanen
parent
bf11aad827
commit
9bfd542b73
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@ -84,8 +84,10 @@
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<ClCompile Include="..\..\src\config.c" />
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<ClCompile Include="..\..\src\encmain.c" />
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<ClCompile Include="..\..\src\encoder.c" />
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<ClCompile Include="..\..\src\intra.c" />
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<ClCompile Include="..\..\src\nal.c" />
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<ClCompile Include="..\..\src\picture.c" />
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<ClCompile Include="..\..\src\transform.c" />
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="..\..\src\bitstream.h" />
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@ -93,8 +95,10 @@
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<ClInclude Include="..\..\src\config.h" />
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<ClInclude Include="..\..\src\encoder.h" />
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<ClInclude Include="..\..\src\global.h" />
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<ClInclude Include="..\..\src\intra.h" />
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<ClInclude Include="..\..\src\nal.h" />
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<ClInclude Include="..\..\src\picture.h" />
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<ClInclude Include="..\..\src\transform.h" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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@ -36,6 +36,12 @@
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<ClCompile Include="..\..\src\nal.c">
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<Filter>Source Files</Filter>
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</ClCompile>
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<ClCompile Include="..\..\src\intra.c">
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<Filter>Source Files</Filter>
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</ClCompile>
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<ClCompile Include="..\..\src\transform.c">
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<Filter>Source Files</Filter>
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</ClCompile>
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="..\..\src\global.h">
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@ -59,5 +65,11 @@
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<ClInclude Include="..\..\src\nal.h">
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<Filter>Header Files</Filter>
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</ClInclude>
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<ClInclude Include="..\..\src\intra.h">
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<Filter>Header Files</Filter>
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</ClInclude>
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<ClInclude Include="..\..\src\transform.h">
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<Filter>Header Files</Filter>
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</ClInclude>
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</ItemGroup>
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</Project>
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110
src/encoder.c
110
src/encoder.c
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@ -52,6 +52,11 @@ void init_encoder_input(encoder_input* input,FILE* inputfile, uint32_t width, ui
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input->cur_pic.uData = (uint8_t *)malloc((width*height)>>2);
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input->cur_pic.vData = (uint8_t *)malloc((width*height)>>2);
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/* Reconstruction buffers */
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input->cur_pic.yRecData = (uint8_t *)malloc(width*height);
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input->cur_pic.uRecData = (uint8_t *)malloc((width*height)>>2);
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input->cur_pic.vRecData = (uint8_t *)malloc((width*height)>>2);
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/* Allocate memory for CU info 2D array */
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//ToDo: we don't need this much space on LCU...MAX_DEPTH-1
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input->cur_pic.CU = (CU_info**)malloc((MAX_DEPTH+1)*sizeof(CU_info*));
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@ -68,12 +73,14 @@ void encode_one_frame(encoder_control* encoder)
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/* output parameters before first frame */
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if(encoder->frame == 0)
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{
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/* Sequence Parameter Set (SPS) */
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encode_seq_parameter_set(encoder);
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bitstream_align(encoder->stream);
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bitstream_flush(encoder->stream);
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nal_write(encoder->output, encoder->stream->buffer, encoder->stream->buffer_pos, 1, NAL_SEQ_PARAMETER_SET, 1);
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bitstream_clear_buffer(encoder->stream);
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/* Picture Parameter Set (PPS) */
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encode_pic_parameter_set(encoder);
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bitstream_align(encoder->stream);
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bitstream_flush(encoder->stream);
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@ -94,6 +101,7 @@ void encode_one_frame(encoder_control* encoder)
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}
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else if(encoder->frame < 3)
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{
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/* Non-IDR slice */
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cabac_start(&cabac);
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encoder->in.cur_pic.type = NAL_NONIDR_SLICE;
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encode_slice_header(encoder);
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@ -143,6 +151,7 @@ void encode_seq_parameter_set(encoder_control* encoder)
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#ifdef _DEBUG
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printf("=========== Sequence Parameter Set ID: 0 ===========\n");
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#endif
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/* ToDo: profile IDC and level IDC should be defined later on */
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WRITE_U(encoder->stream, 0, 8, "profile_idc");
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WRITE_U(encoder->stream, 0, 8, "reserved_zero_8bits");
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WRITE_U(encoder->stream, 0, 8, "level_idc");
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@ -152,6 +161,7 @@ void encode_seq_parameter_set(encoder_control* encoder)
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WRITE_UE(encoder->stream, encoder->in.width, "pic_width_in_luma_samples");
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WRITE_UE(encoder->stream, encoder->in.height, "pic_height_in_luma_samples");
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WRITE_U(encoder->stream, 0, 1, "pic_cropping_flag");
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/* ToDo: 10bit support? */
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WRITE_UE(encoder->stream, 0, "bit_depth_luma_minus8");
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WRITE_UE(encoder->stream, 0, "bit_depth_chroma_minus8");
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WRITE_U(encoder->stream, ENABLE_PCM, 1, "pcm_enabled_flag");
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@ -166,7 +176,7 @@ void encode_seq_parameter_set(encoder_control* encoder)
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WRITE_UE(encoder->stream, 0, "max_latency_increase");
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WRITE_U(encoder->stream, 0, 1, "restricted_ref_pic_lists_flag");
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WRITE_UE(encoder->stream, 1, "log2_min_coding_block_size_minus3");
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WRITE_UE(encoder->stream, 2, "log2_diff_max_min_coding_block_size");
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WRITE_UE(encoder->stream, MAX_DEPTH, "log2_diff_max_min_coding_block_size");
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WRITE_UE(encoder->stream, 0, "log2_min_transform_block_size_minus2");
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WRITE_UE(encoder->stream, 3, "log2_diff_max_min_transform_block_size");
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@ -199,7 +209,6 @@ void encode_seq_parameter_set(encoder_control* encoder)
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WRITE_U(encoder->stream, 0, 1, "long_term_ref_pics_present_flag");
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WRITE_U(encoder->stream, 0, 2, "tiles_or_entropy_coding_sync_idc");
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WRITE_U(encoder->stream, 0, 1, "sps_extension_flag");
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//WRITE_U(encoder->stream, 0, 8, "stuffing");
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}
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void encode_slice_header(encoder_control* encoder)
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@ -228,34 +237,53 @@ void encode_slice_header(encoder_control* encoder)
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WRITE_U(encoder->stream, encoder->frame, 8, "pic_order_cnt_lsb");
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WRITE_U(encoder->stream, 1, 1, "short_term_ref_pic_set_sps_flag");
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WRITE_UE(encoder->stream, 0, "short_term_ref_pic_set_idx");
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}
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//end if
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//end if
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/*
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Skip unpresent flags */
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/* Skip flags that are not present */
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// if !entropy_slice_flag
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WRITE_UE(encoder->stream, 0, "slice_qp_delta");
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WRITE_UE(encoder->stream, 0, "5_minus_max_num_merge_cand");
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}
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/* CONTEXTS */
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/* ToDo: move somewhere else */
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cabac_ctx *SplitFlagSCModel;
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cabac_ctx g_SplitFlagSCModel[3];
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cabac_ctx PCMFlagSCModel;
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cabac_ctx g_SplitFlagSCModel[3]; /*<! \brief split flag context models */
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cabac_ctx g_IntraModeSCModel; /*<! \brief intra mode context models */
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cabac_ctx g_ChromaPredSCModel[2];
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cabac_ctx g_TransSubdivSCModel[4]; /*<! \brief intra mode context models */
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cabac_ctx g_QtCbfSCModel[8];
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cabac_ctx PartSizeSCModel;
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void encode_slice_data(encoder_control* encoder)
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{
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uint16_t xCtb,yCtb;
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uint16_t xCtb,yCtb,i;
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/* Initialize contexts */
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/* ToDo: add P/B slice */
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cxt_init(&g_SplitFlagSCModel[0], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][0]);
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cxt_init(&g_SplitFlagSCModel[1], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][1]);
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cxt_init(&g_SplitFlagSCModel[2], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][2]);
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cxt_init(&PartSizeSCModel, encoder->QP, 154);
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//g_SplitFlagSCModel[1].ucState = 47;
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//g_SplitFlagSCModel[2].ucState = 36;
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cxt_init(&g_IntraModeSCModel, encoder->QP, INIT_INTRA_PRED_MODE[SLICE_I]);
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cxt_init(&g_ChromaPredSCModel[0], encoder->QP, INIT_CHROMA_PRED_MODE[SLICE_I][0]);
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cxt_init(&g_ChromaPredSCModel[1], encoder->QP, INIT_CHROMA_PRED_MODE[SLICE_I][1]);
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for(i = 0; i < 4; i++)
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{
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cxt_init(&g_TransSubdivSCModel[i], encoder->QP, INIT_TRANS_SUBDIV_FLAG[SLICE_I][i]);
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}
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for(i = 0; i < 8; i++)
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{
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cxt_init(&g_QtCbfSCModel[i], encoder->QP, INIT_QT_CBF[SLICE_I][i]);
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}
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encoder->in.cur_pic.CU[1][0].type = CU_INTRA;
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encoder->in.cur_pic.CU[1][2].type = CU_INTRA;
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/* Loop through every LCU in the slice */
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for(yCtb = 0; yCtb < encoder->in.height_in_LCU; yCtb++)
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{
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uint8_t lastCUy = (yCtb == (encoder->in.height_in_LCU-1))?1:0;
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@ -264,16 +292,14 @@ void encode_slice_data(encoder_control* encoder)
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uint8_t lastCUx = (xCtb == (encoder->in.width_in_LCU-1))?1:0;
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uint8_t depth = 0;
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encode_coding_tree(encoder, xCtb<<2,yCtb<<2, depth);
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//Terminating bit
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/* Recursive function for looping through all the sub-blocks */
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encode_coding_tree(encoder, xCtb<<MAX_DEPTH,yCtb<<MAX_DEPTH, depth);
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/* signal Terminating bit */
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if(!lastCUx || !lastCUy)
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{
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cabac_encodeBinTrm(&cabac, 0);
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}
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else
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{
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cabac_encodeBinTrm(&cabac, 1);
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}
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}
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}
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}
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@ -283,6 +309,7 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
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int i,x,y;
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uint8_t split_flag = (depth!=1)?1:0;
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uint8_t split_model = 0;
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/* Get left and top block split_flags and if they are present and true, increase model number */
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if(xCtb > 0 && GET_SPLITDATA(&(encoder->in.cur_pic.CU[depth][(xCtb>>(MAX_DEPTH-depth))-1+(yCtb>>(MAX_DEPTH-depth))*(encoder->in.width_in_LCU<<MAX_DEPTH)])) == 1)
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{
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@ -301,11 +328,13 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
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CABAC_BIN(&cabac, split_flag, "SplitFlag");
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if(split_flag)
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{
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/* Split blocks and remember to change x and y block positions */
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uint8_t change = 1<<(MAX_DEPTH-1-depth);
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encode_coding_tree(encoder,xCtb,yCtb,depth+1);
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encode_coding_tree(encoder,xCtb+change,yCtb,depth+1);
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encode_coding_tree(encoder,xCtb,yCtb+change,depth+1);
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encode_coding_tree(encoder,xCtb+change,yCtb+change,depth+1);
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/* We don't need to do anything else here */
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return;
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}
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}
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@ -314,7 +343,7 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
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//if !intra PREDMODE
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/* if depth = MAX_DEPTH */
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//PartSize
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if(depth == 2)
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if(depth == MAX_DEPTH)
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{
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cabac.ctx = &PartSizeSCModel;
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CABAC_BIN(&cabac, 1, "PartSize");
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@ -322,37 +351,40 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
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/*end partsize*/
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//If MODE_INTRA
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//cabac.ctx = &PCMFlagSCModel;
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/* Code IPCM block */
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if(encoder->in.cur_pic.CU[depth][(xCtb>>(MAX_DEPTH-depth))+(yCtb>>(MAX_DEPTH-depth))*(encoder->in.width_in_LCU<<MAX_DEPTH)].type <= CU_PCM)
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{
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cabac_encodeBinTrm(&cabac, 1);
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printf("\tIPCMFlag = 1\n");
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//printf("\tIPCMFlag = 1\n");
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cabac_finish(&cabac);
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WRITE_U(cabac.stream, 1, 1, "stop_bit");
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WRITE_U(cabac.stream, 0, 1, "numSubseqIPCM_flag");
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bitstream_align(cabac.stream);
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/* PCM sample */
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{
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uint8_t *base = &encoder->in.cur_pic.yData[xCtb*16 + (yCtb*16)*encoder->in.width];
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uint8_t *baseCb = &encoder->in.cur_pic.uData[(xCtb*8 + (yCtb*8)*encoder->in.width/2)];
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uint8_t *baseCr = &encoder->in.cur_pic.vData[(xCtb*8 + (yCtb*8)*encoder->in.width/2)];
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for(y = 0; y < 32; y++)
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uint8_t *base = &encoder->in.cur_pic.yData[xCtb*(LCU_WIDTH>>(depth+1)) + (yCtb*(LCU_WIDTH>>(depth+1)))*encoder->in.width];
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uint8_t *baseCb = &encoder->in.cur_pic.uData[(xCtb*(LCU_WIDTH>>(depth+2)) + (yCtb*(LCU_WIDTH>>(depth+2)))*encoder->in.width/2)];
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uint8_t *baseCr = &encoder->in.cur_pic.vData[(xCtb*(LCU_WIDTH>>(depth+2)) + (yCtb*(LCU_WIDTH>>(depth+2)))*encoder->in.width/2)];
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for(y = 0; y < LCU_WIDTH>>depth; y++)
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{
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for(x = 0; x < 32; x++)
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for(x = 0; x < LCU_WIDTH>>depth; x++)
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{
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bitstream_put(cabac.stream, base[x+y*encoder->in.width], 8);
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}
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}
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//Cb
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for(y = 0; y < 16; y++)
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for(y = 0; y < LCU_WIDTH>>(depth+1); y++)
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{
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for(x = 0; x < 16; x++)
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for(x = 0; x < LCU_WIDTH>>(depth+1); x++)
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{
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bitstream_put(cabac.stream, baseCb[x+y*(encoder->in.width>>1)], 8);
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}
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}
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//Cr
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for(y = 0; y < 16; y++)
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for(y = 0; y < LCU_WIDTH>>(depth+1); y++)
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{
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for(x = 0; x < 16; x++)
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for(x = 0; x < LCU_WIDTH>>(depth+1); x++)
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{
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bitstream_put(cabac.stream, baseCr[x+y*(encoder->in.width>>1)], 8);
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}
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@ -360,9 +392,29 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
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}
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/* end PCM sample */
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cabac_start(&cabac);
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//endif
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} /* end Code IPCM block */
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else
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{
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cabac_encodeBinTrm(&cabac, 0); /* IPCMFlag == 0 */
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cabac.ctx = &g_IntraModeSCModel;
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CABAC_BIN(&cabac,0,"IntraPred");
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cabac.ctx = &g_ChromaPredSCModel[0];
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CABAC_BIN(&cabac,0,"IntraPredChroma");
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cabac.ctx = &g_TransSubdivSCModel[1]; /* //uiLog2TransformBlockSize */
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CABAC_BIN(&cabac,0,"TransformSubdivFlag");
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/* Transform tree */
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/* end Transform tree */
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}
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//endif
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/* end prediction unit */
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//cabac_encodeBin(&cabac, 0); //prev_intra_luma_pred_flag
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//cabac_encodeBin(&cabac, 1); //rem_intra_luma_pred_mode
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@ -10,8 +10,8 @@
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Structures for encoding
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*/
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#ifndef _ENCODER_H
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#define _ENCODER_H
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#ifndef __ENCODER_H
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#define __ENCODER_H
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#include "picture.h"
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#include "bitstream.h"
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@ -62,12 +62,28 @@ void encode_slice_header(encoder_control* encoder);
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void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, uint8_t depth);
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static const uint8_t
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INIT_SPLIT_FLAG[3][3] =
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{
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{ 107, 139, 126, },
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{ 107, 139, 126, },
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{ 139, 141, 157, }
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};
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static const uint8_t INIT_SPLIT_FLAG[3][3] =
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{ { 107, 139, 126 }, { 107, 139, 126 }, { 139, 141, 157 } };
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static const uint8_t INIT_INTRA_PRED_MODE[3] = { 183,154,184 };
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static const uint8_t INIT_CHROMA_PRED_MODE[3][2] = { { 152, 139 }, { 152, 139 }, { 63, 139 } };
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#define CNU 154
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static const uint8_t INIT_TRANS_SUBDIV_FLAG[3][4] =
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{
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{ CNU, 153, 138, 138 },
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{ CNU, 124, 138, 94 },
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{ CNU, 224, 167, 122 }
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};
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static const uint8_t INIT_QT_CBF[3][8] =
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{
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{ 153, 111, CNU, CNU, CNU, 149, 92, 167 },
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{ 153, 111, CNU, CNU, CNU, 149, 107, 167 },
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{ 111, 141, CNU, CNU, CNU, 94, 138, 182 }
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};
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#endif
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13
src/intra.c
Normal file
13
src/intra.c
Normal file
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@ -0,0 +1,13 @@
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/**
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* HEVC Encoder
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* - Marko Viitanen ( fador at iki.fi ), Tampere University of Technology, Department of Computer Systems.
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*/
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/*! \file intra.c
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\brief Intra functions
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\author Marko Viitanen
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\date 2012-06
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Intra functions
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*/
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17
src/intra.h
Normal file
17
src/intra.h
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
/**
|
||||
* HEVC Encoder
|
||||
* - Marko Viitanen ( fador at iki.fi ), Tampere University of Technology, Department of Computer Systems.
|
||||
*/
|
||||
|
||||
/*! \file intra.h
|
||||
\brief Intra functions
|
||||
\author Marko Viitanen
|
||||
\date 2012-06
|
||||
|
||||
Intra functions
|
||||
*/
|
||||
#ifndef __INTRA_H
|
||||
#define __INTRA_H
|
||||
|
||||
|
||||
#endif
|
||||
17
src/nal.c
17
src/nal.c
|
|
@ -30,21 +30,22 @@ void nal_write(FILE* output, uint8_t* buffer, uint32_t buffer_len, uint8_t nal_r
|
|||
uint8_t byte;
|
||||
uint32_t i;
|
||||
uint8_t zerocount=0;
|
||||
|
||||
/* Some useful constants */
|
||||
const uint8_t emulation_prevention_three_byte = 0x03;
|
||||
const uint8_t start_code_prefix_one_3bytes = 0x01;
|
||||
const uint8_t zero = 0x00;
|
||||
|
||||
//start_code_prefix_one_3bytes
|
||||
//fwrite(&zero, 1, 1, output);
|
||||
/*start_code_prefix_one_3bytes */
|
||||
fwrite(&zero, 1, 1, output);
|
||||
fwrite(&zero, 1, 1, output);
|
||||
fwrite(&start_code_prefix_one_3bytes, 1, 1, output);
|
||||
|
||||
//forbidden_zero_flag(1) + nal_ref_flag(1) + nal_unit_type(6)
|
||||
/* forbidden_zero_flag(1) + nal_ref_flag(1) + nal_unit_type(6) */
|
||||
byte = nal_ref<<6 | nal_type;
|
||||
fwrite(&byte, 1, 1, output);
|
||||
|
||||
//Temporal_id(3) + reserved_one_5bits(5)
|
||||
/* Temporal_id(3) + reserved_one_5bits(5) */
|
||||
byte = temporal_id << 5 | 1;
|
||||
fwrite(&byte, 1, 1, output);
|
||||
|
||||
|
|
@ -58,16 +59,22 @@ void nal_write(FILE* output, uint8_t* buffer, uint32_t buffer_len, uint8_t nal_r
|
|||
zerocount = 0;
|
||||
}
|
||||
if(buffer[i] == 0)
|
||||
{
|
||||
zerocount++;
|
||||
}
|
||||
else
|
||||
{
|
||||
zerocount = 0;
|
||||
}
|
||||
|
||||
/* Write the actual data */
|
||||
fwrite(&buffer[i], 1, 1, output);
|
||||
}
|
||||
|
||||
//If last byte was 0, add emulation_prevention_three_byte
|
||||
/* If last byte was 0, add emulation_prevention_three_byte */
|
||||
if(buffer[buffer_len-1] == 0)
|
||||
{
|
||||
fwrite(&emulation_prevention_three_byte, 1, 1, output);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -20,7 +20,7 @@
|
|||
* @{
|
||||
*/
|
||||
|
||||
enum { CU_NOTSET = 0, CU_SKIP, CU_SPLIT, CU_INTRA, CU_INTER};
|
||||
enum { CU_NOTSET = 0,CU_PCM, CU_SKIP, CU_SPLIT, CU_INTRA, CU_INTER };
|
||||
|
||||
#define GET_SPLITDATA(CU) ((CU)->split)
|
||||
#define SET_SPLITDATA(CU,flag) { (CU)->split=(flag); }
|
||||
|
|
@ -53,6 +53,11 @@ typedef struct
|
|||
uint8_t* yData; /*!< \brief Pointer to Y-data */
|
||||
uint8_t* uData; /*!< \brief Pointer to U-data */
|
||||
uint8_t* vData; /*!< \brief Pointer to V-data */
|
||||
|
||||
uint8_t* yRecData; /*!< \brief Pointer to reconstructed Y-data */
|
||||
uint8_t* uRecData; /*!< \brief Pointer to reconstructed U-data */
|
||||
uint8_t* vRecData; /*!< \brief Pointer to reconstructed V-data */
|
||||
|
||||
int width; /*!< \brief Picture width */
|
||||
int height; /*!< \brief Picture height */
|
||||
uint8_t referenced; /*!< \brief Is this picture referenced */
|
||||
|
|
|
|||
291
src/transform.c
Normal file
291
src/transform.c
Normal file
|
|
@ -0,0 +1,291 @@
|
|||
/**
|
||||
* HEVC Encoder
|
||||
* - Marko Viitanen ( fador at iki.fi ), Tampere University of Technology, Department of Computer Systems.
|
||||
*/
|
||||
|
||||
/*! \file transform.c
|
||||
\brief Transform functions
|
||||
\author Marko Viitanen
|
||||
\date 2012-06
|
||||
|
||||
Transform functions
|
||||
*/
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include "global.h"
|
||||
|
||||
|
||||
const int16_t g_aiT4[4][4] =
|
||||
{
|
||||
{ 64, 64, 64, 64},
|
||||
{ 83, 36,-36,-83},
|
||||
{ 64,-64,-64, 64},
|
||||
{ 36,-83, 83,-36}
|
||||
};
|
||||
|
||||
const int16_t g_aiT8[8][8] =
|
||||
{
|
||||
{ 64, 64, 64, 64, 64, 64, 64, 64},
|
||||
{ 89, 75, 50, 18,-18,-50,-75,-89},
|
||||
{ 83, 36,-36,-83,-83,-36, 36, 83},
|
||||
{ 75,-18,-89,-50, 50, 89, 18,-75},
|
||||
{ 64,-64,-64, 64, 64,-64,-64, 64},
|
||||
{ 50,-89, 18, 75,-75,-18, 89,-50},
|
||||
{ 36,-83, 83,-36,-36, 83,-83, 36},
|
||||
{ 18,-50, 75,-89, 89,-75, 50,-18}
|
||||
};
|
||||
|
||||
const int16_t g_aiT16[16][16] =
|
||||
{
|
||||
{ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64},
|
||||
{ 90, 87, 80, 70, 57, 43, 25, 9, -9,-25,-43,-57,-70,-80,-87,-90},
|
||||
{ 89, 75, 50, 18,-18,-50,-75,-89,-89,-75,-50,-18, 18, 50, 75, 89},
|
||||
{ 87, 57, 9,-43,-80,-90,-70,-25, 25, 70, 90, 80, 43, -9,-57,-87},
|
||||
{ 83, 36,-36,-83,-83,-36, 36, 83, 83, 36,-36,-83,-83,-36, 36, 83},
|
||||
{ 80, 9,-70,-87,-25, 57, 90, 43,-43,-90,-57, 25, 87, 70, -9,-80},
|
||||
{ 75,-18,-89,-50, 50, 89, 18,-75,-75, 18, 89, 50,-50,-89,-18, 75},
|
||||
{ 70,-43,-87, 9, 90, 25,-80,-57, 57, 80,-25,-90, -9, 87, 43,-70},
|
||||
{ 64,-64,-64, 64, 64,-64,-64, 64, 64,-64,-64, 64, 64,-64,-64, 64},
|
||||
{ 57,-80,-25, 90, -9,-87, 43, 70,-70,-43, 87, 9,-90, 25, 80,-57},
|
||||
{ 50,-89, 18, 75,-75,-18, 89,-50,-50, 89,-18,-75, 75, 18,-89, 50},
|
||||
{ 43,-90, 57, 25,-87, 70, 9,-80, 80, -9,-70, 87,-25,-57, 90,-43},
|
||||
{ 36,-83, 83,-36,-36, 83,-83, 36, 36,-83, 83,-36,-36, 83,-83, 36},
|
||||
{ 25,-70, 90,-80, 43, 9,-57, 87,-87, 57, -9,-43, 80,-90, 70,-25},
|
||||
{ 18,-50, 75,-89, 89,-75, 50,-18,-18, 50,-75, 89,-89, 75,-50, 18},
|
||||
{ 9,-25, 43,-57, 70,-80, 87,-90, 90,-87, 80,-70, 57,-43, 25, -9}
|
||||
};
|
||||
|
||||
const int16_t g_aiT32[32][32] =
|
||||
{
|
||||
{ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64},
|
||||
{ 90, 90, 88, 85, 82, 78, 73, 67, 61, 54, 46, 38, 31, 22, 13, 4, -4,-13,-22,-31,-38,-46,-54,-61,-67,-73,-78,-82,-85,-88,-90,-90},
|
||||
{ 90, 87, 80, 70, 57, 43, 25, 9, -9,-25,-43,-57,-70,-80,-87,-90,-90,-87,-80,-70,-57,-43,-25, -9, 9, 25, 43, 57, 70, 80, 87, 90},
|
||||
{ 90, 82, 67, 46, 22, -4,-31,-54,-73,-85,-90,-88,-78,-61,-38,-13, 13, 38, 61, 78, 88, 90, 85, 73, 54, 31, 4,-22,-46,-67,-82,-90},
|
||||
{ 89, 75, 50, 18,-18,-50,-75,-89,-89,-75,-50,-18, 18, 50, 75, 89, 89, 75, 50, 18,-18,-50,-75,-89,-89,-75,-50,-18, 18, 50, 75, 89},
|
||||
{ 88, 67, 31,-13,-54,-82,-90,-78,-46, -4, 38, 73, 90, 85, 61, 22,-22,-61,-85,-90,-73,-38, 4, 46, 78, 90, 82, 54, 13,-31,-67,-88},
|
||||
{ 87, 57, 9,-43,-80,-90,-70,-25, 25, 70, 90, 80, 43, -9,-57,-87,-87,-57, -9, 43, 80, 90, 70, 25,-25,-70,-90,-80,-43, 9, 57, 87},
|
||||
{ 85, 46,-13,-67,-90,-73,-22, 38, 82, 88, 54, -4,-61,-90,-78,-31, 31, 78, 90, 61, 4,-54,-88,-82,-38, 22, 73, 90, 67, 13,-46,-85},
|
||||
{ 83, 36,-36,-83,-83,-36, 36, 83, 83, 36,-36,-83,-83,-36, 36, 83, 83, 36,-36,-83,-83,-36, 36, 83, 83, 36,-36,-83,-83,-36, 36, 83},
|
||||
{ 82, 22,-54,-90,-61, 13, 78, 85, 31,-46,-90,-67, 4, 73, 88, 38,-38,-88,-73, -4, 67, 90, 46,-31,-85,-78,-13, 61, 90, 54,-22,-82},
|
||||
{ 80, 9,-70,-87,-25, 57, 90, 43,-43,-90,-57, 25, 87, 70, -9,-80,-80, -9, 70, 87, 25,-57,-90,-43, 43, 90, 57,-25,-87,-70, 9, 80},
|
||||
{ 78, -4,-82,-73, 13, 85, 67,-22,-88,-61, 31, 90, 54,-38,-90,-46, 46, 90, 38,-54,-90,-31, 61, 88, 22,-67,-85,-13, 73, 82, 4,-78},
|
||||
{ 75,-18,-89,-50, 50, 89, 18,-75,-75, 18, 89, 50,-50,-89,-18, 75, 75,-18,-89,-50, 50, 89, 18,-75,-75, 18, 89, 50,-50,-89,-18, 75},
|
||||
{ 73,-31,-90,-22, 78, 67,-38,-90,-13, 82, 61,-46,-88, -4, 85, 54,-54,-85, 4, 88, 46,-61,-82, 13, 90, 38,-67,-78, 22, 90, 31,-73},
|
||||
{ 70,-43,-87, 9, 90, 25,-80,-57, 57, 80,-25,-90, -9, 87, 43,-70,-70, 43, 87, -9,-90,-25, 80, 57,-57,-80, 25, 90, 9,-87,-43, 70},
|
||||
{ 67,-54,-78, 38, 85,-22,-90, 4, 90, 13,-88,-31, 82, 46,-73,-61, 61, 73,-46,-82, 31, 88,-13,-90, -4, 90, 22,-85,-38, 78, 54,-67},
|
||||
{ 64,-64,-64, 64, 64,-64,-64, 64, 64,-64,-64, 64, 64,-64,-64, 64, 64,-64,-64, 64, 64,-64,-64, 64, 64,-64,-64, 64, 64,-64,-64, 64},
|
||||
{ 61,-73,-46, 82, 31,-88,-13, 90, -4,-90, 22, 85,-38,-78, 54, 67,-67,-54, 78, 38,-85,-22, 90, 4,-90, 13, 88,-31,-82, 46, 73,-61},
|
||||
{ 57,-80,-25, 90, -9,-87, 43, 70,-70,-43, 87, 9,-90, 25, 80,-57,-57, 80, 25,-90, 9, 87,-43,-70, 70, 43,-87, -9, 90,-25,-80, 57},
|
||||
{ 54,-85, -4, 88,-46,-61, 82, 13,-90, 38, 67,-78,-22, 90,-31,-73, 73, 31,-90, 22, 78,-67,-38, 90,-13,-82, 61, 46,-88, 4, 85,-54},
|
||||
{ 50,-89, 18, 75,-75,-18, 89,-50,-50, 89,-18,-75, 75, 18,-89, 50, 50,-89, 18, 75,-75,-18, 89,-50,-50, 89,-18,-75, 75, 18,-89, 50},
|
||||
{ 46,-90, 38, 54,-90, 31, 61,-88, 22, 67,-85, 13, 73,-82, 4, 78,-78, -4, 82,-73,-13, 85,-67,-22, 88,-61,-31, 90,-54,-38, 90,-46},
|
||||
{ 43,-90, 57, 25,-87, 70, 9,-80, 80, -9,-70, 87,-25,-57, 90,-43,-43, 90,-57,-25, 87,-70, -9, 80,-80, 9, 70,-87, 25, 57,-90, 43},
|
||||
{ 38,-88, 73, -4,-67, 90,-46,-31, 85,-78, 13, 61,-90, 54, 22,-82, 82,-22,-54, 90,-61,-13, 78,-85, 31, 46,-90, 67, 4,-73, 88,-38},
|
||||
{ 36,-83, 83,-36,-36, 83,-83, 36, 36,-83, 83,-36,-36, 83,-83, 36, 36,-83, 83,-36,-36, 83,-83, 36, 36,-83, 83,-36,-36, 83,-83, 36},
|
||||
{ 31,-78, 90,-61, 4, 54,-88, 82,-38,-22, 73,-90, 67,-13,-46, 85,-85, 46, 13,-67, 90,-73, 22, 38,-82, 88,-54, -4, 61,-90, 78,-31},
|
||||
{ 25,-70, 90,-80, 43, 9,-57, 87,-87, 57, -9,-43, 80,-90, 70,-25,-25, 70,-90, 80,-43, -9, 57,-87, 87,-57, 9, 43,-80, 90,-70, 25},
|
||||
{ 22,-61, 85,-90, 73,-38, -4, 46,-78, 90,-82, 54,-13,-31, 67,-88, 88,-67, 31, 13,-54, 82,-90, 78,-46, 4, 38,-73, 90,-85, 61,-22},
|
||||
{ 18,-50, 75,-89, 89,-75, 50,-18,-18, 50,-75, 89,-89, 75,-50, 18, 18,-50, 75,-89, 89,-75, 50,-18,-18, 50,-75, 89,-89, 75,-50, 18},
|
||||
{ 13,-38, 61,-78, 88,-90, 85,-73, 54,-31, 4, 22,-46, 67,-82, 90,-90, 82,-67, 46,-22, -4, 31,-54, 73,-85, 90,-88, 78,-61, 38,-13},
|
||||
{ 9,-25, 43,-57, 70,-80, 87,-90, 90,-87, 80,-70, 57,-43, 25, -9, -9, 25,-43, 57,-70, 80,-87, 90,-90, 87,-80, 70,-57, 43,-25, 9},
|
||||
{ 4,-13, 22,-31, 38,-46, 54,-61, 67,-73, 78,-82, 85,-88, 90,-90, 90,-90, 88,-85, 82,-78, 73,-67, 61,-54, 46,-38, 31,-22, 13, -4}
|
||||
};
|
||||
|
||||
|
||||
void partialButterfly4(short *src,short *dst,int shift, int line)
|
||||
{
|
||||
int j;
|
||||
int E[2],O[2];
|
||||
int add = 1<<(shift-1);
|
||||
|
||||
for (j=0; j<line; j++)
|
||||
{
|
||||
/* E and O */
|
||||
E[0] = src[0] + src[3];
|
||||
O[0] = src[0] - src[3];
|
||||
E[1] = src[1] + src[2];
|
||||
O[1] = src[1] - src[2];
|
||||
|
||||
dst[0] = (g_aiT4[0][0]*E[0] + g_aiT4[0][1]*E[1] + add)>>shift;
|
||||
dst[2*line] = (g_aiT4[2][0]*E[0] + g_aiT4[2][1]*E[1] + add)>>shift;
|
||||
dst[line] = (g_aiT4[1][0]*O[0] + g_aiT4[1][1]*O[1] + add)>>shift;
|
||||
dst[3*line] = (g_aiT4[3][0]*O[0] + g_aiT4[3][1]*O[1] + add)>>shift;
|
||||
|
||||
src += 4;
|
||||
dst ++;
|
||||
}
|
||||
}
|
||||
|
||||
// Fast DST Algorithm. Full matrix multiplication for DST and Fast DST algorithm
|
||||
// give identical results
|
||||
void fastForwardDst(short *block,short *coeff,int shift) // input block, output coeff
|
||||
{
|
||||
int i, c[4];
|
||||
int rnd_factor = 1<<(shift-1);
|
||||
for (i=0; i<4; i++)
|
||||
{
|
||||
// Intermediate Variables
|
||||
c[0] = block[4*i+0] + block[4*i+3];
|
||||
c[1] = block[4*i+1] + block[4*i+3];
|
||||
c[2] = block[4*i+0] - block[4*i+1];
|
||||
c[3] = 74* block[4*i+2];
|
||||
|
||||
coeff[ i] = ( 29 * c[0] + 55 * c[1] + c[3] + rnd_factor ) >> shift;
|
||||
coeff[ 4+i] = ( 74 * (block[4*i+0]+ block[4*i+1] - block[4*i+3]) + rnd_factor ) >> shift;
|
||||
coeff[ 8+i] = ( 29 * c[2] + 55 * c[0] - c[3] + rnd_factor ) >> shift;
|
||||
coeff[12+i] = ( 55 * c[2] - 29 * c[1] + c[3] + rnd_factor ) >> shift;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
void partialButterfly8(short *src,short *dst,int shift, int line)
|
||||
{
|
||||
int j,k;
|
||||
int E[4],O[4];
|
||||
int EE[2],EO[2];
|
||||
int add = 1<<(shift-1);
|
||||
|
||||
for (j=0; j<line; j++)
|
||||
{
|
||||
/* E and O*/
|
||||
for (k=0;k<4;k++)
|
||||
{
|
||||
E[k] = src[k] + src[7-k];
|
||||
O[k] = src[k] - src[7-k];
|
||||
}
|
||||
/* EE and EO */
|
||||
EE[0] = E[0] + E[3];
|
||||
EO[0] = E[0] - E[3];
|
||||
EE[1] = E[1] + E[2];
|
||||
EO[1] = E[1] - E[2];
|
||||
|
||||
dst[0] = (g_aiT8[0][0]*EE[0] + g_aiT8[0][1]*EE[1] + add)>>shift;
|
||||
dst[4*line] = (g_aiT8[4][0]*EE[0] + g_aiT8[4][1]*EE[1] + add)>>shift;
|
||||
dst[2*line] = (g_aiT8[2][0]*EO[0] + g_aiT8[2][1]*EO[1] + add)>>shift;
|
||||
dst[6*line] = (g_aiT8[6][0]*EO[0] + g_aiT8[6][1]*EO[1] + add)>>shift;
|
||||
|
||||
dst[line] = (g_aiT8[1][0]*O[0] + g_aiT8[1][1]*O[1] + g_aiT8[1][2]*O[2] + g_aiT8[1][3]*O[3] + add)>>shift;
|
||||
dst[3*line] = (g_aiT8[3][0]*O[0] + g_aiT8[3][1]*O[1] + g_aiT8[3][2]*O[2] + g_aiT8[3][3]*O[3] + add)>>shift;
|
||||
dst[5*line] = (g_aiT8[5][0]*O[0] + g_aiT8[5][1]*O[1] + g_aiT8[5][2]*O[2] + g_aiT8[5][3]*O[3] + add)>>shift;
|
||||
dst[7*line] = (g_aiT8[7][0]*O[0] + g_aiT8[7][1]*O[1] + g_aiT8[7][2]*O[2] + g_aiT8[7][3]*O[3] + add)>>shift;
|
||||
|
||||
src += 8;
|
||||
dst ++;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
void partialButterfly16(short *src,short *dst,int shift, int line)
|
||||
{
|
||||
int j,k;
|
||||
int E[8],O[8];
|
||||
int EE[4],EO[4];
|
||||
int EEE[2],EEO[2];
|
||||
int add = 1<<(shift-1);
|
||||
|
||||
for (j=0; j<line; j++)
|
||||
{
|
||||
/* E and O*/
|
||||
for (k=0;k<8;k++)
|
||||
{
|
||||
E[k] = src[k] + src[15-k];
|
||||
O[k] = src[k] - src[15-k];
|
||||
}
|
||||
/* EE and EO */
|
||||
for (k=0;k<4;k++)
|
||||
{
|
||||
EE[k] = E[k] + E[7-k];
|
||||
EO[k] = E[k] - E[7-k];
|
||||
}
|
||||
/* EEE and EEO */
|
||||
EEE[0] = EE[0] + EE[3];
|
||||
EEO[0] = EE[0] - EE[3];
|
||||
EEE[1] = EE[1] + EE[2];
|
||||
EEO[1] = EE[1] - EE[2];
|
||||
|
||||
dst[ 0 ] = (g_aiT16[ 0][0]*EEE[0] + g_aiT16[ 0][1]*EEE[1] + add)>>shift;
|
||||
dst[ 8*line ] = (g_aiT16[ 8][0]*EEE[0] + g_aiT16[ 8][1]*EEE[1] + add)>>shift;
|
||||
dst[ 4*line ] = (g_aiT16[ 4][0]*EEO[0] + g_aiT16[ 4][1]*EEO[1] + add)>>shift;
|
||||
dst[ 12*line] = (g_aiT16[12][0]*EEO[0] + g_aiT16[12][1]*EEO[1] + add)>>shift;
|
||||
|
||||
for (k=2;k<16;k+=4)
|
||||
{
|
||||
dst[ k*line ] = (g_aiT16[k][0]*EO[0] + g_aiT16[k][1]*EO[1] + g_aiT16[k][2]*EO[2] + g_aiT16[k][3]*EO[3] + add)>>shift;
|
||||
}
|
||||
|
||||
for (k=1;k<16;k+=2)
|
||||
{
|
||||
dst[ k*line ] = (g_aiT16[k][0]*O[0] + g_aiT16[k][1]*O[1] + g_aiT16[k][2]*O[2] + g_aiT16[k][3]*O[3] +
|
||||
g_aiT16[k][4]*O[4] + g_aiT16[k][5]*O[5] + g_aiT16[k][6]*O[6] + g_aiT16[k][7]*O[7] + add)>>shift;
|
||||
}
|
||||
|
||||
src += 16;
|
||||
dst ++;
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
void partialButterfly32(short *src,short *dst,int shift, int line)
|
||||
{
|
||||
int j,k;
|
||||
int E[16],O[16];
|
||||
int EE[8],EO[8];
|
||||
int EEE[4],EEO[4];
|
||||
int EEEE[2],EEEO[2];
|
||||
int add = 1<<(shift-1);
|
||||
|
||||
for (j=0; j<line; j++)
|
||||
{
|
||||
/* E and O*/
|
||||
for (k=0;k<16;k++)
|
||||
{
|
||||
E[k] = src[k] + src[31-k];
|
||||
O[k] = src[k] - src[31-k];
|
||||
}
|
||||
/* EE and EO */
|
||||
for (k=0;k<8;k++)
|
||||
{
|
||||
EE[k] = E[k] + E[15-k];
|
||||
EO[k] = E[k] - E[15-k];
|
||||
}
|
||||
/* EEE and EEO */
|
||||
for (k=0;k<4;k++)
|
||||
{
|
||||
EEE[k] = EE[k] + EE[7-k];
|
||||
EEO[k] = EE[k] - EE[7-k];
|
||||
}
|
||||
/* EEEE and EEEO */
|
||||
EEEE[0] = EEE[0] + EEE[3];
|
||||
EEEO[0] = EEE[0] - EEE[3];
|
||||
EEEE[1] = EEE[1] + EEE[2];
|
||||
EEEO[1] = EEE[1] - EEE[2];
|
||||
|
||||
dst[ 0 ] = (g_aiT32[ 0][0]*EEEE[0] + g_aiT32[ 0][1]*EEEE[1] + add)>>shift;
|
||||
dst[ 16*line ] = (g_aiT32[16][0]*EEEE[0] + g_aiT32[16][1]*EEEE[1] + add)>>shift;
|
||||
dst[ 8*line ] = (g_aiT32[ 8][0]*EEEO[0] + g_aiT32[ 8][1]*EEEO[1] + add)>>shift;
|
||||
dst[ 24*line ] = (g_aiT32[24][0]*EEEO[0] + g_aiT32[24][1]*EEEO[1] + add)>>shift;
|
||||
for (k=4;k<32;k+=8)
|
||||
{
|
||||
dst[ k*line ] = (g_aiT32[k][0]*EEO[0] + g_aiT32[k][1]*EEO[1] + g_aiT32[k][2]*EEO[2] + g_aiT32[k][3]*EEO[3] + add)>>shift;
|
||||
}
|
||||
for (k=2;k<32;k+=4)
|
||||
{
|
||||
dst[ k*line ] = (g_aiT32[k][0]*EO[0] + g_aiT32[k][1]*EO[1] + g_aiT32[k][2]*EO[2] + g_aiT32[k][3]*EO[3] +
|
||||
g_aiT32[k][4]*EO[4] + g_aiT32[k][5]*EO[5] + g_aiT32[k][6]*EO[6] + g_aiT32[k][7]*EO[7] + add)>>shift;
|
||||
}
|
||||
for (k=1;k<32;k+=2)
|
||||
{
|
||||
dst[ k*line ] = (g_aiT32[k][ 0]*O[ 0] + g_aiT32[k][ 1]*O[ 1] + g_aiT32[k][ 2]*O[ 2] + g_aiT32[k][ 3]*O[ 3] +
|
||||
g_aiT32[k][ 4]*O[ 4] + g_aiT32[k][ 5]*O[ 5] + g_aiT32[k][ 6]*O[ 6] + g_aiT32[k][ 7]*O[ 7] +
|
||||
g_aiT32[k][ 8]*O[ 8] + g_aiT32[k][ 9]*O[ 9] + g_aiT32[k][10]*O[10] + g_aiT32[k][11]*O[11] +
|
||||
g_aiT32[k][12]*O[12] + g_aiT32[k][13]*O[13] + g_aiT32[k][14]*O[14] + g_aiT32[k][15]*O[15] + add)>>shift;
|
||||
}
|
||||
src += 32;
|
||||
dst ++;
|
||||
}
|
||||
}
|
||||
17
src/transform.h
Normal file
17
src/transform.h
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
/**
|
||||
* HEVC Encoder
|
||||
* - Marko Viitanen ( fador at iki.fi ), Tampere University of Technology, Department of Computer Systems.
|
||||
*/
|
||||
|
||||
/*! \file transform.h
|
||||
\brief Transform functions
|
||||
\author Marko Viitanen
|
||||
\date 2012-06
|
||||
|
||||
Transform functions
|
||||
*/
|
||||
#ifndef __TRANSFORM_H
|
||||
#define __TRANSFORM_H
|
||||
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue