[x265] [PATCH] pull TEncTop code into Encoder class in encoder.cpp, encoder.h

Steve Borho steve at borho.org
Wed Oct 9 07:58:09 CEST 2013


# HG changeset patch
# User Steve Borho <steve at borho.org>
# Date 1381297950 18000
#      Wed Oct 09 00:52:30 2013 -0500
# Node ID 697ec7e3b1df113f5e0a69ae86e479bf9edb2678
# Parent  fc7fbdd18bc0d6d7f98180332e065d83c054fe02
pull TEncTop code into Encoder class in encoder.cpp, encoder.h

The TEncTop in our repo bears little resemblance to the original HM class, so I
think it is applicable to move this code into one of our files where it makes
the most sense.  Some methods were renamed to our naming style in the process.

diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/Lib/TLibEncoder/TEncCavlc.h
--- a/source/Lib/TLibEncoder/TEncCavlc.h	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/Lib/TLibEncoder/TEncCavlc.h	Wed Oct 09 00:52:30 2013 -0500
@@ -50,8 +50,6 @@
 namespace x265 {
 // private namespace
 
-class TEncTop;
-
 // ====================================================================================================================
 // Class definition
 // ====================================================================================================================
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/Lib/TLibEncoder/TEncCu.cpp
--- a/source/Lib/TLibEncoder/TEncCu.cpp	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/Lib/TLibEncoder/TEncCu.cpp	Wed Oct 09 00:52:30 2013 -0500
@@ -36,18 +36,19 @@
 */
 
 #include <stdio.h>
-#include "TEncTop.h"
 #include "TEncCu.h"
 #include "PPA/ppa.h"
 #include "primitives.h"
+#include "encoder.h"
 #include "common.h"
 
 #include <cmath>
 #include <algorithm>
-using namespace std;
 
 using namespace x265;
 
+using namespace std;
+
 //! \ingroup TLibEncoder
 //! \{
 
@@ -369,7 +370,7 @@
 
 /** \param    pcEncTop      pointer of encoder class
  */
-void TEncCu::init(TEncTop* top)
+void TEncCu::init(Encoder* top)
 {
     m_cfg = top;
 }
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/Lib/TLibEncoder/TEncCu.h
--- a/source/Lib/TLibEncoder/TEncCu.h	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/Lib/TLibEncoder/TEncCu.h	Wed Oct 09 00:52:30 2013 -0500
@@ -55,7 +55,7 @@
 namespace x265 {
 // private namespace
 
-class TEncTop;
+class Encoder;
 class TEncSbac;
 class TEncCavlc;
 
@@ -115,7 +115,7 @@
 
     TEncCu();
 
-    void init(TEncTop* top);
+    void init(Encoder* top);
     void create(UChar totalDepth, UInt maxWidth);
     void destroy();
     void compressCU(TComDataCU* cu);
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/Lib/TLibEncoder/TEncSbac.cpp
--- a/source/Lib/TLibEncoder/TEncSbac.cpp	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/Lib/TLibEncoder/TEncSbac.cpp	Wed Oct 09 00:52:30 2013 -0500
@@ -35,7 +35,6 @@
     \brief    SBAC encoder class
 */
 
-#include "TEncTop.h"
 #include "TEncSbac.h"
 
 #include <map>
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/Lib/TLibEncoder/TEncSbac.h
--- a/source/Lib/TLibEncoder/TEncSbac.h	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/Lib/TLibEncoder/TEncSbac.h	Wed Oct 09 00:52:30 2013 -0500
@@ -50,8 +50,6 @@
 namespace x265 {
 // private namespace
 
-class TEncTop;
-
 //! \ingroup TLibEncoder
 //! \{
 
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/Lib/TLibEncoder/TEncTop.cpp
--- a/source/Lib/TLibEncoder/TEncTop.cpp	Wed Oct 09 00:00:10 2013 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,863 +0,0 @@
-/* The copyright in this software is being made available under the BSD
- * License, included below. This software may be subject to other third party
- * and contributor rights, including patent rights, and no such rights are
- * granted under this license.
- *
- * Copyright (c) 2010-2013, ITU/ISO/IEC
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  * Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
- *    be used to endorse or promote products derived from this software without
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/** \file     TEncTop.cpp
-    \brief    encoder class
-*/
-
-#include "TLibCommon/CommonDef.h"
-#include "TLibCommon/TComPic.h"
-#include "TLibCommon/TComRom.h"
-#include "primitives.h"
-#include "common.h"
-
-#include "TEncTop.h"
-#include "NALwrite.h"
-
-#include "slicetype.h"
-#include "frameencoder.h"
-#include "ratecontrol.h"
-#include "dpb.h"
-
-#include <cstdlib>
-#include <math.h> // log10
-
-using namespace x265;
-
-//! \ingroup TLibEncoder
-//! \{
-
-// ====================================================================================================================
-// Constructor / destructor / create / destroy
-// ====================================================================================================================
-
-TEncTop::TEncTop()
-{
-    m_pocLast = -1;
-    m_maxRefPicNum = 0;
-    m_curEncoder = 0;
-    m_lookahead = NULL;
-    m_frameEncoder = NULL;
-    m_rateControl = NULL;
-    m_dpb = NULL;
-    m_globalSsim = 0;
-
-#if ENC_DEC_TRACE
-    g_hTrace = fopen("TraceEnc.txt", "wb");
-    g_bJustDoIt = g_bEncDecTraceDisable;
-    g_nSymbolCounter = 0;
-#endif
-}
-
-TEncTop::~TEncTop()
-{
-#if ENC_DEC_TRACE
-    fclose(g_hTrace);
-#endif
-}
-
-void TEncTop::create()
-{
-    if (!primitives.sad[0])
-    {
-        // this should be an impossible condition when using our public API, and indicates a serious bug.
-        x265_log(&param, X265_LOG_ERROR, "Primitives must be initialized before encoder is created\n");
-        abort();
-    }
-
-    m_frameEncoder = new FrameEncoder[param.frameNumThreads];
-    if (m_frameEncoder)
-    {
-        for (int i = 0; i < param.frameNumThreads; i++)
-        {
-            m_frameEncoder[i].setThreadPool(m_threadPool);
-        }
-    }
-    m_lookahead = new Lookahead(this);
-    m_dpb = new DPB(this);
-    m_rateControl = new RateControl(&param);
-}
-
-void TEncTop::destroy()
-{
-    if (m_frameEncoder)
-    {
-        for (int i = 0; i < param.frameNumThreads; i++)
-        {
-            // Ensure frame encoder is idle before destroying it
-            m_frameEncoder[i].getEncodedPicture(NULL);
-            m_frameEncoder[i].destroy();
-        }
-
-        delete [] m_frameEncoder;
-    }
-
-    while (!m_freeList.empty())
-    {
-        TComPic* pic = m_freeList.popFront();
-        pic->destroy(param.bframes);
-        delete pic;
-    }
-
-    if (m_lookahead)
-    {
-        m_lookahead->destroy();
-        delete m_lookahead;
-    }
-
-    delete m_dpb;
-    delete m_rateControl;
-
-    // thread pool release should always happen last
-    if (m_threadPool)
-        m_threadPool->release();
-}
-
-void TEncTop::init()
-{
-    if (m_frameEncoder)
-    {
-        int numRows = (param.sourceHeight + g_maxCUHeight - 1) / g_maxCUHeight;
-        for (int i = 0; i < param.frameNumThreads; i++)
-        {
-            m_frameEncoder[i].init(this, numRows);
-        }
-    }
-}
-
-int TEncTop::getStreamHeaders(NALUnitEBSP **nalunits)
-{
-    return m_frameEncoder->getStreamHeaders(nalunits);
-}
-
-/**
- \param   flush               force encoder to encode a frame
- \param   pic_in              input original YUV picture or NULL
- \param   pic_out             pointer to reconstructed picture struct
- \param   nalunits            output NAL packets
- \retval                      number of encoded pictures
- */
-int TEncTop::encode(bool flush, const x265_picture_t* pic_in, x265_picture_t *pic_out, NALUnitEBSP **nalunits)
-{
-    if (pic_in)
-    {
-        TComPic *pic;
-        if (m_freeList.empty())
-        {
-            pic = new TComPic;
-            pic->create(param.sourceWidth, param.sourceHeight, g_maxCUWidth, g_maxCUHeight, g_maxCUDepth,
-                        getConformanceWindow(), getDefaultDisplayWindow(), param.bframes);
-            if (param.bEnableSAO)
-            {
-                // TODO: these should be allocated on demand within the encoder
-                // NOTE: the SAO pointer from m_frameEncoder for read m_maxSplitLevel, etc, we can remove it later
-                pic->getPicSym()->allocSaoParam(m_frameEncoder->getSAO());
-            }
-        }
-        else
-            pic = m_freeList.popBack();
-
-        /* Copy input picture into a TComPic, send to lookahead */
-        pic->getSlice()->setPOC(++m_pocLast);
-        pic->getPicYuvOrg()->copyFromPicture(*pic_in);
-        pic->m_userData = pic_in->userData;
-
-        // TEncTop holds a reference count until collecting stats
-        ATOMIC_INC(&pic->m_countRefEncoders);
-        m_lookahead->addPicture(pic, pic_in->sliceType);
-    }
-
-    if (flush)
-        m_lookahead->flush();
-
-    FrameEncoder *curEncoder = &m_frameEncoder[m_curEncoder];
-    m_curEncoder = (m_curEncoder + 1) % param.frameNumThreads;
-    int ret = 0;
-
-    // getEncodedPicture() should block until the FrameEncoder has completed
-    // encoding the frame.  This is how back-pressure through the API is
-    // accomplished when the encoder is full.
-    TComPic *out = curEncoder->getEncodedPicture(nalunits);
-
-    if (!out && flush)
-    {
-        // if the current encoder did not return an output picture and we are
-        // flushing, check all the other encoders in logical order until
-        // we find an output picture or have cycled around.  We cannot return
-        // 0 until the entire stream is flushed
-        // (can only be an issue when --frames < --frame-threads)
-        int flushed = m_curEncoder;
-        do
-        {
-            curEncoder = &m_frameEncoder[m_curEncoder];
-            m_curEncoder = (m_curEncoder + 1) % param.frameNumThreads;
-            out = curEncoder->getEncodedPicture(nalunits);
-        }
-        while (!out && flushed != m_curEncoder);
-    }
-    if (out)
-    {
-        if (pic_out)
-        {
-            TComPicYuv *recpic = out->getPicYuvRec();
-            pic_out->poc = out->getSlice()->getPOC();
-            pic_out->bitDepth = sizeof(Pel) * 8;
-            pic_out->userData = out->m_userData;
-            switch (out->getSlice()->getSliceType())
-            {
-            case I_SLICE:
-                pic_out->sliceType = X265_TYPE_I;
-                break;
-            case P_SLICE:
-                pic_out->sliceType = X265_TYPE_P;
-                break;
-            case B_SLICE:
-                pic_out->sliceType = X265_TYPE_B;
-                break;
-            }
-            pic_out->planes[0] = recpic->getLumaAddr();
-            pic_out->stride[0] = recpic->getStride();
-            pic_out->planes[1] = recpic->getCbAddr();
-            pic_out->stride[1] = recpic->getCStride();
-            pic_out->planes[2] = recpic->getCrAddr();
-            pic_out->stride[2] = recpic->getCStride();
-        }
-
-        double bits = calculateHashAndPSNR(out, nalunits);
-        // Allow this frame to be recycled if no frame encoders are using it for reference
-        ATOMIC_DEC(&out->m_countRefEncoders);
-
-        m_rateControl->rateControlEnd(bits, &(curEncoder->m_rce));
-
-        m_dpb->recycleUnreferenced(m_freeList);
-
-        ret = 1;
-    }
-
-    if (!m_lookahead->outputQueue.empty())
-    {
-        // pop a single frame from decided list, then provide to frame encoder
-        // curEncoder is guaranteed to be idle at this point
-        TComPic *fenc = m_lookahead->outputQueue.popFront();
-
-        // Initialize slice for encoding with this FrameEncoder
-        curEncoder->initSlice(fenc);
-
-        // determine references, setup RPS, etc
-        m_dpb->prepareEncode(fenc);
-
-        // set slice QP
-        m_rateControl->rateControlStart(fenc, m_lookahead, &(curEncoder->m_rce));
-
-        // Allow FrameEncoder::compressFrame() to start in a worker thread
-        curEncoder->m_enable.trigger();
-    }
-
-    return ret;
-}
-
-double TEncTop::printSummary()
-{
-    double fps = (double)param.frameRate;
-    if (param.logLevel >= X265_LOG_INFO)
-    {
-        m_analyzeI.printOut('i', fps);
-        m_analyzeP.printOut('p', fps);
-        m_analyzeB.printOut('b', fps);
-        m_analyzeAll.printOut('a', fps);
-    }
-
-#if _SUMMARY_OUT_
-    m_analyzeAll.printSummaryOut(fps);
-#endif
-#if _SUMMARY_PIC_
-    m_analyzeI.printSummary('I', fps);
-    m_analyzeP.printSummary('P', fps);
-    m_analyzeB.printSummary('B', fps);
-#endif
-
-    if (m_analyzeAll.getNumPic())
-        return (m_analyzeAll.getPsnrY() * 6 + m_analyzeAll.getPsnrU() + m_analyzeAll.getPsnrV()) / (8 * m_analyzeAll.getNumPic());
-    else
-        return 100.0;
-}
-
-void TEncTop::fetchStats(x265_stats_t *stats)
-{
-    stats->globalPsnrY = m_analyzeAll.getPsnrY();
-    stats->globalPsnrU = m_analyzeAll.getPsnrU();
-    stats->globalPsnrV = m_analyzeAll.getPsnrV();
-    stats->totalNumPics = m_analyzeAll.getNumPic();
-    stats->accBits = m_analyzeAll.getBits();
-    if (stats->totalNumPics > 0)
-    {
-        stats->globalSsim = m_globalSsim / stats->totalNumPics;
-        stats->globalPsnr = (stats->globalPsnrY * 6 + stats->globalPsnrU + stats->globalPsnrV) / (8 * stats->totalNumPics);
-    }
-    else
-    {
-        stats->globalSsim = 0;
-        stats->globalPsnr = 0;
-    }
-}
-
-#define VERBOSE_RATE 0
-#if VERBOSE_RATE
-static const char* nalUnitTypeToString(NalUnitType type)
-{
-    switch (type)
-    {
-    case NAL_UNIT_CODED_SLICE_TRAIL_R:    return "TRAIL_R";
-    case NAL_UNIT_CODED_SLICE_TRAIL_N:    return "TRAIL_N";
-    case NAL_UNIT_CODED_SLICE_TLA_R:      return "TLA_R";
-    case NAL_UNIT_CODED_SLICE_TSA_N:      return "TSA_N";
-    case NAL_UNIT_CODED_SLICE_STSA_R:     return "STSA_R";
-    case NAL_UNIT_CODED_SLICE_STSA_N:     return "STSA_N";
-    case NAL_UNIT_CODED_SLICE_BLA_W_LP:   return "BLA_W_LP";
-    case NAL_UNIT_CODED_SLICE_BLA_W_RADL: return "BLA_W_RADL";
-    case NAL_UNIT_CODED_SLICE_BLA_N_LP:   return "BLA_N_LP";
-    case NAL_UNIT_CODED_SLICE_IDR_W_RADL: return "IDR_W_RADL";
-    case NAL_UNIT_CODED_SLICE_IDR_N_LP:   return "IDR_N_LP";
-    case NAL_UNIT_CODED_SLICE_CRA:        return "CRA";
-    case NAL_UNIT_CODED_SLICE_RADL_R:     return "RADL_R";
-    case NAL_UNIT_CODED_SLICE_RASL_R:     return "RASL_R";
-    case NAL_UNIT_VPS:                    return "VPS";
-    case NAL_UNIT_SPS:                    return "SPS";
-    case NAL_UNIT_PPS:                    return "PPS";
-    case NAL_UNIT_ACCESS_UNIT_DELIMITER:  return "AUD";
-    case NAL_UNIT_EOS:                    return "EOS";
-    case NAL_UNIT_EOB:                    return "EOB";
-    case NAL_UNIT_FILLER_DATA:            return "FILLER";
-    case NAL_UNIT_PREFIX_SEI:             return "SEI";
-    case NAL_UNIT_SUFFIX_SEI:             return "SEI";
-    default:                              return "UNK";
-    }
-}
-
-#endif // if VERBOSE_RATE
-
-// TODO:
-//   1 - as a performance optimization, if we're not reporting PSNR we do not have to measure PSNR
-//       (we do not yet have a switch to disable PSNR reporting)
-//   2 - it would be better to accumulate SSD of each CTU at the end of processCTU() while it is cache-hot
-//       in fact, we almost certainly are already measuring the CTU distortion and not accumulating it
-static UInt64 computeSSD(Pel *fenc, Pel *rec, int stride, int width, int height)
-{
-    UInt64 ssd = 0;
-
-    if ((width | height) & 3)
-    {
-        /* Slow Path */
-        for (int y = 0; y < height; y++)
-        {
-            for (int x = 0; x < width; x++)
-            {
-                int diff = (int)(fenc[x] - rec[x]);
-                ssd += diff * diff;
-            }
-
-            fenc += stride;
-            rec += stride;
-        }
-
-        return ssd;
-    }
-
-    int y = 0;
-    /* Consume Y in chunks of 64 */
-    for (; y + 64 <= height; y += 64)
-    {
-        int x = 0;
-
-        if (!(stride & 31))
-            for (; x + 64 <= width; x += 64)
-            {
-                ssd += primitives.sse_pp[PARTITION_64x64](fenc + x, stride, rec + x, stride);
-            }
-
-        if (!(stride & 15))
-            for (; x + 16 <= width; x += 16)
-            {
-                ssd += primitives.sse_pp[PARTITION_16x64](fenc + x, stride, rec + x, stride);
-            }
-
-        for (; x + 4 <= width; x += 4)
-        {
-            ssd += primitives.sse_pp[PARTITION_4x64](fenc + x, stride, rec + x, stride);
-        }
-
-        fenc += stride * 64;
-        rec += stride * 64;
-    }
-
-    /* Consume Y in chunks of 16 */
-    for (; y + 16 <= height; y += 16)
-    {
-        int x = 0;
-
-        if (!(stride & 31))
-            for (; x + 64 <= width; x += 64)
-            {
-                ssd += primitives.sse_pp[PARTITION_64x16](fenc + x, stride, rec + x, stride);
-            }
-
-        if (!(stride & 15))
-            for (; x + 16 <= width; x += 16)
-            {
-                ssd += primitives.sse_pp[PARTITION_16x16](fenc + x, stride, rec + x, stride);
-            }
-
-        for (; x + 4 <= width; x += 4)
-        {
-            ssd += primitives.sse_pp[PARTITION_4x16](fenc + x, stride, rec + x, stride);
-        }
-
-        fenc += stride * 16;
-        rec += stride * 16;
-    }
-
-    /* Consume Y in chunks of 4 */
-    for (; y + 4 <= height; y += 4)
-    {
-        int x = 0;
-
-        if (!(stride & 31))
-            for (; x + 64 <= width; x += 64)
-            {
-                ssd += primitives.sse_pp[PARTITION_64x4](fenc + x, stride, rec + x, stride);
-            }
-
-        if (!(stride & 15))
-            for (; x + 16 <= width; x += 16)
-            {
-                ssd += primitives.sse_pp[PARTITION_16x4](fenc + x, stride, rec + x, stride);
-            }
-
-        for (; x + 4 <= width; x += 4)
-        {
-            ssd += primitives.sse_pp[PARTITION_4x4](fenc + x, stride, rec + x, stride);
-        }
-
-        fenc += stride * 4;
-        rec += stride * 4;
-    }
-
-    return ssd;
-}
-
-/**
- * Produce an ascii(hex) representation of picture digest.
- *
- * Returns: a statically allocated null-terminated string.  DO NOT FREE.
- */
-static const char*digestToString(const unsigned char digest[3][16], int numChar)
-{
-    const char* hex = "0123456789abcdef";
-    static char string[99];
-    int cnt = 0;
-
-    for (int yuvIdx = 0; yuvIdx < 3; yuvIdx++)
-    {
-        for (int i = 0; i < numChar; i++)
-        {
-            string[cnt++] = hex[digest[yuvIdx][i] >> 4];
-            string[cnt++] = hex[digest[yuvIdx][i] & 0xf];
-        }
-
-        string[cnt++] = ',';
-    }
-
-    string[cnt - 1] = '\0';
-    return string;
-}
-
-/* Returns Number of bits in current encoded pic */
-
-double TEncTop::calculateHashAndPSNR(TComPic* pic, NALUnitEBSP **nalunits)
-{
-    TComPicYuv* recon = pic->getPicYuvRec();
-    TComPicYuv* orig  = pic->getPicYuvOrg();
-
-    //===== calculate PSNR =====
-    int stride = recon->getStride();
-    int width  = recon->getWidth() - getPad(0);
-    int height = recon->getHeight() - getPad(1);
-    int size = width * height;
-
-    UInt64 ssdY = computeSSD(orig->getLumaAddr(), recon->getLumaAddr(), stride, width, height);
-
-    height >>= 1;
-    width  >>= 1;
-    stride = recon->getCStride();
-
-    UInt64 ssdU = computeSSD(orig->getCbAddr(), recon->getCbAddr(), stride, width, height);
-    UInt64 ssdV = computeSSD(orig->getCrAddr(), recon->getCrAddr(), stride, width, height);
-
-    int maxvalY = 255 << (X265_DEPTH - 8);
-    int maxvalC = 255 << (X265_DEPTH - 8);
-    double refValueY = (double)maxvalY * maxvalY * size;
-    double refValueC = (double)maxvalC * maxvalC * size / 4.0;
-    double psnrY = (ssdY ? 10.0 * log10(refValueY / (double)ssdY) : 99.99);
-    double psnrU = (ssdU ? 10.0 * log10(refValueC / (double)ssdU) : 99.99);
-    double psnrV = (ssdV ? 10.0 * log10(refValueC / (double)ssdV) : 99.99);
-
-    const char* digestStr = NULL;
-    if (param.decodedPictureHashSEI)
-    {
-        SEIDecodedPictureHash sei_recon_picture_digest;
-        if (param.decodedPictureHashSEI == 1)
-        {
-            /* calculate MD5sum for entire reconstructed picture */
-            sei_recon_picture_digest.method = SEIDecodedPictureHash::MD5;
-            calcMD5(*recon, sei_recon_picture_digest.digest);
-            digestStr = digestToString(sei_recon_picture_digest.digest, 16);
-        }
-        else if (param.decodedPictureHashSEI == 2)
-        {
-            sei_recon_picture_digest.method = SEIDecodedPictureHash::CRC;
-            calcCRC(*recon, sei_recon_picture_digest.digest);
-            digestStr = digestToString(sei_recon_picture_digest.digest, 2);
-        }
-        else if (param.decodedPictureHashSEI == 3)
-        {
-            sei_recon_picture_digest.method = SEIDecodedPictureHash::CHECKSUM;
-            calcChecksum(*recon, sei_recon_picture_digest.digest);
-            digestStr = digestToString(sei_recon_picture_digest.digest, 4);
-        }
-
-        /* write the SEI messages */
-        OutputNALUnit onalu(NAL_UNIT_SUFFIX_SEI, 0);
-        m_frameEncoder->m_seiWriter.writeSEImessage(onalu.m_Bitstream, sei_recon_picture_digest, pic->getSlice()->getSPS());
-        writeRBSPTrailingBits(onalu.m_Bitstream);
-
-        int count = 0;
-        while(nalunits[count] != NULL)
-            count++;
-        nalunits[count] = (NALUnitEBSP*)X265_MALLOC(NALUnitEBSP, 1);
-        if (nalunits[count])
-            nalunits[count]->init(onalu);
-        else
-            digestStr = NULL;
-    }
-
-    /* calculate the size of the access unit, excluding:
-     *  - any AnnexB contributions (start_code_prefix, zero_byte, etc.,)
-     *  - SEI NAL units
-     */
-    UInt numRBSPBytes = 0;
-    for (int count = 0; nalunits[count] != NULL; count++)
-    {
-        UInt numRBSPBytes_nal = nalunits[count]->m_packetSize;
-#if VERBOSE_RATE
-        printf("*** %6s numBytesInNALunit: %u\n", nalUnitTypeToString((*it)->m_nalUnitType), numRBSPBytes_nal);
-#endif
-        if (nalunits[count]->m_nalUnitType != NAL_UNIT_PREFIX_SEI && nalunits[count]->m_nalUnitType != NAL_UNIT_SUFFIX_SEI)
-        {
-            numRBSPBytes += numRBSPBytes_nal;
-        }
-    }
-
-    UInt bits = numRBSPBytes * 8;
-
-    //===== add PSNR =====
-    m_analyzeAll.addResult(psnrY, psnrU, psnrV, (double)bits);
-    TComSlice*  slice = pic->getSlice();
-    if (slice->isIntra())
-    {
-        m_analyzeI.addResult(psnrY, psnrU, psnrV, (double)bits);
-    }
-    if (slice->isInterP())
-    {
-        m_analyzeP.addResult(psnrY, psnrU, psnrV, (double)bits);
-    }
-    if (slice->isInterB())
-    {
-        m_analyzeB.addResult(psnrY, psnrU, psnrV, (double)bits);
-    }
-    if (param.bEnableSsim)
-    {
-        if (pic->getSlice()->m_ssimCnt > 0)
-        {
-            double ssim = pic->getSlice()->m_ssim / pic->getSlice()->m_ssimCnt;
-            m_globalSsim += ssim;
-        }
-    }
-    if (param.logLevel >= X265_LOG_DEBUG)
-    {
-        char c = (slice->isIntra() ? 'I' : slice->isInterP() ? 'P' : 'B');
-
-        if (!slice->isReferenced())
-            c += 32; // lower case if unreferenced
-
-        fprintf(stderr, "\rPOC %4d ( %c-SLICE, nQP %d QP %d) %10d bits",
-                slice->getPOC(),
-                c,
-                slice->getSliceQpBase(),
-                slice->getSliceQp(),
-                bits);
-
-        fprintf(stderr, " [Y:%6.2lf U:%6.2lf V:%6.2lf]", psnrY, psnrU, psnrV);
-
-        if (!slice->isIntra())
-        {
-            int numLists = slice->isInterP() ? 1 : 2;
-            for (int list = 0; list < numLists; list++)
-            {
-                fprintf(stderr, " [L%d ", list);
-                for (int ref = 0; ref < slice->getNumRefIdx(RefPicList(list)); ref++)
-                {
-                    fprintf(stderr, "%d ", slice->getRefPOC(RefPicList(list), ref) - slice->getLastIDR());
-                }
-
-                fprintf(stderr, "]");
-            }
-        }
-        if (digestStr && param.logLevel >= 4)
-        {
-            if (param.decodedPictureHashSEI == 1)
-            {
-                fprintf(stderr, " [MD5:%s]", digestStr);
-            }
-            else if (param.decodedPictureHashSEI == 2)
-            {
-                fprintf(stderr, " [CRC:%s]", digestStr);
-            }
-            else if (param.decodedPictureHashSEI == 3)
-            {
-                fprintf(stderr, " [Checksum:%s]", digestStr);
-            }
-        }
-        fprintf(stderr, "\n");
-        fflush(stderr);
-    }
-
-    return bits;
-}
-
-void TEncTop::xInitSPS(TComSPS *sps)
-{
-    ProfileTierLevel& profileTierLevel = *sps->getPTL()->getGeneralPTL();
-
-    profileTierLevel.setLevelIdc(m_level);
-    profileTierLevel.setTierFlag(m_levelTier);
-    profileTierLevel.setProfileIdc(m_profile);
-    profileTierLevel.setProfileCompatibilityFlag(m_profile, 1);
-    profileTierLevel.setProgressiveSourceFlag(m_progressiveSourceFlag);
-    profileTierLevel.setInterlacedSourceFlag(m_interlacedSourceFlag);
-    profileTierLevel.setNonPackedConstraintFlag(m_nonPackedConstraintFlag);
-    profileTierLevel.setFrameOnlyConstraintFlag(m_frameOnlyConstraintFlag);
-
-    if (m_profile == Profile::MAIN10 && X265_DEPTH == 8)
-    {
-        /* The above constraint is equal to Profile::MAIN */
-        profileTierLevel.setProfileCompatibilityFlag(Profile::MAIN, 1);
-    }
-    if (m_profile == Profile::MAIN)
-    {
-        /* A Profile::MAIN10 decoder can always decode Profile::MAIN */
-        profileTierLevel.setProfileCompatibilityFlag(Profile::MAIN10, 1);
-    }
-    /* XXX: should Main be marked as compatible with still picture? */
-
-    /* XXX: may be a good idea to refactor the above into a function
-     * that chooses the actual compatibility based upon options */
-
-    sps->setPicWidthInLumaSamples(param.sourceWidth);
-    sps->setPicHeightInLumaSamples(param.sourceHeight);
-    sps->setConformanceWindow(m_conformanceWindow);
-    sps->setMaxCUWidth(g_maxCUWidth);
-    sps->setMaxCUHeight(g_maxCUHeight);
-    sps->setMaxCUDepth(g_maxCUDepth);
-
-    int minCUSize = sps->getMaxCUWidth() >> (sps->getMaxCUDepth() - g_addCUDepth);
-    int log2MinCUSize = 0;
-    while (minCUSize > 1)
-    {
-        minCUSize >>= 1;
-        log2MinCUSize++;
-    }
-
-    sps->setLog2MinCodingBlockSize(log2MinCUSize);
-    sps->setLog2DiffMaxMinCodingBlockSize(sps->getMaxCUDepth() - g_addCUDepth);
-
-    sps->setPCMLog2MinSize(m_pcmLog2MinSize);
-    sps->setUsePCM(m_usePCM);
-    sps->setPCMLog2MaxSize(m_pcmLog2MaxSize);
-
-    sps->setQuadtreeTULog2MaxSize(m_quadtreeTULog2MaxSize);
-    sps->setQuadtreeTULog2MinSize(m_quadtreeTULog2MinSize);
-    sps->setQuadtreeTUMaxDepthInter(param.tuQTMaxInterDepth);
-    sps->setQuadtreeTUMaxDepthIntra(param.tuQTMaxIntraDepth);
-
-    sps->setTMVPFlagsPresent(false);
-    sps->setUseLossless(m_useLossless);
-
-    sps->setMaxTrSize(1 << m_quadtreeTULog2MaxSize);
-
-    int i;
-
-    for (i = 0; i < g_maxCUDepth - g_addCUDepth; i++)
-    {
-        sps->setAMPAcc(i, param.bEnableAMP);
-    }
-
-    sps->setUseAMP(param.bEnableAMP);
-
-    for (i = g_maxCUDepth - g_addCUDepth; i < g_maxCUDepth; i++)
-    {
-        sps->setAMPAcc(i, 0);
-    }
-
-    sps->setBitDepthY(X265_DEPTH);
-    sps->setBitDepthC(X265_DEPTH);
-
-    sps->setQpBDOffsetY(6 * (X265_DEPTH - 8));
-    sps->setQpBDOffsetC(6 * (X265_DEPTH - 8));
-
-    sps->setUseSAO(param.bEnableSAO);
-
-    // TODO: hard-code these values in SPS code
-    sps->setMaxTLayers(1);
-    sps->setTemporalIdNestingFlag(true);
-    for (i = 0; i < sps->getMaxTLayers(); i++)
-    {
-        sps->setMaxDecPicBuffering(m_maxDecPicBuffering[i], i);
-        sps->setNumReorderPics(m_numReorderPics[i], i);
-    }
-
-    // TODO: it is recommended for this to match the input bit depth
-    sps->setPCMBitDepthLuma(X265_DEPTH);
-    sps->setPCMBitDepthChroma(X265_DEPTH);
-
-    sps->setPCMFilterDisableFlag(m_bPCMFilterDisableFlag);
-
-    sps->setScalingListFlag((m_useScalingListId == 0) ? 0 : 1);
-
-    sps->setUseStrongIntraSmoothing(param.bEnableStrongIntraSmoothing);
-
-    sps->setVuiParametersPresentFlag(getVuiParametersPresentFlag());
-    if (sps->getVuiParametersPresentFlag())
-    {
-        TComVUI* vui = sps->getVuiParameters();
-        vui->setAspectRatioInfoPresentFlag(getAspectRatioIdc() != -1);
-        vui->setAspectRatioIdc(getAspectRatioIdc());
-        vui->setSarWidth(getSarWidth());
-        vui->setSarHeight(getSarHeight());
-        vui->setOverscanInfoPresentFlag(getOverscanInfoPresentFlag());
-        vui->setOverscanAppropriateFlag(getOverscanAppropriateFlag());
-        vui->setVideoSignalTypePresentFlag(getVideoSignalTypePresentFlag());
-        vui->setVideoFormat(getVideoFormat());
-        vui->setVideoFullRangeFlag(getVideoFullRangeFlag());
-        vui->setColourDescriptionPresentFlag(getColourDescriptionPresentFlag());
-        vui->setColourPrimaries(getColourPrimaries());
-        vui->setTransferCharacteristics(getTransferCharacteristics());
-        vui->setMatrixCoefficients(getMatrixCoefficients());
-        vui->setChromaLocInfoPresentFlag(getChromaLocInfoPresentFlag());
-        vui->setChromaSampleLocTypeTopField(getChromaSampleLocTypeTopField());
-        vui->setChromaSampleLocTypeBottomField(getChromaSampleLocTypeBottomField());
-        vui->setNeutralChromaIndicationFlag(getNeutralChromaIndicationFlag());
-        vui->setDefaultDisplayWindow(getDefaultDisplayWindow());
-        vui->setFrameFieldInfoPresentFlag(getFrameFieldInfoPresentFlag());
-        vui->setFieldSeqFlag(false);
-        vui->setHrdParametersPresentFlag(false);
-        vui->getTimingInfo()->setPocProportionalToTimingFlag(getPocProportionalToTimingFlag());
-        vui->getTimingInfo()->setNumTicksPocDiffOneMinus1(getNumTicksPocDiffOneMinus1());
-        vui->setBitstreamRestrictionFlag(getBitstreamRestrictionFlag());
-        vui->setMotionVectorsOverPicBoundariesFlag(getMotionVectorsOverPicBoundariesFlag());
-        vui->setMinSpatialSegmentationIdc(getMinSpatialSegmentationIdc());
-        vui->setMaxBytesPerPicDenom(getMaxBytesPerPicDenom());
-        vui->setMaxBitsPerMinCuDenom(getMaxBitsPerMinCuDenom());
-        vui->setLog2MaxMvLengthHorizontal(getLog2MaxMvLengthHorizontal());
-        vui->setLog2MaxMvLengthVertical(getLog2MaxMvLengthVertical());
-    }
-
-    /* set the VPS profile information */
-    *getVPS()->getPTL() = *sps->getPTL();
-    getVPS()->getTimingInfo()->setTimingInfoPresentFlag(false);
-}
-
-void TEncTop::xInitPPS(TComPPS *pps)
-{
-    pps->setConstrainedIntraPred(param.bEnableConstrainedIntra);
-    bool bUseDQP = (getMaxCuDQPDepth() > 0) ? true : false;
-
-    int lowestQP = -(6 * (X265_DEPTH - 8)); //m_cSPS.getQpBDOffsetY();
-
-    if (getUseLossless())
-    {
-        if ((getMaxCuDQPDepth() == 0) && (param.rc.qp == lowestQP))
-        {
-            bUseDQP = false;
-        }
-        else
-        {
-            bUseDQP = true;
-        }
-    }
-
-    if (bUseDQP)
-    {
-        pps->setUseDQP(true);
-        pps->setMaxCuDQPDepth(m_maxCuDQPDepth);
-        pps->setMinCuDQPSize(pps->getSPS()->getMaxCUWidth() >> (pps->getMaxCuDQPDepth()));
-    }
-    else
-    {
-        pps->setUseDQP(false);
-        pps->setMaxCuDQPDepth(0);
-        pps->setMinCuDQPSize(pps->getSPS()->getMaxCUWidth() >> (pps->getMaxCuDQPDepth()));
-    }
-
-    pps->setChromaCbQpOffset(param.cbQpOffset);
-    pps->setChromaCrQpOffset(param.crQpOffset);
-
-    pps->setEntropyCodingSyncEnabledFlag(param.bEnableWavefront);
-    pps->setUseWP(param.bEnableWeightedPred);
-    pps->setWPBiPred(param.bEnableWeightedBiPred);
-    pps->setOutputFlagPresentFlag(false);
-    pps->setSignHideFlag(param.bEnableSignHiding);
-    pps->setDeblockingFilterControlPresentFlag(!param.bEnableLoopFilter);
-    pps->setDeblockingFilterOverrideEnabledFlag(!m_loopFilterOffsetInPPS);
-    pps->setPicDisableDeblockingFilterFlag(!param.bEnableLoopFilter);
-    pps->setLog2ParallelMergeLevelMinus2(m_log2ParallelMergeLevelMinus2);
-    pps->setCabacInitPresentFlag(param.frameNumThreads > 1 ? 0 : CABAC_INIT_PRESENT_FLAG);
-
-    pps->setNumRefIdxL0DefaultActive(1);
-    pps->setNumRefIdxL1DefaultActive(1);
-
-    pps->setTransquantBypassEnableFlag(getTransquantBypassEnableFlag());
-    pps->setUseTransformSkip(param.bEnableTransformSkip);
-    pps->setLoopFilterAcrossTilesEnabledFlag(m_loopFilterAcrossTilesEnabledFlag);
-}
-
-//! \}
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/Lib/TLibEncoder/TEncTop.h
--- a/source/Lib/TLibEncoder/TEncTop.h	Wed Oct 09 00:00:10 2013 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,124 +0,0 @@
-/* The copyright in this software is being made available under the BSD
- * License, included below. This software may be subject to other third party
- * and contributor rights, including patent rights, and no such rights are
- * granted under this license.
- *
- * Copyright (c) 2010-2013, ITU/ISO/IEC
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  * Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
- *    be used to endorse or promote products derived from this software without
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/** \file     TEncTop.h
-    \brief    encoder class (header)
-*/
-
-#ifndef X265_TENCTOP_H
-#define X265_TENCTOP_H
-
-#include "x265.h"
-
-// Include files
-#include "TLibCommon/NAL.h"
-#include "TEncCfg.h"
-#include "TEncAnalyze.h"
-#include "threading.h"
-
-namespace x265 {
-// private namespace
-
-class FrameEncoder;
-class DPB;
-struct Lookahead;
-struct RateControl;
-class ThreadPool;
-
-//! \ingroup TLibEncoder
-//! \{
-
-// ====================================================================================================================
-// Class definition
-// ====================================================================================================================
-
-/// encoder class
-class TEncTop : public TEncCfg
-{
-private:
-
-    int                m_pocLast;          ///< time index (POC)
-    TComList<TComPic*> m_freeList;
-
-    ThreadPool*        m_threadPool;
-    Lookahead*         m_lookahead;
-    FrameEncoder*      m_frameEncoder;
-    DPB*               m_dpb;
-    RateControl*       m_rateControl;
-
-    /* frame parallelism */
-    int                m_curEncoder;
-
-    /* Collect statistics globally */
-    TEncAnalyze        m_analyzeAll;
-    TEncAnalyze        m_analyzeI;
-    TEncAnalyze        m_analyzeP;
-    TEncAnalyze        m_analyzeB;
-
-    // quality control
-    TComScalingList    m_scalingList;      ///< quantization matrix information
-    double             m_globalSsim;
-
-public:
-
-    TEncTop();
-
-    virtual ~TEncTop();
-
-    void create();
-    void destroy();
-    void init();
-
-    void xInitSPS(TComSPS *sps);
-    void xInitPPS(TComPPS *pps);
-
-    int encode(bool bEos, const x265_picture_t* pic, x265_picture_t *pic_out, NALUnitEBSP **nalunits);
-
-    int getStreamHeaders(NALUnitEBSP **nalunits);
-
-    void fetchStats(x265_stats_t* stats);
-
-    double printSummary();
-
-    TComScalingList* getScalingList() { return &m_scalingList; }
-
-    void setThreadPool(ThreadPool* p) { m_threadPool = p; }
-
-protected:
-
-    double calculateHashAndPSNR(TComPic* pic, NALUnitEBSP **nalunits); // Returns total number of bits for encoded pic
-};
-}
-//! \}
-
-#endif // ifndef X265_TENCTOP_H
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/CMakeLists.txt
--- a/source/encoder/CMakeLists.txt	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/encoder/CMakeLists.txt	Wed Oct 09 00:52:30 2013 -0500
@@ -25,7 +25,6 @@
     ../Lib/TLibEncoder/TEncSampleAdaptiveOffset.h
     ../Lib/TLibEncoder/TEncSbac.h
     ../Lib/TLibEncoder/TEncSearch.h
-    ../Lib/TLibEncoder/TEncTop.h
     ../Lib/TLibEncoder/WeightPredAnalysis.h)
 set(LIBENCODER_SRC
     ../Lib/TLibEncoder/NALwrite.cpp
@@ -39,7 +38,6 @@
     ../Lib/TLibEncoder/TEncSampleAdaptiveOffset.cpp
     ../Lib/TLibEncoder/TEncSbac.cpp
     ../Lib/TLibEncoder/TEncSearch.cpp
-    ../Lib/TLibEncoder/TEncTop.cpp
     ../Lib/TLibEncoder/WeightPredAnalysis.cpp)
 source_group(TLibEncoder FILES ${LIBENCODER_SRC})
 source_group(TLibEncoderH FILES ${LIBENCODER_HDR})
@@ -70,4 +68,5 @@
     cturow.cpp cturow.h
     dpb.cpp dpb.h
     ratecontrol.cpp ratecontrol.h
-    compress.cpp encoder.cpp)
+    compress.cpp
+    encoder.cpp encoder.h)
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/cturow.cpp
--- a/source/encoder/cturow.cpp	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/encoder/cturow.cpp	Wed Oct 09 00:52:30 2013 -0500
@@ -23,13 +23,13 @@
  * For more information, contact us at licensing at multicorewareinc.com.
  *****************************************************************************/
 
-#include "TLibEncoder/TEncTop.h"
+#include "encoder.h"
 #include "PPA/ppa.h"
 #include "cturow.h"
 
 using namespace x265;
 
-void CTURow::create(TEncTop* top)
+void CTURow::create(Encoder* top)
 {
     m_rdGoOnSbacCoder.init(&m_rdGoOnBinCodersCABAC);
     m_sbacCoder.init(&m_binCoderCABAC);
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/cturow.h
--- a/source/encoder/cturow.h	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/encoder/cturow.h	Wed Oct 09 00:52:30 2013 -0500
@@ -36,7 +36,7 @@
 namespace x265 {
 // private x265 namespace
 
-class TEncTop;
+class Encoder;
 
 /* manages the state of encoding one row of CTU blocks.  When
  * WPP is active, several rows will be simultaneously encoded.
@@ -59,7 +59,7 @@
     TEncSbac            ***m_rdSbacCoders;
     TEncBinCABACCounter ***m_binCodersCABAC;
 
-    void create(TEncTop* top);
+    void create(Encoder* top);
 
     void destroy();
 
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/encoder.cpp
--- a/source/encoder/encoder.cpp	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/encoder/encoder.cpp	Wed Oct 09 00:52:30 2013 -0500
@@ -21,51 +21,839 @@
  * For more information, contact us at licensing at multicorewareinc.com.
  *****************************************************************************/
 
+#include "TLibCommon/NAL.h"
+#include "TLibCommon/CommonDef.h"
 #include "TLibCommon/TComList.h"
+#include "TLibCommon/TComPic.h"
 #include "TLibCommon/TComPicYuv.h"
+#include "TLibCommon/TComRom.h"
+#include "primitives.h"
+#include "threadpool.h"
 #include "common.h"
-#include "threadpool.h"
 
-#include "TLibEncoder/TEncTop.h"
+#include "TLibEncoder/NALwrite.h"
 #include "bitcost.h"
+#include "encoder.h"
+#include "slicetype.h"
+#include "frameencoder.h"
+#include "ratecontrol.h"
+#include "dpb.h"
+
 #include "x265.h"
 
+#include <cstdlib>
+#include <math.h> // log10
 #include <stdio.h>
 #include <string.h>
 
 using namespace x265;
 
-/* "Glue" interface class between TEncTop and C API */
-
-struct x265_t : public TEncTop
+Encoder::Encoder()
 {
-    x265_t();
-    virtual ~x265_t();
-
-    x265_nal_t *m_nals;
-    char *m_packetData;
-
-    void configure(x265_param_t *param);
-    void determineLevelAndProfile(x265_param_t *param);
-    int extract_naldata(NALUnitEBSP **nalunits);
-};
-
-x265_t::x265_t()
-{
+    m_pocLast = -1;
+    m_maxRefPicNum = 0;
+    m_curEncoder = 0;
+    m_lookahead = NULL;
+    m_frameEncoder = NULL;
+    m_rateControl = NULL;
+    m_dpb = NULL;
+    m_globalSsim = 0;
     m_nals = NULL;
     m_packetData = NULL;
+
+#if ENC_DEC_TRACE
+    g_hTrace = fopen("TraceEnc.txt", "wb");
+    g_bJustDoIt = g_bEncDecTraceDisable;
+    g_nSymbolCounter = 0;
+#endif
 }
 
-x265_t::~x265_t()
+Encoder::~Encoder()
 {
-    if (m_nals)
-        X265_FREE(m_nals);
-
-    if (m_packetData)
-        X265_FREE(m_packetData);
+#if ENC_DEC_TRACE
+    fclose(g_hTrace);
+#endif
 }
 
-void x265_t::determineLevelAndProfile(x265_param_t *_param)
+void Encoder::create()
+{
+    if (!primitives.sad[0])
+    {
+        // this should be an impossible condition when using our public API, and indicates a serious bug.
+        x265_log(&param, X265_LOG_ERROR, "Primitives must be initialized before encoder is created\n");
+        abort();
+    }
+
+    m_frameEncoder = new FrameEncoder[param.frameNumThreads];
+    if (m_frameEncoder)
+    {
+        for (int i = 0; i < param.frameNumThreads; i++)
+        {
+            m_frameEncoder[i].setThreadPool(m_threadPool);
+        }
+    }
+    m_lookahead = new Lookahead(this);
+    m_dpb = new DPB(this);
+    m_rateControl = new RateControl(&param);
+}
+
+void Encoder::destroy()
+{
+    if (m_frameEncoder)
+    {
+        for (int i = 0; i < param.frameNumThreads; i++)
+        {
+            // Ensure frame encoder is idle before destroying it
+            m_frameEncoder[i].getEncodedPicture(NULL);
+            m_frameEncoder[i].destroy();
+        }
+
+        delete [] m_frameEncoder;
+    }
+
+    while (!m_freeList.empty())
+    {
+        TComPic* pic = m_freeList.popFront();
+        pic->destroy(param.bframes);
+        delete pic;
+    }
+
+    if (m_lookahead)
+    {
+        m_lookahead->destroy();
+        delete m_lookahead;
+    }
+
+    delete m_dpb;
+    delete m_rateControl;
+
+    // thread pool release should always happen last
+    if (m_threadPool)
+        m_threadPool->release();
+
+    X265_FREE(m_nals);
+    X265_FREE(m_packetData);
+}
+
+void Encoder::init()
+{
+    if (m_frameEncoder)
+    {
+        int numRows = (param.sourceHeight + g_maxCUHeight - 1) / g_maxCUHeight;
+        for (int i = 0; i < param.frameNumThreads; i++)
+        {
+            m_frameEncoder[i].init(this, numRows);
+        }
+    }
+}
+
+int Encoder::getStreamHeaders(NALUnitEBSP **nalunits)
+{
+    return m_frameEncoder->getStreamHeaders(nalunits);
+}
+
+/**
+ \param   flush               force encoder to encode a frame
+ \param   pic_in              input original YUV picture or NULL
+ \param   pic_out             pointer to reconstructed picture struct
+ \param   nalunits            output NAL packets
+ \retval                      number of encoded pictures
+ */
+int Encoder::encode(bool flush, const x265_picture_t* pic_in, x265_picture_t *pic_out, NALUnitEBSP **nalunits)
+{
+    if (pic_in)
+    {
+        TComPic *pic;
+        if (m_freeList.empty())
+        {
+            pic = new TComPic;
+            pic->create(param.sourceWidth, param.sourceHeight, g_maxCUWidth, g_maxCUHeight, g_maxCUDepth,
+                        getConformanceWindow(), getDefaultDisplayWindow(), param.bframes);
+            if (param.bEnableSAO)
+            {
+                // TODO: these should be allocated on demand within the encoder
+                // NOTE: the SAO pointer from m_frameEncoder for read m_maxSplitLevel, etc, we can remove it later
+                pic->getPicSym()->allocSaoParam(m_frameEncoder->getSAO());
+            }
+        }
+        else
+            pic = m_freeList.popBack();
+
+        /* Copy input picture into a TComPic, send to lookahead */
+        pic->getSlice()->setPOC(++m_pocLast);
+        pic->getPicYuvOrg()->copyFromPicture(*pic_in);
+        pic->m_userData = pic_in->userData;
+
+        // Encoder holds a reference count until collecting stats
+        ATOMIC_INC(&pic->m_countRefEncoders);
+        m_lookahead->addPicture(pic, pic_in->sliceType);
+    }
+
+    if (flush)
+        m_lookahead->flush();
+
+    FrameEncoder *curEncoder = &m_frameEncoder[m_curEncoder];
+    m_curEncoder = (m_curEncoder + 1) % param.frameNumThreads;
+    int ret = 0;
+
+    // getEncodedPicture() should block until the FrameEncoder has completed
+    // encoding the frame.  This is how back-pressure through the API is
+    // accomplished when the encoder is full.
+    TComPic *out = curEncoder->getEncodedPicture(nalunits);
+
+    if (!out && flush)
+    {
+        // if the current encoder did not return an output picture and we are
+        // flushing, check all the other encoders in logical order until
+        // we find an output picture or have cycled around.  We cannot return
+        // 0 until the entire stream is flushed
+        // (can only be an issue when --frames < --frame-threads)
+        int flushed = m_curEncoder;
+        do
+        {
+            curEncoder = &m_frameEncoder[m_curEncoder];
+            m_curEncoder = (m_curEncoder + 1) % param.frameNumThreads;
+            out = curEncoder->getEncodedPicture(nalunits);
+        }
+        while (!out && flushed != m_curEncoder);
+    }
+    if (out)
+    {
+        if (pic_out)
+        {
+            TComPicYuv *recpic = out->getPicYuvRec();
+            pic_out->poc = out->getSlice()->getPOC();
+            pic_out->bitDepth = sizeof(Pel) * 8;
+            pic_out->userData = out->m_userData;
+            switch (out->getSlice()->getSliceType())
+            {
+            case I_SLICE:
+                pic_out->sliceType = X265_TYPE_I;
+                break;
+            case P_SLICE:
+                pic_out->sliceType = X265_TYPE_P;
+                break;
+            case B_SLICE:
+                pic_out->sliceType = X265_TYPE_B;
+                break;
+            }
+            pic_out->planes[0] = recpic->getLumaAddr();
+            pic_out->stride[0] = recpic->getStride();
+            pic_out->planes[1] = recpic->getCbAddr();
+            pic_out->stride[1] = recpic->getCStride();
+            pic_out->planes[2] = recpic->getCrAddr();
+            pic_out->stride[2] = recpic->getCStride();
+        }
+
+        uint64_t bits = calculateHashAndPSNR(out, nalunits);
+        // Allow this frame to be recycled if no frame encoders are using it for reference
+        ATOMIC_DEC(&out->m_countRefEncoders);
+
+        m_rateControl->rateControlEnd(bits, &(curEncoder->m_rce));
+
+        m_dpb->recycleUnreferenced(m_freeList);
+
+        ret = 1;
+    }
+
+    if (!m_lookahead->outputQueue.empty())
+    {
+        // pop a single frame from decided list, then provide to frame encoder
+        // curEncoder is guaranteed to be idle at this point
+        TComPic *fenc = m_lookahead->outputQueue.popFront();
+
+        // Initialize slice for encoding with this FrameEncoder
+        curEncoder->initSlice(fenc);
+
+        // determine references, setup RPS, etc
+        m_dpb->prepareEncode(fenc);
+
+        // set slice QP
+        m_rateControl->rateControlStart(fenc, m_lookahead, &(curEncoder->m_rce));
+
+        // Allow FrameEncoder::compressFrame() to start in a worker thread
+        curEncoder->m_enable.trigger();
+    }
+
+    return ret;
+}
+
+double Encoder::printSummary()
+{
+    double fps = (double)param.frameRate;
+    if (param.logLevel >= X265_LOG_INFO)
+    {
+        m_analyzeI.printOut('i', fps);
+        m_analyzeP.printOut('p', fps);
+        m_analyzeB.printOut('b', fps);
+        m_analyzeAll.printOut('a', fps);
+    }
+
+#if _SUMMARY_OUT_
+    m_analyzeAll.printSummaryOut(fps);
+#endif
+#if _SUMMARY_PIC_
+    m_analyzeI.printSummary('I', fps);
+    m_analyzeP.printSummary('P', fps);
+    m_analyzeB.printSummary('B', fps);
+#endif
+
+    if (m_analyzeAll.getNumPic())
+        return (m_analyzeAll.getPsnrY() * 6 + m_analyzeAll.getPsnrU() + m_analyzeAll.getPsnrV()) / (8 * m_analyzeAll.getNumPic());
+    else
+        return 100.0;
+}
+
+void Encoder::fetchStats(x265_stats_t *stats)
+{
+    stats->globalPsnrY = m_analyzeAll.getPsnrY();
+    stats->globalPsnrU = m_analyzeAll.getPsnrU();
+    stats->globalPsnrV = m_analyzeAll.getPsnrV();
+    stats->totalNumPics = m_analyzeAll.getNumPic();
+    stats->accBits = m_analyzeAll.getBits();
+    if (stats->totalNumPics > 0)
+    {
+        stats->globalSsim = m_globalSsim / stats->totalNumPics;
+        stats->globalPsnr = (stats->globalPsnrY * 6 + stats->globalPsnrU + stats->globalPsnrV) / (8 * stats->totalNumPics);
+    }
+    else
+    {
+        stats->globalSsim = 0;
+        stats->globalPsnr = 0;
+    }
+}
+
+#define VERBOSE_RATE 0
+#if VERBOSE_RATE
+static const char* nalUnitTypeToString(NalUnitType type)
+{
+    switch (type)
+    {
+    case NAL_UNIT_CODED_SLICE_TRAIL_R:    return "TRAIL_R";
+    case NAL_UNIT_CODED_SLICE_TRAIL_N:    return "TRAIL_N";
+    case NAL_UNIT_CODED_SLICE_TLA_R:      return "TLA_R";
+    case NAL_UNIT_CODED_SLICE_TSA_N:      return "TSA_N";
+    case NAL_UNIT_CODED_SLICE_STSA_R:     return "STSA_R";
+    case NAL_UNIT_CODED_SLICE_STSA_N:     return "STSA_N";
+    case NAL_UNIT_CODED_SLICE_BLA_W_LP:   return "BLA_W_LP";
+    case NAL_UNIT_CODED_SLICE_BLA_W_RADL: return "BLA_W_RADL";
+    case NAL_UNIT_CODED_SLICE_BLA_N_LP:   return "BLA_N_LP";
+    case NAL_UNIT_CODED_SLICE_IDR_W_RADL: return "IDR_W_RADL";
+    case NAL_UNIT_CODED_SLICE_IDR_N_LP:   return "IDR_N_LP";
+    case NAL_UNIT_CODED_SLICE_CRA:        return "CRA";
+    case NAL_UNIT_CODED_SLICE_RADL_R:     return "RADL_R";
+    case NAL_UNIT_CODED_SLICE_RASL_R:     return "RASL_R";
+    case NAL_UNIT_VPS:                    return "VPS";
+    case NAL_UNIT_SPS:                    return "SPS";
+    case NAL_UNIT_PPS:                    return "PPS";
+    case NAL_UNIT_ACCESS_UNIT_DELIMITER:  return "AUD";
+    case NAL_UNIT_EOS:                    return "EOS";
+    case NAL_UNIT_EOB:                    return "EOB";
+    case NAL_UNIT_FILLER_DATA:            return "FILLER";
+    case NAL_UNIT_PREFIX_SEI:             return "SEI";
+    case NAL_UNIT_SUFFIX_SEI:             return "SEI";
+    default:                              return "UNK";
+    }
+}
+
+#endif // if VERBOSE_RATE
+
+// TODO:
+//   1 - as a performance optimization, if we're not reporting PSNR we do not have to measure PSNR
+//       (we do not yet have a switch to disable PSNR reporting)
+//   2 - it would be better to accumulate SSD of each CTU at the end of processCTU() while it is cache-hot
+//       in fact, we almost certainly are already measuring the CTU distortion and not accumulating it
+static UInt64 computeSSD(Pel *fenc, Pel *rec, int stride, int width, int height)
+{
+    UInt64 ssd = 0;
+
+    if ((width | height) & 3)
+    {
+        /* Slow Path */
+        for (int y = 0; y < height; y++)
+        {
+            for (int x = 0; x < width; x++)
+            {
+                int diff = (int)(fenc[x] - rec[x]);
+                ssd += diff * diff;
+            }
+
+            fenc += stride;
+            rec += stride;
+        }
+
+        return ssd;
+    }
+
+    int y = 0;
+    /* Consume Y in chunks of 64 */
+    for (; y + 64 <= height; y += 64)
+    {
+        int x = 0;
+
+        if (!(stride & 31))
+            for (; x + 64 <= width; x += 64)
+            {
+                ssd += primitives.sse_pp[PARTITION_64x64](fenc + x, stride, rec + x, stride);
+            }
+
+        if (!(stride & 15))
+            for (; x + 16 <= width; x += 16)
+            {
+                ssd += primitives.sse_pp[PARTITION_16x64](fenc + x, stride, rec + x, stride);
+            }
+
+        for (; x + 4 <= width; x += 4)
+        {
+            ssd += primitives.sse_pp[PARTITION_4x64](fenc + x, stride, rec + x, stride);
+        }
+
+        fenc += stride * 64;
+        rec += stride * 64;
+    }
+
+    /* Consume Y in chunks of 16 */
+    for (; y + 16 <= height; y += 16)
+    {
+        int x = 0;
+
+        if (!(stride & 31))
+            for (; x + 64 <= width; x += 64)
+            {
+                ssd += primitives.sse_pp[PARTITION_64x16](fenc + x, stride, rec + x, stride);
+            }
+
+        if (!(stride & 15))
+            for (; x + 16 <= width; x += 16)
+            {
+                ssd += primitives.sse_pp[PARTITION_16x16](fenc + x, stride, rec + x, stride);
+            }
+
+        for (; x + 4 <= width; x += 4)
+        {
+            ssd += primitives.sse_pp[PARTITION_4x16](fenc + x, stride, rec + x, stride);
+        }
+
+        fenc += stride * 16;
+        rec += stride * 16;
+    }
+
+    /* Consume Y in chunks of 4 */
+    for (; y + 4 <= height; y += 4)
+    {
+        int x = 0;
+
+        if (!(stride & 31))
+            for (; x + 64 <= width; x += 64)
+            {
+                ssd += primitives.sse_pp[PARTITION_64x4](fenc + x, stride, rec + x, stride);
+            }
+
+        if (!(stride & 15))
+            for (; x + 16 <= width; x += 16)
+            {
+                ssd += primitives.sse_pp[PARTITION_16x4](fenc + x, stride, rec + x, stride);
+            }
+
+        for (; x + 4 <= width; x += 4)
+        {
+            ssd += primitives.sse_pp[PARTITION_4x4](fenc + x, stride, rec + x, stride);
+        }
+
+        fenc += stride * 4;
+        rec += stride * 4;
+    }
+
+    return ssd;
+}
+
+/**
+ * Produce an ascii(hex) representation of picture digest.
+ *
+ * Returns: a statically allocated null-terminated string.  DO NOT FREE.
+ */
+static const char*digestToString(const unsigned char digest[3][16], int numChar)
+{
+    const char* hex = "0123456789abcdef";
+    static char string[99];
+    int cnt = 0;
+
+    for (int yuvIdx = 0; yuvIdx < 3; yuvIdx++)
+    {
+        for (int i = 0; i < numChar; i++)
+        {
+            string[cnt++] = hex[digest[yuvIdx][i] >> 4];
+            string[cnt++] = hex[digest[yuvIdx][i] & 0xf];
+        }
+
+        string[cnt++] = ',';
+    }
+
+    string[cnt - 1] = '\0';
+    return string;
+}
+
+/* Returns Number of bits in current encoded pic */
+uint64_t Encoder::calculateHashAndPSNR(TComPic* pic, NALUnitEBSP **nalunits)
+{
+    TComPicYuv* recon = pic->getPicYuvRec();
+    TComPicYuv* orig  = pic->getPicYuvOrg();
+
+    //===== calculate PSNR =====
+    int stride = recon->getStride();
+    int width  = recon->getWidth() - getPad(0);
+    int height = recon->getHeight() - getPad(1);
+    int size = width * height;
+
+    UInt64 ssdY = computeSSD(orig->getLumaAddr(), recon->getLumaAddr(), stride, width, height);
+
+    height >>= 1;
+    width  >>= 1;
+    stride = recon->getCStride();
+
+    UInt64 ssdU = computeSSD(orig->getCbAddr(), recon->getCbAddr(), stride, width, height);
+    UInt64 ssdV = computeSSD(orig->getCrAddr(), recon->getCrAddr(), stride, width, height);
+
+    int maxvalY = 255 << (X265_DEPTH - 8);
+    int maxvalC = 255 << (X265_DEPTH - 8);
+    double refValueY = (double)maxvalY * maxvalY * size;
+    double refValueC = (double)maxvalC * maxvalC * size / 4.0;
+    double psnrY = (ssdY ? 10.0 * log10(refValueY / (double)ssdY) : 99.99);
+    double psnrU = (ssdU ? 10.0 * log10(refValueC / (double)ssdU) : 99.99);
+    double psnrV = (ssdV ? 10.0 * log10(refValueC / (double)ssdV) : 99.99);
+
+    const char* digestStr = NULL;
+    if (param.decodedPictureHashSEI)
+    {
+        SEIDecodedPictureHash sei_recon_picture_digest;
+        if (param.decodedPictureHashSEI == 1)
+        {
+            /* calculate MD5sum for entire reconstructed picture */
+            sei_recon_picture_digest.method = SEIDecodedPictureHash::MD5;
+            calcMD5(*recon, sei_recon_picture_digest.digest);
+            digestStr = digestToString(sei_recon_picture_digest.digest, 16);
+        }
+        else if (param.decodedPictureHashSEI == 2)
+        {
+            sei_recon_picture_digest.method = SEIDecodedPictureHash::CRC;
+            calcCRC(*recon, sei_recon_picture_digest.digest);
+            digestStr = digestToString(sei_recon_picture_digest.digest, 2);
+        }
+        else if (param.decodedPictureHashSEI == 3)
+        {
+            sei_recon_picture_digest.method = SEIDecodedPictureHash::CHECKSUM;
+            calcChecksum(*recon, sei_recon_picture_digest.digest);
+            digestStr = digestToString(sei_recon_picture_digest.digest, 4);
+        }
+
+        /* write the SEI messages */
+        OutputNALUnit onalu(NAL_UNIT_SUFFIX_SEI, 0);
+        m_frameEncoder->m_seiWriter.writeSEImessage(onalu.m_Bitstream, sei_recon_picture_digest, pic->getSlice()->getSPS());
+        writeRBSPTrailingBits(onalu.m_Bitstream);
+
+        int count = 0;
+        while(nalunits[count] != NULL)
+            count++;
+        nalunits[count] = (NALUnitEBSP*)X265_MALLOC(NALUnitEBSP, 1);
+        if (nalunits[count])
+            nalunits[count]->init(onalu);
+        else
+            digestStr = NULL;
+    }
+
+    /* calculate the size of the access unit, excluding:
+     *  - any AnnexB contributions (start_code_prefix, zero_byte, etc.,)
+     *  - SEI NAL units
+     */
+    UInt numRBSPBytes = 0;
+    for (int count = 0; nalunits[count] != NULL; count++)
+    {
+        UInt numRBSPBytes_nal = nalunits[count]->m_packetSize;
+#if VERBOSE_RATE
+        printf("*** %6s numBytesInNALunit: %u\n", nalUnitTypeToString((*it)->m_nalUnitType), numRBSPBytes_nal);
+#endif
+        if (nalunits[count]->m_nalUnitType != NAL_UNIT_PREFIX_SEI && nalunits[count]->m_nalUnitType != NAL_UNIT_SUFFIX_SEI)
+        {
+            numRBSPBytes += numRBSPBytes_nal;
+        }
+    }
+
+    UInt bits = numRBSPBytes * 8;
+
+    //===== add PSNR =====
+    m_analyzeAll.addResult(psnrY, psnrU, psnrV, (double)bits);
+    TComSlice*  slice = pic->getSlice();
+    if (slice->isIntra())
+    {
+        m_analyzeI.addResult(psnrY, psnrU, psnrV, (double)bits);
+    }
+    if (slice->isInterP())
+    {
+        m_analyzeP.addResult(psnrY, psnrU, psnrV, (double)bits);
+    }
+    if (slice->isInterB())
+    {
+        m_analyzeB.addResult(psnrY, psnrU, psnrV, (double)bits);
+    }
+    if (param.bEnableSsim)
+    {
+        if (pic->getSlice()->m_ssimCnt > 0)
+        {
+            double ssim = pic->getSlice()->m_ssim / pic->getSlice()->m_ssimCnt;
+            m_globalSsim += ssim;
+        }
+    }
+    if (param.logLevel >= X265_LOG_DEBUG)
+    {
+        char c = (slice->isIntra() ? 'I' : slice->isInterP() ? 'P' : 'B');
+
+        if (!slice->isReferenced())
+            c += 32; // lower case if unreferenced
+
+        fprintf(stderr, "\rPOC %4d ( %c-SLICE, nQP %d QP %d) %10d bits",
+                slice->getPOC(),
+                c,
+                slice->getSliceQpBase(),
+                slice->getSliceQp(),
+                bits);
+
+        fprintf(stderr, " [Y:%6.2lf U:%6.2lf V:%6.2lf]", psnrY, psnrU, psnrV);
+
+        if (!slice->isIntra())
+        {
+            int numLists = slice->isInterP() ? 1 : 2;
+            for (int list = 0; list < numLists; list++)
+            {
+                fprintf(stderr, " [L%d ", list);
+                for (int ref = 0; ref < slice->getNumRefIdx(RefPicList(list)); ref++)
+                {
+                    fprintf(stderr, "%d ", slice->getRefPOC(RefPicList(list), ref) - slice->getLastIDR());
+                }
+
+                fprintf(stderr, "]");
+            }
+        }
+        if (digestStr && param.logLevel >= 4)
+        {
+            if (param.decodedPictureHashSEI == 1)
+            {
+                fprintf(stderr, " [MD5:%s]", digestStr);
+            }
+            else if (param.decodedPictureHashSEI == 2)
+            {
+                fprintf(stderr, " [CRC:%s]", digestStr);
+            }
+            else if (param.decodedPictureHashSEI == 3)
+            {
+                fprintf(stderr, " [Checksum:%s]", digestStr);
+            }
+        }
+        fprintf(stderr, "\n");
+        fflush(stderr);
+    }
+
+    return bits;
+}
+
+#if defined(_MSC_VER)
+#pragma warning(disable: 4800) // forcing int to bool
+#endif
+
+void Encoder::initSPS(TComSPS *sps)
+{
+    ProfileTierLevel& profileTierLevel = *sps->getPTL()->getGeneralPTL();
+
+    profileTierLevel.setLevelIdc(m_level);
+    profileTierLevel.setTierFlag(m_levelTier ? true : false);
+    profileTierLevel.setProfileIdc(m_profile);
+    profileTierLevel.setProfileCompatibilityFlag(m_profile, 1);
+    profileTierLevel.setProgressiveSourceFlag(m_progressiveSourceFlag);
+    profileTierLevel.setInterlacedSourceFlag(m_interlacedSourceFlag);
+    profileTierLevel.setNonPackedConstraintFlag(m_nonPackedConstraintFlag);
+    profileTierLevel.setFrameOnlyConstraintFlag(m_frameOnlyConstraintFlag);
+
+    if (m_profile == Profile::MAIN10 && X265_DEPTH == 8)
+    {
+        /* The above constraint is equal to Profile::MAIN */
+        profileTierLevel.setProfileCompatibilityFlag(Profile::MAIN, 1);
+    }
+    if (m_profile == Profile::MAIN)
+    {
+        /* A Profile::MAIN10 decoder can always decode Profile::MAIN */
+        profileTierLevel.setProfileCompatibilityFlag(Profile::MAIN10, 1);
+    }
+    /* XXX: should Main be marked as compatible with still picture? */
+
+    /* XXX: may be a good idea to refactor the above into a function
+     * that chooses the actual compatibility based upon options */
+
+    sps->setPicWidthInLumaSamples(param.sourceWidth);
+    sps->setPicHeightInLumaSamples(param.sourceHeight);
+    sps->setConformanceWindow(m_conformanceWindow);
+    sps->setMaxCUWidth(g_maxCUWidth);
+    sps->setMaxCUHeight(g_maxCUHeight);
+    sps->setMaxCUDepth(g_maxCUDepth);
+
+    int minCUSize = sps->getMaxCUWidth() >> (sps->getMaxCUDepth() - g_addCUDepth);
+    int log2MinCUSize = 0;
+    while (minCUSize > 1)
+    {
+        minCUSize >>= 1;
+        log2MinCUSize++;
+    }
+
+    sps->setLog2MinCodingBlockSize(log2MinCUSize);
+    sps->setLog2DiffMaxMinCodingBlockSize(sps->getMaxCUDepth() - g_addCUDepth);
+
+    sps->setPCMLog2MinSize(m_pcmLog2MinSize);
+    sps->setUsePCM(m_usePCM);
+    sps->setPCMLog2MaxSize(m_pcmLog2MaxSize);
+
+    sps->setQuadtreeTULog2MaxSize(m_quadtreeTULog2MaxSize);
+    sps->setQuadtreeTULog2MinSize(m_quadtreeTULog2MinSize);
+    sps->setQuadtreeTUMaxDepthInter(param.tuQTMaxInterDepth);
+    sps->setQuadtreeTUMaxDepthIntra(param.tuQTMaxIntraDepth);
+
+    sps->setTMVPFlagsPresent(false);
+    sps->setUseLossless(m_useLossless);
+
+    sps->setMaxTrSize(1 << m_quadtreeTULog2MaxSize);
+
+    for (UInt i = 0; i < g_maxCUDepth - g_addCUDepth; i++)
+    {
+        sps->setAMPAcc(i, param.bEnableAMP);
+    }
+
+    sps->setUseAMP(param.bEnableAMP);
+
+    for (UInt i = g_maxCUDepth - g_addCUDepth; i < g_maxCUDepth; i++)
+    {
+        sps->setAMPAcc(i, 0);
+    }
+
+    sps->setBitDepthY(X265_DEPTH);
+    sps->setBitDepthC(X265_DEPTH);
+
+    sps->setQpBDOffsetY(6 * (X265_DEPTH - 8));
+    sps->setQpBDOffsetC(6 * (X265_DEPTH - 8));
+
+    sps->setUseSAO(param.bEnableSAO);
+
+    // TODO: hard-code these values in SPS code
+    sps->setMaxTLayers(1);
+    sps->setTemporalIdNestingFlag(true);
+    for (UInt i = 0; i < sps->getMaxTLayers(); i++)
+    {
+        sps->setMaxDecPicBuffering(m_maxDecPicBuffering[i], i);
+        sps->setNumReorderPics(m_numReorderPics[i], i);
+    }
+
+    // TODO: it is recommended for this to match the input bit depth
+    sps->setPCMBitDepthLuma(X265_DEPTH);
+    sps->setPCMBitDepthChroma(X265_DEPTH);
+
+    sps->setPCMFilterDisableFlag(m_bPCMFilterDisableFlag);
+
+    sps->setScalingListFlag((m_useScalingListId == 0) ? 0 : 1);
+
+    sps->setUseStrongIntraSmoothing(param.bEnableStrongIntraSmoothing);
+
+    sps->setVuiParametersPresentFlag(getVuiParametersPresentFlag());
+    if (sps->getVuiParametersPresentFlag())
+    {
+        TComVUI* vui = sps->getVuiParameters();
+        vui->setAspectRatioInfoPresentFlag(getAspectRatioIdc() != -1);
+        vui->setAspectRatioIdc(getAspectRatioIdc());
+        vui->setSarWidth(getSarWidth());
+        vui->setSarHeight(getSarHeight());
+        vui->setOverscanInfoPresentFlag(getOverscanInfoPresentFlag());
+        vui->setOverscanAppropriateFlag(getOverscanAppropriateFlag());
+        vui->setVideoSignalTypePresentFlag(getVideoSignalTypePresentFlag());
+        vui->setVideoFormat(getVideoFormat());
+        vui->setVideoFullRangeFlag(getVideoFullRangeFlag());
+        vui->setColourDescriptionPresentFlag(getColourDescriptionPresentFlag());
+        vui->setColourPrimaries(getColourPrimaries());
+        vui->setTransferCharacteristics(getTransferCharacteristics());
+        vui->setMatrixCoefficients(getMatrixCoefficients());
+        vui->setChromaLocInfoPresentFlag(getChromaLocInfoPresentFlag());
+        vui->setChromaSampleLocTypeTopField(getChromaSampleLocTypeTopField());
+        vui->setChromaSampleLocTypeBottomField(getChromaSampleLocTypeBottomField());
+        vui->setNeutralChromaIndicationFlag(getNeutralChromaIndicationFlag());
+        vui->setDefaultDisplayWindow(getDefaultDisplayWindow());
+        vui->setFrameFieldInfoPresentFlag(getFrameFieldInfoPresentFlag());
+        vui->setFieldSeqFlag(false);
+        vui->setHrdParametersPresentFlag(false);
+        vui->getTimingInfo()->setPocProportionalToTimingFlag(getPocProportionalToTimingFlag());
+        vui->getTimingInfo()->setNumTicksPocDiffOneMinus1(getNumTicksPocDiffOneMinus1());
+        vui->setBitstreamRestrictionFlag(getBitstreamRestrictionFlag());
+        vui->setMotionVectorsOverPicBoundariesFlag(getMotionVectorsOverPicBoundariesFlag());
+        vui->setMinSpatialSegmentationIdc(getMinSpatialSegmentationIdc());
+        vui->setMaxBytesPerPicDenom(getMaxBytesPerPicDenom());
+        vui->setMaxBitsPerMinCuDenom(getMaxBitsPerMinCuDenom());
+        vui->setLog2MaxMvLengthHorizontal(getLog2MaxMvLengthHorizontal());
+        vui->setLog2MaxMvLengthVertical(getLog2MaxMvLengthVertical());
+    }
+
+    /* set the VPS profile information */
+    *getVPS()->getPTL() = *sps->getPTL();
+    getVPS()->getTimingInfo()->setTimingInfoPresentFlag(false);
+}
+
+void Encoder::initPPS(TComPPS *pps)
+{
+    pps->setConstrainedIntraPred(param.bEnableConstrainedIntra);
+    bool bUseDQP = (getMaxCuDQPDepth() > 0) ? true : false;
+
+    int lowestQP = -(6 * (X265_DEPTH - 8)); //m_cSPS.getQpBDOffsetY();
+
+    if (getUseLossless())
+    {
+        if ((getMaxCuDQPDepth() == 0) && (param.rc.qp == lowestQP))
+        {
+            bUseDQP = false;
+        }
+        else
+        {
+            bUseDQP = true;
+        }
+    }
+
+    if (bUseDQP)
+    {
+        pps->setUseDQP(true);
+        pps->setMaxCuDQPDepth(m_maxCuDQPDepth);
+        pps->setMinCuDQPSize(pps->getSPS()->getMaxCUWidth() >> (pps->getMaxCuDQPDepth()));
+    }
+    else
+    {
+        pps->setUseDQP(false);
+        pps->setMaxCuDQPDepth(0);
+        pps->setMinCuDQPSize(pps->getSPS()->getMaxCUWidth() >> (pps->getMaxCuDQPDepth()));
+    }
+
+    pps->setChromaCbQpOffset(param.cbQpOffset);
+    pps->setChromaCrQpOffset(param.crQpOffset);
+
+    pps->setEntropyCodingSyncEnabledFlag(param.bEnableWavefront);
+    pps->setUseWP(param.bEnableWeightedPred);
+    pps->setWPBiPred(param.bEnableWeightedBiPred);
+    pps->setOutputFlagPresentFlag(false);
+    pps->setSignHideFlag(param.bEnableSignHiding);
+    pps->setDeblockingFilterControlPresentFlag(!param.bEnableLoopFilter);
+    pps->setDeblockingFilterOverrideEnabledFlag(!m_loopFilterOffsetInPPS);
+    pps->setPicDisableDeblockingFilterFlag(!param.bEnableLoopFilter);
+    pps->setLog2ParallelMergeLevelMinus2(m_log2ParallelMergeLevelMinus2);
+    pps->setCabacInitPresentFlag(param.frameNumThreads > 1 ? 0 : CABAC_INIT_PRESENT_FLAG);
+
+    pps->setNumRefIdxL0DefaultActive(1);
+    pps->setNumRefIdxL1DefaultActive(1);
+
+    pps->setTransquantBypassEnableFlag(getTransquantBypassEnableFlag());
+    pps->setUseTransformSkip(param.bEnableTransformSkip);
+    pps->setLoopFilterAcrossTilesEnabledFlag(m_loopFilterAcrossTilesEnabledFlag);
+}
+
+void Encoder::determineLevelAndProfile(x265_param_t *_param)
 {
     // this is all based on the table at on Wikipedia at
     // http://en.wikipedia.org/wiki/High_Efficiency_Video_Coding#Profiles
@@ -185,7 +973,7 @@
     x265_log(_param, X265_LOG_INFO, "%s profile, Level-%s (%s tier)\n", profiles[m_profile], level, tiers[m_levelTier]);
 }
 
-void x265_t::configure(x265_param_t *_param)
+void Encoder::configure(x265_param_t *_param)
 {
     // Trim the thread pool if WPP is disabled
     if (!_param->bEnableWavefront)
@@ -339,123 +1127,7 @@
     m_CUTransquantBypassFlagValue = false;
 }
 
-extern "C"
-x265_t *x265_encoder_open(x265_param_t *param)
-{
-    x265_setup_primitives(param, -1);  // -1 means auto-detect if uninitialized
-
-    if (x265_check_params(param))
-        return NULL;
-
-    if (x265_set_globals(param))
-        return NULL;
-
-    x265_t *encoder = new x265_t;
-    if (encoder)
-    {
-        // these may change params for auto-detect, etc
-        encoder->determineLevelAndProfile(param);
-        encoder->configure(param);
-
-        // save a copy of final parameters in TEncCfg
-        memcpy(&encoder->param, param, sizeof(*param));
-
-        x265_print_params(param);
-        encoder->create();
-        encoder->init();
-    }
-
-    return encoder;
-}
-
-extern "C"
-int x265_encoder_headers(x265_t *encoder, x265_nal_t **pp_nal, int *pi_nal)
-{
-    if (!pp_nal)
-        return 0;
-
-    int ret = 0;
-    NALUnitEBSP *nalunits[MAX_NAL_UNITS] = {0, 0, 0, 0, 0};
-    if (!encoder->getStreamHeaders(nalunits))
-    {
-        int nalcount = encoder->extract_naldata(nalunits);
-        *pp_nal = &encoder->m_nals[0];
-        if (pi_nal) *pi_nal = nalcount;
-    }
-    else if (pi_nal)
-    {
-        *pi_nal = 0;
-        ret = -1;
-    }
-
-    for (int i = 0; i < MAX_NAL_UNITS; i++)
-    {
-        if (nalunits[i])
-        {
-            free(nalunits[i]->m_nalUnitData);
-            X265_FREE(nalunits[i]);
-        }
-    }
-
-    return ret;
-}
-
-extern "C"
-int x265_encoder_encode(x265_t *encoder, x265_nal_t **pp_nal, int *pi_nal, x265_picture_t *pic_in, x265_picture_t *pic_out)
-{
-    NALUnitEBSP *nalunits[MAX_NAL_UNITS] = {0, 0, 0, 0, 0};
-    int numEncoded = encoder->encode(!pic_in, pic_in, pic_out, nalunits);
-
-    if (pp_nal && numEncoded > 0)
-    {
-        int nalcount = encoder->extract_naldata(nalunits);
-        *pp_nal = &encoder->m_nals[0];
-        if (pi_nal) *pi_nal = nalcount;
-    }
-    else if (pi_nal)
-        *pi_nal = 0;
-
-    for (int i = 0; i < MAX_NAL_UNITS; i++)
-    {
-        if (nalunits[i])
-        {
-            free(nalunits[i]->m_nalUnitData);
-            X265_FREE(nalunits[i]);
-        }
-    }
-    return numEncoded;
-}
-
-EXTERN_CYCLE_COUNTER(ME);
-
-extern "C"
-void x265_encoder_get_stats(x265_t *encoder, x265_stats_t *outputStats)
-{
-    encoder->fetchStats(outputStats);
-}
-
-extern "C"
-void x265_encoder_close(x265_t *encoder, double *outPsnr)
-{
-    double globalPsnr = encoder->printSummary();
-
-    if (outPsnr)
-        *outPsnr = globalPsnr;
-
-    REPORT_CYCLE_COUNTER(ME);
-
-    encoder->destroy();
-    delete encoder;
-}
-
-extern "C"
-void x265_cleanup(void)
-{
-    destroyROM();
-    BitCost::destroy();
-}
-
-int x265_t::extract_naldata(NALUnitEBSP **nalunits)
+int Encoder::extractNalData(NALUnitEBSP **nalunits)
 {
     uint32_t memsize = 0;
     uint32_t offset = 0;
@@ -520,3 +1192,124 @@
 fail:
     return nalcount;
 }
+
+extern "C"
+x265_t *x265_encoder_open(x265_param_t *param)
+{
+    x265_setup_primitives(param, -1);  // -1 means auto-detect if uninitialized
+
+    if (x265_check_params(param))
+        return NULL;
+
+    if (x265_set_globals(param))
+        return NULL;
+
+    Encoder *encoder = new Encoder;
+    if (encoder)
+    {
+        // these may change params for auto-detect, etc
+        encoder->determineLevelAndProfile(param);
+        encoder->configure(param);
+
+        // save a copy of final parameters in TEncCfg
+        memcpy(&encoder->param, param, sizeof(*param));
+
+        x265_print_params(param);
+        encoder->create();
+        encoder->init();
+    }
+
+    return encoder;
+}
+
+extern "C"
+int x265_encoder_headers(x265_t *enc, x265_nal_t **pp_nal, int *pi_nal)
+{
+    if (!pp_nal)
+        return 0;
+
+    Encoder *encoder = static_cast<Encoder*>(enc);
+
+    int ret = 0;
+    NALUnitEBSP *nalunits[MAX_NAL_UNITS] = {0, 0, 0, 0, 0};
+    if (!encoder->getStreamHeaders(nalunits))
+    {
+        int nalcount = encoder->extractNalData(nalunits);
+        *pp_nal = &encoder->m_nals[0];
+        if (pi_nal) *pi_nal = nalcount;
+    }
+    else if (pi_nal)
+    {
+        *pi_nal = 0;
+        ret = -1;
+    }
+
+    for (int i = 0; i < MAX_NAL_UNITS; i++)
+    {
+        if (nalunits[i])
+        {
+            free(nalunits[i]->m_nalUnitData);
+            X265_FREE(nalunits[i]);
+        }
+    }
+
+    return ret;
+}
+
+extern "C"
+int x265_encoder_encode(x265_t *enc, x265_nal_t **pp_nal, int *pi_nal, x265_picture_t *pic_in, x265_picture_t *pic_out)
+{
+    Encoder *encoder = static_cast<Encoder*>(enc);
+    NALUnitEBSP *nalunits[MAX_NAL_UNITS] = {0, 0, 0, 0, 0};
+    int numEncoded = encoder->encode(!pic_in, pic_in, pic_out, nalunits);
+
+    if (pp_nal && numEncoded > 0)
+    {
+        int nalcount = encoder->extractNalData(nalunits);
+        *pp_nal = &encoder->m_nals[0];
+        if (pi_nal) *pi_nal = nalcount;
+    }
+    else if (pi_nal)
+        *pi_nal = 0;
+
+    for (int i = 0; i < MAX_NAL_UNITS; i++)
+    {
+        if (nalunits[i])
+        {
+            free(nalunits[i]->m_nalUnitData);
+            X265_FREE(nalunits[i]);
+        }
+    }
+    return numEncoded;
+}
+
+EXTERN_CYCLE_COUNTER(ME);
+
+extern "C"
+void x265_encoder_get_stats(x265_t *enc, x265_stats_t *outputStats)
+{
+    Encoder *encoder = static_cast<Encoder*>(enc);
+    encoder->fetchStats(outputStats);
+}
+
+extern "C"
+void x265_encoder_close(x265_t *enc, double *outPsnr)
+{
+    Encoder *encoder = static_cast<Encoder*>(enc);
+    double globalPsnr = encoder->printSummary();
+
+    if (outPsnr)
+        *outPsnr = globalPsnr;
+
+    REPORT_CYCLE_COUNTER(ME);
+
+    encoder->destroy();
+    delete encoder;
+}
+
+extern "C"
+void x265_cleanup(void)
+{
+    destroyROM();
+    BitCost::destroy();
+}
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/encoder.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/encoder/encoder.h	Wed Oct 09 00:52:30 2013 -0500
@@ -0,0 +1,110 @@
+/*****************************************************************************
+ * Copyright (C) 2013 x265 project
+ *
+ * Authors: Steve Borho <steve at borho.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
+ *
+ * This program is also available under a commercial proprietary license.
+ * For more information, contact us at licensing at multicorewareinc.com.
+ *****************************************************************************/
+
+#ifndef X265_ENCODER_H
+#define X265_ENCODER_H
+
+#include "x265.h"
+
+#include "TLibEncoder/TEncCfg.h"
+#include "TLibEncoder/TEncAnalyze.h"
+
+struct x265_t {};
+
+namespace x265 {
+// private namespace
+
+class FrameEncoder;
+class DPB;
+struct Lookahead;
+struct RateControl;
+class ThreadPool;
+struct NALUnitEBSP;
+
+class Encoder : public TEncCfg, public x265_t
+{
+private:
+
+    int                m_pocLast;          ///< time index (POC)
+    TComList<TComPic*> m_freeList;
+
+    ThreadPool*        m_threadPool;
+    Lookahead*         m_lookahead;
+    FrameEncoder*      m_frameEncoder;
+    DPB*               m_dpb;
+    RateControl*       m_rateControl;
+
+    /* frame parallelism */
+    int                m_curEncoder;
+
+    /* Collect statistics globally */
+    TEncAnalyze        m_analyzeAll;
+    TEncAnalyze        m_analyzeI;
+    TEncAnalyze        m_analyzeP;
+    TEncAnalyze        m_analyzeB;
+    double             m_globalSsim;
+
+    // quality control
+    TComScalingList    m_scalingList;      ///< quantization matrix information
+
+public:
+
+    x265_nal_t *m_nals;
+    char *m_packetData;
+
+    Encoder();
+
+    virtual ~Encoder();
+
+    void create();
+    void destroy();
+    void init();
+
+    void initSPS(TComSPS *sps);
+    void initPPS(TComPPS *pps);
+
+    int encode(bool bEos, const x265_picture_t* pic, x265_picture_t *pic_out, NALUnitEBSP **nalunits);
+
+    int getStreamHeaders(NALUnitEBSP **nalunits);
+
+    void fetchStats(x265_stats_t* stats);
+
+    double printSummary();
+
+    TComScalingList* getScalingList() { return &m_scalingList; }
+
+    void setThreadPool(ThreadPool* p) { m_threadPool = p; }
+
+    void configure(x265_param_t *param);
+
+    void determineLevelAndProfile(x265_param_t *param);
+
+    int  extractNalData(NALUnitEBSP **nalunits);
+
+protected:
+
+    uint64_t calculateHashAndPSNR(TComPic* pic, NALUnitEBSP **nalunits); // Returns total number of bits for encoded pic
+};
+}
+
+#endif // ifndef X265_ENCODER_H
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/frameencoder.cpp
--- a/source/encoder/frameencoder.cpp	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/encoder/frameencoder.cpp	Wed Oct 09 00:52:30 2013 -0500
@@ -26,8 +26,8 @@
 #include "PPA/ppa.h"
 #include "wavefront.h"
 
-#include "TLibEncoder/TEncTop.h"
 #include "TLibEncoder/NALwrite.h"
+#include "encoder.h"
 #include "frameencoder.h"
 #include "cturow.h"
 
@@ -98,7 +98,7 @@
     stop();
 }
 
-void FrameEncoder::init(TEncTop *top, int numRows)
+void FrameEncoder::init(Encoder *top, int numRows)
 {
     m_top = top;
     m_cfg = top;
@@ -125,12 +125,12 @@
     m_frameFilter.init(top, numRows, getRDGoOnSbacCoder(0));
 
     // initialize SPS
-    top->xInitSPS(&m_sps);
+    top->initSPS(&m_sps);
 
     // initialize PPS
     m_pps.setSPS(&m_sps);
 
-    top->xInitPPS(&m_pps);
+    top->initPPS(&m_pps);
 
     m_sps.setNumLongTermRefPicSPS(0);
     if (m_cfg->getPictureTimingSEIEnabled() || m_cfg->getDecodingUnitInfoSEIEnabled())
@@ -292,7 +292,7 @@
     // worker thread routine for FrameEncoder
     do
     {
-        m_enable.wait(); // TEncTop::encode() triggers this event
+        m_enable.wait(); // Encoder::encode() triggers this event
         if (m_threadActive)
         {
             compressFrame();
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/frameencoder.h
--- a/source/encoder/frameencoder.h	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/encoder/frameencoder.h	Wed Oct 09 00:52:30 2013 -0500
@@ -47,7 +47,7 @@
 // private x265 namespace
 
 class ThreadPool;
-class TEncTop;
+class Encoder;
 
 // Manages the wave-front processing of a single encoding frame
 class FrameEncoder : public WaveFront, public Thread
@@ -60,7 +60,7 @@
 
     void setThreadPool(ThreadPool *p);
 
-    void init(TEncTop *top, int numRows);
+    void init(Encoder *top, int numRows);
 
     void destroy();
 
@@ -169,7 +169,7 @@
 
     void determineSliceBounds();
 
-    TEncTop*                 m_top;
+    Encoder*                 m_top;
     TEncCfg*                 m_cfg;
 
     WeightPredAnalysis       m_wp;
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/framefilter.cpp
--- a/source/encoder/framefilter.cpp	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/encoder/framefilter.cpp	Wed Oct 09 00:52:30 2013 -0500
@@ -22,7 +22,7 @@
  * For more information, contact us at licensing at multicorewareinc.com.
  *****************************************************************************/
 
-#include "TLibEncoder/TEncTop.h"
+#include "encoder.h"
 #include "PPA/ppa.h"
 #include "framefilter.h"
 #include "wavefront.h"
@@ -53,7 +53,7 @@
     }
 }
 
-void FrameFilter::init(TEncTop *top, int numRows, TEncSbac* rdGoOnSbacCoder)
+void FrameFilter::init(Encoder *top, int numRows, TEncSbac* rdGoOnSbacCoder)
 {
     m_cfg = top;
     m_numRows = numRows;
diff -r fc7fbdd18bc0 -r 697ec7e3b1df source/encoder/framefilter.h
--- a/source/encoder/framefilter.h	Wed Oct 09 00:00:10 2013 -0500
+++ b/source/encoder/framefilter.h	Wed Oct 09 00:52:30 2013 -0500
@@ -32,7 +32,7 @@
 namespace x265 {
 // private x265 namespace
 
-class TEncTop;
+class Encoder;
 
 // Manages the processing of a single frame loopfilter
 class FrameFilter
@@ -43,7 +43,7 @@
 
     virtual ~FrameFilter() {}
 
-    void init(TEncTop *top, int numRows, TEncSbac* rdGoOnSbacCoder);
+    void init(Encoder *top, int numRows, TEncSbac* rdGoOnSbacCoder);
 
     void destroy();
 


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