SequenceCompressor::SequenceCompressor( StreamPicInput* pin ,
EncoderParams& encp,
DiracByteStream& dirac_byte_stream):
m_all_done(false),
m_just_finished(true),
m_srcparams(pin->GetSourceParams()),
m_encparams(encp),
m_predparams(encp.GetPicPredParams()),
m_L1_sep(encp.L1Sep()),
m_pparams(m_srcparams.CFormat(),
m_encparams.Xl(),
m_encparams.Yl(),
m_encparams.LumaDepth(),
m_encparams.ChromaDepth() ),
m_pic_in(pin),
m_current_display_pnum(-1),
m_current_code_pnum(0),
m_show_pnum(-1),m_last_picture_read(-1),
m_gop_start_num(0),
m_delay(1),
m_qmonitor( m_encparams ),
m_pcoder( m_encparams ),
m_dirac_byte_stream(dirac_byte_stream),
m_eos_signalled(false)
{
// Set up the compression of the sequence
//TBD: put into the constructor for EncoderParams
m_encparams.SetEntropyFactors( new EntropyCorrector(m_encparams.TransformDepth()) );
// Set up generic picture parameters
m_pparams.SetUsingAC(m_encparams.UsingAC() );
// Set up a rate controller if rate control being used
if (m_encparams.TargetRate() != 0)
m_ratecontrol = new RateController(m_encparams.TargetRate(),
m_pic_in->GetSourceParams(), encp);
// Copy in the block parameters in case we want to change them dynamically
m_basic_olb_params2 = &m_predparams.LumaBParams(2);
m_basic_olb_params1 = new OLBParams( 2*m_predparams.LumaBParams(2).Xblen(),
2*m_predparams.LumaBParams(2).Yblen(),
2*m_predparams.LumaBParams(2).Xbsep(),
2*m_predparams.LumaBParams(2).Ybsep() );
m_basic_olb_params0 = new OLBParams( 4*m_predparams.LumaBParams(2).Xblen(),
4*m_predparams.LumaBParams(2).Yblen(),
4*m_predparams.LumaBParams(2).Xbsep(),
4*m_predparams.LumaBParams(2).Ybsep() );
m_intra_olbp = new OLBParams( 2*m_basic_olb_params2->Xbsep() ,
2*m_basic_olb_params2->Ybsep() ,
m_basic_olb_params2->Xbsep() ,
m_basic_olb_params2->Ybsep() );
SetMotionParameters();
}
void SetDefaultEncoderParameters(EncoderParams& encparams)
{
encparams.SetLossless(false);
encparams.SetQf(5.5f);
encparams.GetPicPredParams().SetMVPrecision(MV_PRECISION_HALF_PIXEL);
encparams.SetUsingAC(true);
switch (encparams.GetVideoFormat())
{
case VIDEO_FORMAT_4SIF525:
case VIDEO_FORMAT_4CIF:
case VIDEO_FORMAT_SD_480I60:
case VIDEO_FORMAT_SD_576I50:
encparams.SetL1Sep(3);
encparams.SetNumL1(7);
encparams.SetCPD(32.0f);
break;
case VIDEO_FORMAT_HD_720P60:
case VIDEO_FORMAT_HD_720P50:
encparams.SetL1Sep(3);
encparams.SetNumL1(15);
encparams.SetCPD(20.0f);
break;
case VIDEO_FORMAT_HD_1080I60:
case VIDEO_FORMAT_HD_1080I50:
case VIDEO_FORMAT_HD_1080P60:
case VIDEO_FORMAT_HD_1080P50:
encparams.SetL1Sep(3);
encparams.SetNumL1(7);
encparams.SetCPD(32.0f);
break;
case VIDEO_FORMAT_UHDTV_4K60:
case VIDEO_FORMAT_UHDTV_4K50:
case VIDEO_FORMAT_UHDTV_8K60:
case VIDEO_FORMAT_UHDTV_8K50:
encparams.SetL1Sep(6);
encparams.SetNumL1(7);
encparams.SetCPD(48.0f);
break;
case VIDEO_FORMAT_CIF:
default:
encparams.SetL1Sep(3);
encparams.SetNumL1(19);
encparams.SetCPD(20.0f);
break;
}
}
