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obs-qsv11: Adjust Subjective Video Enhancements
Disable MBBRC (macro block level bitrate control) because it can reduce objective quality metrics like VMAF. Use AdaptiveCQM for CBR and VBR.
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@ -130,7 +130,6 @@ typedef struct {
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mfxU32 MinDisplayMasteringLuminance;
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mfxU16 MaxContentLightLevel;
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mfxU16 MaxPicAverageLightLevel;
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bool bMBBRC;
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bool bCQM;
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bool video_fmt_10bit;
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} qsv_param_t;
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@ -335,8 +335,6 @@ mfxStatus QSV_Encoder_Internal::InitParams(qsv_param_t *pParams,
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if (pParams->nRateControl == MFX_RATECONTROL_LA_ICQ ||
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pParams->nRateControl == MFX_RATECONTROL_LA)
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m_co2.LookAheadDepth = pParams->nLADEPTH;
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if (pParams->bMBBRC)
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m_co2.MBBRC = MFX_CODINGOPTION_ON;
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if (pParams->nbFrames > 1)
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m_co2.BRefType = MFX_B_REF_PYRAMID;
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if (m_mfxEncParams.mfx.LowPower == MFX_CODINGOPTION_ON) {
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@ -356,6 +354,7 @@ mfxStatus QSV_Encoder_Internal::InitParams(qsv_param_t *pParams,
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m_co3.Header.BufferId = MFX_EXTBUFF_CODING_OPTION3;
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m_co3.Header.BufferSz = sizeof(m_co3);
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m_co3.ScenarioInfo = MFX_SCENARIO_GAME_STREAMING;
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m_co3.AdaptiveCQM = MFX_CODINGOPTION_ON;
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extendedBuffers.push_back((mfxExtBuffer *)&m_co3);
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}
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@ -187,7 +187,7 @@ static void obs_qsv_defaults(obs_data_t *settings, int ver,
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obs_data_set_default_int(settings, "keyint_sec", 3);
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obs_data_set_default_string(settings, "latency", "normal");
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obs_data_set_default_int(settings, "bframes", 3);
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obs_data_set_default_bool(settings, "enhancements", false);
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obs_data_set_default_bool(settings, "enhancements", true);
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}
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static void obs_qsv_defaults_h264_v1(obs_data_t *settings)
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@ -717,7 +717,6 @@ static void update_params(struct obs_qsv *obsqsv, obs_data_t *settings)
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obsqsv->params.nbFrames = (mfxU16)bFrames;
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obsqsv->params.nKeyIntSec = (mfxU16)keyint_sec;
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obsqsv->params.nICQQuality = (mfxU16)icq_quality;
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obsqsv->params.bMBBRC = enhancements;
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obsqsv->params.bCQM = enhancements;
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info("settings:\n"
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