mirror of
https://github.com/obsproject/obs-studio.git
synced 2024-07-08 12:24:09 +00:00
obs-qsv11: Refactor and tune Look-ahead settings
Enable Low Power Look-ahead (VDENC LA) after Intel Arc Graphics. Change LA_DEPTH defaults (60 frames for normal latency and 30 frames for low latency). Keep VME Look-ahead only for certain Intel platforms (ICL, TGL, ADL, and RPL). Disable VME LA for HEVC
This commit is contained in:
Gale
Ryan Foster
parent
1d95575088
commit
a790302dbd
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@ -258,22 +258,18 @@ mfxStatus QSV_Encoder_Internal::InitParams(qsv_param_t *pParams,
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m_mfxEncParams.mfx.FrameInfo.CropH = pParams->nHeight;
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m_mfxEncParams.mfx.GopRefDist = pParams->nbFrames + 1;
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if (codec == QSV_CODEC_HEVC)
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m_mfxEncParams.mfx.LowPower = MFX_CODINGOPTION_OFF;
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mfxPlatform platform;
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MFXVideoCORE_QueryPlatform(m_session, &platform);
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#if defined(_WIN32)
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// TODO: Why isn't LowPower coding supported on VAAPI backend.
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enum qsv_cpu_platform qsv_platform = qsv_get_cpu_platform();
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if ((m_isDGPU || qsv_platform >= QSV_CPU_PLATFORM_ICL ||
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qsv_platform == QSV_CPU_PLATFORM_UNKNOWN) &&
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(pParams->nbFrames == 0) &&
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(m_ver.Major == 1 && m_ver.Minor >= 31)) {
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PRAGMA_WARN_PUSH
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PRAGMA_WARN_DEPRECATION
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if (codec == QSV_CODEC_AVC || codec == QSV_CODEC_HEVC) {
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if (platform.CodeName >= MFX_PLATFORM_DG2)
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m_mfxEncParams.mfx.LowPower = MFX_CODINGOPTION_ON;
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} else if (codec == QSV_CODEC_AV1) {
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m_mfxEncParams.mfx.LowPower = MFX_CODINGOPTION_ON;
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if (pParams->nRateControl == MFX_RATECONTROL_LA_ICQ ||
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pParams->nRateControl == MFX_RATECONTROL_LA_HRD ||
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pParams->nRateControl == MFX_RATECONTROL_LA)
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pParams->nRateControl = MFX_RATECONTROL_VBR;
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}
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PRAGMA_WARN_POP
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#endif
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m_mfxEncParams.mfx.RateControlMethod = pParams->nRateControl;
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@ -307,16 +303,6 @@ mfxStatus QSV_Encoder_Internal::InitParams(qsv_param_t *pParams,
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case MFX_RATECONTROL_ICQ:
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m_mfxEncParams.mfx.ICQQuality = pParams->nICQQuality;
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break;
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case MFX_RATECONTROL_LA:
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m_mfxEncParams.mfx.TargetKbps = pParams->nTargetBitRate;
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break;
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case MFX_RATECONTROL_LA_ICQ:
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m_mfxEncParams.mfx.ICQQuality = pParams->nICQQuality;
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break;
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case MFX_RATECONTROL_LA_HRD:
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m_mfxEncParams.mfx.TargetKbps = pParams->nTargetBitRate;
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m_mfxEncParams.mfx.MaxKbps = pParams->nTargetBitRate;
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break;
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default:
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break;
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}
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@ -328,37 +314,59 @@ mfxStatus QSV_Encoder_Internal::InitParams(qsv_param_t *pParams,
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(float)pParams->nFpsDen)
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: 240;
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if (m_ver.Major == 1 && m_ver.Minor >= 8) {
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memset(&m_co2, 0, sizeof(mfxExtCodingOption2));
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m_co2.Header.BufferId = MFX_EXTBUFF_CODING_OPTION2;
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m_co2.Header.BufferSz = sizeof(m_co2);
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if (codec != QSV_CODEC_AVC)
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m_co2.RepeatPPS = MFX_CODINGOPTION_ON;
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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->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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if (codec == QSV_CODEC_AVC)
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m_co2.RepeatPPS = MFX_CODINGOPTION_OFF;
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if (pParams->nRateControl == MFX_RATECONTROL_CBR ||
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pParams->nRateControl == MFX_RATECONTROL_VBR) {
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m_co2.LookAheadDepth = pParams->nLADEPTH;
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}
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memset(&m_co2, 0, sizeof(mfxExtCodingOption2));
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m_co2.Header.BufferId = MFX_EXTBUFF_CODING_OPTION2;
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m_co2.Header.BufferSz = sizeof(m_co2);
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m_co2.RepeatPPS = MFX_CODINGOPTION_OFF;
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memset(&m_co3, 0, sizeof(mfxExtCodingOption3));
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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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if (codec != QSV_CODEC_AVC)
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m_co2.RepeatPPS = 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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PRAGMA_WARN_PUSH
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PRAGMA_WARN_DEPRECATION
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// LA VME/ENC case for older platforms
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if (pParams->nLADEPTH && codec == QSV_CODEC_AVC &&
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m_mfxEncParams.mfx.LowPower != MFX_CODINGOPTION_ON &&
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platform.CodeName >= MFX_PLATFORM_ICELAKE) {
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if (pParams->nRateControl == MFX_RATECONTROL_CBR) {
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pParams->nRateControl = MFX_RATECONTROL_LA_HRD;
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} else if (pParams->nRateControl == MFX_RATECONTROL_VBR) {
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pParams->nRateControl = MFX_RATECONTROL_LA;
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} else if (pParams->nRateControl == MFX_RATECONTROL_ICQ) {
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pParams->nRateControl = MFX_RATECONTROL_LA_ICQ;
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}
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m_co2.LookAheadDepth = pParams->nLADEPTH;
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}
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PRAGMA_WARN_POP
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// LA VDENC case for newer platform, works only under CBR / VBR
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if (pParams->nRateControl == MFX_RATECONTROL_CBR ||
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pParams->nRateControl == MFX_RATECONTROL_VBR) {
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if (pParams->nLADEPTH &&
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m_mfxEncParams.mfx.LowPower == MFX_CODINGOPTION_ON) {
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m_co2.LookAheadDepth = pParams->nLADEPTH;
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m_co3.ScenarioInfo = MFX_SCENARIO_GAME_STREAMING;
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}
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// CQM to follow UI setting
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if (pParams->bCQM) {
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m_co3.AdaptiveCQM = MFX_CODINGOPTION_ON;
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if (m_co3.ScenarioInfo != MFX_SCENARIO_GAME_STREAMING) {
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m_co3.ScenarioInfo =
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MFX_SCENARIO_GAME_STREAMING;
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}
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} else {
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m_co3.AdaptiveCQM = MFX_CODINGOPTION_OFF;
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}
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extendedBuffers.push_back((mfxExtBuffer *)&m_co2);
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}
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if ((m_mfxEncParams.mfx.LowPower == MFX_CODINGOPTION_ON) ||
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(pParams->bCQM && m_ver.Major == 1 && m_ver.Minor >= 16)) {
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memset(&m_co3, 0, sizeof(mfxExtCodingOption3));
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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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extendedBuffers.push_back((mfxExtBuffer *)&m_co2);
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extendedBuffers.push_back((mfxExtBuffer *)&m_co3);
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if (codec == QSV_CODEC_HEVC) {
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if ((pParams->nWidth & 15) || (pParams->nHeight & 15)) {
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@ -257,14 +257,22 @@ static bool update_latency(obs_data_t *settings)
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update = true;
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}
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const char *rate_control =
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obs_data_get_string(settings, "rate_control");
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bool lookahead = false;
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if (astrcmpi(rate_control, "LA_CBR") == 0) {
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obs_data_set_string(settings, "rate_control", "CBR");
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lookahead = true;
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} else if (astrcmpi(rate_control, "LA_VBR") == 0) {
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obs_data_set_string(settings, "rate_control", "VBR");
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lookahead = true;
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} else if (astrcmpi(rate_control, "LA_ICQ") == 0) {
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obs_data_set_string(settings, "rate_control", "ICQ");
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lookahead = true;
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}
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if (update) {
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const char *rate_control =
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obs_data_get_string(settings, "rate_control");
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bool lookahead = astrcmpi(rate_control, "LA_CBR") == 0 ||
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astrcmpi(rate_control, "LA_VBR") == 0 ||
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astrcmpi(rate_control, "LA_ICQ") == 0;
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if (lookahead) {
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if (la_depth == 0 || la_depth >= 15)
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obs_data_set_string(settings, "latency",
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@ -350,7 +358,6 @@ static bool rate_control_modified(obs_properties_t *ppts, obs_property_t *p,
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obs_property_set_visible(p, bVisible);
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bVisible = astrcmpi(rate_control, "CQP") == 0 ||
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astrcmpi(rate_control, "LA_ICQ") == 0 ||
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astrcmpi(rate_control, "ICQ") == 0;
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p = obs_properties_get(ppts, "bitrate");
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obs_property_set_visible(p, !bVisible);
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@ -375,8 +382,7 @@ static bool rate_control_modified(obs_properties_t *ppts, obs_property_t *p,
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if (p)
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obs_property_set_visible(p, bVisible);
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bVisible = astrcmpi(rate_control, "ICQ") == 0 ||
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astrcmpi(rate_control, "LA_ICQ") == 0;
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bVisible = astrcmpi(rate_control, "ICQ") == 0;
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p = obs_properties_get(ppts, "icq_quality");
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obs_property_set_visible(p, bVisible);
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@ -687,29 +693,20 @@ static void update_params(struct obs_qsv *obsqsv, obs_data_t *settings)
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obsqsv->params.nRateControl = MFX_RATECONTROL_AVBR;
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else if (astrcmpi(rate_control, "ICQ") == 0)
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obsqsv->params.nRateControl = MFX_RATECONTROL_ICQ;
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else if (astrcmpi(rate_control, "LA_ICQ") == 0)
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obsqsv->params.nRateControl = MFX_RATECONTROL_LA_ICQ;
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else if (astrcmpi(rate_control, "LA_VBR") == 0)
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obsqsv->params.nRateControl = MFX_RATECONTROL_LA;
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else if (astrcmpi(rate_control, "LA_CBR") == 0)
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obsqsv->params.nRateControl = MFX_RATECONTROL_LA_HRD;
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if (obsqsv->codec == QSV_CODEC_AV1) {
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obsqsv->params.nLADEPTH = (mfxU16)0;
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if (astrcmpi(latency, "ultra-low") == 0) {
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obsqsv->params.nAsyncDepth = 1;
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} else if (astrcmpi(latency, "low") == 0) {
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obsqsv->params.nAsyncDepth = 4;
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obsqsv->params.nLADEPTH = 0;
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} else {
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if (astrcmpi(latency, "ultra-low") == 0) {
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obsqsv->params.nAsyncDepth = 1;
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obsqsv->params.nLADEPTH = (mfxU16)0;
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} else if (astrcmpi(latency, "low") == 0) {
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obsqsv->params.nAsyncDepth = 4;
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obsqsv->params.nLADEPTH =
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(mfxU16)(voi->fps_num / voi->fps_den / 2);
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} else if (astrcmpi(latency, "normal") == 0) {
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obsqsv->params.nAsyncDepth = 4;
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obsqsv->params.nLADEPTH =
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(mfxU16)(voi->fps_num / voi->fps_den);
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}
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if (obsqsv->params.nRateControl == MFX_RATECONTROL_CBR ||
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obsqsv->params.nRateControl == MFX_RATECONTROL_VBR)
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obsqsv->params.nLADEPTH = 30;
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} else if (astrcmpi(latency, "normal") == 0) {
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obsqsv->params.nAsyncDepth = 4;
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if (obsqsv->params.nRateControl == MFX_RATECONTROL_CBR ||
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obsqsv->params.nRateControl == MFX_RATECONTROL_VBR)
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obsqsv->params.nLADEPTH = 60;
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}
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if (obsqsv->params.nLADEPTH > 0) {
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@ -749,8 +746,7 @@ static void update_params(struct obs_qsv *obsqsv, obs_data_t *settings)
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"\trate_control: %s",
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codec, rate_control);
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if (obsqsv->params.nRateControl != MFX_RATECONTROL_LA_ICQ &&
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obsqsv->params.nRateControl != MFX_RATECONTROL_ICQ &&
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if (obsqsv->params.nRateControl != MFX_RATECONTROL_ICQ &&
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obsqsv->params.nRateControl != MFX_RATECONTROL_CQP)
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blog(LOG_INFO, "\ttarget_bitrate: %d",
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(int)obsqsv->params.nTargetBitRate);
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@ -760,14 +756,11 @@ static void update_params(struct obs_qsv *obsqsv, obs_data_t *settings)
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blog(LOG_INFO, "\tmax_bitrate: %d",
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(int)obsqsv->params.nMaxBitRate);
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if (obsqsv->params.nRateControl == MFX_RATECONTROL_LA_ICQ ||
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obsqsv->params.nRateControl == MFX_RATECONTROL_ICQ)
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if (obsqsv->params.nRateControl == MFX_RATECONTROL_ICQ)
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blog(LOG_INFO, "\tICQ Quality: %d",
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(int)obsqsv->params.nICQQuality);
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if (obsqsv->params.nRateControl == MFX_RATECONTROL_LA_ICQ ||
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obsqsv->params.nRateControl == MFX_RATECONTROL_LA ||
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obsqsv->params.nRateControl == MFX_RATECONTROL_LA_HRD)
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if (obsqsv->params.nLADEPTH)
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blog(LOG_INFO, "\tLookahead Depth:%d",
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(int)obsqsv->params.nLADEPTH);
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