Michael Fabian 'Xaymar' Dirks
431 lines
9.6 KiB
HTML
431 lines
9.6 KiB
HTML
---
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layout: default
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category: "OBS"
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title: "High Quality Recordings with NVIDIA NVENC (in OBS® Studio)"
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comments: true
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date: "2022-02-18"
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---
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<p class="block">The "Green" team has hardware capable of significantly more than the competition, and offers more flexibility in terms of configuration and quality. While not always the best in quality, and often optimizing for a different type of quality than would be expected, they are decent options with a variety of choices. NVIDIA has a good foundation in both live and offline content creation, and constantly aims to improve on this.</p>
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<details class="block" open><summary><h2>AV1</h2></summary>
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<table class="block">
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<thead><tr>
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<th>Option</th>
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<th width="16%">Lossless</th>
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<th width="16%">Near Lossless</th>
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<th width="16%">Indistinguishable</th>
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<th width="16%">High Quality</th>
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<th width="16%">Acceptable Quality</th>
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</tr></thead>
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<tr>
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<td>Rate Control</td>
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<td colspan="255">CQP</td>
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</tr>
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<tr>
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<td>CQ Level</td>
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<td>0</td>
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<td>1 - 4</td>
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<td>5 - 10</td>
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<td>11 - 16</td>
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<td>17 - 22+</td>
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</tr>
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<tr>
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<td>Preset</td>
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<td colspan="255">P1: Fastest (Lowest Quality)</td>
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</tr>
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<tr>
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<td>Tuning</td>
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<td colspan="255">High Quality</td>
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</tr>
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<tr>
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<td>Multipass Mode</td>
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<td colspan="255">Single Pass</td>
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</tr>
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<tr>
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<td>Profile</td>
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<td colspan="255">main</td>
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</tr>
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<tr>
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<td>Look-ahead</td>
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<td colspan="255">Disabled</td>
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</tr>
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<tr>
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<td>Psycho Visual Tuning</td>
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<td colspan="255">Disabled</td>
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</tr>
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<tr>
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<td>Max B-frames</td>
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<td colspan="255">0</td>
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</tr>
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</table></details>
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<details class="block" open><summary><h2>H265/HEVC (with StreamFX)</h2></summary>
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<table class="block">
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<thead><tr>
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<th>Option</th>
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<th width="16%">Lossless</th>
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<th width="16%">Near Lossless</th>
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<th width="16%">Indistinguishable</th>
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<th width="16%">High Quality</th>
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<th width="16%">Acceptable Quality</th>
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</tr>
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</thead>
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<tr>
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<td>Preset</td>
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<td colspan=255>Fastest (P1)</td>
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</tr>
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<tr>
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<td>Tune</td>
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<td>Lossless</td>
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<td colspan=255>High Quality</td>
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</tr>
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<tr>
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<th colspan=255>H265</th>
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</tr>
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<tr>
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<td>Profile</td>
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<td colspan=255>Main</td>
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</tr>
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<tr>
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<td>Tier</td>
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<td colspan=255>High</td>
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</tr>
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<tr>
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<td>Level</td>
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<td colspan=255>Automatic</td>
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</tr>
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<tr>
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<th colspan=255>Rate Control Options</th>
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</tr>
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<tr>
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<td>Mode</td>
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<td colspan=255>Constant Quantization Parameter</td>
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</tr>
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<tr>
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<td>Multi-Pass</td>
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<td colspan=255>Single Pass</td>
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</tr>
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<tr>
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<td>Look Ahead</td>
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<td colspan=255>0 frames</td>
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</tr>
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<tr>
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<td>Adaptive I-Frames</td>
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<td colspan=255>Disabled</td>
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</tr>
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<tr>
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<td>Adaptive B-Frames</td>
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<td colspan=255>Disabled</td>
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</tr>
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<tr>
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<th colspan=255>Quantization Parameters</th>
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</tr>
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<tr>
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<td>I-Frame QP<br>P-Frame QP<br>B-Frame QP</td>
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<td>0</td>
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<td>0 to 4</td>
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<td>5 to 10</td>
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<td>11 to 16</td>
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<td>17 to 22</td>
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</tr>
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<tr>
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<th colspan=255>Adaptive Quantization</th>
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</tr>
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<tr>
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<td>Spatial Adaptive Quantization</td>
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<td colspan=255>Disabled</td>
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</tr>
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<tr>
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<td>Temporal Adaptive Quantization</td>
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<td colspan=255>Disabled</td>
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</tr>
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<tr>
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<th colspan=255>Other Options</th>
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</tr>
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<tr>
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<td>Maximum B-Frames</td>
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<td colspan=255><i>Any</i></td>
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</tr>
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<tr>
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<td>B-Frame Reference Mode</td>
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<td colspan=255><i>Any</i></td>
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</tr>
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<tr>
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<td>Zero Latency</td>
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<td colspan=255>Default</td>
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</tr>
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<tr>
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<td>Weighted Prediction</td>
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<td colspan=255>Default</td>
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</tr>
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<tr>
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<td>Non-reference P-Frames</td>
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<td colspan=255>Default</td>
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</tr>
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<tr>
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<td>Reference Frames</td>
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<td colspan=255>-1 frames</td>
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</tr>
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<tr>
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<td>Low Delay Key-Frame Scale</td>
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<td colspan=255>-1</td>
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</tr>
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<tr>
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<th colspan=255>Key Frames</th>
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</tr>
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<tr>
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<td>Interval Type</td>
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<td>Frames</td>
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<td colspan=255>Any</td>
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</tr>
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<tr>
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<td>Interval</td>
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<td>1 frame</td>
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<td colspan=255>Any</td>
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</tr>
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</table></details>
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<details class="block" open><summary><h2>H265/HEVC</h2></summary>
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<table class="block">
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<thead><tr>
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<th>Option</th>
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<th width="16%">Lossless</th>
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<th width="16%">Near Lossless</th>
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<th width="16%">Indistinguishable</th>
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<th width="16%">High Quality</th>
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<th width="16%">Acceptable Quality</th>
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</tr></thead>
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<tr>
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<td>Rate Control</td>
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<td colspan="255">CQP</td>
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</tr>
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<tr>
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<td>CQ Level</td>
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<td>0</td>
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<td>1 - 4</td>
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<td>5 - 10</td>
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<td>11 - 16</td>
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<td>17 - 22+</td>
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</tr>
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<tr>
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<td>Preset</td>
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<td colspan="255">P1: Fastest (Lowest Quality)</td>
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</tr>
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<tr>
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<td>Tuning</td>
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<td colspan="255">High Quality</td>
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</tr>
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<tr>
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<td>Multipass Mode</td>
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<td colspan="255">Single Pass</td>
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</tr>
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<tr>
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<td>Profile</td>
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<td colspan="255">main (for 8bit)<br>main10 (for 10bit)</td>
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</tr>
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<tr>
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<td>Look-ahead</td>
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<td colspan="255">Disabled</td>
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</tr>
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<tr>
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<td>Psycho Visual Tuning</td>
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<td colspan="255">Disabled</td>
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</tr>
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<tr>
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<td>Max B-frames</td>
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<td colspan="255">0</td>
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</tr>
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</table></details>
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<details class="block" open><summary><h2>H264/AVC (with StreamFX)</h2></summary>
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<table class="block">
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<thead><tr>
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<th>Option</th>
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<th width="16%">Lossless</th>
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<th width="16%">Near Lossless</th>
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<th width="16%">Indistinguishable</th>
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<th width="16%">High Quality</th>
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<th width="16%">Acceptable Quality</th>
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</tr>
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</thead>
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<tr>
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<td>Preset</td>
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<td colspan=255>Fastest (P1)</td>
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</tr>
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<tr>
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<td>Tune</td>
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<td>Lossless</td>
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<td colspan=255>High Quality</td>
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</tr>
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<tr>
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<th colspan=255>H264</th>
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</tr>
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<tr>
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<td>Profile</td>
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<td>High 4:4:4 Predictive</td>
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<td colspan=255>High 4:4:4 Predictive (when using I444)<br> High (when using NV12)</td>
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</tr>
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<tr>
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<td>Level</td>
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<td colspan=255>Automatic</td>
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</tr>
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<tr>
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<td>Level</td>
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<td colspan=255>Automatic</td>
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</tr>
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<tr>
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<th colspan=255>Rate Control Options</th>
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</tr>
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<tr>
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<td>Mode</td>
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<td colspan=255>Constant Quantization Parameter</td>
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</tr>
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<tr>
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<td>Multi-Pass</td>
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<td colspan=255>Single Pass</td>
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</tr>
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<tr>
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<td>Look Ahead</td>
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<td colspan=255>0 frames</td>
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</tr>
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<tr>
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<td>Adaptive I-Frames</td>
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<td colspan=255>Disabled</td>
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</tr>
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<tr>
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<td>Adaptive B-Frames</td>
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<td colspan=255>Disabled</td>
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</tr>
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<tr>
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<th colspan=255>Quantization Parameters</th>
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</tr>
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<tr>
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<td>I-Frame QP<br>P-Frame QP<br>B-Frame QP</td>
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<td>0</td>
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<td>0 to 4</td>
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<td>5 to 10</td>
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<td>11 to 16</td>
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<td>17 to 22</td>
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</tr>
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<tr>
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<th colspan=255>Adaptive Quantization</th>
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</tr>
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<tr>
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<td>Spatial Adaptive Quantization</td>
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<td colspan=255>Disabled</td>
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</tr>
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<tr>
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<td>Temporal Adaptive Quantization</td>
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<td colspan=255>Disabled</td>
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</tr>
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<tr>
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<th colspan=255>Other Options</th>
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</tr>
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<tr>
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<td>Maximum B-Frames</td>
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<td colspan=255><i>Any</i></td>
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</tr>
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<tr>
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<td>B-Frame Reference Mode</td>
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<td colspan=255><i>Any</i></td>
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</tr>
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<tr>
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<td>Zero Latency</td>
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<td colspan=255>Default</td>
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</tr>
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<tr>
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<td>Weighted Prediction</td>
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<td colspan=255>Default</td>
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</tr>
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<tr>
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<td>Non-reference P-Frames</td>
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<td colspan=255>Default</td>
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</tr>
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<tr>
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<td>Reference Frames</td>
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<td colspan=255>-1 frames</td>
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</tr>
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<tr>
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<td>Low Delay Key-Frame Scale</td>
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<td colspan=255>-1</td>
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</tr>
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<tr>
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<th colspan=255>Key Frames</th>
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</tr>
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<tr>
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<td>Interval Type</td>
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<td>Frames</td>
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<td colspan=255>Any</td>
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</tr>
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<tr>
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<td>Interval</td>
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<td>1 frame</td>
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<td colspan=255>Any</td>
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</tr>
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</table></details>
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<details class="block" open><summary><h2>H264/AVC</h2></summary>
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<table class="block">
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<thead><tr>
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<th>Option</th>
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<th width="16%">Lossless</th>
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<th width="16%">Near Lossless</th>
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<th width="16%">Indistinguishable</th>
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<th width="16%">High Quality</th>
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<th width="16%">Acceptable Quality</th>
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</tr></thead>
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<tr>
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<td>Rate Control</td>
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<td colspan="255">CQP</td>
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</tr>
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<tr>
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<td>CQ Level</td>
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<td>0</td>
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<td>1 - 4</td>
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<td>5 - 10</td>
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<td>11 - 16</td>
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<td>17 - 22+</td>
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</tr>
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<tr>
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<td>Preset</td>
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<td colspan="255">P1: Fastest (Lowest Quality)</td>
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</tr>
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<tr>
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<td>Tuning</td>
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<td colspan="255">High Quality</td>
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</tr>
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<tr>
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<td>Multipass Mode</td>
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<td colspan="255">Single Pass</td>
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</tr>
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<tr>
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<td>Profile</td>
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<td colspan="255">high</td>
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</tr>
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<tr>
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<td>Look-ahead</td>
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<td colspan="255">Disabled</td>
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</tr>
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<tr>
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<td>Psycho Visual Tuning</td>
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<td colspan="255">Disabled</td>
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</tr>
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<tr>
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<td>Max B-frames</td>
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<td colspan="255">0</td>
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</tr>
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</table></details>
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<h2 class="block">Additional Information</h2>
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<ul class="block">
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<li><i>Multi-Pass</i> at Full Resolution is a new option, and has measurably increased quality in VBR-CQ. However, it is very expensive and should be the first option changed if performance is a problem.</li>
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<li><i>Look Ahead</i> in VBR-CQ can be freely adjusted as needed, as long as it is not lower than the number of B-Frames and Reference Frames.</li>
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<li><i>Adaptive B-Frames</i> is required for VBR-CQ, as B-Frames can both increase and decrease quality if used in the wrong place. </li>
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<li>Stronger <i>Spatial Adaptive Quantization</i> will focus more bitrate towards visually complex areas, but may starve smoother areas of the bitrate it needs.</li>
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<li>The Key Frames <i>Interval</i> can be freely adjusted for anything but Lossless, as I-only encoding is required to guarantee the least data loss.</li>
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<li>The old presets were deprecated by NVIDIA and now map to the new P1-P7 presets, which come with massive performance or quality boosts. <i>High Quality</i> is now <i>Medium (P4)</i>, while <i>High Performance</i> is closer to <i>Faster (P2)</i>.</li>
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</ul>
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<p class="block align-center"><a href="../">Back to the Guide</a></p>
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