Michael Fabian 'Xaymar' Dirks
208 lines
5.5 KiB
HTML
208 lines
5.5 KiB
HTML
---
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layout: default
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category: "OBS"
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title: "High Quality Recording (in OBS Studio) with AV1"
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comments: true
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date: "2023-05-05"
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redirect_from:
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- /guides/high-quality-recordings/svt-av1/
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- /guides/high-quality-recordings/aom-av1/
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---
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<p class="block">The world called for a more efficient royalty-free codec, and AV1 is the answer. It is significantly better than VP9 at the same task, and has a significant reduction in decoding complexity, putting the complexity on the encoding side instead. Given that it is a more recent codec, support for it is still relatively small - though software decoders can handle it just fine on most devices.</p>
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<details class="block" open>
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<summary>
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<h1>AMD AMF</h1>
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</summary>
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<details class="block">
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<summary>
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<h2>Built-In</h2>
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</summary>
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<figure class="block">
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<table class="block">
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<thead>
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<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>Rate Control</td>
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<td rowspan="255" colspan="2" style="vertical-align: middle; text-align: center;">N/A</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>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>Profile</td>
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<td colspan="255">Speed</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">Any, but less may be faster</td>
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</tr>
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<tr>
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<td>AMF/FFmpeg Options</td>
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<td colspan="255">preanalysis=false filler_data=false skip_frame=false</td>
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</tr>
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<tr>
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<td>OBS Color Format</td>
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<td colspan="255">NV12 (SDR), P010 (HDR)</td>
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</tr>
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</table>
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<figcaption>For empty fields, look further left.</figcaption>
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</figure>
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</details>
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<h3 class="block">Additional Notes</h3>
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<ul class="block">
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<li>AMDs AV1 encoder is only capable of 4:2:0.</li>
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<li>You can freely adjust the Key-Frame Interval for anything but Lossless. Lossless will (and should) always produce an IDR-Frame every frame.</li>
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</ul>
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</details>
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<details class="block" open>
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<summary>
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<h1>Intel QSV</h1>
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</summary>
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<details class="block">
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<summary>
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<h2>Built-In</h2>
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</summary>
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<figure class="block">
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<table class="block">
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<thead>
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<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>Rate Control</td>
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<td rowspan="255" colspan="2" style="vertical-align: middle; text-align: center;">N/A</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>CQQ</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>Target Usage</td>
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<td colspan="255">veryfast</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>Keyframe Interval</td>
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<td colspan="255">1</td>
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</tr>
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<tr>
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<td>Latency</td>
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<td colspan="255">normal</td>
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</tr>
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<tr>
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<td>OBS Color Format</td>
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<td colspan="255">NV12 (SDR), P010 (HDR)</td>
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</tr>
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</table>
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<figcaption>For empty fields, look further left.</figcaption>
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</figure>
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</details>
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<h3 class="block">Additional Notes</h3>
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<ul class="block">
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<li>Intel QSV AV1 is only capable of 4:2:0 encoding.</li>
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<li>Intels QSV AV1 encoder is tied to CPU usage, so it may perform worse than x265 would.</li>
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<li>You can freely adjust the Key-Frame Interval for anything but Lossless. Lossless will (and should) always produce an IDR-Frame every frame.</li>
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</ul>
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</details>
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<details class="block" open>
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<summary>
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<h1>NVIDIA NVENC</h1>
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</summary>
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<details class="block">
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<summary>
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<h2>Built-In</h2>
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</summary>
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<figure class="block">
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<table class="block">
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<thead>
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<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>Rate Control</td>
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<td colspan="2" rowspan="255" style="vertical-align: middle; text-align: center;">N/A</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>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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<tr>
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<td>OBS Color Format</td>
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<td colspan="255">NV12 (SDR), P010 (HDR)</td>
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</tr>
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</table>
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<figcaption>For empty fields, look further left.</figcaption>
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</figure>
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</details>
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<h3 class="block">Additional Notes</h3>
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<ul class="block">
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<li>NVIDIA NVENC AV1 is only capable of 4:2:0 encoding.</li>
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<li>You can freely adjust the Key-Frame Interval for anything but Lossless. Lossless will (and should) always produce an IDR-Frame every frame.</li>
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</ul>
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</details>
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