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fix(linux/vulkan): change default rate control from VBR to CBR #5032

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Merged
ReenigneArcher merged 1 commit into from
Apr 20, 2026
Merged

fix(linux/vulkan): change default rate control from VBR to CBR #5032

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4 changes: 2 additions & 2 deletions docs/configuration.md
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Original file line number Diff line number Diff line change
Expand Up @@ -3029,13 +3029,13 @@ editing the `conf` file in a text editor. Use the examples as reference.
<tr>
<td>Default</td>
<td colspan="2">@code{}
4
2
@endcode</td>
</tr>
<tr>
<td>Example</td>
<td colspan="2">@code{}
vk_rc_mode = 2
vk_rc_mode = 4
@endcode</td>
</tr>
<tr>
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2 changes: 1 addition & 1 deletion src/config.cpp
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Expand Up @@ -503,7 +503,7 @@ namespace config {

{
2, // vk.tune (default: ll - low latency)
4, // vk.rc_mode (default: vbr)
2, // vk.rc_mode (default: cbr)
},

{}, // capture
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2 changes: 1 addition & 1 deletion src_assets/common/assets/web/config.html
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Expand Up @@ -338,7 +338,7 @@ <h1 class="my-4">{{ $t('config.configuration') }}</h1>
name: "Vulkan Encoder",
options: {
"vk_tune": 2,
"vk_rc_mode": 4,
"vk_rc_mode": 2,
},
},
{
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4 changes: 2 additions & 2 deletions src_assets/common/assets/web/public/assets/locale/en.json
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Expand Up @@ -381,11 +381,11 @@
"upnp_desc": "Automatically configure port forwarding for streaming over the Internet",
"vaapi_strict_rc_buffer": "Strictly enforce frame bitrate limits for H.264/HEVC on AMD GPUs",
"vaapi_strict_rc_buffer_desc": "Enabling this option can avoid dropped frames over the network during scene changes, but video quality may be reduced during motion.",
"vk_rc_cbr": "CBR (Constant Bitrate)",
"vk_rc_cbr": "CBR (Constant Bitrate) (default)",
"vk_rc_cqp": "CQP (Constant QP)",
"vk_rc_mode": "Rate Control",
"vk_rc_mode_desc": "Rate control mode for encoding. Auto lets the driver decide.",
"vk_rc_vbr": "VBR (Variable Bitrate) (default)",
"vk_rc_vbr": "VBR (Variable Bitrate)",
"vk_tune": "Tuning",
"vk_tune_desc": "Low latency modes reduce encoding delay at the cost of quality.",
"vk_tune_hq": "High Quality (hq)",
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