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[feat] allocate DeskHub video bandwidth automatically

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This commit is contained in:
dijunkun
2026-10-13 15:39:50 +08:00
parent de16eb3b92
commit 4dfd8c3005
13 changed files with 270 additions and 43 deletions
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libs/wire/include/preview_subscription.h
+12 -1
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@@ -25,6 +25,9 @@ struct PreviewSubscription {
int width = 0;
int height = 0;
int version = 1;
// Optional negotiated extension: total video budget for this peer, in bps.
// 0 restores normal congestion control; absent preserves legacy wire format.
std::optional<int> max_bitrate_bps;
static bool ValidResolution(int width, int height) {
return (width == 0 && height == 0) ||
@@ -45,7 +48,8 @@ struct PreviewSubscription {
frame_rate == other.frame_rate &&
EncoderPreference() == other.EncoderPreference() &&
audio == other.audio && width == other.width &&
height == other.height && version == other.version;
height == other.height && version == other.version &&
max_bitrate_bps == other.max_bitrate_bps;
}
int EncoderPreference() const {
@@ -63,6 +67,7 @@ struct PreviewSubscription {
json["width"] = width;
json["height"] = height;
}
if (max_bitrate_bps) json["max_bitrate_bps"] = *max_bitrate_bps;
return json;
}
static std::optional<PreviewSubscription> Parse(const nlohmann::json &json) {
@@ -108,6 +113,12 @@ struct PreviewSubscription {
result.height = json.at("height").get<int>();
if (!ValidResolution(result.width, result.height)) return {};
}
if (json.contains("max_bitrate_bps")) {
if (!json.at("max_bitrate_bps").is_number_integer()) return {};
const auto bitrate = json.at("max_bitrate_bps").get<int64_t>();
if (bitrate < 0 || bitrate > 100'000'000) return {};
result.max_bitrate_bps = int(bitrate);
}
return result;
} catch (...) {
return {};