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Add audio::mixer::stream_count()

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This commit is contained in:
Nikita Lisitsa 2024-09-18 12:12:23 +03:00
parent 44672ac1fd
commit 8b5c35f89a
2 changed files with 10 additions and 0 deletions
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2
libs/audio/include/psemek/audio/combine/mixer.hpp
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@ -13,6 +13,8 @@ namespace psemek::audio
: stream : stream
{ {
virtual channel_ptr add(stream_ptr stream) = 0; virtual channel_ptr add(stream_ptr stream) = 0;
virtual std::size_t stream_count() const = 0;
}; };
using mixer_ptr = std::shared_ptr<mixer>; using mixer_ptr = std::shared_ptr<mixer>;

8
libs/audio/source/combine/mixer.cpp
View file

@ -17,6 +17,11 @@ namespace psemek::audio
{ {
channel_ptr add(stream_ptr stream) override; channel_ptr add(stream_ptr stream) override;
std::size_t stream_count() const override
{
return stream_count_.load();
}
std::size_t read(util::span<float> samples) override; std::size_t read(util::span<float> samples) override;
std::optional<std::size_t> length() const override std::optional<std::size_t> length() const override
@ -39,6 +44,7 @@ namespace psemek::audio
std::vector<channel_ptr> new_channels_; std::vector<channel_ptr> new_channels_;
std::atomic<std::size_t> played_{0}; std::atomic<std::size_t> played_{0};
std::atomic<std::size_t> stream_count_{0};
}; };
channel_ptr mixer_impl::add(stream_ptr stream) channel_ptr mixer_impl::add(stream_ptr stream)
@ -89,6 +95,8 @@ namespace psemek::audio
alive_channels_.push_back(std::move(ch)); alive_channels_.push_back(std::move(ch));
} }
stream_count_ = alive_channels_.size();
std::swap(channels_, alive_channels_); std::swap(channels_, alive_channels_);
alive_channels_.clear(); alive_channels_.clear();