Method assign

src/fl/audio/audio.h:119–126

    //     assign(begin, end, 0);  // Default timestamp to 0
    // }
    template <typename It> void assign(It begin, It end, fl::u32 timestamp) FL_NOEXCEPT {
        mSignedPcm.assign(begin, end);
        mTimestamp = timestamp;
        // Pre-compute zero crossings for O(1) access
        initZeroCrossings();
        // RMS is computed lazily on first access to avoid blocking
        mRmsComputed = false;
    }
    const VectorPCM &pcm() const FL_NOEXCEPT { return mSignedPcm; }
    VectorPCM &pcm_mutable() FL_NOEXCEPT { return mSignedPcm; }
    fl::u32 timestamp() const FL_NOEXCEPT { return mTimestamp; }